نتایج جستجو برای: chemical toxin
تعداد نتایج: 427340 فیلتر نتایج به سال:
Aflatoxin B1 is a toxin produced by the fungus Aspergillus flavus which reduces development and function of organs in broilers. The aim this study was to determine effect adding binder from different bentonite feed contaminated with AFB1 on productivity, intestinal morphology, liver toxicity A total 60-day old chick male broilers were placed 12 pens. Each treatment consisted three replicates, e...
introduction: widespread medical usage of botulinum toxins has increased the need for the precise analysis of its biological activity. the aim of this study was production and crystallization of the botulinum type a toxins. methods: in this study, clostridium botulinum was grown and inoculated into the tripticase soya broth culture media, under anaerobic condition and toxin production was monit...
background anaerobic-inducible promoters are alternatives of chemical-inducible promoters for expression of recombinant proteins especially in conditions where chemical induction is not possible or anaerobic conditions are preferable. the nirb promoter is the promoter of the first gene of nir operon in escherichia coli, which encodes nadh-dependent nitrite reductase. this promoter is naturally ...
Botulinum toxin produced by Clostridium butolinum in one of the most fatal toxins known. Botulism is the name given to condition produced by this toxin. In recent years the diluted form of this toxin has been produced in injection form and used for treatment of hemifacial spasm and blepharospasm. This toxin blocks neuromuscular junction and inhibits acetylcholine release. In this article we rep...
Chemical Genetic Screening Identifies Critical Pathways in Anthrax Lethal Toxin-Induced Pathogenesis
t-2 toxin is the most poisonous trichothecene produced by fusarium species especially f.sporotrichioides . t-2 toxin is a biological contaminant in a number of agricultural commodities that can cause severe diseases among humans and animals and even lead to death. the aim of the current study is the analysis of t-2 mycotoxin in fusarium species by high-performance liquid chromatography (hplc) c...
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