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| Registros recuperados: 34 | |
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| Nascimento,ER; Pereira,VLA; Nascimento,MGF; Barreto,ML. |
| Avian mycoplasmas occur in a variety of bird species. The most important mycoplasmas for chickens and turkeys are Mycoplasma gallisepticum (MG), M. synoviae (MS), and M. meleagridis. Besides, M. iowe (MI) is an emerging pathogen in turkeys, but of little concern for chickens. Mycoplasmas are bacteria that lack cell wall and belong to the class Mollicutes. Although they have been considered extracellular agents, scientists admit nowadays that some of them are obligatory intracellular microorganisms, whereas all other mycoplasmas are considered facultative intracellular organisms. Their pathogenic mechanism for disease include adherence to host target cells, mediation of apoptosis, innocent bystander damage to host cell due to intimate membrane contact,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Airsacculitis; Diagnosis; Mycoplasma; Mollicutes; Poultry. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100001 |
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| Batista,IA; Hoepers,PG; Silva,MFB; Nunes,PLF; Diniz,DCA; Freitas,AG; Cossi,MVC; Fonseca,BB. |
| SUMMARY Raising backyard birds is a common practice in Brazil, mainly in the countryside or suburban areas. However, the level of respiratory pathogens in these animals is unknown. We sampled two hundred chickens from 19 backyard flocks near commercial poultry farms and performed ELISA to Infectious Bronchitis Virus, avian Metapneumovirus, Mycoplasma synoviae and Mycoplasma gallisepticum. We evaluated the association between the predictive ability of ELISA and Hemagglutination-inhibition (HI)by comparing results from eight flocks positive to Mycoplasma gallisepticum on ELISA. Besides, we assessed essential biosecurity measures in the properties (multiple species birds, rodent control, hygienic conditions, and water quality for the bird`s consumption). We... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avian Metapneumovirus; ELISA; Hemagglutination-inhibition; Infectious Bronchitis Virus; Mycoplasma. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100324 |
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| The possibility that Ureaplasma urealyticum might play an important role in human infertility was first raised more than 20 years ago, but this association remains speculative. Considering the hypothesis that the pathogenicity of Ureaplasma urealyticum may depend on its serotypes, the clastogenic effects of different strains of Ureaplasma urealyticum, at concentrations of 103 CCU (color changing units)/ml, 104 CCU/ml and 105 CCU/ml, were evaluated in vitro in short-term cultures of human lymphocytes. Total or partial mitotic inhibition was produced by Ureaplasma urealyticum serotypes 2, 3 and 10 independent of the concentration (103 CCU/ml, 104 CCU/ml or 105 CCU/ml) of the microorganisms employed. In contrast, the clastogenic effects observed with... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Mycoplasma; Chromosome alterations; Ureaplasma urealyticum; Clastogenic effects. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000600008 |
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| Staats,Charley Christian; Boldo,Juliano; Broetto,Leonardo; Vainstein,Marilene; Schrank,Augusto. |
| Mycoplasmas are very fastidious in their nutritional requirements for in vitro growth and have limited biosynthetic capacity, a reflection of their reduced genomes. As a result, these bacteria depend upon external metabolites for nutrition and growth and have developed dependence on their hosts for survival and maintenance. Protein degradation and peptide importation play an important role in Mycoplasma spp. nutrition, and proteases can play a role in host adaptation and pathogenicity. Here, we present a general survey on the genes involved in protein degradation, secretion and importation, comparing all available Mollicute genomes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; Proteases; Minimal genomes; Secretion systems. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200009 |
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| Cano, Irene; Ryder, David; Webb, Steve C.; Jones, Brian J.; Brosnahan, Cara L.; Carrasco, Noelia; Bodinier, Barbara; Furones, Dolors; Pretto, Tobia; Carella, Francesca; Chollet, Bruno; Arzul, Isabelle; Cheslett, Deborah; Collins, Evelyn; Lohrmann, Karin B.; Valdivia, Ana L.; Ward, Georgia; Carballal, María J.; Villalba, Antonio; Marigómez, Ionan; Mortensen, Stein; Christison, Kevin; Kevin, Wakeman C.; Bustos, Eduardo; Christie, Lyndsay; Green, Matthew; Feist, Stephen W.. |
| Intracellular microcolonies of bacteria (IMC), in some cases developing large extracellular cysts (bacterial aggregates), infecting primarily gill and digestive gland, have been historically reported in a wide diversity of economically important mollusk species worldwide, sometimes associated with severe lesions and mass mortality events. As an effort to characterize those organisms, traditionally named as Rickettsia or Chlamydia-like organisms, 1950 specimens comprising 22 mollusk species were collected over 10 countries and after histology examination, a selection of 99 samples involving 20 species were subjected to 16S rRNA gene amplicon sequencing. Phylogenetic analysis showed Endozoicomonadaceae sequences in all the mollusk species analyzed.... |
| Tipo: Text |
Palavras-chave: Mollusk; OTU; Endozoicomonas; Chlamydiae; Mycoplasma; Francisella; Lucinoma; Ridgeia. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00658/77032/78322.pdf |
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| Mantovani,E.; Costa,I.P.; Gauditano,G; Bonoldi,V.L.N.; Higuchi,M.L.; Yoshinari,N.H.. |
| An emerging clinical entity that reproduces clinical manifestations similar to those observed in Lyme disease (LD) has been recently under discussion in Brazil. Due to etiological and laboratory particularities it is named LD-like syndrome or LD imitator syndrome. The condition is considered to be a zoonosis transmitted by ticks of the genus Amblyomma, possibly caused by interaction of multiple fastidious microorganisms originating a protean clinical picture, including neurological, osteoarticular and erythema migrans-like lesions. When peripheral blood of patients with LD-like syndrome is viewed under a dark-field microscope, mobile uncultivable spirochete-like bacteria are observed. PCR carried out with specific or conservative primers to recognize... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lyme disease-like syndrome; Tick-borne disease; Mycoplasma; Chlamydia; Spirochete; Lyme disease. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400002 |
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| Timenetsky,J.; Santos,L.M.; Buzinhani,M.; Mettifogo,E.. |
| A total of 301 cell cultures from 15 laboratories were monitored for mycoplasma (Mollicutes) using PCR and culture methodology. The infection was detected in the cell culture collection of 12 laboratories. PCR for Mollicutes detected these bacteria in 93 (30.9%) samples. Although the infection was confirmed by culture for 69 (22.9%) samples, PCR with generic primers did not detect the infection in five (5.4%). Mycoplasma species were identified with specific primers in 91 (30.2%) of the 98 samples (32.6%) considered to be infected. Mycoplasma hyorhinis was detected in 63.3% of the infected samples, M. arginini in 59.2%, Acholeplasma laidlawii in 20.4%, M. fermentans in 14.3%, M. orale in 11.2%, and M. salivarium in 8.2%. Sixty (61.2%) samples were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; Cell culture; Multiple infection; Mycoplasma detection. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000700009 |
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| Arraes,Fabricio B.M.; Carvalho,Maria José A. de; Maranhão,Andrea Q.; Brígido,Marcelo M.; Pedrosa,Fábio O.; Felipe,Maria Sueli S.. |
| The annotation and comparative analyses of the genomes of Mycoplasma synoviae and Mycoplasma hyopneumonie, as well as of other Mollicutes (a group of bacteria devoid of a rigid cell wall), has set the grounds for a global understanding of their metabolism and infection mechanisms. According to the annotation data, M. synoviae and M. hyopneumoniae are able to perform glycolytic metabolism, but do not possess the enzymatic machinery for citrate and glyoxylate cycles, gluconeogenesis and the pentose phosphate pathway. Both can synthesize ATP by lactic fermentation, but only M. synoviae can convert acetaldehyde to acetate. Also, our genome analysis revealed that M. synoviae and M. hyopneumoniae are not expected to synthesize polysaccharides, but they can take... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mollicutes; Mycoplasma; Metabolism; Comparative genomics. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200004 |
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| Otto, Lars. |
| We present an economic decision support model, based on a Bayesian network, for Mycoplasma infection in slaughter swine production. The model describes the various risk factors for Mycoplasma infection and their interactions. This leads to a stochastic determination of the consequences of productivity factors, and this again results in stochastic economic consequences when changing the risk factors or engaging in control arrangements. We use the model to calculate how estimated prevalence and level of Mycoplasma changes when we gather evidence from various veterinarian examinations, and we show how this influences the distribution of the economic results of a change in strategy to fight Mycoplasma. One result is that the profitability in fighting... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Decision support system; Bayesian network; Pig; Mycoplasma; Livestock Production/Industries; C11; D81; Q12. |
| Ano: 2005 |
URL: http://purl.umn.edu/24458 |
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| Gavião Prado, Luan; Vieira Sene, Rafael; Camargo de Medeiros, Elisângela; Maioli do Nascimento, Letícia; Beatriz França de Faria, Ana. |
| Hemoparasitosis, diseases that may cause clinical and hematological complications, are considered a great challenge to practitioners and clinical pathologists. Its high incidence in all Brazilian territory and the difficulty for a precise diagnosis can lead in most cases to a therapeutic diagnosis. Anaplasma platys, Babesia canis vogeli, Ehrlichia canis, Mycoplasma haemocanis and with a lower frequency and clinical relevance, Anaplasma phagocytophilum are the main etiological agents affecting dogs in Brazil. The climatic conditions found in several Brazilian areas, such as high rain and temperature levels, favor the arthropods vectors life cycles. This subject became an important challenge to both veterinarians and pet owners. These etiological agents... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemoparasite; Anaplasma; Babesia; Mycoplasma; Ehrlichia; Hemoparasitose; Anaplasma; Babesia; Mycoplasma; Ehrlichia. |
| Ano: 2019 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37999 |
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| Borges,Clayton Luiz; Parente,Juliana Alves; Pereira,Maristela; Soares,Célia Maria de Almeida. |
| Mycoplasmas are the smallest known prokaryotes with self-replication ability. They are obligate parasites, taking up many molecules of their hosts and acting as pathogens in men, animals, birds and plants. Mycoplasma hyopneumoniae is the infective agent of swine mycoplasmosis and Mycoplasma synoviae is responsible for subclinical upper respiratory infections that may result in airsacculitis and synovitis in chickens and turkeys. These highly infectious organisms present a worldwide distribution and are responsible for major economic problems. Proteins of the GTPase superfamily occur in all domains of life, regulating functions such as protein synthesis, cell cycle and differentiation. Despite their functional diversity, all GTPases are believed to have... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; GTPase superfamily; Genome. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200007 |
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| Silva,Jamile R.; Ferreira,Lício F.A.A.; Oliveira,Percíllia V.S.; Nunes,Ivanéia V.; Pereira,Ítalo S.; Timenetsky,Jorge; Marques,Lucas M.; Figueiredo,Tiana B.; Silva,Robson A.A.. |
| Ureaplasma diversum is an opportunistic pathogen associated with uterine inflammation, impaired embryo implantation, infertility, abortions, premature birth of calves and neonatal pneumonia in cattle. It has been suggested that the intra-uterine infection by Ureaplasma diversum can cause vascular changes that hinder the success of pregnancy. Thus, the aim of this study was to evaluate the changes of intrauterine site of A/J mice in estrus or proestrus phase inoculated with Ureaplasma diversum. The infection was monitored at 24, 48 and 72 hours by the PCR methodology to detect the Ureaplasma in the inoculation site and the profile of circulating blood cells. Morphological changes, intensity of inflammation and the production of cytokines were compared. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; Uterus; Ureaplasma; Mice. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200643 |
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| Registros recuperados: 34 | |
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