نتایج جستجو برای: ژن tcdb
تعداد نتایج: 16071 فیلتر نتایج به سال:
Of 175 Clostridium difficile strains isolated from patient hospitalized in one academic hospital in Warsaw between 2005-2006, one isolate belonged to PCR-ribotype 027/toxinotype III. This isolate had tcdA, tcdB, binary toxin genes (cdtA and cdtB), a 18-bp deletion and a 1 bp deletion at 117 position in the tcdC gene. Antimicrobial susceptibility tests revealed high level resistance to erythromy...
Quantitative fecal lactoferrin in toxin-positive and toxin-negative Clostridium difficile specimens.
Quantitative fecal lactoferrin was measured in 112 patients tested for toxigenic Clostridium difficile using glutamate dehydrogenase (GDH) and toxin immunoassays combined with tcdB PCR. Lactoferrin levels were higher in the GDH-positive/toxin-positive group (79 μg/ml) than in the GDH-positive/toxin-negative/PCR-positive (21 μg/ml) and the GDH-negative groups (13 μg/ml). Differences in fecal lac...
Background The p.E148Q variant in pyrin is present different populations at a frequency up to 29%[1], and has been associated with inflammatory diseases including vasculitis familial Mediterranean fever (FMF)[2,3]. pathogenicity of FMF unclear, highly debated the literature especially when observed cis or trans single, typically recessive, mutation. If it could modify expressivity pathogenic al...
Clinical and microbiologic characteristics of tcdA-negative variant clostridium difficile infections
BACKGROUND The tcdA-negative variant (A-B+) of Clostridium difficile is prevalent in East Asian countries. However, the risk factors and clinical characteristics of A-B+C. difficile infections (CDI) are not clearly documented. The objective of this study was to investigate these characteristics. METHODS From September 2008 through January 2010, the clinical characteristics, medication history...
BACKGROUND This study was conducted to evaluate the faecal occurrence and characterization of Clostridium difficile in clinically healthy dogs (N = 50) and in dogs with diarrhea (N = 20) in the Stockholm-Uppsala region of Sweden. FINDINGS Clostridium difficile was isolated from 2/50 healthy dogs and from 2/20 diarrheic dogs. Isolates from healthy dogs were negative for toxin A and B and for t...
The contribution of Clostridium difficile toxin A and B (TcdA and TcdB) to cellular intoxication has been studied extensively, but their impact on bacterial colonization remains unclear. By setting up 2- and 3-dimensional in vitro models of polarized gut epithelium, we investigated how C. difficile infection is affected by host cell polarity and whether TcdA and TcdB contribute to such events. ...
Background and Objectives Clostridium difficile is the leading cause of nosocomial diarrhea and pseudomembranous colitis. The prevalence of C. difficile infection differs in various geographical areas. The aim of this study was to determine the prevalence of C. difficile isolates and the prevalence of cdd3, tcdA and tcdB genes in beef samples in Kermanshah Province. Materials and Methods One ...
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