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| Registros recuperados: 13 | |
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| Munari,F.M.; De-Paris,F.; Salton,G.D.; Lora,P.S; Giovanella,P; Machado,A.B.M.P; Laybauer,L.S.; Oliveira,K.R.P.; Ferri,C; Silveira,J.L.S.; Laurino,C.C.F.C; Xavier,R.M.; Barth,A.L; Echeverrigaray,S; Laurino,J.P.. |
| Group B Streptococcus (GBS) is the most common cause of life-threatening infection in neonates. Guidelines from CDC recommend universal screening of pregnant women for rectovaginal GBS colonization. The objective of this study was to compare the performance of a combined enrichment/PCR based method targeting the atr gene in relation to culture using enrichment with selective broth medium (standard method) to identify the presence of GBS in pregnant women. Rectovaginal GBS samples from women at ≥36 weeks of pregnancy were obtained with a swab and analyzed by the two methods. A total of 89 samples were evaluated. The prevalence of positive results for GBS detection was considerable higher when assessed by the combined enrichment/PCR method than with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus agalactiae; Group B Streptococcus; Atr gene; Screening test; Accuracy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100029 |
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| Ferreira,Michele Berger; de-Paris,Fernanda; Paiva,Rodrigo Minuto; Nunes,Luciana de Souza. |
| ABSTRACT Group B Streptococcus is a causative agent of invasive neonatal infections. Maternal colonization by Streptococcus agalactiae is a necessary condition for vertical transmission, with efficient screening of pregnant women playing an essential role in the prevention of neonatal infections. In this study, we aimed to compare the performance of conventional polymerase chain reaction and real-time PCR assays as screening methods for S. agalactiae in pregnant women against the microbiological culture method considered as the gold-standard. A total of 130 samples from pregnant women were analyzed for sensitivity, specificity, positive predictive value, and negative predictive value. Statistical analysis was performed using the SPSS software, version... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus agalactiae; Pregnant women; Screening; Conventional PCR; Real-time PCR. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000600449 |
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| El Beitune,Patrícia; Duarte,Geraldo; Maffei,Cláudia Maria Leite. |
| We reviewed colonization by group B Streptococcus beta-haemolyticus of Lancefield (SGB), or Streptococcus agalactiae, in pregnant women, and the consequences of infection for the mother and newborn infant, including factors that influence the risk for anogenital colonization by SGB. We also examined the methods for diagnosis and prophylaxis of SGB to prevent early-onset invasive neonatal bacterial disease. At present, it is justifiable to adopt anal and vaginal SGB culture as part of differentiated obstetrical care in order to reduce early neonatal infection. The rates, risk factors of maternal and neonatal SGB colonization, as well as the incidence of neonatal disease, may vary in different communities and need to be thoroughly evaluated in each country... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pregnancy; Prognosis; Streptococcus agalactiae. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000400002 |
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| Pinto,Tatiana Castro Abreu; Costa,Natália Silva; Souza,Aline Rosa Vianna; Silva,Ligia Guedes da; Corrêa,Ana Beatriz de Almeida; Fernandes,Flavio Gimenis; Oliveira,Ivi Cristina Menezes; Mattos,Marcos Corrêa de; Rosado,Alexandre Soares; Benchetrit,Leslie Claude. |
| Streptococcus agalactiae is a common agent of clinical and subclinical bovine mastitis and an important cause of human infections, mainly among pregnant women, neonates and nonpregnant adults with underlying diseases. The present study describes the genetic and phenotypic diversity among 392 S. agalactiae human and bovine strains isolated between 1980 and 2006 in Brazil. The most prevalent serotypes were Ia, II, III and V and all the strains were susceptible to penicillin, vancomycin and levofloxacin. Resistance to clindamycin, chloramphenicol, erythromycin, rifampicin and tetracycline was observed. Among the erythromycin resistant strains, mefA/E, ermA and, mainly, ermB gene were detected, and a shift of prevalence from the macrolide resistance phenotype... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus agalactiae; Pulsed field gel electrophoresis; Epidemiology; Serotyping; Resistance profile. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000200003 |
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| Barros,Rosana Rocha; Kegele,Fabíola Cristina Oliveira; Paula,Geraldo Renato de; Brito,Monique Araújo de; Duarte,Rafael Silva. |
| Three isolates of Streptococcus agalactiae, recovered from residents of the metropolitan area of Rio de Janeiro with significant bacteriuria, were found to be resistant to levofloxacin. Determination of the minimal inhibitory concentration (MIC) confirmed one isolate as intermediate and two as resistant to levofloxacin. No reduction in levofloxacin MIC was observed with reserpine, indicating that resistance was not caused by an efflux mechanism. Typical point mutations were observed in the quinolone resistance determinant region of gyrA and parC. Other point mutations in parC generated novel altered codons: Ser80→Pro in the intermediate resistance isolate, and Gly128→Asp in a resistant isolate. Through molecular modeling, it was possible to observe that... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Fluoroquinolone resistance; Bacteriuria; Genetic diversity; Streptococcus agalactiae. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000500013 |
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| Simoes,Jose Antonio; Alves,Valeria Moraes Neder; Fracalanzza,Sergio Eduardo Longo; Camargo,Rodrigo Pauperio Soares de; Mathias,Lenir; Milanez,Helaine Maria Besteti Pires; Brolazo,Eliane Melo. |
| Colonization by Group B Streptococcus (GBS) is highly prevalent among pregnant women, with prevalence rates ranging between 4% and 30%. The infection may be transmitted vertically and may result in serious neonatal consequences. In the period from November 2003 to May 2004, a cross-sectional study was carried out among 316 parturients at the Jundiaí Teaching Hospital to establish the prevalence of genital GBS colonization, to identify the factors associated with colonization and the characteristic phenotypes of these streptococci. Samples from rectal and vaginal areas were collected for selective culture in Todd-Hewitt broth. Susceptibility to 7 antimicrobial agents was tested using the antibiotic diffusion disk technique, and the isolated strains were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus agalactiae; Neonatal infections; Antimicrobial resistance; Serum type; GBS; Pregnant woman. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000200019 |
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| Kent Ruiz,Amado; Peña,Joan; González,Dayaimi; Ponce,Pastor. |
| Few studies have been developed to evaluate the differences of bovine mastitis situation between hand and machine milking under the American tropic conditions. Twenty dairy herds were studied, 11 using hand milking (HM) and 9 machine milking (MM), from «San José de las Lajas» municipality, Mayabeque province. Between May 2009 and March 2012, samples from 182 cows (113 MM and 69 HM) were obtained meaning a 35.1% of total milking cows, resulting in 708 quarters sampled (435 MM and 273 HM). Samples were subjected to bacteriological diagnosis and somatic cell count (SCC). There were significant differences for the prevalence of blind quarters, subclinical mastitis and intramammary infections between hand milking, 1.1; 29.4 and 59.4% and machine milking, 3.8;... |
| Tipo: Journal article |
Palavras-chave: Bovine mastitis; Coagulase negative Staphylococcus; Corynebacterium bovis; Staphylococcus aureus; Streptococcus agalactiae. |
| Ano: 2014 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2014000100002 |
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| A., Jefferson Yunis; Delgado, Daniel Cala; Claudiano, Gustavo S.; Marcusso, Paulo F.; Oliveira, Marcos A.; Moraes, Flávio R.; Fernandes, João B. K.. |
| Os incas e as tribos amazônicas têm usado a planta “unha de gato” (Uncaria tomentosa), por suas propriedades imunoestimulantes no tratamento de diferentes moléstias. Os principais princípios ativos desta planta são alcaloides oxindólicos, derivados do ácido quinóvico e polifenóis de baixo peso molecular. Não existe informação sobre seus efeitos em peixes. Assim, o presente trabalho visou avaliar o efeito do tempo de suplementação dietética de ração contendo extrato de unha de gato sobre a resposta inflamatória em tilápias do Nilo (Oreochromis niloticus). Para tanto, 108 tilápias (40,8±3,2g; 10,5±1,5) foram utilizadas, distribuídas aleatoriamente em 6 caixas de 200l. Os peixes foram alimentados com ração suplementada com 150mg.kg-1do extrato durante três... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Imunoestimulante; Atividade imune; Hematologia; Tilápia; Streptococcus agalactiae. |
| Ano: 2013 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/20085 |
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| Registros recuperados: 13 | |
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