News tagged with toxin

Related topics: cells , bacteria , infectious diseases , bacterium

Ricin vaccine shows promise in pilot study

A recent study at the Tulane National Primate Research Center showed for the first time that an experimental vaccine could completely protect nonhuman primates exposed to deadly ricin toxin, a potential bioterrorism ...

Nov 06, 2014
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New weapon of the immune system discovered

Max Planck researchers have discovered a completely new way in which the immune system recognizes pathogens. The aryl hydrocarbon receptor has long been a focus of research for pharma-cologists and toxicologists, ...

Aug 14, 2014
popularity 4.4 / 5 (12) | comments 0

Toxin

A toxin (Greek: τοξικόν, toxikon) is a poisonous substance produced by living cells or organisms. (Although technically man is a living organism, man-made substances created by artificial processes usually aren't considered toxins by this definition.)

For a toxic substance not produced by living organisms, "toxicant" is the more appropriate term, and "toxics" is an acceptable plural.

Toxins can be small molecules, peptides, or proteins that are capable of causing disease on contact with or absorption by body tissues interacting with biological macromolecules such as enzymes or cellular receptors. Toxins vary greatly in their severity, ranging from usually minor and acute (as in a bee sting) to almost immediately deadly (as in botulinum toxin).

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