Consulta: subjectFacets:"Infection"
Registros recuperados: 112
Data/hora: 10/06/2024 06:22:42

Efectividad biológica de insecticidas contra el psílido de la papa (Bactericera cockerelli Sulc.) en Metepec Estado de México y transmisión de bacterias no cultivadas asociadas a enfermedades en papa (Solanum tuberosum L.)
Provedor de dados: 32
Autores: López Duran, María Felipa.
Con el propósito de identificar insecticidas efectivos para el manejo del psílido de la papa Bactericera  cockerelli Sulc., y reducir la incidencia de la Punta Morada de la Papa (PMP), se realizó un experimento  en Metepec, Edo. de México, donde se evaluaron siete insecticidas de diferentes grupos toxicológicos. Los  mejores insecticidas para el control de huevos y adultos del psílido fueron extracto de nim y abamectina  con 69.8 y 84.8% de efectividad biológica, mientras que para ninfas fueron spiromesifen, bifentrina,  abamectina y flufenoxuron con 77.7% de efectividad. Sin embargo, ningún producto fue efectivo para  reducir la incidencia de la Punta Morada de la Papa.   El objetivo del segundo estudio fue determinar si B. cockerelli Sulc. transmite el...
Tipo: Tesis
Palavras-chave: Candidatus Liberibacter; Control químico; Fitoplasmas; Incidencia; Infección; Inoculación; Paratrioza; Psílido; Punta morada de la papa; Severidad; Transmisión Candidatus Liberibacter; Chemical control; Phytoplasmas; Incidence; Infection; Inoculation; Paratrioza; Potato Purple Top; Psyllid; Severity; Transmission.
Ano: 2012
URL: http://hdl.handle.net/10521/1028

Efectividad biológica de insecticidas contra el psílido de la papa (Bactericera cockerelli Sulc.) en Metepec Estado de México y transmisión de bacterias no cultivadas asociadas a enfermedades en papa (Solanum tuberosum L.)
Provedor de dados: 32
Autores: López Duran, María Felipa.
Con el propósito de identificar insecticidas efectivos para el manejo del psílido de la papa Bactericera  cockerelli Sulc., y reducir la incidencia de la Punta Morada de la Papa (PMP), se realizó un experimento  en Metepec, Edo. de México, donde se evaluaron siete insecticidas de diferentes grupos toxicológicos. Los  mejores insecticidas para el control de huevos y adultos del psílido fueron extracto de nim y abamectina  con 69.8 y 84.8% de efectividad biológica, mientras que para ninfas fueron spiromesifen, bifentrina,  abamectina y flufenoxuron con 77.7% de efectividad. Sin embargo, ningún producto fue efectivo para  reducir la incidencia de la Punta Morada de la Papa.   El objetivo del segundo estudio fue determinar si B. cockerelli Sulc. transmite el...
Tipo: Tesis
Palavras-chave: Candidatus Liberibacter; Control químico; Fitoplasmas; Incidencia; Infección; Inoculación; Paratrioza; Psílido; Punta morada de la papa; Severidad; Transmisión; Maestría; Entomología y Acarología; Chemical control; Phytoplasmas; Incidence; Infection; Inoculation; Paratrioza; Potato Purple Top; Psyllid; Severity; Transmission.
Ano: 2009
URL: http://hdl.handle.net/10521/1356

Patogénesis y sensibilidad de Penicillium sp. en cítricos a fungicidas.
Provedor de dados: 32
Autores: Pelayo Sánchez, Gabriela.
Se evaluó el efecto de seis concentraciones de conidios de Penicillium digitatum con el objetivo de determinar la concentración óptima que permita 100% de infección en frutos de limón persa en postcosecha. El hongo se aisló de frutos de limón mexicano del estado de Colima, Méx. Cada concentración (1 x 105, 3 x 105, 5 x 105, 7 x 105, 9 x 105, 1 x 106 esporas mL-1),  se colocó en heridas de 2 mm profundidad x 1mm de ancho, aproximadamente,  hechas en frutos en etapa de madurez de corte. Las concentraciones 1 x 105 y 3 x 105 esporas mL-1 mostraron una incidencia de 33 y 50 % de infección, respectivamente, mientras que los frutos inoculados con 5 x 105, 7 x 105, 9 x 105 y 1 x 106 esporas mL-1 presentaron 100% de incidencia de la enfermedad. Asimismo, se...
Palavras-chave: Esporas; Concentración; Infección; Control; Fungicidas; Eficiencia; Spores; Concentration; Infection; Fungicides; Efficiency; Fitopatología; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/1684

Infecção e colonização de raízes de arroz de sequeiro por bactérias diazotróficas endofíticas.
Provedor de dados: 14
Autores: GUIMARÃES, S. L.; SILVA, R. A. da; SANTOS, C. C. R. dos; BALDANI, J. I.; BALDANI, V. L. D.
bitstream/CNPAB-2010/27159/1/cot030.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bactéria diazotrófica endofítica; Upland rice; Colonization; Endophytic diazotrophy bacteria.; Arroz Sequeiro; Colonização; Infecção; Raiz.; Infection; Roots.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/623818

Diagnóstico da mastite bovina.
Provedor de dados: 14
Autores: OLIVEIRA, V. M. de.
Sintomas da mastite; Clinica; Subclinica; Celulas somaticas - definicao; Diagnostico da mastite clinica; Exame do ubere; Exame visual (antes da ordenha); Exame manual do ubere e tetas (apos a ordenha); Teste da caneca de fundo escuro ou caneca telada; Diagnostico diferencial da mastite; Lesoes das tetas; Diagnostico da mastite subclinica; Metodos de deteccao das celulas somaticas; CCS atraves de contadores eletronicos; Contagem direta em laminas (CDL); California Mastitis Test (CMT); Teste do Viscosimetro (WMT); Teste para medir a condutividade eletrica; Teste com o "Detector de Condutividade" manual; Sistema de condutividade acoplado a ordenhadeira mecanica; Como calcular o nivel de mastite em um rebanho; Mastite clinica; Mastite subclinica; Exames...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovine; Bovinos; Control; Controle; Diagnosis; Disease; Enfermidade; Exames; Gado de leite; Mamimary gland diseases; Mastite; Mastite bovina; Symptions.; Animal; Bovino; Diagnostico; Doença; Doença Animal; Gado Leiteiro; Infecção; Mamite; Profilaxia; Sintoma.; Animal diseases; Cattle; Dairy cattle; Mastitis.; Infection.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957987

Ceratites, ceratoconjuntivites e tumores de olhos em ovinos e caprinos, suas prováveis causas e implicações.
Provedor de dados: 14
Autores: SILVA, M. U. D. e; SILVA, E. D. F. da.
Causas; Sinais clinicos; Transmissao; Tratamento e profilaxia.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Ceratoconjuntivite; Caprino; Doença animal; Bactéria; Ceratite; Olho; Infecção; Transmissão de doença; Goats; Sheep; Animal diseases; Keratoconjunctivitis; Infection; Disease transmission; Eye diseases.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/945354

Micorrizas vesicular-arbusculares em plantas forrageiras - Aspectos agronômicos e interações microbiológicas.
Provedor de dados: 14
Autores: SOUTO, S. M.; PAULA, M. A. de; FRANCO, A. A.
Importância e limitações das MVA.Infecção de forrageiras por fungos micorrizicos vesicular-arbusculares (FMVA). Seleção de MVA para forrageiras.Simbiose leguminosa + FMVA + Rhizobium. Efeito de agrotóxicos na simbiose FMVA+Rhizobium+ leguminosa.Efeito de FMVA na nodulação e FBN em leguminosas. Competição da tríplice simbiose por fotossintatos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fixação biológica de nitrogênio; FBN; Biological nitrogen fixation; BNF.; Agrotóxico; Infecção; Nodulação; Micorriza Vesicular Arbuscular; Planta Forrageira; Rhizobium; Simbiose.; Infection; Nodulation; Pastures; Pesticides; Symbiosis; Vesicular arbuscular mycorrhizae.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/623721

Tristeza parasitária em bovinos no Pantanal de Mato Grosso do Sul.
Provedor de dados: 14
Autores: JULIANO, R. S.; SOUZA, A. I. de; ARAUJO, F. R.; MACHADO, R. Z.; GUEDES, K. M. R.
bitstream/item/125228/1/ADM158.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Infecção parasitária; Tristeza parasitária bovina (TPB).; Bovino; Carrapato.; Infection; Tick infestations.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1017407

Salinity influences disease-induced mortality of the oyster Crassostrea gigas and infectivity of the ostreid herpesvirus 1 (OsHV-1)
Provedor de dados: 5
Autores: Fuhrmann, Marine; Petton, Bruno; Quillien, Virgile; Faury, Nicole; Morga, Benjamin; Pernet, Fabrice.
Mortality of young Pacific oysters Crassostrea gigas associated with the ostreid herpesvirus 1 (OsHV-1) is occurring worldwide. Here, we examined for the first time the effect of salinity on OsHV-1 transmission and disease-related mortality of C. gigas, as well as salinity-related effects on the pathogen itself. To obtain donors for OsHV-1 transmission, we transferred laboratory-raised oysters to an estuary during a disease outbreak and then back to the laboratory. Oysters that tested OsHV-1 positive were placed in seawater tanks (35‰, 21°C). Water from these tanks was used to infect naïve oysters in 2 experimental setups: (1) oysters acclimated or non-acclimated to a salinity of 10, 15, 25 and 35‰ and (2) oysters acclimated to a salinity of 25‰; the...
Tipo: Text
Palavras-chave: Bivalve; Herpesviridae; Infection; Disease transmission; Risk analysis.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00350/46100/45781.pdf

Viruses of bivalve shellfish
Provedor de dados: 5
Autores: Renault, Tristan.
Bivalve molluscs are filter feeders and as a consequence they may bioaccumulate in their tissues viruses that infect humans and higher vertebrates. However, there have also been described mortalities of bivalve molluscs associated with viruses belonging to different families. Mass mortalities of adult Portuguese oysters, Crassostrea angulata, among French livestocks (between 1967 et 1973) were associated with irido-like virus infections. Herpesviruses were reported in the eastem oyster, Pacific oyster and European flat oyster and lately in scallops and clams. Disseminated neoplasia, a proliferative cell disorder of the circulatory system of bivalves, although of uncertain aetiology, has been suggested to be caused by retroviral infections. Other viruses...
Tipo: Text
Palavras-chave: Infection; Virus; Mollusc; Bivalve; Infection; Virus; Mollusque; Bivalve.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2925.pdf

Essais de propagation in vitro de virus de type herpès infectant les mollusques bivalves marins et contribution à l'étude des interactions hôte-virus
Provedor de dados: 5
Autores: Deniau, Stephane.
Des infections à virus de type herpès sont rapportées chez différentes espèces de mollusques bivalves, à travers le monde. Elles sont associées à de fortes mortalités de larves et de juvéniles, pendant les périodes chaudes de l'année. Ce type d'infection virale a été observé sous forme de cellules anormales au moyen de la microscopie photonique et de particules enveloppées à conformation icosaédrique, en microscopie électronique à transmission (MET). Aujourd'hui, il est possible de diagnostiquer la présence du virus grâce à des outils moléculaires tels que la polymérisation en chaîne (PCR) ou l'hybridation in situ (HIS). Cependant, l'absence de lignées cellulaires homologues représente une difficulté majeure. En effet, la recherche d'effet cytopathogène et...
Tipo: Text
Palavras-chave: Mollusques bivalves; Crassostrea gigas; Huître japonaise; Infection; Herpèsvirus; Culture cellulaire; Propagation; Mécanisme de défense; Apoptose; Récepteur au TNF; Cytométrie de flux.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00025/13631/10714.pdf

Spatio-temporal patterns of perkinsosis in the Manila clam Ruditapes philippinarum from Arcachon Bay (SW France)
Provedor de dados: 5
Autores: Dang, Cecile; De Montaudouin, Xavier; Caill-milly, Nathalie; Trumbic, Zeljka.
Pathogens belonging to the genus Perkinsus infect many bivalve molluscan species around the world, including the Manila clam Ruditapes phihppinarum. We investigated the spatial distribution of this parasite at 34 stations throughout Arcachon Bay (SW France). Prevalence of perkinsosis was 93% and mean infection abundance was 96 x 10(3) cells g(-1) wet gill. Lowest mean abundances were found close to the Leyre River mouth and a significant negative correlation was observed between mean abundance and salinity. Perkinsosis was rare at the oceanic site where salinities and other environmental parameters were stable. A second aim of this study was to survey perkinsosis during annual cycles at 4 sites within Arcachon Bay. Prevalence and intensities (+/-SE) of the...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Perkinsus sp.; Arcachon Bay; Clam; Spatio-temporal variations; Disinfection; Infection.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00017/12812/9755.pdf

Anti-Bacterial Activity of Phenolic Compounds against Streptococcus pyogenes
Provedor de dados: 5
Autores: Macé, Sabrina; Truelstrup Hansen, Lisbeth; Rupasinghe, H. P. Vasantha.
Background: Worldwide, Streptococcus pyogenes is the leading cause of bacterial pharyngitis. To reduce the use of antibiotics, antimicrobial phytochemical-containing remedies, which have long been in use in traditional medicine, may provide new approaches for management of streptococcal pharyngitis. The objective of this study was to assess the inhibitory activities of 25 natural phenolic compounds against three strains of S. pyogenes. Methods: After an initial screening, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the nine most effective phenolic compounds were determined. The effect of four compounds with the lowest MIC and MBC on streptococcal growth and biofilm formation was also studied. Results:...
Tipo: Text
Palavras-chave: Pharyngitis; Strep throat; Biofilm; Naphthoquinone; Infection; Disease; Polyphenols.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00603/71515/69934.pdf

Exploring First Interactions Between Ostreid Herpesvirus 1 (OsHV-1) and Its Host, Crassostrea gigas: Effects of Specific Antiviral Antibodies and Dextran Sulfate
Provedor de dados: 5
Autores: Martenot, Claire; Faury, Nicole; Morga, Benjamin; Degremont, Lionel; Lamy, Jean-baptiste; Houssin, Maryline; Renault, Tristan.
Viral entry mechanisms of herpesviruses constitute a highly complex process which implicates several viral glycoproteins and different receptors on the host cell surfaces. This initial infection stage was currently undescribed for Ostreid herpes virus 1 (OsHV-1), a herpesvirus infecting bivalves including the Pacific oyster, Crassostrea gigas. To identify OsHV-1 glyproteins implicated in the attachment of the virus to oyster cells, three viral putative membrane proteins, encoded by ORF 25, 41, and 72, were selected and polyclonal antibodies against these targets were used to explore first interactions between the virus and host cells. In addition, effects of dextran sulfate, a negative charged sulfated polysaccharide, were investigated on OsHV-1 infection....
Tipo: Text
Palavras-chave: OsHV-1; Antiviral antibodies; Dextran sulfate; Interaction; Crassostrea gigas; Infection.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00501/61273/64847.pdf

Bonamia ostreae, parasite of the European flat oyster, Ostrea edulis, does not experimentally infect the Japanese oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Renault, Tristan; Cochennec, Nathalie; Grizel, Henri.
The protozoan Bonamia ostreae (Ascetospora) is the etiological agent of bonamiosis, or hemocyte disease of the European fiat oyster, Ostrea edulis (Pichot et al., 1980). Since this infection was first reported from the coast of Brittany (Comps et al., 1980), the parasite has spread rapidly along the French Atlantic coasts (Grizel &amp; Tigé, 1982), and in the European countries including the UK, Holland, lreland and Spain (Bannister &amp; Key, 1982; Van Banning, 1982; Polanco et al., 1984). Under the EEC Council Directive 91/67, this parasitic protozoan is included in list II of Annex A. Serious pathogen agents for molluscs that should be obligatorily declared are placed in this list
Tipo: Text
Palavras-chave: Infection; Protozoan; Oyster; Ostrea edulis; Bonamia ostreae.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/publication-2892.pdf

Infection à virus de type Herpes chez les bivalves : transmission expérimentale et induction de l'infection
Provedor de dados: 5
Autores: Arzul, Isabelle.
Depuis 1991, d'importantes mortalités sont observées chez des lots de larves et de naissain d'huître creuse, Crassostrea gigas, mais également sur des lots de larves d'autres espèces de bivalve telles que, l'huître plate, Ostrea edulis, les palourdes, Ruditapes decussatus et Ruditapes philippinarum. Ces épizooties se produisent plus généralement à fortes températures en écloserie-nurserie et en période estivale dans le milieu naturel.  Les techniques de détection utilisées jusqu'alors pour rechercher ces infections virales, histologie et microscopie électronique à transmission, paraissent assez inadaptées, tant du fait de leur sensibilité, du temps qu'elles nécessitent et de leur coût. Aussi, le laboratoire IFREMER de Ronce les Bains (Charente-Maritime) a...
Tipo: Text
Palavras-chave: Mollusques; Bivalves; Crassostrea gigas; Huître japonaise; Pathologie; Herpèsvirus; Infection; Expérimentation.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00108/21957/19551.pdf

Viruses infecting bivalve molluscs
Provedor de dados: 5
Autores: Renault, Tristan; Novoa, Beatriz.
Bivalve molluscs are filter feeders and as a consequence they may bioaccumulate in their tissues viruses that infect humans and higher vertebrates. However, there have also been described mortalities of bivalve molluscs associated with viruses belonging to different families. Mass mortalities of adult Portuguese oysters, Crassostrea angulata, among French livestocks (between 1967 and 1973) were associated with irido-like virus infections. Herpesviruses were reported in the eastern oyster, Pacific oyster and European flat oyster and lately in scallops and clams. Disseminated neoplasia, a proliferative cell disorder of the circulatory system of bivalves, although of uncertain aetiology, has been suggested to be caused by retroviral infections. Other viruses...
Tipo: Text
Palavras-chave: Infection; Virus; Molluscs; Bivalves.
Ano: 2004
URL: https://archimer.ifremer.fr/doc/2004/publication-2910.pdf

Programme Pathologie - Rapport scientifique Année 1994 - Contrat de Plan Etat Région Poitou-Charentes 1994-1998 - Convention 94 RPC R 62
Provedor de dados: 5
Autores: Renault, Tristan; Cochennec, Nathalie; Le Deuff, Rose-marie; Chollet, Bruno; Maffart, Patricia; Haffner, Philippe; Berthe, Franck; Thuillier, Benoit.
Le but de ce programme pathologie est de recherher et d'étudier les agents pathogènes connus et inconnus chez les mollusques bivalves marins, plus particulièrement chez l'huître creuse, Crassastrea gigas, afin d'identifier d'éventuels agents causant des mortalité, de proposer des mesures prophylactiques et de définir des conditions zootechniques permettant aux professionnels de limiter l'impact des maladies sur leur cheptel. La présence de maladies, chez les mollusques bivalves marins dont l'impact socioéconomique peut être catastrophique pour les productions conchylicoles, et l'accroissement des échanges de produits d'aquaculture entre les pays de la CEE et avec les pays tiers nécessitent le renforcement des recherches dans les domaines de la pathologie....
Tipo: Text
Palavras-chave: Pathologie; Agent pathogène; Infection; Virus; Herpèsvirus; Purification; Huître creuse; Crassostrea gigas.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00044/15502/12874.pdf

Infection dynamics of a V. splendidus strain pathogenic to Mytilus edulis : In vivo and in vitro interactions with hemocytes
Provedor de dados: 5
Autores: Ben Cheikh, Yosra; Travers, Marie-agnes; Le Foll, Frank.
The pathogenic strain V. splendidus 10/068 1T1 has previously been reported for its virulence to the blue mussel and for its capacity to alter immune responses. In this study, we expanded the knowledge on hemocyte-pathogen interactions by using in vitro and in vivo assays. V. splendidus 10/068 1T1 severely inhibited cell adhesion and acidic vacuole formation unlike the innocuous phylogenetically related V. splendidus 12/056 M24T1 which had no effect on these cell functions. Furthermore, the virulent bacteria decreased hemocyte viability (59% of viability after 24 h). Infection dynamics were explored by using a model based on water tank cohabitation with septic mussels infected by GFP-tagged V. splendidus 10/068 1T1. Experimental infections were...
Tipo: Text
Palavras-chave: Innate immunity; Bivalves; Vibrio; Infection; Experimental model; Hemocyte.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00400/51136/53772.pdf

Synthèse des résultats obtenus concernant l'étude du virus de type herpès et la mise au point de méthodes de diagnostic de l'infection - Juin-Septembre 1996
Provedor de dados: 5
Autores: Renault, Tristan; Le Deuff, Rose-marie; Lipart, Cecile; Chollet, Bruno; Haffner, Philippe.
Cette note de synthèse des travaux réalisés au laboratoire de Génétique, Aquaculture et Pathologie de la station IFREMER de La Tremblade, dans le cadre de l'étude du virus de type . herpès et de la mise au point des méthodes de diagnostic fait suite à la précédente note (fin mai 1996). Les résultats obtenus concernant les analyses protocolaires et hors protocoles, ainsi que les résultats expérimentaux déjà disponibles sont données et commentés en quatre points. Cette étude est soutenue par la Région Poitou-Charente et la Région Pays de Loire.
Tipo: Text
Palavras-chave: Pathologie; Virus; Herpès virus; Infection; Diagnostic; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00044/15503/12875.pdf

INFECTIONS IN THE BITE SITE AFTER ENVENOMING  BY SNAKES OF THE Bothrops GENUS
Provedor de dados: 79
Autores: JORGE,M. T.; RIBEIRO,L. A.
Envenomation caused by snakes of the Bothrops genus produces a lesion in the bite site and can result in extensive necrosis. The dead tissue can be secondarily infected by bacteria that come from the snake, and the bacteria can be inoculated at the moment of the bite. The bacteria that most commonly cause infection are the enterobacteria, mainly Morganella morganii, Proteus rettgeri, Enterobacter sp., and Escherichia coli. Group D streptococci including here Enterococcus sp. and the Bacteroides sp. are also involved. Based on a study of the sensibility of these bacteria, it has been suggested that this infection must be treated with chloramphenicol, as a sole antimicrobial agent, or with the combinations of benzylpenicillin or ampicillin with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snakebite; Bothrops; Infection; Antimicrobial agents; Treatment.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301997000200002

Impact of malnutrition on immunity and infection
Provedor de dados: 80
Autores: França,TGD; Ishikawa,LLW; Zorzella-Pezavento,SFG; Chiuso-Minicucci,F; da Cunha,MLRS; Sartori,A.
Malnutrition may be a consequence of energy deficit or micronutrient deficiency. It is considered the most relevant risk factor for illness and death, particularly in developing countries. In this review we described the magnitude of this problem, as well as its direct effect on the immune system and how it results in higher susceptibility to infections. A special emphasis was given to experimental models used to investigate the relationship between undernutrition and immunity. Malnutrition is obviously a challenge that must be addressed to health authorities and the scientific community.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malnutrition; Infection; Immunity; Experimental models.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000300003

Lack of correlation between rabies virus replication in the brain and antibody isotype profile in genetically modified mice
Provedor de dados: 80
Autores: Consales,C. A.; Pereira,C. A.; Passos,E. C.; Carrieri,M. L.; Galina,N. M. F.; Sant'Anna,O. A.
The relationship among the phenotypes resistance to infection, virus replication in the brain and isotype production was investigated in genetically modified High (H) or Low (L) antibody responder mouse lines. Although they express the same innate susceptibility to rabies infection, these lines differ as to different viral replication rates in the central nervous system and L mice showed a higher permissible state. After intramuscular infection with the Pasteur rabies strain (PV), the H-L interline differences on the earlier stage of virus replication were 1000 and 80 folds on days 5 and 6, respectively. The isotype profile in sera of the experimentally infected mice reflected an interline difference of 25 folds for IgG2a throughout the infection period,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabies; Infection; Isotypes; Nervous system.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300007

Bacterial biofilms with emphasis on coagulase-negative staphylococci
Provedor de dados: 80
Autores: Oliveira,A; Cunha,MLRS.
In addition to their capacity to attach to surfaces, various groups of microorganisms also produce an extracellular polymeric substance known as "slime". This slime forms a thin layer around cells known as biofilm. Thus, biofilm structure comprises bacterial cells and an extracellular polymeric substance. It also presents a defined architecture, providing the microorganisms with an excellent protective environment and favoring the exchange of genetic material between cells as well as intercellular communication. The ability to produce biofilm is observed in a large group of bacteria, including coagulase-negative staphylococci (CNS) which are the predominant microorganisms of normal skin flora and have been implicated as the causative agents of hospital...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coagulase-negative staphylococci; Biofilm; Slime; Infection; Microbiology.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400003

Nutritional, immunological and microbiological profiles of burn patients
Provedor de dados: 80
Autores: Barbosa,ASAA; Calvi,SA; Pereira,PCM.
A burn is a lesion on an organic tissue resultant from direct or indirect action of heat on the organism. The present study aimed to evaluate the nutritional, immunological and microbiological status of burn patients at the Bauru State Hospital, São Paulo state, Brazil, in 2007. Eight patients, aged more than 18 years and injured up to 24 hours, were evaluated at the moment of hospitalization and seven days later. All victims were males with a mean age of 38 years. On average, 17.5% of their body surfaces were burned and 50% of the patients were eutrophic. There were significant alterations in levels of erythrocytes, hemoglobin, hematocrit, total protein and albumin due to increased endothelial permeability, direct destruction of proteins in the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Burn; Nutrition; Infection; TNF-α; IL-6; Laboratory exams.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000400014

Effects of propolis from Brazil and Bulgaria on Salmonella serovars
Provedor de dados: 80
Autores: Orsi,R. O.; Sforcin,J. M.; Funari,S. R. C.; Fernandes-JR.,A.; Rodrigues,P.; Bankova,V.
Propolis shows biological properties such as antibacterial action. This bee product has a complex chemical composition, which depends on the local flora where it is produced. Salmonella serovars are responsible for human diseases that range from localized gastroenteritis to systemic infections. The aim of the present study was to investigate the susceptibility of Salmonella strains, isolated from food and infectious processes, to the antibacterial action of Brazilian and Bulgarian propolis, as well as to determine the behavior of these bacteria, according to the incubation period, in medium plus propolis. Dilution of ethanolic extract of propolis in agar was the used method. Brazilian and Bulgarian propolis showed an antibacterial action against all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propolis; Susceptibility profile; Salmonella; Food; Infection.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000400006

Intestinal microbiota and HIV-1 infection
Provedor de dados: 80
Autores: Trindade,E. B. S. M.; Souza,L. R.; Lopes,C. A. M.; Pereira,P. C. M.
The intestinal microbiota consists of a qualitatively and quantitatively diverse range of microorganisms dynamically interacting with the host. It is remarkably stable with regard to the presence of microorganisms and their roles which, however, can be altered due to pathological conditions, diet composition, gastrointestinal disturbances and/or drug ingestion. The present review aimed at contributing to the discussion about changes in the intestinal microbiota due to HIV-1 infection, focusing on the triad infection-microbiota-nutrition as factors that promote intestinal bacterial imbalance. Intestinal microbiota alterations can be due to the HIV-1 infection as a primary factor or the pharmacotherapy employed, or they can be one of the consequences of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intestinal microbiota; Nutrition; Infection; HIV-1.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000200003

Interaction between infection, nutrition and immunity in tropical medicine
Provedor de dados: 80
Autores: Pereira,P. C. M.
Host nutritional state has an important role in susceptibility to bacteria, parasites, and viral infections. Infection precipitates the appearance of signs and symptoms of nutrition deficiencies in the undernourished; this can aggravate infection evolution. Infection stimulates specific and non-specific host defense mechanisms; these are directly influenced by the nutritional state of micro- and macronutrients. Immune alterations, which are closely related to nutritional status, markedly contribute to a higher susceptibility to infectious agents and can also contribute to worsening nutritional state, forming a vicious cycle.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Nutrition; Immunity; Tropical diseases.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992003000200003

Susceptibility profile of Salmonella against the antibacterial activity of propolis produced in two regions of Brazil
Provedor de dados: 80
Autores: Orsi,R. O.; Sforcin,J. M.; Rall,V. L. M.; Funari,S. R. C.; Barbosa,Luciano; Fernandes,JR A.
Propolis antibiotic action has been widely investigated. This assay was carried out in order to observe the in vitro antibacterial activity of propolis against Salmonella enteritidis isolated from food and Salmonella typhimurium isolated from human infections. Propolis was collected by Apis mellifera in two regions of Brazil (Mossoró, Rio Grande do Norte State; and Urubici, Santa Catarina State). Both strains survival percentage decreased with time of incubation in Ethanolic Extracts of Propolis (EEP), demonstrating bactericidal effect after 24 hours. It was also observed that EEP from Mossoró was more effective than that from Urubici. The control of the propolis solvent - 70% ethanol - was less effective than EEP, showing only a bacteriostatic effect. We...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propolis; Susceptibility profile; Salmonella; Food; Infection.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992005000200003

Natural invertebrate hosts of iridoviruses (Iridoviridae)
Provedor de dados: 82
Autores: Williams,Trevor.
Invertebrate iridescent viruses (IIVs) are icosahedral DNA viruses that infect invertebrates, mainly insects and terrestrial isopods, in damp and aquatic habitats. Exhaustive searches of databases resulted in the identification of 79 articles reporting 108 invertebrate species naturally infected by confirmed or putative iridoviruses. Of these, 103 (95%) were arthropods and the remainder were molluscs, an annelid worm and a nematode. Nine species were from marine habitats. Of the 99 non-marine species, 49 were from terrestrial habitats and 50 were aquatic, especially the aquatic stages of Diptera (44 species). The abundance of records from species of Aedes,Ochlerotatus and Psorophora contrasts markedly with a paucity of records from species of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Natural host; Location; Particle size; Prevalence; Virus characterization data.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000600001

Effect of anesthetic, tag size, and surgeon experience on postsurgical recovering after implantation of electronic tags in a neotropical fish: Prochilodus lineatus (Valenciennes, 1837) (Characiformes: Prochilodontidae)
Provedor de dados: 83
Autores: Lopes,João M.; Alves,Carlos B. M.; Silva,Fernanda O.; Bedore,Alessandra G.; Pompeu,Paulo S.
ABSTRACT Implantation of telemetry transmitters in fish can be affected by different parameters. This study aimed to evaluate the effect of type of anesthetic, tag size, and surgeon experience on surgical and postsurgical wound healing in the neotropical fish Prochilodus lineatus . In total, eighty fish were surgically implanted with telemetry transmitters and forty fish were kept as controls. Forty fish were implanted with a small tag and other forty were implanted with a large tag. Similarly, forty fish were anesthetized with eugenol and forty fish were anesthetized by electroanesthesia, and forty surgeries were performed by an expert surgeon and forty surgeries were performed by novice surgeons. At the end of the experimental period seventeen (21.3%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Incision; Infection; Postsurgical complications; Telemetry; Wound Healing.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300209

Pathological Observations in Trypanosoma evansi Infected Yankasa Sheep
Provedor de dados: 19
Autores: Audu, P. A.; Esievo, K. A. N.; Mohammed, G.; Ajanusi, O. J.; Ibrahim, N. D. G.
Palavras-chave: Trypanosoma evansi; Yankasa sheep; Infection; Pathology.
Ano: 1999
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/318

The Role of Carbohydrates in Infection Strategies of Enteric Pathogens
Provedor de dados: 19
Autores: Kato, Kentaro; Ishiwa, Akiko; 加藤, 健太郎.
Enteric pathogens cause considerable public health concerns worldwide including tropical regions. Here, we review the roles of carbohydrates in the infection strategies of various enteric pathogens including viruses, bacteria and protozoa, which infect the epithelial lining of the human and animal intestine. At host cell entry, enteric viruses, including norovirus, recognize mainly histo-blood group antigens. At the initial step of bacterial infections, carbohydrates also function as receptors for attachment. Here, we describe the function of carbohydrates in infection by Salmonella enterica and several bacterial species that produce a variety of fimbrial adhesions. During invasion by enteropathogenic protozoa, apicomplexan parasites utilize sialic acids...
Palavras-chave: Bacteria; Carbohydrate; Enteric pathogen; Infection; Protozoa; Virus.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4299

Abortion and its probable cause in gilts experimentally infected with Trypanosoma brucei
Provedor de dados: 19
Autores: Allam, L.; Ogwu, D.; Agbede, R.I.S; Sackey, A.K.B.
Palavras-chave: Trypanosoma brucei; Gilts; Infection; Abortion.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4094

Transcriptional analyses of Trypanosoma brucei gambiense from infected mice and in vitro culture
Provedor de dados: 19
Autores: Kuboki, Noritaka; Kibe, Michael K; Thekisoe, Oriel M. M.; Sugimoto, Chihiro; Inoue, Noboru.
With the hypothesis that African trypanosomes could have in vivo specific genes for adaptation to host’s environment, the present study was conducted by using suppressive subtractive hybridization (SSH) technique to seek the highly expressed genes especially in host. A total of 328 clones from the in vivo SSH library and that of 160 clones from the in vitro SSH library were analyzed in order to determine their expression levels, but none of the above-mentioned genes showed differential expression. This indicates that no trypanosome genes could be differentially expressed either the in vivo or in vitro propagated trypanosomes. Alternatively, there might be limitation for detecting specifically expressed genes in African trypanosomes using this method,...
Palavras-chave: Differential expression; Infection; Trypanosoma brucei.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1052

Socioeconomic Determinants of Disease Transmission in Cambodia
Provedor de dados: 31
Autores: Deolalikar,   Anil B.; Laxminarayan,   Ramanan.
The process of acquiring an infection has two components: first, exposure through proximity to another infected individual, and second, transmission of the disease. Earlier studies of the socioeconomic factors that affect the probability of acquiring an illness assume uniform exposure to infected individuals and may therefore result in biased estimates. This paper develops an empirical model, consistent with epidemiological models of spread of infections, to estimate the impact of socioeconomic variables on the extent of disease transmission within villages in Cambodia. Data from the 1997 Cambodia Socioeconomic Survey are used in this analysis.
Tipo: Working or Discussion Paper
Palavras-chave: Disease transmission; Sanitation; Infection; Public health; Health Economics and Policy; C1; I1; O1.
Ano: 2000
URL: http://purl.umn.edu/10695

Host-parasite interaction and impact of mite infection on mosquito population
Provedor de dados: 92
Autores: Atwa,Atwa A.; Bilgrami,Anwar L.; Al-Saggaf,Ahmad I.M.
ABSTRACT During the present study, the host-parasite relationship between mosquitoes and parasitic mites was investigated. The 8954 individuals of male and female mosquitoes belonging to 26 genera: seven each of Aedes and Culex, six of Anopheles and one each of Toxorhynchites, Coquillettidia and Uranotaenia were collected from 200 sites. The male and female mosquitoes were collected from the State of Uttar Pradesh, located at 26.8500° N, 80.9100° E in North India by deploying Carbon dioxide-baited and gravid traps. The intensity of mite's infection, type and number of mites attached to mosquitoes, mite's preference for body parts and host sexes were the parameters used to determine host-parasite relationship. Eight species of mites: Arrenurus acuminatus,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mosquito; Mites; Host; Parasite; Infection; Biocontrol.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000200101

Adhesion of uredospores of Phakopsora pachyrhizi on soybean seeds and their viability during storage
Provedor de dados: 95
Autores: Magnani,Elisandra Batista Zambenedetti; Mendonça,Elisabeth Aparecida Furtado de; Albuquerque,Maria Cristina de Figueiredo e.
To study adhesion and viability of uredospores of the fungus Phakopsora pachyrhizi on soybean seeds during storage, suspension tests of those uredospores were carried out by washing seeds at each 30 days interval. Furthermore, germination and inoculation tests of uredospores on soybean plants were performed with uredospores collected from seeds of two soybean production areas, located in the municipalities "Chapada dos Guimarães" and "Tangará da Serra", State of Mato Grosso, Brazil. High levels of uredospores infestation were detected before storage [249.31 and 85.18 uredospores/100 seeds (U/100)] on seeds collected in both localities, respectively. After 30 days storage, these figures were 46.12 and 122.5 U/100; at 60 days were 14.62 and 26.62 U/100; and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soybean rust; Spores; Germination; Infection.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000200006

Serologic survey for ophidian paramyxovirus in captive snakes
Provedor de dados: 195
Autores: Paiva, Maria Isabel Sousa; Araújo Junior, João Pessoa; Barraviera, Benedito.
The captivity maintenance of snakes is a challenge for the breeders, especially in diseases control. The most common diseases in serpentarium and private collections are the parasites, gastrointestinal problems and respiratory viruses. The biggest concern is the ophidian paramyxovirosis caused by ophidian paramyxovirus (OPMV), which primarily affects the respiratory system and may also involve the nervous system. Often fatal, it was described in Colubridae, Elapidae, Viperidae, Boidae and Pitonidae. This virus is transmitted by aerosols, respiratory secretions, contaminated utensils, ectoparasites such as ticks and digestive excreta. There is no specific treatment or vaccine available. The diagnostic methods are: virus isolation in cell culture; electron...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snakes; Ophidian paramyxovirus; Infection; ELISA; Prophylaxis serpentes; Paramixovirose ofídica; Infecção; ELISA; Profilaxia.
Ano: 2016
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/31033

Severe phlegmonous cystitis: case report
Provedor de dados: 195
Autores: Nakamuta, Bruna Higa; Kolber, Milton; Nagasse, Nathalie.
A case of severe phlegmonous cystitis or purulent cystitis due to bacterial infection is reported in a 9-year-old female dog of the Dachshund breed, presenting dysuria about a week ago. Biochemical examinations were performed, besides calculation analysis and abdominal ultrasound examination. The biochemistry exams did not present alterations. Calculation analysis showed calcium carbonate/urate. The diagnosis was confirmed by ultrasonography in which a heterogeneous, hypoechogenic and hyperechogenic aspect was seen in the caudal region of the bladder. The animal underwent surgery, in which a mass adhered to the bladder was removed and sent for histological examination, resulting in loss of epithelial lining and severe leukocyte infiltration. This report...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cystitis; Diagnosis; Dog; Infection; Severe; Ultrasonography; Cão; Cistite; Diagnóstico; Infecção; Severa; Ultrassonografia.
Ano: 2019
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37916

Greenhouse screening for MDMV resistance of corn
Provedor de dados: 106
Autores: Wichai Kositratana; Suchada Kutium; Thira Sutabutra; Kitti Choonhawongse.
1 ill., 1 table
Palavras-chave: Corn; Maize; Maize dwarf mosaic virus; Variety trials; Selection; Disease resistance; Infection; ข้าวโพด; โรคไวรัสเอมดีเอมวี.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3964

Red leaf spot of sorghum caused by Curvularia clavata Jain, a new disease in Thailand
Provedor de dados: 106
Autores: Nuchnart Jonglaekha; Jinantana Kongjit.
3 tables
Palavras-chave: Sorghum; Red leaf spot; Curvularia clavata; Infection; Varieties; Disease resistance; ข้าวฟ่าง; โรคใบจุดสีแดง; เชื้อรา.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4056

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
Autores: Sujin Jinahyon; Sutat Sriwatanapongse; Bunpote Tasanasuwan; Weerasak Duangchantra; Tawatchai Prasatsrisupab; Suvit Panichying; Sansern Jampatong; Vichien Sakulsom.
14 ill., 18 tables
Palavras-chave: Corn; Maize; Plant breeding; Yield trials; Yields; Quality; Variety trials; Agronomic characters; Downy mildew; Infection; ข้าวโพด; การปรับปรุงพันธุ์; การทดสอบผลผลิต; ผลผลิต; คุณภาพ.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3950

Corn downy mildew project
Provedor de dados: 106
Autores: Narong Singburaudom; Wong Bunserbskul; Bonman, J.M.; Renfro, B.L.
5 tables
Palavras-chave: Corn; Maize; Downy mildew; Peronosclerospora sorghi; Infection; Epidemiology; Disease resistance; Varieties; Yields; ข้าวโพด; โรคราน้ำค้าง; การปรับปรุงพันธุ์; ความต้านทานโรค.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4018

Annual research report on corn disease in 1981
Provedor de dados: 106
Autores: Somkiat Titatarn; Diloke Unchalisangkas; Weera Chamkrachang; Niyom Chew-Chin.
Palavras-chave: Corn; Maize; Downy mildew; Infection; Variety trials; ข้าวโพด; โรคราน้ำค้าง.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4053

Grain mold disease of Sorghum bicolor (L.) Moench., caused by Fusarium moniliforme Sheldon and Curvularia lunata (Wakker) Boedijn.
Provedor de dados: 106
Autores: Suparb Teenakul; Thammasak Sommartya; Udom Pupipat.
3 tables
Palavras-chave: Sorghum; Sorghum bicolor; Grain mold disease; Fusarium moniliforme; Curvularia lunata; Pathogenicity; Infection; ข้าวฟ่าง; โรคพืช; โรคราช่อข้าวฟ่าง.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4146

Corn downy mildew program
Provedor de dados: 106
Autores: Renfro, B.L.; Narong Singburaudom; Singh, Jaswant; Bhat, S. Shankara.
13 tables
Palavras-chave: Corn; Maize; Downy mildew; Peronosclerospora sorghi; Varieties; Disease resistance; Infection; Plant density; Nitrogen fertilizers; Phosphate fertilizers; Water stress; Yields; ข้าวโพด; โรคราน้ำค้าง.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3933

International corn downy mildew nursery
Provedor de dados: 106
Autores: Somkiat Titatarn.
1 table
Palavras-chave: Corn; Maize; Downy mildew; Varieties; Infection; ข้าวโพด; โรคราน้ำค้าง.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4097

Metacercariae of Austrodiplostomum compactum (Lutz, 1928) (Trematoda, Diplostomidae) infecting the eyes of Plagioscion squamosissimus (Heckel, 1840) (Perciformes, Scienidae) from Lake Catalão, Amazonas, Brazil
Provedor de dados: 36
Autores: ALBUQUERQUE,Natália Brandão de; MOREY,Germán Augusto Murrieta; MORAIS,Aprigio Mota; MALTA,José Celso de Oliveira.
ABSTRACT Austrodiplostomum compactum is a digenetic trematode whith metacercariae that occur in the eyes of a wide variety of fish species. In Brazil, A. compactum metacercariae have been reported in many fish species, but there are only a few studies in the Amazon region. Due to the lack of information in the Amazon, the aim of this study was to report the occurrence of A. compactum metacercariae in the eyes of 15 specimens of Plagioscion squamosissimus from the Lake Catalão, in Amazonas, Brazil. Fishes were collected using gill nets placed randomly in the lake, euthanized in a field laboratory, and had their eyes dissected and examined under a stereomicroscope. A total of 801 metacercariae were registered infecting the eyes of the hosts with a parasitic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corvina fish; Digenea; Parasites; Infection.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200141

ECOLOGICAL ASPECTS OF THE PARASITES IN Cichlasoma bimaculatum (CICHLIDAE), ORNAMENTAL FISH FROM THE BRAZILIAN AMAZON
Provedor de dados: 37
Autores: TAVARES-DIAS,Marcos; ALVES GONÇALVES,Raissa; BRITO OLIVEIRA,Marcos Sidney; RIGÔR NEVES,Ligia.
ABSTRACT This study investigated the parasitic fauna of Cichlasoma bimaculatum of a tributary from the Amazon River system, northern Brazil. The prevalence of infection was 94.6 % and, in total, 428 267 parasites, such as Ichthyophthirius multifiliis, Piscinoodinium pillulare (Protozoa), Gussevia arilla (Monogenoidea), Posthodiplostomum sp. (Digenea) and Procamallanus (Spirocamallanus) inopinatus (Nematoda) were collected. However, the dominance was mainly of I. multifiliis, while P. (S.) inopinatus was the parasite species with the lower levels of prevalence and abundance of infection. These parasite species showed an aggregated dispersion pattern. The parasitic fauna was characterized by the presence of few species of parasites with high prevalence and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aggregation; Endoparasites; Freshwater fish; Infection.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2017000200006

Soybean protein concentrate in Pacific white shrimp reared in bioflocs: effect on health and vibrio challenge
Provedor de dados: 2
Autores: Schleder, Delano Dias; Jatobá, Adolfo; Silva, Bruno Corrêa da; Ferro, Daniel Paulo Damin; Seiffert, Walter Quadros; Vieira, Felipe do Nascimento.
Litopenaeus vannamei shrimp were reared in a bioflocs system and fed different levels of soybean protein concentrate as a replacement for fishmeal, and both immunological parameters of this marine shrimp and its resistance to Vibrio sp. infection (CPQBA 378-12 DRM01) were evaluated. Four different diets were formulated with 0, 33, 66 and 100 % of soybean protein concentrate as a substitute for fishmeal. Shrimp were reared in a biofloc system in twelve 800 L tanks (250 shrimp m-3) maintained at constant aeration and temperature. After 42 days, 36 animals (14.21 ± 0.89 g) per treatment were challenged with Vibrio sp. (1 x 105 CFU mL-1 – LD10), and hemolymph was collected before and after challenge to perform immunological assays (agglutination titer,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Immune response; Infection; Plant protein; Litopenaeus vannamei.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42570

Austrodiplostomum compactum (Lutz, 1928) (Digenea, Diplostomidae) in the eyes of fishes from Paraná river, Brazil - doi: 10.4025/actascibiolsci.v34i2.9337
Provedor de dados: 3
Autores: Santos, Rosemeire de Souza; Universidade do Oeste Paulista  - UNOESTE; Marchiori, Natalia; Universidade Federal de Santa Catarina - UFSC; Santarem, Vamilton Alvares; Universidade do Oeste Paulista - UNOESTE; Takahashi, Haroldo Kazuyuki; Universidade do Oeste Paulista - UNOESTE; Mourino, José Luis Pedreira; Universidade Federal de Santa Catarina - UFSC; Martins, Maurício Laterça; Universidade Federal de Santa Catarina - UFSC.
Parasitological indexes of Austrodiplostomum compactum (Digenea, Diplostomidae) in fishes from the Paraná River, Presidente Epitácio region, state of São Paulo, Brazil, and their relationship with climate and water quality are evaluated. Fifty-one specimens of Plagioscion squamosissimus, 39 Geophagus surinamensis, 27 Hoplias malabaricus and 23 Cichla sp. were collected between June 2007 and June 2008. Water quality and rainfall indexes were measured monthly. P. squamosissimus had the highest parasite rate, with 98% total prevalence, intensity of infection varying between 1 and 255 and parasite mean abundance totaling 40.5 ± 9.9. H. malabaricus had the next parasite rate, with 66.6% total prevalence, parasite intensity between 2 and 184 and mean abundance...
Palavras-chave: Fish; Plagioscion squamosissimus; Geophagus surinamensis; Hoplias malabaricus; Cichla; Diplostomum; Infection.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9337

Effectiveness of both synthetic compounds and biological extracts against powdery mildew (Blumeria graminis f. sp. tritici) on winter wheat
Provedor de dados: 115
Autores: Věchet,Lubomír; Šerá,Božena.
The objective of this study was to evaluate the effectiveness of foliar application of various synthetic compounds and biological extracts against powdery mildew on wheat. Seed coats of winter wheat were treated by synthetical compounds (benzothiadiazole, salicylic acid, and glycine betaine) or by the extracts from plants (oak, giant knotweed, curcuma, and ginger). Then the seeds were planted using small-field experiments with powdery mildew infection (repetitions over a two-year period; experimental field in Ruzyne, Prague). Leaf area infection was measured and the Cumulative Proportion of Leaf Area Diseased (CPLAD) was calculated. Data were analysed using ANOVA (Tukey test, p≤0.05). Effectiveness of preparations varied 30 % to 72 % in 2008, and 25 % to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotechnology; Curcuma; Giant knotweed; Ginger; Infection; Oak.
Ano: 2015
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000100006

Urotrema macrotestis and Urotrema scabridum (Digenea: Urotrematidae) parasitizing bats (Mammalia: Chiroptera) in Brazil
Provedor de dados: 42
Autores: MELLO,ÉRICA M. DE; RABELO,ÉLIDA M.L.; SILVA,REINALDO J. DA.
Urotrema scabridum Braun 1900 and Urotrema macrotestis Mané-Garzón and Telias 1965 are reported from the small intestine of Eumops glaucinus (Wagner, 1843). The species were differentiated by the body width, the size and position of acetabulum, the size of testis, the caecal termination, and the distribution of vitellarium. The present study expands the distribution and the hosts of both species in Minas Gerais State and reports U. macrotestis parasitizing bats for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eumops glaucinus; Infection; Taxonomy; Trematoda.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100616

Myenteric neuronal plasticity induced by Toxoplasma gondii (genotype III) on the duodenum of rats
Provedor de dados: 42
Autores: Papazian-Cabanas,Rodrigo M.; Araújo,Eduardo J.A.; Silva,Aristeu V. da; Sant'Ana,Débora M.G.
The effects of acute and chronic infection caused by Toxoplasma gondii on duodenal myenteric neurons were analyzed. Eighteen rats were assigned into four groups: Acute Control Group (ACG, n=4); Acute Experimental Group (AEG, n=4); Chronic Control Group (CCG, n=5); and Chronic Experimental Group (CEG, n=5). Rats from the AEG and CEG were inoculated orally with 105 genotype III (BTU-II strain) tachyzoites of T. gondii isolated from a dog with neurological signs. Acute groups were killed after 24 hours after the inoculation and the chronic groups after 30 days. Whole-mount from the duodenum were stained with Giemsa. The population density of myenteric neurons, as well the body cell, nuclear and cytoplasmic area were analyzed. Both acute and chronic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enteric nervous system; Infection; Parasite; Toxoplasmosis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300016

B-1 cell: the precursor of a novel mononuclear phagocyte with immuno-regulatory properties
Provedor de dados: 42
Autores: Lopes,José Daniel; Mariano,Mario.
Characterization of the origin, properties, functions and fate of cells is a fundamental task for the understanding of physiological and pathological phenomena. Despite the bulk of knowledge concerning the diverse characteristics of mammalian cells, some of them, such as B-1 cells, are still poorly understood. Here we report the results obtained in our laboratory on these cells in the last 10 years. After showing that B-1 cells could be cultured and amplified in vitro, a series of experiments were performed with these cells. They showed that B1 cells reside mostly in the peritoneal and pleural cavities, migrate to distant inflammatory foci, coalesce to form giant cells and participate in granuloma formation, both in vitro and in vivo. They are also able to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: B-1 cells; IL-10; Inflammation; Infection; Neoplasia; BALB/Xid mice.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300013

Haematophagous arthropod saliva and host defense system: a tale of tear and blood
Provedor de dados: 42
Autores: Andrade,Bruno B.; Teixeira,Clarissa R.; Barral,Aldina; Barral-Netto,Manoel.
The saliva from blood-feeding arthropod vectors is enriched with molecules that display diverse functions that mediate a successful blood meal. They function not only as weapons against host's haemostatic, inflammatory and immune responses but also as important tools to pathogen establishment. Parasites, virus and bacteria taking advantage of vectors' armament have adapted to facilitate their entry in the host. Today, many salivary molecules have been identified and characterized as new targets to the development of future vaccines. Here we focus on current information on vector's saliva and the molecules responsible to modify host's hemostasis and immune response, also regarding their role in disease transmission.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saliva; Bites; Hemostasis; Host; Vector; Infection.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000400008

Morphological and hematological studies ofTrypanosoma spp. infecting ornamental armored catfish from Guamá River-PA, Brazil
Provedor de dados: 42
Autores: Fujimoto,Rodrigo Y.; Neves,Mikaelle S.; Santos,Rudã F.B.; Souza,Natalino C.; Couto,Márcia V.S. do; Lopes,Josiane N.S.; Diniz,Daniel G.; Eiras,Jorge C.
A total of 281 specimens of freshwater armored ornamental fish species (Leporacanthicus galaxias, Lasiancistrus saetiger,Cochliodonsp., Hypostomussp.,Pseudacanthicus spinosus, Ancistrussp. andRineloricariacf. lanceolata) were captured at the hydrological basin of Guamá River, Pará, Brazil. The infection by Trypanosoma spp. was inspected. The morphological and morphometric characterization of the parasites and the hematological parameters were determined. Leporacanthicus galaxias andPseudacanthicus spinosus presented 100% infection prevalence, and the other species showed a variable prevalence of infection. The parasites showed clearly different morphotypes and dimensions, and probably belong to different species. The hematological response to the infection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater fish; Hematological parameters; Infection; Trypanosoma spp.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000301149

Correlation between infection rate of triatominies and Chagas Disease in Southwest of Bahia, Brazil: a warning sign?
Provedor de dados: 42
Autores: SILVEIRA,ELIEZER A. DA; RIBEIRO,ISRAEL S.; AMORIM,MIGUEL S.; ROCHA,DALVA V.; COUTINHO,HELDER S.; FREITAS,LEANDRO M. DE; TOMAZI,LAIZE; SILVA,ROBSON A.A. DA.
ABSTRACT Chagas disease, caused by the Trypanosoma cruzi, has a wide distribution in South America, and its main method of control is the elimination of triatomines. It is presented here the geographic distribution and the rate of natural infection by T. cruzi of triatomines collected and evaluated from 2008 to 2013 in southwest of Bahia. Triatomines were captured in the intradomiciliary and peridomiciliary areas of five cities located in the southwest of Bahia state, identified, and analyzed for the presence of trypanosomatids in their feces. During the study period the number of patients suspected for acute Chagas disease was recovered from the Notifiable Diseases Information System (SINAN). 8966 triatomines were captured and identified as belonging to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Chagas disease; Trypanosoma cruzi; Vector.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501941

Detection of Mycobacterium avium subsp. paratuberculosis in a cattle/pudu interface
Provedor de dados: 45
Autores: Salgado,M.; Aleuy,O. A.; Sevilla,I. A.; Troncoso,E.
ABSTRACTMycobacterium avium subsp. paratuberculosis (Map) is the etiological agent of paratuberculosis. In Chile, information about Map isolation from both domestic ruminant and wildlife species has been accumulating, but it has to be extended to other species. The present study focuses specifically on one wild grazing species, the pudu (Pudu puda), one of the less known South American deer considered an endangered species that shares pastures with cattle in southern Chile, where the greatest part of the country's dairy cattle population is located. Convenient samples from 3 pudus were collected from one dairy farm where Map infection had previously been confirmed in cattle. All three pudus shed the bacterium in feces and the isolates are the same type of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paratuberculosis; Map; Wildlife; Infection; Spillover.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000501205

Serum levels of proteins and acute-phase proteins in captive emus ( Dromaius novaehllandieae ) of different ages
Provedor de dados: 45
Autores: Filippo,P.A. Di; Viana,I.S.; Almeida,A.J.; Graça,F.A.S.; Rodrigues,A.B.F.; Nogueira,A.F.S.
ABSTRACT Protein electrophoresis is a relatively simple technique that allows separating serum protein fractions, and provides important information in the investigation and diagnosis of several diseases. This study determined the levels of acute-phase proteins in the serum of healthy, captive emus (Dromaius novaehollandiae). Animals were divided into two groups (n=11 in each) based on age, with 1-year-old and 4-year-old emus. Acute-phase proteins were separated by SDS-PAGE. Ceruloplasmin, transferrin, albumin, haptoglobin, acidic glycoprotein, IgA, and IgG were detected in the serum of all animals. Protein profiles varied significantly with age (P&lt;0.05). Individuals in the 4-year-old emus group had higher values of ceruloplasmin, transferrin, albumin,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute-phase response; Polyacrylamide gel electrophoresis; Infection; Emus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200405

Prevalence of Hepatozoon spp. (Apicomplexa, Hepatozoidae) among recently captured Brazilian snakes
Provedor de dados: 45
Autores: O'Dwyer,L.H.; Moço,T.C.; Barrella,T.H.; Vilela,F.C.; Silva,R.J.
The goal of this study was to determine the prevalence of Hepatozoon spp. infection in recently captured snakes from Botucatu, São Paulo State, Brazil. Blood was collected from all snakes by ventral tail venipuncture. Blood smears were air dried, fixed with methanol, and stained with 10% Giemsa solution. The slides were microscopically examined for detection of hemoparasites by light microscopy at 250x magnification. A total of 238 snakes from 23 species were examined, of which 135 (56.7%) were venomous and 103 (43.3%) non-venomous snakes. The more numerous venomous species sampled were Crotalus durissus terrificus (n=108) and Bothrops jararaca (n=17) and non-venomous snakes were Oxyrhopus guibei (n=35), Boa constrictor amarali (n=18), and Waglerophis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snake; Hepatozoon; Prevalence; Infection.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300010

Infection imaging with radiopharmaceuticals in the 21st century
Provedor de dados: 52
Autores: Das,Satya S.; Hall,Anne V.; Wareham,David W.; Britton,Keith E.
Infection continues to be a major cause of morbidity and mortality worldwide. Nuclear medicine has an important role in aiding the diagnosis of particularly deep-seated infections such as abscesses, osteomyelitis, septic arthritis, endocarditis, and infections of prosthetic devices. Established techniques such as radiolabelled leucocytes are sensitive and specific for inflammation but do not distinguish between infective and non-infective inflammation. The challenge for Nuclear medicine in infection imaging in the 21st century is to build on the recent trend towards the development of more infection specific radiopharmaceuticals, such as radiolabelled anti-infectives (e.g. 99mTc- ciprofloxacin). In addition to aiding early diagnosis of infection, through...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radiopharmaceuticals; Imaging; Infection; Inflammation; Radiolabelled anti-infectives; 99mTc- ciprofloxacin.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000500005

Radionuclide imaging of infection: what the future holds
Provedor de dados: 52
Autores: Palestro,Christopher J.
Nuclear Medicine plays an important role in the evaluation of patients suspected of harboring infection. Gallium imaging is especially useful for opportunistic infections and spinal osteomyelitis. In vitro labeled leukocyte imaging is the current radionuclide gold standard for imaging most infections, in immunocompetent patients, including cardiovascular, postoperative, and musculoskeletal infections (except spinal osteomyelitis). Several in-vivo leukocyte labeling methods have been investigated, but none are widely used. Results obtained with radiolabeled antibiotics have been disappointing. Data on FDG are still emerging, but this agent appears to be especially valuable in fever of unknown origin, spinal osteomyelitis, vasculitis and sarcoidosis. It is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Labeled leukocytes; Gallium; FDG; PET.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700002

Nanoparticle-based drug delivery systems: promising approaches against infections
Provedor de dados: 52
Autores: Ranghar,Shweta; Sirohi,Parul; Verma,Pritam; Agarwal,Vishnu.
Despite the fact that many new drugs and technologies have been developed to combat the infectious diseases, these have continued to be global health challenges. The use of conventional antimicrobial agents against these infections is always associated with problems such as the development of multiple drug resistance and adverse side effects. In addition, the inefficient traditional drug delivery system results in inadequate therapeutic index, low bioavailability of drugs and many other limitations. In this regard, antimicrobial nanoparticles and nanosized drug delivery carriers have emerged as potent effective agents against the infections. Nanoparticles have unique properties owing to their ultra small and controllable size such as high surface area,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial Nanoparticles; Drug Resistance; Drug Delivery System; Infection; Metal and Metal Oxide.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000200008

Technetium-99m ceftizoxime kit preparation
Provedor de dados: 52
Autores: Diniz,Simone Odília Fernandes; Siqueira,Cristiano Ferrari; Nelson,David Lee; Martin-Comin,Josep; Cardoso,Valbert Nascimento.
The aim of this work was to prepare a kit of 99mTc-ceftizoxime (99mTc-CFT), with stability and biological activity preserved, able to identify a septic focus (E. coli) in the experimental infection model in rats. The preparation of the CFT kit involved the use of lyophilized solutions containing the antibiotic ceftizoxime and the sodium dithionite reducing agent (6.0 mg/mL). After lyophilization, the kit was reconstituted with 1.0 mL of sodium 99mTc-pertechnetate solution (Na99mTcO4-) with an activity of 370 MBq. The solution was boiled for 10 min and filtered through a cellulose ester filter. The labeling efficiency was on the order of 92%, remaining stable for six hours and the kit remained stable for two months. The biological activity of the 99mTc-CFT...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tc-99m Ceftizoxime; Infection; Gamma scintigraphy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700014

Radionuclide imaging of the painful joint replacement: past, present and future
Provedor de dados: 52
Autores: Palestro,Christopher.
Differentiating aseptic loosening from infection as the cause of prosthetic joint failure is difficult because both entities are similar, clinically and histopathologically. Aseptic loosening frequently results from an immune reaction to the prosthesis. There is inflammation with an influx of histiocytes, giant cells, lymphocytes, and plasma cells. Proinflammatory cytokines and proteolytic enzymes are secreted, causing osteolysis and loosening. These same events occur in infection except that neutrophils, rarely present in aseptic loosening, are invariably present in infection. Clinical signs and symptoms, laboratory tests, x-rays and joint aspiration are insensitive, nonspecific or both. Artifacts produced by the metallic hardware hamper cross-sectional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radionuclide imaging; Painful joint replacement; Infection.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000500003

Histological Observation and Expression Patterns of antimicrobial peptides during Fungal Infection in Musca domestica (Diptera: Muscidae) Larvae
Provedor de dados: 52
Autores: Jiangfan,Xiu; Tao,Wang; Yu,Wang; Jianwei,Wu; Guo,Guo; Yingchun,Zhang; Xiaoli,Shang.
ABSTRACT Housefly, Musca domestica, has a complicated immune system. However, its underlying operating mechanism remains elusive. Candida albicans is a major pathogen affecting humans by causing deep infection fungous disease, but it is non-symbiotic in houseflies. To investigate the C. albicans infection process in housefly, the changes in morphological and histological and expression patterns of antimicrobial peptide were monitored to indicate the insect's response to fungal infection. The results showed that scattered brown spots were comprising melanized encapsulation and encapsulated fungal cells were initially observed at the inner side of larvae's body wall 3 h post-infection (PI). Between 6 and 36 h PI, the whole body of larvae was densely covered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musca domestica; Larvae; Candida albicans; Infection; Innate immunity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100340

A meta-analysis of efﬁcacy and safety of doripenem for treating bacterial infections
Provedor de dados: 55
Autores: Qu,Xiao-Yu; Hu,Ting-Ting; Zhou,Wei.
Objective: The aim of this article is to compare the efﬁcacy and safety of doripenem for bacterial infections.  Methods: We included six randomized clinical trials identiﬁed from PubMed and Embase up to July 31, 2014. The included trials compared efﬁcacy and safety of doripenem for complicated intra-abdominal infections, complicated urinary tract infection, nosocomial pneumonia, and acute biliary tract infection. The meta-analysis was carried on by the statistical software of Review Manager, version 5.2.  Results: Compared with empirical antimicrobial agents on overall treatment efﬁcacy, doripenem was associated with similar clinical and microbiological treatment success rates (for the clinical evaluable population, odds ratio [OR] = 1.26, 95% conﬁdence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Doripenem Meta-analysis Efﬁcacy; Safety; Infection.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000200156

Infection and colonization by Staphylococcus aureus in a high risk nursery of a Brazilian teaching hospital
Provedor de dados: 55
Autores: Silva,Helisângela de Almeida; Abdallah,Vânia O. Steffen; Carneiro,Cláudia Lúcia; Gontijo Filho,Paulo P.
Neonates are susceptible to nosocomial infections due to immunological immaturity, prolonged hospital stay and the use of invasive procedures. We evaluated the incidence of infections and the prevalence of colonization by MRSA (Methicillin-resistant Staphylococcus aureus) and MSSA (Methilin-susceptible Staphylococcus aureus), as well as colonization risk factors. Staphylococcal infections were observed by analyzing medical records in the HICS (Hospital Infection Control Service) and the HRN (High Risk Nursery). Additionally, four inquiries concerning colonization prevalence were made for S. aureus, from January/2000 to December/2002. Clinical specimens from the nostrils, mouth and anus were cultivated in mannitol-salt agar plates and identification was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Neonates; Infection; Colonization and risk factors.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000600005

Therapeutic impact of CT-guided percutaneous catheter drainage in treatment of deep tissue abscesses
Provedor de dados: 55
Autores: Asai,Nobuhiro; Ohkuni,Yoshihiro; Yamazaki,Ikuo; Kaneko,Norihiro; Aoshima,Masahiro; Kawamura,Yasutaka.
Combination therapy of CT-guided percutaneous drainage and antibiotics is the first-line treatment for abscesses. Its effectiveness has been demonstrated. However, the therapeutic impact of this procedure for infection treatment has never been reported. We retrospectively analyzed all 47 patients who received CT-guided percutaneous drainage for infection treatment. Patients' characteristics, pathogens isolated, antibiotics administered, technical and clinical outcomes, complications related to this procedure and therapeutic impacts were investigated. Patients were 26 males and 21 females. The mean age was 63.5 years (±18.7). The diseases targeted were 19 retroperitoneal abscesses, 18 intraabdominal abscesses, three pelvic abscesses, and seven others. As...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: CT-guided percutaneous drainage; Infection; Abscess.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400015

Magnetic bead technology for viral RNA extraction from serum in blood bank screening
Provedor de dados: 55
Autores: Albertoni,Guilherme Ambrozio; Arnoni,Carine Prisco; Araujo,Patricia Regina Barboza; Andrade,Sheila Siqueira; Carvalho,Fabrício Oliveira; Girão,Manoel João Batista Castello; Schor,Nestor; Barreto,José Augusto.
Nucleic acid amplification testing (NAT) was recently recommended by Brazilian legislation and has been implemented at some blood banks in the city of São Paulo, Brazil, in an attempt to reduce blood-born transmission of human immunodeficiency virus (HIV) and hepatitis C virus. OBJECTIVE: Manual magnetic particle-based extraction methods for HIV and HCV viral nucleic acids were evaluated in combination with detection by reverse transcriptase - polymerase chain reaction (RT-PCR) one-step. METHODS: Blood donor samples were collected from January 2010 to September 2010, and minipools of them were submitted to testing. ELISA was used for the analysis of anti-HCV/HIV antibodies. Detection and amplification of viral RNA was performed using real-time PCR....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HCV; HIV; Infection; Reverse transcriptase polymerase chain reaction; Blood banks.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000600008

Efficacy of cytology for the diagnosis of Chlamydia trachomatis in pregnant women
Provedor de dados: 55
Autores: Cornetta,Maria da Conceição de Mesquita; Gonçalves,Ana Katherine da Silveira; Bertini,Anna Maria.
This study evaluated the effectiveness of Papanicolaou staining for the initial diagnosis of Chlamydial infection in pregnant women. A hundred thirteen patients were examined with a Papanicolaou test, independent of gestational age, parity or maternal age. Three endocervical samples were collected; the first two were collected with a brush (Cytobrush plus, Mediscand, Sweden) and the third with Ayre's spatula. The first specimen was used for McCoy cell culture and the other two were examined cytologically. Chlamydial infection was detected in 9 (7.9%) patients. Only one (0.8%) was diagnosed by cytological exam. The sensitivity and specificity of the cytological examination were 10 and 98%, respectively. The estimated positive predictive value was 33.3% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlamydia trachomatis; Pregnancy; Infection; And cervical cytology.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000500007

Georeferencing of deaths from sepsis in the city of São Paulo
Provedor de dados: 55
Autores: Diament,Décio; Colombari,Fernando; Cypriano,Adriana Serra; Lisboa,Luis Fernando; dos Santos,Bento Fortunato Cardoso; Cendoroglo Neto,Miguel; Serpa Neto,Ary; Silva,Eliezer.
Abstract  Objective The aim of the present study was to obtain information about deaths due to sepsis in São Paulo from 2004 to 2009 and their relationship with geographical distribution.  Methods Causes of death, both main and secondary, were defined according to the codes of the International Classification of Disease version 10 (ICD-10) contained in the database. Sepsis, septic shock, multiple organ failure, pneumonia, urinary tract infection, peritonitis and other intraabdominal infections, skin and soft tissue infections (including surgical wound infection) and meningitis were considered as immediate cause of death or as the condition leading to the immediate cause of death related or associated to sepsis.  Results In the analyzed period, there was a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sepsis; Mortality; Infection; Georeferencing.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200149

Molecular detection of cytomegalovirus, herpes simplex virus 2, human papillomavirus 16-18 in Turkish pregnants
Provedor de dados: 55
Autores: Dinc,Bedia; Bozdayi,Gulendam; Biri,Aydan; Kalkanci,Ayse; Dogan,Bora; Bozkurt,Nuray; Rota,Seyyal.
OBJECTIVE: Human cytomegalovirus (CMV) is the most common cause of viral intrauterine infections in the world. Herpes simplex virus type 2 (HSV-2) and human papillomavirus (HPV) are the main agents of viral sexually transmitted diseases, which cause genital ulcers and genital warts, respectively. HPV infection has been linked to the majority of the anogenital malignancies. The aim of this study was to detect the existence of CMV, HSV-2 and HPV type 16-18 in Turkish pregnants by using sensitive molecular assays. METHODS: One hundred thirty-four women (18-41 years old; mean age ± SD: 27 ± 8) applied to outpatient clinic of Obstetrics and Gynecology, in between 18th - 22nd weeks of their pregnancy and a control group of 99 healthy women (15-39 years old; mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pregnancy; Infection; Polymerase chain reaction.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000600005

Experimental infections with Paracoccidioides brasiliensis obtained from armadillos: comparison to clinical isolates
Provedor de dados: 55
Autores: Nishikaku,Angela Satie; Peraçoli,Maria Terezinha S.; Bagagli,Eduardo; Sugizaki,Maria Fátima; Sartori,Alexandrina.
Paracoccidioides brasiliensis causes paracoccidioidomycosis (PCM) that is one of the most prevalent systemic human mycoses in Latin America. Armadillos show a high incidence of PCM infection and could, therefore, be a natural reservoir for this fungus. In this study were compared the virulence profiles of isolates obtained from nine-banded armadillos (Dasypus novemcinctus) (PbT1 and PbT4) and isolates from PCM patients (Pb265 and Bt83). Pathogenicity was evaluated by fungal load and analysis of colony morphology. Immunity against the fungus was tested by delayed type hypersensitivity test (DTH) and antibody quantification by ELISA. The higher virulence of PbT1 and PbT4 was suggested by higher fungal load in spleen and lungs. Armadillo isolates and Bt83...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paracoccidioides brasiliensis; Armadillos; Infection; BALB/c mice.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000100013

Transmitted drug resistance in patients with acute/recent HIV infection in Brazil
Provedor de dados: 55
Autores: Ferreira,Ana Cristina G.; Coelho,Lara E.; Grinsztejn,Eduarda; Jesus,Carlos S. de; Guimarães,Monick L.; Veloso,Valdiléa G.; Grinsztejn,Beatriz; Cardoso,Sandra W.
Abstract  Introduction: The widespread use of antiretroviral therapy increased the transmission of antiretroviral resistant HIV strains. Antiretroviral therapy initiation during acute/recent HIV infection limits HIV reservoirs and improves immune response in HIV infected individuals. Transmitted drug resistance may jeopardize the early goals of early antiretroviral treatment among acute/recent HIV infected patients.  Methods: Patients with acute/recent HIV infection who underwent resistance test before antiretroviral treatment initiation were included in this analysis. HIV-1 sequences were obtained using an in house protease/reverse transcriptase genotyping assay. Transmitted drug resistance was identified according to the Stanford HIV Database for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HIV; Infection; Transmission; Primary resistance; Antiretroviral therapy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000400396

A simple mathematical model to determine the ideal empirical antibiotic therapy for bacteremic patients
Provedor de dados: 55
Autores: Tuon,Felipe F.; Rocha,Jaime L.; Leite,Talita M.; Dias,Camila.
BACKGROUND: Local epidemiological data are always helpful when choosing the best antibiotic regimen, but it is more complex than it seems as it may require the analysis of multiple combinations. The aim of this study was to demonstrate a simplified mathematical calculation to determine the most appropriate antibiotic combination in a scenario where monotherapy is doomed to failure. METHODS: The susceptibility pattern of 11 antibiotics from 216 positive blood cultures from January 2012 to January 2013 was analyzed based on local policy. The length of hospitalization before bacteremia and the unit (ward or intensive care unit) were the analyzed variables. Bacteremia was classified as early, intermediate or late. The antibiotics were combined according to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mathematical model; Infection; Antibiotic; Bacteremia.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000400360

Vancomycin use in a brazilian teaching hospital: comparison with the Hospital Infection Controlpractices Advisory Committee Guidelines (HICPAC)
Provedor de dados: 55
Autores: Melo,Daniela Oliveira de; Ribeiro,Eliane.
This study describes vancomycin prescribing patterns in an average complexity hospital and compare the guidelines proposed by the Hospital Infection Control Practices Advisory Committee (HICPAC). The study was conducted in a 256-bed secondary-care hospital. Data were collected of all patients given vancomycin from March 2003 to February 2004, using a standardized chart-extraction form designed. Appropriate and inappropriate use was reviewed according to the Hospital Infection Control Practices Advisory Committee (HICPAC) guidelines on prudent vancomycin use. Out of 118 prescriptions, 95 (80.5%) were considered appropriate. Out of these 95 orders, 77 (81.1%) were administered for empiric treatment of suspected Gram-positive infections, 17 (17.9%) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vancomycin; Infection; Guidelines; Antimicrobial use.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000300001

Epidemiology of septic arthritis of the knee at Hospital das Clínicas, Universidade de São Paulo
Provedor de dados: 55
Autores: Helito,Camilo Partezani; Noffs,Guilherme Guelfi; Pecora,Jose Ricardo; Gobbi,Riccardo Gomes; Tirico,Luis Eduardo Passarelli; Lima,Ana Lucia Munhoz; de Oliveira,Priscila Rosalba; Camanho,Gilberto Luis.
Background:Septic arthritis is an infrequent disease although very important due to the possibility of disastrous outcomes if treatment is not adequately established. Adequate information concerning the epidemiology of septic arthritis is still lacking due to the uncommon nature of the disease as well as the struggle to establish a correct case-definition.Objective:To epidemiologically characterize the population seen at Hospital das Clínicas, University of São Paulo with a diagnosis of septic arthritis between 2006 and 2011.Methods:Sixty-one patients diagnosed with septic arthritis of the knee between 2006 and 2011 were retrospectively evaluated. The patients' clinical and epidemiological characteristics, the microorganisms that caused the infection and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Knee; Infection; Septic arthritis; Epidemiology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000100028

Influenza in Yucatan in 2018: Chronology, characteristics and outcomes of ambulatory and hospitalized patients
Provedor de dados: 55
Autores: Mendez-Dominguez,Nina I.; Bobadilla-Rosado,Luis O.; Fajardo-Ruiz,Lizbeth S.; Camara-Salazar,Andrea; Gomez-Carro,Salvador.
ABSTRACT  Introduction: Influenza season is expected between October and February in the northern hemisphere, including Mexico. Previous studies suggested that transmission peak may occur earlier in Yucatan, a state in southeast Mexico.  Objectives: (a) Describe the seasonality of 2018 influenza cases seen at O´Horan hospital, statewide, and nationwide; (b) analyze the characteristics, clinical manifestations and outcomes of ambulatory and hospitalized patients; (c) analyze fatal outcomes occurrence among vaccinated and unvaccinated individuals.  Methods: Retrospective analytic cohort of all confirmed influenza cases assisted at O´Horan hospital during 2018, along with a chronologic graphic description of the statewide epidemic curve from the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Influenza virus; Infection; Hospitalization; Signs and symptoms.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000500358

Carbapenem-resistant Klebsiella pneumoniae colonization in pediatric and neonatal intensive care units: risk factors for progression to infection
Provedor de dados: 55
Autores: Akturk,Hacer; Sutcu,Murat; Somer,Ayper; Aydın,Derya; Cihan,Rukiye; Ozdemir,Aslı; Coban,Asuman; Ince,Zeynep; Citak,Agop; Salman,Nuran.
Abstract  Background Little is known about factors associated with carbapenem-resistant Klebsiella pneumoniae infections in pediatric patients, who are initally colonized with carbapenem-resistant Klebsiella pneumoniae.  Materials and methods A retrospective case–control study was conducted involving pediatric and neonatal intensive care units throughout a five-year period (January 2010–December 2014). Clinical and microbiological data were extracted from Hospital Infection Control Committee reports and patients’ medical records. Risk factors were assessed in carbapenem-resistant Klebsiella pneumoniae colonized patients who developed subsequent systemic infection (cases) and compared to carbapenem-resistant Klebsiella pneumoniae colonized patients who did...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbapenem resistant Klebsiella pneumoniae; Infection; Colonization; Pediatric/Neonatal intensive care.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200134

Antibiotics produced by Streptomyces
Provedor de dados: 55
Autores: Procópio,Rudi Emerson de Lima; Silva,Ingrid Reis da; Martins,Mayra Kassawara; Azevedo,João Lúcio de; Araújo,Janete Magali de.
Streptomyces is a genus of Gram-positive bacteria that grows in various environments, and its shape resembles filamentous fungi. The morphological differentiation of Streptomyces involves the formation of a layer of hyphae that can differentiate into a chain of spores. The most interesting property of Streptomyces is the ability to produce bioactive secondary metabolites, such as antifungals, antivirals, antitumorals, anti-hypertensives, immunosuppressants, and especially antibiotics. The production of most antibiotics is species specific, and these secondary metabolites are important for Streptomyces species in order to compete with other microorganisms that come in contact, even within the same genre. Despite the success of the discovery of antibiotics,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Streptomyces; Antibiotics; Resistance; Infection.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000500011

Sulbactam-based therapy for Acinetobacter baumannii infection: a systematic review and meta-analysis
Provedor de dados: 55
Autores: Chu,Haiqing; Zhao,Lan; Wang,Minggui; Liu,Yang; Gui,Tao; Zhang,Jingbo.
BACKGROUND: A number of studies have reported on the effectiveness of sulbactam-based therapies for Acinetobacter baumannii infection; however, there is little evidence that sulbactam-based therapies are more or less effective than alternative therapies. Unfortunately, there is a distinct lack of high quality data (i.e., from randomized controlled trials) available on this issue. Therefore, we conducted a systematic review and meta-analysis comparing the efficacy of sulbactam-based and non-sulbactam-based regimens in the treatment of A. baumannii infection. METHODS: We searched PubMed, MEDLINE, Biomedical Central, Google Scholar, the China National Knowledge Infrastructure, the Cochrane library, and the Directory of Open Access using the terms "sulbactam...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acinetobacter baumannii; Infection; Meta-analysis; Sulbactam; Systematic review.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400001

Microbiology of the middle meatus compared to sputum in young patients with cystic fibrosis from Bahia - Brazil
Provedor de dados: 55
Autores: Tunes,Alessandro; Reis,Joice Neves; Terse,Regina; Santana,Maria Angélica; Diniz,Ana Lúcia; Barros,Tânia Fraga; Leal,Ana Karina Souza; Paixão,Vilma; Grassi,Maria Fernanda Rios.
Lower airway infection is a major cause of morbidity and mortality in patients with cystic fibrosis. It is currently unknown if the infection of the upper airway can cause exacerbation of lower respiratory tract infection. This study aimed to determine the microbiological profile of the anterior paranasal sinuses outflow tract (middle meatus) of cystic fibrosis outpatients. The microbiological profile was defined using endoscopically directed middle meatal cultures. Paired middle meatal and sputum specimens were collected from 56 outpatients for aerobic cultures. A semi-quantitative leukocyte count of the middle meatal samples was performed. The median age of patients was nine years (3-20 years). Staphylococcus aureus (37%),...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cystic fibrosis; Middle meatus; Infection; Endoscopy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000200215

A single center 14 years study of infectious complications leading to hospitalization of patients with primary antibody deficiencies
Provedor de dados: 55
Autores: Mamishi,Setareh; Eghbali,Aiden Nasiri; Rezaei,Nima; Abolhassani,Hassan; Parvaneh,Nima; Aghamohammadi,Asghar.
Primary antibody deficiencies (PADs) are a heterogeneous group of disorders, characterized by hypogammaglobulinemia and increased susceptibility to bacterial infections, leading to hospitalizations. This study was performed to determine the main infectious causes of hospital admissions in selective Iranian patients with PADs. Forty patients with PADs, who were admitted to the Infectious Ward of Children's Medical Center Hospital during a 14-year period, were reviewed in this study. There were 115 documented episodes of hospital admission during a 14-year period. The average length of hospital stay was 33.30 ± 25.72 days. Pneumonia was the most prominent infection leading to hospitalization among these patients (n = 48), followed by gastroenteritis (n =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Hospitalization; Primary antibody deficiencies.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000400007

The role of microRNAs in enteroviral infections
Provedor de dados: 55
Autores: Wu,Jing; Shen,Li; Chen,Jianguo; Xu,Huaxi; Mao,Lingxiang.
ABSTRACTThe genus Enterovirus, a member of thePicornavirus family, are RNA viruses that can cause poliomyelitis, hand-food-mouth disease, viral meningitis or meningoencephalitis, viral myocarditis and so on. MicroRNAs are a class of highly conserved, small noncoding RNAs recognized as important regulators of gene expression. Recent studies found that MicroRNAs play a significant role in the infection ofEnterovirus, such as enterovirus 71, coxsackievirus B3 and other Enterovirus. Enteroviral infection can alter the expression of cellular MicroRNAs, and cellular MicroRNAs can modulate viral pathogenesis and replication by regulating the expression level of viral or host's genes. Herein, this review summarizes the role of MicroRNAs in enteroviral infection.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MicroRNAs; Enterovirus; Infection.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000500510

Health care workers humoral immune response against GLcB, MPT51 and HSPX from Mycobacterium tuberculosis
Provedor de dados: 55
Autores: Reis,Michelle Cristina Guerreiro dos; Rabahi,Marcelo Fouad; Kipnis,André; Junqueira-Kipnis,Ana Paula.
Tuberculosis (TB) is one of the oldest human infectious diseases and one third of the world's population is latently infected. Brazil is an endemic area for TB. One of the most important challenges in TB control is the identification of latently infected individuals. Health Care Workers (HCW) are at high risk of being infected with Mycobacterium tuberculosis and even to become TB latently infected. The aim of this study was to increase knowledge about humoral immune response in TB latently infected individuals. HCW were classified according to their tuberculin skin test (TST), as positive or negative. The antibody response to GLcB, MPT51 and HSPX from Mycobacterium tuberculosis was evaluated. TST negative HCW constituted the majority of those who showed a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Latent tuberculosis; Infection; Antibodies.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000600006

Surgical-site infection risk in oncologic digestive surgery
Provedor de dados: 55
Autores: Castro,Paulo de Tarso Oliveira e; Carvalho,André Lopes; Peres,Stela Verzinhasse; Foschini,Milene Mitsuyuki; Passos,Afonso Dinis Costa.
Surgical-site infection (SSI) is the most prevalent type of hospital infection in surgical patients and is associated with an increase in hospital stay, costs and morbidity/lethality. The knowledge of the main risk factors for this type of infection is important for the establishment of prevention measures regarding modifiable risks factors. The objective of the preset study was to assess the occurrence of SSI and study the risk factors in oncologic surgeries of the digestive system at Hospital de Câncer in Barretos, São Paulo, Brazil. Individuals undergoing oncologic surgeries of the digestive system in the period of 08/01/2007 to 08/10/2008 were prospectively followed for 30 days after surgery. Possible risk factors related to the patient and to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Surgical site; Oncologic surgery; Digestive system surgery.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000200003

Vancomycin use in a hospital with high prevalence of Methicillin-Resistant Staphylococcus aureus: comparison with Hospital Infection Control Practices Advisory Committe Guidelines (HICPAC)
Provedor de dados: 55
Autores: Melo,Daniela Oliveira de; Sasaki,Marli; Grinbaum,Renato Satovschi.
This study evaluates vancomycin prescribing patterns in a tertiary-care hospital, with high prevalence of methicillin-resistant Staphylococcus aureus, comparing with the guidelines proposed by the Hospital Infection Control Practices Advisory Committee. The study was conducted in a 930-bed tertiary-care hospital, during 40 days (March 10 to April 30, 2003). Data were collected of all patients given vancomycin, using a standardized chart-extraction form designed. Inappropriate use was subdivided in five categories: empiric therapy without risk factors; continued empiric use for presumed infections in patients whose cultures were negative for beta-lactam-resistant Gram-positive microorganisms; treatment of infections caused by beta-lactam-sensitive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vancomycin; Infection; Guidelines; Antimicrobial use.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000100014

Transverse myelitis caused by varicella zoster: case reports
Provedor de dados: 55
Autores: Yýlmaz,Sema; Köseoðlu,Hamide Kart; Yücel,Eftal.
Transverse myelitis is a group of disorders characterized by focal inflammation of the spinal cord and results in loss of motor and sensory function below the level of injury. Occurrence of this condition during or following varicella infection is uncommon. This report describes two cases of transverse myelitis caused by varicella zoster.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Varicella zoster; Infection; Transverse myelitis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000100040

Clustering of Enterococcus faecalis infections in a cardiology hospital neonatal intensive care unit
Provedor de dados: 55
Autores: Strabelli,Tânia Mara Varejão; Cais,Daiane P.; Zeigler,Rogério; Siciliano,Rinaldo; Rodrigues,Cristhieni; Carrara,Dirceu; Neres,Suzi; Lessa,Sarita; Uip,David Everson.
Early identification of an outbreak is one of the main advantages of routine epidemiological surveillance. Enterococcus spp. used to be regarded as microorganisms of low pathogenicity, because they are part of the normal microbial flora of the gastrointestinal and genitourinary tract. Recently, they have emerged as important pathogenic agents, sometimes causing infections with high mortality rates. We studied a clustering of primary bloodstream infections caused by Enterococcus faecalis in a cardiology hospital neonatal intensive care unit (NICU). Four cases of primary bloodstream infection by E. faecalis were detected from April 15 to May 13, 2004, during active infection surveillance. The isolates were sensitive to glycopeptides. Some aspects of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enterococcus faecalis; Clustering; Neonatal intensive care unit; Bloodstream; Infection.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000200008

The association of HLA-DRB1 alleles and drug use with HIV infection in a Chinese Han Cohort
Provedor de dados: 55
Autores: Diao,Bo; Du,Juan; Liu,Ying; Luo,Fan; Hou,Wei.
Objective:To investigate the relationship between the polymorphism of human leukocyte antigen (HLA)-DRB1 and the susceptibility and repellency of drug use combined with HIV infection in Chinese.Methods:A total of 213 unrelated healthy people, 41 HIV-infected drug users, 24 HIV-uninfected drug users, and 64 HIV-infected non-drug users were recruited. Their HLA-DRB1 allele frequencies were analyzed by PCR-SSP and allele distribution was analyzed.Results:Compared with healthy controls, in drug users, the frequencies of HLA-DRB1 *0401-041, *1001 were significantly higher; in HIV-infected patients, the frequencies of HLA-DRB1 *0101-0103, *0401-0411, *1001 were significantly higher, while the frequencies of DRB1 *1501-1502, *1101-1105, *1301-1302, DRB4, DRB5...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: HLA-DRB1; Polymorphism; Drug use combined with HIV; Infection; Frequency.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000100082

Risk of tuberculosis among household contacts in Salvador, Bahia
Provedor de dados: 55
Autores: Lemos,Antonio Carlos; Matos,Eliana D; Pedral-Sampaio,Diana B; Netto,Eduardo M.
Tuberculosis is one of the most important infectious diseases in the world. Only 68% of the estimated new tuberculosis (TB) cases in Brazil are diagnosed. Our aim was to determine the risk of infection among household contacts. Study design. Cohort of tuberculin-negative household contacts followed for 12 Months. Methods. Household contacts of randomly selected index acid-fast bacilli (AFB)-positive TB cases were evaluated through clinical examination, thorax X-ray, tuberculin, AFB smear and culture. Contacts with a negative response to the tuberculin test (less than 10 mm diameter) were retested after 90 days. Tuberculin reversal (used as a parameter of infection risk) was defined as an increase of at least 10 mm from the last measurement. Results. 269...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Infection; Epidemiology; Prevalence.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000600006

Preeclampsia: from epidemiological observations to molecular mechanisms
Provedor de dados: 56
Autores: López-Jaramillo,P.; Casas,J.P.; Serrano,N.
Preeclampsia is the main cause of maternal mortality and is associated with a five-fold increase in perinatal mortality in developing countries. In spite of this, the etiology of preeclampsia is unknown. The present article analyzes the contradictory results of the use of calcium supplementation in the prevention of preeclampsia, and tries to give an explanation of these results. The proposal of an integrative model to explain the clinical manifestations of preeclampsia is discussed. In this proposal we suggest that preeclampsia is caused by nutritional, environmental and genetic factors that lead to the creation of an imbalance between the free radicals nitric oxide, superoxide and peroxynitrate in the vascular endothelium. The adequate interpretation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Preeclampsia; Calcium supplementation; Nitric oxide; Infection; Inflammation; Oxidative stress; Endothelial dysfunction.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001000001

Chronic granulomatous disease: why an inflammatory disease?
Provedor de dados: 56
Autores: Roxo-Junior,P.; Simão,H.M.L.
Chronic granulomatous disease is a primary immunodeficiency caused by mutations in the genes encoding subunits of the phagocytic NADPH oxidase system. Patients can present with severe, recurrent infections and noninfectious conditions. Among the latter, inflammatory manifestations are predominant, especially granulomas and colitis. In this article, we systematically review the possible mechanisms of hyperinflammation in this rare primary immunodeficiency condition and their correlations with clinical aspects.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chronic granulomatous disease; Inflammation; Infection; Granulomas; NADPH oxidase.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001100924

Altered peripheral lymphocyte subsets in untreated systemic lupus erythematosus patients with infections
Provedor de dados: 56
Autores: Lu,Zhimin; Li,Jing; Ji,Juan; Gu,Zhifeng; Da,Zhanyun.
The leading cause of death in systemic lupus erythematosus (SLE) patients is infection. The objective of this study was to evaluate the distribution of lymphocyte subsets in untreated SLE patients with infections. This was a cross-sectional study. Data from January 2017 to May 2018 were collected. Flow cytometry was used to measure the peripheral lymphocyte subsets including CD3+T cells, CD4+T cells, CD8+T cells, CD19+B cells, CD3-CD16+CD56NK cells, and CD3+CD16+CD56NKT cells in 25 healthy controls and 52 treatment-naive SLE patients, among whom 13 were complicated with infections. Association between the lymphocyte subsets and infections was further analyzed. SLE patients with infections (n=13) showed a significantly higher incidence rate of fever (84.6...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systemic lupus erythematosus; Lymphocyte subsets; Infection; C-reactive protein; Procalcitonin.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000400609

What about Th1/Th2 in cutaneous leishmaniasis vaccine discovery?
Provedor de dados: 56
Autores: Campos-Neto,A.
The T helper cell type 1 (Th1) response is essential to resist leishmaniasis, whereas the Th2 response favors the disease. However, many leishmanial antigens, which stimulate a Th1 immune response during the disease or even after the disease is cured, have been shown to have no protective action. Paradoxically, antigens associated with an early Th2 response have been found to be highly protective if the Th1 response to them is generated before infection. Therefore, finding disease-associated Th2 antigens and inducing a Th1 immune response to them using defined vaccination protocols is an interesting unorthodox alternative approach to the discovery of a leishmania vaccine.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leishmania; Th1/Th2 paradigm; Infection; Vaccine; Antigen discovery; Adjuvant.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000700001

T cell subsets and immunoglobulin G levels are associated with the infection status of systemic lupus erythematosus patients
Provedor de dados: 56
Autores: Wu,Lifen; Wang,Xinru; Chen,Fenghua; Lv,Xing; Sun,Wenwen; Guo,Ying; Hou,Hou; Ji,Haiyan; Wei,Wei; Gong,Lu.
Systemic lupus erythematosus (SLE) is a chronic, autoimmune disorder that affects nearly all organs and tissues. As knowledge about the mechanism of SLE has increased, some immunosuppressive agents have become routinely used in clinical care, and infections have become one of the direct causes of mortality in SLE patients. To identify the risk factors indicative of infection in SLE patients, a case control study of our hospital's medical records between 2011 and 2013 was performed. We reviewed the records of 117 SLE patients with infection and 61 SLE patients without infection. Changes in the levels of T cell subsets, immunoglobulin G (IgG), complement C3, complement C4, globulin, and anti-double-stranded DNA (anti-ds-DNA) were detected. CD4+ and CD4+/CD8+...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systemic lupus erythematosus; Infection; T cell subsets; Immunoglobulin G.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000200610

Parasitic infections in germfree animals
Provedor de dados: 56
Autores: Vieira,L.Q.; Oliveira,M.R.; Neumann,E.; Nicoli,J.R.
The association of vertebrate hosts with the indigenous microbiota and its effect on the response to infections has long been a subject of scientific curiosity. From the first theory supported by Louis Pasteur that life would be impossible in the absence of associated microorganisms to the development of germfree mammals for research, a lot was learned about how the normal microbiota influences the environment in which pathogens may find themselves. In the present review, we attempt to summarize the more recent results from our group and others on the influence of the normal microbiota on the outcome of parasitic infections. Our results and those of others point to a complex relationship between the mammalian system and its indigenous microbiota, leading...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germfree; Microbiota; Gnotobiotic; Infection; Leishmania; Trypanosoma.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000100013

Risk factors associated with the death of patients hospitalized for juvenile systemic lupus erythematosus
Provedor de dados: 56
Autores: Faco,M.M.M.; Leone,C.; Campos,L.M.A.; Febrônio,M.V.; Marques,H.H.S.; Silva,C.A.
We assessed the risk factors associated with death in patients hospitalized for juvenile systemic lupus erythematosus (JSLE) and evaluated the autopsy reports. A total of 57,159 hospitalizations occurred in our institution from 1994 to 2003, 169 of them involving 71 patients with JSLE. The most recent hospitalization of these patients was evaluated. Patients were divided into two groups based on mortality during hospitalization: those who survived (N = 53) and those who died (N = 18). The main causes of hospitalization were JSLE activity associated with infection in 52% and isolated JSLE activity in 44%. Univariate analysis showed that a greater risk of death was due to severe sepsis (OR = 17.8, CI = 4.5-70.9), systemic lupus erythematosus disease activity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Juvenile systemic lupus erythematosus; Hospitalization; Outcome; Autopsy; Severe sepsis; Infection.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700015

Plasticity of neutrophils reveals modulatory capacity
Provedor de dados: 56
Autores: Perobelli,S.M.; Galvani,R.G.; Gonçalves-Silva,T.; Xavier,C.R.; Nóbrega,A.; Bonomo,A.
Neutrophils are widely known as proinflammatory cells associated with tissue damage and for their early arrival at sites of infection, where they exert their phagocytic activity, release their granule contents, and subsequently die. However, this view has been challenged by emerging evidence that neutrophils have other activities and are not so short-lived. Following activation, neutrophil effector functions include production and release of granule contents, reactive oxygen species (ROS), and neutrophil extracellular traps (NETs). Neutrophils have also been shown to produce a wide range of cytokines that have pro- or anti-inflammatory activity, adding a modulatory role for this cell, previously known as a suicide effector. The presence of cytokines almost...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autoimmunity; Cancer; Infection; Inflammation; Neutrophil; Suppression.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800665

Treatment of a subdural empyema complicated by intracerebral abscess due to Brucella infection
Provedor de dados: 56
Autores: Zhang,J.; Chen,Z.; Xie,L.; Zhao,C.; Zhao,H.; Fu,C.; Chen,G.; Hao,Z.; Wang,L.; Li,W.
A 55-year-old male presented with fever, stupor, aphasia, and left hemiparesis. A history of head trauma 3 months before was also reported. Cranial magnetic resonance imaging revealed slight contrast enhancement of lesions under the right frontal skull plate and right frontal lobe. Because of deterioration in nutritional status and intracranial hypertension, the patient was prepared for burr hole surgery. A subdural empyema (SDE) recurred after simple drainage. After detection of Brucella species in SDE, craniotomy combined with antibiotic treatment was undertaken. The patient received antibiotic therapy for 6 months (two doses of 2 g ceftriaxone, two doses of 100 mg doxycycline, and 700 mg rifapentine for 6 months) that resulted in complete cure of the...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Subdural empyema; Neurobrucellosis; Craniotomy; Infection; Treatment.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000500501

Effect of lung resection and sham surgery on the frequency of infection in alloxan-diabetic rats
Provedor de dados: 56
Autores: Seidel,A.C.; Fagundes,D.J.; Bazotte,R.B.; Novo,N.F.; Juliano,Y.; Meister,H.
The present study was carried out in order to determine the effect of lung resection on the frequency of infections in alloxan-diabetic rats. Adult female Wistar rats were injected with alloxan (40 mg/kg, iv) to induce diabetes mellitus (group D; N = 45) or with vehicle (1.0 ml/kg, iv) to be used as controls (group C; N = 45). Thirty-six days after receiving alloxan both groups were randomly divided into three subgroups: no operation (NO; N = 15), sham operation (SO; N = 15), and left pneumonectomy (PE; N = 15). The rats were sacrificed 36 days after surgery and their lungs were examined microscopically and macroscopically. The occurrence of thoracic wall infection, thoracic wall abscess, lung abscess and pleural empyema was similar in groups D and C. In...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Diabetes; Alloxan; Pneumonectomy; Rats; Infection.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000300001

Streptococcus iniae outbreaks in Brazilian Nile tilapia (Oreochromis niloticus L: ) farms
Provedor de dados: 58
Autores: Figueiredo,H. C. P.; Nobrega Netto,L.; Leal,C. A. G.; Pereira,Ulisses P.; Mian,Glaúcia F.
This is the first report of outbreaks of Streptococcus iniae in Nile tilapia farms in South America. Seven isolates were identified by biochemical, serological and molecular tests. Their 16S rRNA gene sequences showed 100% similarity with S. iniae ATCC 29178 and two distinct PFGE patterns were observed for Brazilian isolates.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Infection; MIC; PFGE; Phylogenetic analysis; Tilapia.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200019

Infection and colonization by Gram-negative bacilli in neonates hospitalized in High Risk Nursery at Uberlandia Federal University Hospital: etiology, resistant phenotypes and risk factors
Provedor de dados: 58
Autores: Cezário,Renata Cristina; Ribas,Rosineide Marques; Abdallah,Vânia Olivetti Steffen; Carneiro,Claudia Lúcia; Gontijo Filho,Paulo P.
The aims of this study were to determine endemic and epidemic infection due to Gram-negative bacilli, risk factors associated with colonization and infection by these organisms and the resistance phenotypes (ESBL, AmpC) in neonates admitted in a High Risk Nursery. The study was conducted during a 21 month period and included: a prospective study to evaluate the neonates with hospital infection and the use of third-generation cephalosporins; a case-control study to determine the risk factors associated with colonization/infection. Rectal and oropharynx cultures were also performed in four opportunities (September and November 2001, February and August 2002). The isolates for which the resistance of ceftazidime was 2 mg/mL were suspected of producing ESBL or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infection; Colonization; Neonates; Gram-negative bacilli; Resistance phenotype.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200004

Experimental Salmonella Gallinarum infection in light laying hen lines
Provedor de dados: 58
Autores: Berchieri Júnior,Angelo; Oliveira,Gláucia Helaine de; Pinheiro,Lucas Augusto Soeiro; Barrow,Paul A.
Although the epidemiology of fowl typhoid in chickens supposedly involves a vertical transmission stage, a previous work run by the authors has suggested that this did not happen in a commercial line of laying hens highly susceptible to systemic disease with Salmonella Gallinarum. A new experiment was carried out in two other lines of commercial layers, considerably more resistant than those used in the previous study. Clinical fowl typhoid was not observed, but Salmonella Gallinarum was isolated from the spleen and liver four weeks after infection and, sporadically, from the ovary.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Salmonella Gallinarum; White Leghorn; Infection; Laying hens.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100012

Synergistic growth effect among bacteria recovered from root canal infections
Provedor de dados: 58
Autores: Moreira Júnior,Gil; Ribeiro Sobrinho,Antônio Paulino; Bambirra,Bernardo Henrique Silva; Bambirra,Felipe Henrique Silva; Carvalho,Maria Auxiliadora Roque; Farias,Luiz Macedo; Nicoli,Jacques Robert; Moreira,Elizabeth Spangler.
The objective of this study was to determine the ecological relationships between bacterial species that colonize infected root canals. Root canal bacteria recovered from one patient with pulp canal necrosis were evaluated in vitro for synergistic and antagonistic activities determined by mono and co-culture growth kinetics and the production of bacteriocin-like substances using the double layer diffusion method. Peptostreptococcus prevotii triggered a significant increase of Fusobacterium nucleatum growth, while the former bacteria did not affect the growth of P. prevotii. The bacterial species did not produce antagonism activity against itself or against any of the other two species. Despite many studies have demonstrated the capability of root canal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root canal; Infection; Bacterial relationships.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300017

Torque teno virus among dialysis and renal-transplant patients
Provedor de dados: 58
Autores: Takemoto,Angélica Yukari; Okubo,Patrícia; Saito,Patricia Keiko; Yamakawa,Roger Haruki; Watanabe,Maria Angélica Ehara; Veríssimo da Silva Junior,Waldir; Borelli,Sueli Donizete; Bedendo,João.
Patients who undergo dialysis treatment or a renal transplant have a high risk of blood-borne viral infections, including the Torque teno virus (TTV). This study identified the presence of TTV and its genome groups in blood samples from 118 patients in dialysis and 50 renal-transplant recipients. The research was conducted in a hospital in the city of Maringá, state of Paraná. The viral DNA, obtained from whole blood, was identified by using two nested Polymerase Chain Reactions (PCR). The frequencies of TTV were 17% and 36% in dialysis patients using the methodology proposed by Nishizawa et al. (1997) and Devalle and Niel (2004), respectively, and 10% and 54% among renal-transplant patients. There was no statistically significant association between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Torque teno virus; Renal dialysis; Kidney transplant; Infection.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100307

Effects of Haemonchus contortus infection on sodium status of sheep
Provedor de dados: 65
Autores: Ortolani,Enrico Lippi.
Eight five-month-old male lambs received a diet with marginal levels of sodium (0.5 g Na/kg DM); four lambs were given a single dose of infective Haemonchus contortus larvae (4,600 L3/ head) and four were kept uninfected. The lambs were slaughtered 30 days after the infection. Sodium concentration was determined in the abomasal fluid at the slaughter. The balance between intake and faecal excretion of sodium was evaluated. Saliva was collected at days zero, 20 and 30 to determine the Na:K ratio. The mean total worm burden retrieved was 1390. The infection increased abomasal sodium concentration (p&lt; 0.001) and reduced faecal sodium excretion (p&lt;0.02), but there was not a significant relationship between worm burden and abomasal (p &gt;0.082) or faecal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Haemonchus contortus; Infection; Sheepj; Sodium; Balance; Deficiency.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000300026

Multiparasitism in gills of Metynnis lippincottianus from the environmental protection area of Curiaú river, Eastern Amazon
Provedor de dados: 65
Autores: Carvalho,Abthyllane Amaral de; Ferreira,Roger Leomar da Silva; Araújo,Priscila Gomes de; Negrão,Márcio Charles da Silva; Videira,Marcela Nunes.
ABSTRACT:  The high fish diversity of the Amazon has been the subject of study for several research projects because of the importance of its ecosystems. The Environmental Protection Area of the Curiaú River is composed of permanent and temporary lakes within the floodplain forests, favoring a rich diversity of fish species. Pratinha. (Metynnis lippincottianus) is an ornamental fish, widely distributed throughout Brazil and French Guiana. Fish parasites may reflect the environmental quality, as well as the habits of their host. Considering the importance of understanding and contributing to the expansion of studies on fish parasites, the present study aimed to investigate the gills of Metynnis lippincottianus from the Curiaú River basin in the municipality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ornamental fish; Parasitic fauna; Infection.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600501

Isolation and characterization of Streptococcus spp. group B in Nile tilapias (Oreochromis niloticus) reared in hapas nets and earth nurseries in the northern region of Parana State, Brazil
Provedor de dados: 65
Autores: Salvador,Rogério; Muller,Ernst Eckehardt; Freitas,Julio César de; Leonhadt,Julio Hermann; Pretto-Giordano,Lucienne Garcia; Dias,Juliana Alves.
The objective of this study was to isolate and characterize Streptococcus spp. in Nile tilapias (Oreochromis niloticus) reared in net-pens and earth nurseries. Eight intensive tilapia-rearing farms were investigated in north Paraná, Brazil from April 1st 2001 to April 30th 2002. The fish were reared in a system of hapas nets on four farms and in earth nurseries on other four farms. A total of 370 samples were analyzed of material collected from 120 fish (brain, liver, kidney, skin scrapes, ascites liquid and eye) that were sown on BHI agar (Brain Heart Infusion) supplemented with 1% yeast extract and sheep blood. Streptococcus spp. was isolated in 36 of the samples (18 brain, eight liver, eight kidney and two ascites liquid) from 25 fish. Streptococci were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pisciculture; Streptococci; Infection; Bacteriology.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000600023