Consulta: subjectFacets:"Etiology"
Registros recuperados: 30
Data/hora: 05/06/2024 05:47:14

Etiología de la marchitez de plantas de Sechium edule (Jacq.) Sw. en la región centro del estado de Veracruz.
Provedor de dados: 32
Autores: Olguín Hernández, Gildardo.
A nivel mundial, México ocupa el primer lugar en producción y exportación de chayote (Sechium edule) tipo verde liso. La principal zona de producción se ubica en la región central de Veracruz, principalmente en los municipios de Coscomatepec, Huatusco, Ixhuatlán del Café, Chocamán, Tlilapan, Orizaba, Rafael Delgado y Amatlán de los Reyes. Como consecuencia del éxito comercial del chayote en los mercados de Norteamérica, la superficie de la producción nacional como monocultivo ha aumentado considerablemente, lo que ha generado la aparición de problemas fitosanitarios, principalmente la marchitez de plantas. Los productores han asociado este síntoma con Phytophthora spp. y aplican para su control fungicidas a base de metalaxyl, lo cual reduce la incidencia...
Palavras-chave: Phytophthora spp.; Etiología; Chayote; Metalaxyl; Etiology; Fitopatología; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1973

Survey and prevalence of species causing Alternaria leaf spots on brassica species in Pernambuco
Provedor de dados: 75
Autores: Michereff,Sami J; Noronha,Marissônia A; Xavier Filha,Maria S; Câmara,Marcos PS; Reis,Ailton.
Brassicaceae family comprises plant species that are very important as vegetable crops, such as the species complex Brassica oleracea and Brassica rapa. Alternaria brassicicola and A. brassicae are among the most important pathogens of Brassicaceae causing Alternaria leaf spot disease. The occurrence and prevalence of Alternaria species causing leaf spots in brassica crops in Pernambuco was acessed, as well as the existence of a possible preference by vegetable host for these pathogens. Twenty-eight fields were surveyed in the Agreste region of Pernambuco state, in the 2005 and 2006 growing seasons. In each year, 10 Chinese cabbage, six cabbage, six cauliflower and six broccoli fields were visited. In each field, 50 leaves showing at least five lesions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea; Brassica rapa; Alternaria brassicae; A. brassicicola; Etiology; Epidemiology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200027

New apiaceous hosts of Sclerotinia sclerotiorum in the Cerrado region of Brazil
Provedor de dados: 75
Autores: Reis,A; Nascimento,WM.
This paper reports for the first time in the Cerrado region of Brazil the occurrence of white mold caused by Sclerotinia sclerotiorum in coriander (Coriandum sativum), parsley (Petroselinum crispum) and Peruvian carrot (Arracacia xanthorrhiza). The disease was observed on coriander, in Cristalina, Goiás State, on parsley in Gama, the Federal District and on Peruvian carrot in Ibiá, Minas Gerais State. Pathogenicity tests demonstrated that the fungus S. sclerotiorum is the causal agent of the observed symptoms in these plants. The three isolates obtained from naturally infected plants were inoculated in coriander (cv. Verdão), parsley (cv. Lisa Gigante), Peruvian carrot (cv. Amarela de Senador Amaral) and carrot (cv. Forto Nantes) and they were pathogenic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arracacia xanthorrhiza; Coriandrum sativum; Petroselinum crispum; White mold; Etiology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000100021

Powdery mildew of Allium species caused by Oidiopsis taurica in Brazil
Provedor de dados: 75
Autores: Reis,Ailton; Boiteux,Leonardo S.; Paz-Lima,Milton L.; Silva,Patrícia P.; Lopes,Carlos A.
Oidiopsis taurica Salmon (Syn. Oidiopsis sicula Scalia) was identified as the causal agent of a powdery mildew disease occurring on distinct Allium species in Brazil. This disease was initially observed in plastic house and field-grown garlic (Allium sativum) and leek (A. porrum) accessions in Brasília (Federal District) and in field-grown and greenhouse onion (A. cepa) cultivars in Belém do São Francisco (Pernambuco State) and Brasília, respectively. Typical symptoms consisted of chlorotic areas on the leaf surface corresponding to a fungal colony. These lesions turned to a brownish color with the progress of the disease. Fungi morphology was similar to that described for O. taurica. Endophytic mycelium emerging through estomata, light pale conidia were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leveillula taurica; Allium cepa; A. porrum; A. sativum; Etiology.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362004000400018

Patogenicidade de Pantoea ananatis e Phaeosphaeria maydis em plantas de milho.
Provedor de dados: 14
Autores: COSTA, R. V.; COTA, L. V.; SILVA, D. D. da; FIGUEIREDO, J. E. F.; CASELA, C. R.; LANZA, F. E.; ZAMBOLIM, L.; PACCOLA-MEIRELLES, L. D.
Mancha-branca-do milho (MBM), também conhecida como mancha-de-feosféria (MF), tornou-se uma das mais importantes doenças do milho no Brasil. A etiologia da MBM/MF permanece objeto de controvérsia e debate. Este estudo teve como objetivo testar o fungo Phaeosphaeria maydis e a bactéria Pantoea ananatis como agentes causadores da doença MBM/MF. As identidade dos isolados bacterianos foi confirmada por primers específicos da espécie P. ananatis. O fungo P. maydis foi isolado a partir de plantas do híbrido comercial DAS657 sensível a MBM/MF. Plantas de DAS657 foram inoculadas com P. ananatis (HR+) e P. maydis em casa de vegetação. Plantas inoculadas com P. ananatis reproduziram sintomas típicos da doença MBM/MF e P. ananatis foi consistentemente reisolada das...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Postulado de Koch; Doença de planta; Fungo; Bactéria; Zea mays; Etiologia; Plant diseases and disorders; Etiology.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/979808

Antracnose foliar do sorgo.
Provedor de dados: 14
Autores: COSTA, R. V. da; SILVA, D. D. da; COTA, L. V.
bitstream/item/101768/1/circ-196.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Signs and symptoms.; Sorghum bicolor; Doença de planta; Doença fungica; Sintoma; Etiologia; Epidemiologia; Plant diseases and disorders; Fungal diseases of plants; Etiology; Epidemiology.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/975579

Oil palm fatal yellowing (FY), a disease with an elusive causal agent.
Provedor de dados: 14
Autores: BITTENCOURT, C. B.; LINS, P. de C.; BOARI, A. de J.; QUIRINO, B. F.; TEIXEIRA, W. G.; SOUZA JUNIOR, M. T.
Abstract: Fatal yellowing disease (FY) is a bud rot-type disease that severely affects oil palm plantations in Latin America. Since 1974, when it was first reported in Brazil, this disorder has been responsible for severe economic losses in the oil palm industry; and, for nearly 50 years, several studies have tried to identify its causal agent, without success. The etiological studies regarding FY in oil palm explored either biotic and abiotic stress scenarios, in a single or combined manner. Most recently, the hypothesis in favor of one biotic cause has lost some grounds to the abiotic one, mainly due to new insights regarding deficient aeration in the soil, which reduces the potential for oxy-reduction, causing changes in the ionic composition of the...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Amarelecimento letal; Fatal yellowing; Dendê; Epidemiology; Palm oils; Abiotic stress; Biotic stress; Etiology; Elaeis; Tropical agriculture.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135533

Bacterial disease in marine bivalves, a review of recent studies: Trends and evolution
Provedor de dados: 5
Autores: Paillard, Christine; Leroux, Frederique; Borrego, Juan.
The main microbial diseases affecting marine cultured bivalves have been revised on the basis of the etiologic agents, pathogenesis and pathogenicity. Several recent bivalve-interaction models have been studied, including Pecten larvae-Vibrio pectinicida, brown ring disease, juvenile oyster disease, Pacific oyster nocardiosis and summer mortalities of oysters. In addition, the taxonomy and phylogeny of new potential bivalve pathogens and their virulence factors have been established. Facing the difficulty of identifying bacterial strains associated with molluscan diseases (mainly vibriosis), polyphasic approaches have been developed to correlate the phenotype and genotype of potential pathogens. By evaluating likely virulence mechanisms, developing...
Tipo: Text
Palavras-chave: Diagnostic tools; Virulence factors; Pathogenicity; Pathogenesis; Etiology; Bivalve mollusc; Vibriosis.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-407.pdf

Infection rickettsienne de Donax trunculus
Provedor de dados: 5
Autores: Comps, Michel.
Identification card of the diseases and parasites infection fishes, crustaceans and molluscs, prepared in the framework of the CIEM workgroup on the CIEM workgroup on the pathology and diseases of marine organisms.
Tipo: Text
Palavras-chave: Donax trunculus; Etiologie; Prophylaxie et traitement; Histopathologie; Donax trunculus; Etiology; Control; Histopathology.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00140/25078/23184.pdf

Infection rickettsienne de l'huître plate
Provedor de dados: 5
Autores: Comps, Michel.
Tipo: Text
Palavras-chave: Ostrea edulis; Maladie; Etiologie; Prophylaxie et traitement; Histopathologie; Ostrea edulis; Disease; Etiology; Control; Histopathology.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00140/25077/23183.pdf

Virose de l'huître portugaise
Provedor de dados: 5
Autores: Comps, Michel.
Tipo: Text
Palavras-chave: Virose; Crassostrea angulata; Crassostrea gigas; Etiologie; Prophylaxie et traitement; Histopathologie; Virosis; Crassostrea angulata; Crassostrea gigas; Etiology; Control; Histopathology.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00140/25076/23182.pdf

Maladie de la glande digestive de l'huître plate
Provedor de dados: 5
Autores: Comps, Michel.
Tipo: Text
Palavras-chave: Ostrea edulis; Etiologie; Prophylaxie et traitement; Histopathologie; Ostrea edulis; Etiology; Control; Histopathology.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00140/25079/23187.pdf

Crescimento micelial e esporulação de isolados de Phytophthora sp. patogênicos à acácia-negra
Provedor de dados: 190
Autores: Abdanur, Adriano; Santos, Alvaro Figueredo dos; Tratch, Renato.
Avaliou-se o crescimento micelial e a esporulação de sete isolados de Phytophthora de acácia-negra (Acacia mearnsii), sob diferentes condições. Observou-se maior crescimento micelial nos meios cenoura-ágar e V-8, entre 20ºC e 28ºC. A 12ºC o crescimento foi mínimo e a 36ºC não houve crescimento. Os isolados em estudo apresentaram poucas variações quanto ao aspecto das colônias. A esporulação ocorreu na presença de meio líquido (solução de KNO3 e água destilada esterilizada) e luz contínua. Os isolados de Phytophthora apresentaram esporângios papilados, ovóides e persistentes. Todos os isolados foram patogênicos à acácia-negra.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gomose; Etiologia; Doença de tronco; Acacia mearnsii Gummosis; Etiology; Stem disease; Acacia mearnsii.
Ano: 2003
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1606

Erwinia chrysanthemi: pectolytic bacterium causing soft rot outbreaks of arracacha in Brazil
Provedor de dados: 86
Autores: Henz,Gilmar Paulo; Reifschneider,Francisco José Becker; Duarte,Valmir.
The objetive of this work was to identify the pectolytic bacteria associated with soft rot of arracacha roots in Brazil. From 1998 to 2001, 227 isolates of Erwinia spp. were obtained from arracacha roots and identified by biochemical and physiological tests (pectolytic activity, lecithinase, a-methyl glucoside, phosphatase, erythromycin sensivity, growth at 37ºC). Of these isolates, 89.9% were identified as E. chrysanthemi (Ech), 9.7% as E. carotovora subsp. carotovora (Ecc) and 0.5% as E. carotovora subsp. atroseptica. The identity of seventeen out of twenty representative isolates of Ech and Ecc was confirmed by PCR (primers '149f', 'L1r', 'ADE1', 'ADE2').
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arracacia xanthorrhiza; Pectobacterium; Peruvian carrot; Disease; Etiology.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006001000015

FIRST REPORT OF Phytophthora nicotianae CAUSING ROOT ROT OF SOURSOP IN NORTHEASTERN BRAZIL
Provedor de dados: 94
Autores: COSTA,JAQUELINE FIGUEREDO DE OLIVEIRA; ASSUNÇÃO,IRAÍLDES PEREIRA; LIMA,GAUS SILVESTRE DE ANDRADE; MUNIZ,MARIA DE FÁTIMA SILVA; LUZ,EDNA DORA MARTINS NEWMAN.
ABSTRACT In 2013, soursop trees showing symptoms of root rot were observed in a field in Maceió, state of Alagoas, Brazil. It was isolated Phytophthora sp. which pathogenicity was confirmed in the host seedlings. Morphological and physiological characteristics in carrot-agar modified medium were consistent with Phytophthora nicotianae description. The PCR sequences products obtained with ITS1/ITS4 primers were compared to sequences of ribosomal DNA of Phytophthora species from the GenBank database observing high identity with other P. nicotianae isolates. A phylogenetic tree was performed to compare the isolate with other sequences of P. nicotianae, which clustering has been verified with 99% of bootstrap, confirming the morphophysiological studies. This...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Annona muricata; Phytophthora wilt; Oomycete; Etiology.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300405

Uveodermatological syndrome: Iiterature review
Provedor de dados: 195
Autores: Oliveira Cavalcanti, Guilherme Albuquerque de; Sampaio, Gabriela Rodrigues; Mian, Gláucia Frasnelli.
Objective: To review the main etiologic, epidemiologic, diagnostic and therapeutic aspects of the uveodermatologic syndrome. Data Sources: CAB and PUBMED databases were searched at the libraries of the Faculdade de Medicina and Faculdade de Medicina Veterinária da Universidade Federal de Minas Gerais and of the Universidade Federal de Lavras (School of Medicine and School of Veterinary Medicine of the Federal University of Minas Gerais and of the Federal University ofLavras), covering a retrospective period of35 years. Data Synthesis: The uveodermatologic syndrome is a systemic autoimmune disease affecting the melanocytes and similar to Vogt-Koyanagi-Harada Syndromein humans. The most prominent clinical signs are bilateral uveitis and glaucoma and skin and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Uveomeningoencephalitic sindrome; Etiology; Uveomeningoencephalitic sindrome; Chemotherapy; Uveitis; Glaucoma; Pigmentation disorders Síndrome uveomeningoencefálico; Etiología; Síndrome uveomeningoencefálico; Quimioterapia; Uveítis; Glaucoma; Trastornos de la pigmentación síndrome uveomeningoencefálica; Etiologia; Síndrome uveomeningoencefálica; Quimioterapia; Uveíte; Glaucoma; Transtornos da pigmentação.
Ano: 2005
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3130

Etiology symptomatology and epidemiology of sorghum ergot
Provedor de dados: 106
Autores: Tuanchai Boon-Long; Swai Nuangpai.
Palavras-chave: Sorghum; Ergot; Etiology; Symptomatology; Epidemiology; ข้าวฟ่าง; โรคเออร์ก็อท; การเกิดโรค.
Ano: 1985
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4580

New hosts of Oidiopsis haplophylli in the solanaceae family in Brazil
Provedor de dados: 102
Autores: Reis,Ailton; Boiteux,Leonardo S.; Paz-Lima,Milton L.; Silva,Patrícia P.; Lopes,Carlos A.
A powdery mildew disease was observed on leaves of Solanum gilo, S. melongena, S. tuberosum S. chacoense, Nicotiana rustica and N. tabacum in Brasília (Federal District), Brazil. Symptoms were mainly characterized by adaxial yellow areas in the leaves corresponding to white fungal colonies on the abaxial surface. Profuse sporulation was often observed. Light microscopy of the fungal colonies revealed the presence of conidiophores emerging through stomata with some having two or three branches. Ellipsoidal, subhyaline conidia were predominantly born singly and terminally on the conidiophore. All morphometrical characteristics agreed with those of Oidiopsis haplophylli (Syn. O. sicula). The teleomorph (Leveillula taurica) was not observed. Inoculation tests...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Etiology; Solanum gilo; S. melongena; S. tuberosum; S. chacoense; Nicotiana tabacum; N. rustica; Powdery mildew; Leveillula taurica.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000200017

FUNCTION IN BIOLOGY: ETIOLOGICAL AND ORGANIZATIONAL PERSPECTIVES
Provedor de dados: 37
Autores: NIÑO EL-HANI,CHARBEL; FREITAS NUNES-NETO,NEI.
In this paper, we argue for a taxonomy of approaches to function based on different epistemological perspectives assumed with regard to the treatment of this central concept in the life sciences. We distinguish between etiological and organizational perspectives on function, analyzing distinct theories: Wright's selectionist etiological approach and Godfrey-Smith's modern history theory of functions, in the case of the etiological perspective; and Cummins' functional analysis and Collier's interactivist approach to function, among organizational accounts. We explain differences and similarities between these theories and the broader perspectives on function, arguing for a particular way of understanding the consensus without unity in debates about...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Etiology; Explanation; Function; Organization; Teleology.
Ano: 2009
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2009000400007

An unusual gangrenous goat mastitis caused by Staphylococcus aureus, Clostridium perfringens and Escherichia coli co-infection
Provedor de dados: 45
Autores: Ribeiro,M.G.; Lara,G.H.B.; Bicudo,S.D.; Souza,A.V.G.; Salerno,T.; Siqueira,A.K.; Geraldo,J.S.
Relata-se, pela primeira vez no Brasil, a ocorrência de mastite gangrenosa caprina atípica causada pela co-infecção por Staphylococcus aureus, Clostridium perfringens e Escherichia coli em uma cabra da raça Boer, na segunda semana de lactação. Descrevem-se os achados clínicos, os procedimentos de diagnóstico microbiológico e a conduta terapêutica.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Goat; Gangrenous mastitis; Etiology; Co-infection.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000300037

An epidemiological study of reproductive failure in dairy herds from Goiânia
Provedor de dados: 45
Autores: Andrade,J.R.A.; Silva,N.; Silveira,W.; Teixeira,M.C.C.
An epidemiological study was carried out on 2823 cows from 34 dairy herds from Goiania in the State of Goias-Brazil during 2001 to 2002. The pregnancy rate was 47.8%. In 1473 non-pregnant cows, causes of reproductive failure problems were sought. The most prevalent uterine infection was endometritis (17.0%). Uterine disorders such as partial hypoplasia of the genital system (0.04%), macerate fetus (0.01%), adhesion of ovaries (0.04%), stillbirth (0.04%), retained placenta (0.01%), cervix inflammation (0.6%) and abortion (0.88%) also were found. Uterine swabs were collected aseptically for microbiological culture. Gram positives cocci (41.3%) and Gram negatives rods (52.6%) were found, and Staphylococcus aureus and Escherichia coli were the most prevalent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy herd; Endometritis; Etiology; Antimicrobial.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600002

Contribution to the study of diarrhea etiology in neonate dairy calves in São Paulo state, Brazil
Provedor de dados: 62
Autores: Langoni,Helio; Linhares,Antonio Carlos; Avila,Fernando Antonio de; Da Silva,Aristeu Vieira; Elias,Acacia Orieth.
Two hundred and three samples of feces of calves aged less than 30 days old from both sexes and from different properties and regions of the state of São Paulo were examined in the period of two years. Bacterial cultures were carried out in bovine 10% bloodagar and Levine mediums, incubated for up to 96 hours in aerobic conditions at 37°C, with the observation of colonies and morphological and biochemical study to characterize isolated microorganisms, or other tests, when pertinent. ELISA was performed for the Rotavirus research. The Cryptosporydium spp was surveyed and its parasitological examination was made. Results revealed the involvement of several enteropathogens alone and associated. Rotavirus was found in 51 (25.1%) samples, being 58.8% alone and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diarrhea; Calves; Etiology; Rotavirus; Cryptospodium.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000500004

Etiology of childhood community acquired pneumonia and its implications for vaccination
Provedor de dados: 55
Autores: Nascimento-Carvalho,Cristiana M.C.
Pneumonia is an important cause of morbidity and mortality among children throughout the world. Vaccines are available for some organisms, but they are underutilized and/or still in development. To evaluate the potential impact of vaccines, we review studies in which the etiology of childhood community-acquired pneumonia was recorded. In North America and Europe (9 studies), the etiology of pneumonia was established in 62% of studied children (range 43%-88%) by use of noninvasive specific methods for microbiologic diagnosis. The most often identified agents were S. pneumoniae (22%), respiratory syncytial virus (RSV) (20%), Haemophilus influenzae (7%), and Mycoplasma pneumoniae (15%). In Africa and South America (8 studies), bacteria were recovered from 56%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community-acquired pneumonia; Children; Etiology; Vaccine; S. pneumoniae; Respiratory syncytial virus.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000200007

Aspergillus niger – a possible new etiopathogenic agent in Tinea capitis? Presentation of two cases
Provedor de dados: 55
Autores: Chokoeva,Anastasiya Atanasova; Zisova,Liliya; Chorleva,Kristina; Tchernev,Georgi.
Abstract Tinea capitis is generally considered as the most frequent fungal infection in childhood, as it accounts for approximately 92% of all mycosis in children. The epidemiology of this disease varies widely ranging from antropophillic, zoophilic, and geophillic dermatophytes, as the main causative agent in different geographic areas, depending on several additional factors. Nowadays, the etiology is considered to vary with age, as well with gender, and general health condition. The former reported extraordinary Tinea capitis case reports have been replaced by original articles and researches dealing with progressively changing patterns in etiology and clinical manifestation of the disease. This fact is indicative that under the umbrella of the...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Tinea capitis; Children; Etiology; Molds.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000300015

[RETRACTED ARTICLE] Characteristics of liver fibrosis with different etiologies using a fully quantitative fibrosis assessment tool
Provedor de dados: 56
Autores: Wu,Q.; Zhao,X.; You,H.
This study aimed to test the diagnostic performance of a fully quantitative fibrosis assessment tool for liver fibrosis in patients with chronic hepatitis B (CHB), primary biliary cirrhosis (PBC) and non-alcoholic steatohepatitis (NASH). A total of 117 patients with liver fibrosis were included in this study, including 50 patients with CHB, 49 patients with PBC and 18 patients with NASH. All patients underwent liver biopsy (LB). Fibrosis stages were assessed by two experienced pathologists. Histopathological images of LB slices were processed by second harmonic generation (SHG)/two-photon excited fluorescence (TPEF) microscopy without staining, a system called qFibrosis (quantitative fibrosis) system. Altogether 101 quantitative features of the SHG/TPEF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Liver fibrosis; Quantitative assessment; Etiology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600703

Advances in biliary atresia: from patient care to research
Provedor de dados: 56
Autores: Santos,J.L.; Carvalho,E.; Bezerra,J.A.
Biliary atresia, the most common cause of liver transplantation in children, remains a challenge for clinicians and investigators. The development of new therapeutic options, besides the typical hepatoportoenterostomy, depends on a greater understanding of its pathogenesis and how it relates to the clinical phenotypes at diagnosis and the rate of disease progression. In this review, we present a perspective of how recent research has advanced the understanding of the disease and has improved clinical care protocols. Molecular and morphological analyses at diagnosis point to the potential contributions of polymorphism in the CFC1 and VEGF genes to the pathogenesis of the disease, and to an association between the degree of bile duct proliferation and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biliary atresia; Etiology; Prognosis; Therapeutics.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000600001

An experimental model of hemolysis-induced acute pancreatitis
Provedor de dados: 56
Autores: Saruc,M.; Yuceyar,H.; Turkel,N.; Ozutemiz,O.; Tuzcuoglu,I.; Yuce,G.; Huseyinov,A.
The literature indicates that acute pancreatitis is a complication of massive hemolysis with a prevalence of about 20%. We describe an experimental model of hemolysis-induced acute pancreatitis. Hemolytic anemia was induced in rats by a single ip injection of 60 mg/kg of 20 mg/ml acetylphenylhydrazine (APH) in 20% (v/v) ethanol on the first experimental day (day 0). One hundred and fifty Wistar albino rats weighing 180-200 g were divided into three groups of 50 animals each: groups 1, 2 and 3 were injected ip with APH, 20% ethanol, and physiological saline, respectively. Ten rats from each group were sacrificed on study days 1, 2, 3, 4 and 5. Serum amylase, lipase levels and pancreatic tissue tumor necrosis factor-alpha (TNF-alpha) and platelet-activating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemolysis; Pancreatitis model; Experimental pancreatitis; Etiology; Pathology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000700008

Relative frequency, clinical, neuroimaging, and postsurgical features of pediatric temporal lobe epilepsy
Provedor de dados: 56
Autores: Sales,L.V.; Velasco,T.R.; Funayama,S.; Ribeiro,L.T.; Andrade-Valença,L.P.; Neder,L.; Fernandes,R.M.F.; Araujo Jr.,D.; Machado,H.R.; Santos,A.C.; Leite,J.P.
We describe the relative frequency, clinical features, neuroimaging and pathological results, and outcome after pharmacological or surgical intervention for a series of pediatric patients with temporal lobe epilepsy (TLE) from an epilepsy center in Brazil. The medical records of children younger than 12 years with features strongly suggestive of TLE were reviewed from January 1999 to June 1999. Selected children were evaluated regarding clinical, EEG, and magnetic resonance imaging (MRI) investigation and divided into three groups according to MRI: group 1 (G1, N = 9), patients with hippocampal atrophy; group 2 (G2, N = 10), patients with normal MRI, and group 3 (G3, N = 12), patients with other specific temporal lesions. A review of 1732 records of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temporal lobe epilepsy; Children; Etiology; Prognosis; Developing countries.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001000013

Association among genetic predisposition, gut microbiota, and host immune response in the etiopathogenesis of inflammatory bowel disease
Provedor de dados: 56
Autores: Basso,P.J.; Fonseca,M.T.C.; Bonfá,G.; Alves,V.B.F.; Sales-Campos,H.; Nardini,V.; Cardoso,C.R.B.
Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), is a chronic disorder that affects thousands of people around the world. These diseases are characterized by exacerbated uncontrolled intestinal inflammation that leads to poor quality of life in affected patients. Although the exact cause of IBD still remains unknown, compelling evidence suggests that the interplay among immune deregulation, environmental factors, and genetic polymorphisms contributes to the multifactorial nature of the disease. Therefore, in this review we present classical and novel findings regarding IBD etiopathogenesis. Considering the genetic causes of the diseases, alterations in about 100 genes or allelic variants, most of them in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inflammatory bowel disease; Crohn's disease; Ulcerative colitis; Immune response; Etiology; Microbiota.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000900727

New hosts of Myrothecium spp. in Brazil and a preliminary in vitro assay of fungicides
Provedor de dados: 58
Autores: Quezado Duval,A.M.; Henz,G.P.; Paz-Lima,M.L.; Medeiros,A.R.; Miranda,B.E.C.; Pfenning,L.H.; Reis,A.
Myrothecium roridum and M. verrucaria are two plant pathogenic species causing foliar spots in a large number of cultivated plants. This paper aims to study the causal agents of foliar spots in vegetable crops (sweet pepper, tomato and cucumber), ornamental plants (Spathiphyllum wallisii, Solidago canadensis, Anthurium andreanum, Dieffenbachia amoena) and a solanaceous weed plant (Nicandra physaloides). Most of the isolates were identified as M. roridum; only the isolate 'Myr-02' from S. canadensis was identified as M. verrucaria. All the isolates were pathogenic to their original plant hosts and also to some other plants. Some fungicides were tested in vitro against an isolate of M. roridum and the mycelial growth recorded after seven days. Fungicides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myrothecium roridum; M. verrucaria; Vegetable crops; Ornamentals; Weeds; Etiology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100034