نتایج جستجو برای: toxin genes
تعداد نتایج: 473001 فیلتر نتایج به سال:
Introduction: Shiga toxin-producing Escherichia coli (STEC) strains are one of the main causes of food poisoning and diseases such as hemorrhagic colitis and hemolytic uremic syndrome. Food contamination mainly occurs through food of animal origin such as meat and dairy products. The aim of this study was to investigate prevalence and distribution of virulence genes in Escherichia coli isolate...
استافیلوکوکوس ها اجرام باکتریایی، کروی و گرم مثبت به قطر 5/0 تا5/1 میکرون ، بی حرکت، فاقد اسپور، َهوازی و بی هوازی اختیاری و از خانواده میکروکوکاسه هستند . برخی از سویه های استافیلوکوکوس اورئوس فاکتورهای حدت متعددی شامل توکسین های سندروم شوک حرارتی (toxic shock syndrome toxin)، توکسین های اگزوفولیاتیو (exfoliative toxin) ،لوکوسیدین (lecukocidin) و .... را تولید و ترشح می کنند. مقاومت به آنتی بیو...
background: campylobacteriosis is one of the most commonbacterial intestinal disorders of humans in many countries.a wide range of domestic and wild bird species have been identifiedas natural reservoirs. objectives: the aim of this studywas to determine the campylobacter spp from pet birds andscreen the determined campylobacters for presence of virulencecytolethal distending toxin (cdt) genes....
Due to the genetic similarity of pathogenic Escherichia coli isolated from birds and pathotypes human origin, it is suggested that they have a common ancestor may exchange virulence-associated genes. This study aimed detect genes in E. strains Red-browed Amazon parrot (Amazona rhodocorytha) kept at conservation institute Brazil. High variability virulence was observed, since 12 profiles were fo...
Comprising a major clade of Anura, toads produce and secrete numerous toxins from both the parotoid glands behind their eyes dorsal skin. These toxins, made various proteins compounds, possess pharmacological potential to be repurposed benefit human health. However, detailed genetic regulation toad toxin production is still poorly understood. A recent publication uncovering genome representativ...
Clostridium difficile is a nosocomial pathogen that causes a serious toxin-mediated enteric disease in humans. Reducing C. difficile toxin production could significantly minimize its pathogenicity and improve disease outcomes in humans. This study investigated the efficacy of two, food-grade, plant-derived compounds, namely trans-cinnamaldehyde (TC) and carvacrol (CR) in reducing C. difficile t...
Fusarium head blight (FHB), mainly caused by graminearum, is one of the most devastating diseases wheat globally. FHB causes an extensive reduction in yield and reduces grain quality through its contamination with toxins such as deoxynivalenol (DON), T2 toxin, HT-2 nivalenol, zearalenone. This review provides overview updated progress genetic studies on resistance to FHB, emphasis sources gene/...
ARTICLE INFO ABSTRACT Article history: Received 22 February 2017 Accepted 23 April 2017 Available online 1 June 2017 The aim of this study was to investigate the prevalence of virulence and Cytolethal Distending Toxin (CDT) genes in the Campylobacter isolates from intestinal contents and gall bladders of broilers and, to evalute their cytotoxic effects on HeLa cell cultures. These genes play im...
Cochliobolus heterostrophus race T, causal agent of southern corn leaf blight, requires T-toxin (a family of C35 to C49 polyketides) for high virulence on T-cytoplasm maize. Production of T-toxin is controlled by two unlinked loci, Tox1A and Tox1B, carried on 1.2 Mb of DNA not found in race O, a mildly virulent form of the fungus that does not produce T-toxin, or in any other Cochliobolus spp. ...
nigella sativa (n. sativa), which belongs to the botanical family of ranunculaceae, is a widely used medicinal plant all over the world. n. sativa seeds and oil have been used in the treatment of different diseases. various studies on n. sativa have been carried out and a broad spectrum of its pharmacological actions have been established which include antioxidant, antidiabetic, anticancer, ant...
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