Toxin

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Related to Toxins: bacterial toxins

Toxin

Any poisonous substance a living thing produces as part of its metabolic or other natural process. That is, toxins themselves are not living things, but are produced by living things. Toxins are defined by the Biological Weapons Convention.
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Current immunological tests, such as the ELISA, cannot distinguish between the active and inactive form of Shiga toxin in processed food.
Botulinum Toxin by Geographic Region - US, Canada, Japan,
That same lack of rigidity, however, is what makes the toxins susceptible to the neutralizing effects of defensins.
This "nanosponge vaccine" enabled the immune systems of mice to block the adverse effects of the alpha-haemolysin toxin from MRSA-both within the bloodstream and on the skin.
The cartridges were washed with 6 mL 20% methanol and the toxins were eluted in 5 mL methanol.
In contrast, reports of naturally occurring disease-causing strains that do not produce toxin B (toxin A+B- variants) are extremely rare.
After all, botulinum toxin is the world's most potent natural toxin--millions of times more poisonous than cyanide.
The team also injected botulinum toxins into the rodents' whisker pads and found evidence that the toxins had traveled to the part of the brain stem that controls muscles used for facial expression.
Prevalence and genetic characterization of toxin A variant strains of Clostridium difficile among adults and children with diarrhea in France.
Thus, the increased responsiveness to toxin in persons with preexisting airway disease may be linked to their underlying airway inflammation at the time of toxin exposure.
Bacteria produce toxins under stressful conditions, as when they are too crowded, are denied food, or are fighting back against antibiotics.
A new sensing technique developed by USDA-ARS scientists is able to detect heat-resistant toxins in such products as ham, milk and eggs.