نتایج جستجو برای: استرپتوکوک بتا همولیتیک گروه gbs b
تعداد نتایج: 1019515 فیلتر نتایج به سال:
OBJECTIVES Placental antibody transfer is impaired in the context of HIV infection, which may render HIV-exposed, uninfected infants vulnerable to group B Streptococcus (GBS) disease. The GBS antibody response predominately consists of immunoglobulin G2 (IgG2) antibody. Thus we determined whether concentration and placental transfer of anti-GBS antibody subclasses was altered in HIV-infected co...
Group B Streptococcus (GBS) is a pathogen that has developed some strategies to resist host immune defenses. Because phagocytic killing is an important pathogenetic mechanism for bacteria, we investigated whether GBS induces apoptosis in murine macrophages. GBS type III strain COH31 r/s (GBS-III) first causes a defect in cell membrane permeability, then at 24 h, apoptosis. Apoptosis was confirm...
conclusions the determination of serotype and surface proteins of gbs strains distribution would be relevant for the future possible formulation of a gbs vaccine. patients and methods in this cross-sectional study, a total of 100 gbs strains isolated from 237 pregnant and 413 non-pregnant women were investigated for molecular capsular serotypes and surface protein genes using the multiplex p...
The aim of this study was to test the sensitivity and specificity of antigen detection for group B streptococcus (GBS) from the urine of neonates with early onset GBS sepsis. GBS sepsis was defined as early (< 48 hours) signs of sepsis in a neonate colonised with GBS. Neonates of 26 weeks' gestation or more, considered at risk for sepsis, were prospectively investigated for one year. Investigat...
background: streptococcus group b (gbs) or streptococcus agalactiae is typically associated with neonatal disease and infection in pregnant women. mortality of gbs sepsis in neonates is over 50% and is particularly high in preterm infants. gbs also causes invasive infection in pregnant and non-pregnant women including urinary tract infection (uti). penicillin-derived antibiotics remained as cho...
BACKGROUND Group B Streptococcus (GBS) is a cause of neonatal sepsis, pneumonia, and meningitis that can lead to neurological sequelae in infants less than 3 months of age. The GBS disease burden is not known in China, therefore it cannot receive major attention. The main objectives of this study are the evaluation of the incidence of neonatal GBS infection, GBS case-fatality ratio, its serotyp...
background: group b streptococcus (gbs) is the major cause of serious life threatening infections in neonates, pregnant women, and other adults with underlying diseases. capsular polysaccharide typing is a significant way for epidemiological studies of gbs, the pathogenesis, and other studies associated with gbs infections including surveillance programs and vaccine development in future. molec...
Many group B Streptococcus agalactiae strains and other pathogenic streptococci express a cell-associated peptidase that inactivates C5a (C5a-ase), the major neutrophil chemoattractant produced by activation of the complement cascade. Type III group B streptococci (GBS) can be classified genotypically into three restriction digest pattern types. Functional C5a-ase activity of GBS correlates wit...
OBJECTIVE In this study, we aim to investigate the distribution and antibiotic susceptibility of Group B Streptococcus (GBS) in infants younger than 90 days in Shenzhen, China. METHODS A retrospective study was conducted to evaluate GBS infection over an 4-year period. Starting from January 2010, we evaluated the laboratory data, clinical manifestations, treatment and outcomes of patients adm...
مقدمه: علت شیوع بالای اختلال تحمل گلوکز در بیماران هپاتیت مزمن B و C به درستی شناخته شده نیست، اما تغییر متابولیسم گلوکز در بیماران مبتلا به بیماری مزمن کبدی به خوبی نشان داده شده است و به نظر میرسد عفونت ویروس هپاتیت B و C نقش مهمی در پاتوژنز ایجاد دیابت ملیتوس در این بیماران داشته باشد. هدف از این مطالعه تعیین تغییرات قند خون، وضعیت مقاومت به انسولین و عملکرد سلول بتا در افراد مبتلا به هپاتی...
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