Toxins

Some articles on toxins, toxin:

Microbial Toxins
... Microbial toxins are toxins produced by micro-organisms, including bacteria and fungi ... Microbial toxins promote infection and disease by directly damaging host tissues and by disabling the immune system ... Some bacterial toxins, such as Botulinum neurotoxins, are the most potent natural toxins known ...
Shellfish Association Of Great Britain - Objectives - Public Health & Shellfish
... Under certain conditions, some species of marine algae form blooms with can produce natural toxins ... like mussels and scallops, feeding on these microscopic algae may accumulate these toxins, which are a potential risk to human health ... European Commission's Shellfish Hygiene Directive, Member States must have algal toxin monitoring programs, which cover all the commercial shellfish production areas ...
Clostridium Tetani - Toxicity
... The genes for toxin production are encoded on a plasmid which is present in all toxigenic strains, and all strains that are capable of producing toxin produce identical toxins ... Tetanus toxin is generated in living bacteria, and is released when the bacteria lyse, such as during spore germination or vegetative growth ... and vegetative cell growth are required for toxin production ...
Clostridium Difficile Toxin B - Clinical Significance
... Many early studies have suggested that toxin A (also known as TcdA) is the major toxin protein causing antibiotic-associated diarrhea (AAD) however ... With this knowledge, Toxin B has been identified as the major virulence factor that causes the opening of tight junctions of intestinal epithelial cells, which enables toxin to ... The involvement of toxin A and—most importantly—toxin B is the key element that determines the disease caused by C ...
Scorpion Toxin - Structure
... The complete covalent structure of several such toxins has been deduced They comprise around 66 amino acid residues forming a three stranded anti-parallel beta sheet over which lies an alpha ... Four disulfide bridges cross-link the structure of the long-chain toxins whereas the short toxins contain only three ... shows similarity to both scorpion neurotoxins and anti-insect toxins ...