Researchers at The University of Texas at Dallas (UTD), led by Dr. Lee Bulla, have characterized a protein produced by the soil bacterium Bacillus thuringiensis subsp. israelensis (Bti), which is highly toxic against Anoph ...
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Health Minister Marisol Touraine on Friday said France would apply the same bans to electronic cigarettes as it does to tobacco but would not completely outlaw the popular smokeless product.
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(AP)—Nestle SA, the world's biggest food and drink company, is boosting research to tackle the threat of ever-stronger strains of bacteria and germs in food manufacturing.
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New research in The Lancet reports that just four pathogens—rotavirus, Cryptosporidium, enterotoxigenic Escherichia coli producing heat-stable toxin, and Shigella—are causing most cases of moderate-to-severe diarrhoea among ...
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A new analysis has found a link between exposure to Agent Orange and lethal forms of prostate cancer among US Veterans. Published early online in Cancer, a peer-reviewed journal of the American Cancer Society, the findin ...
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New engineered spider protein could be the start of a new generation of anti-venom vaccines, potentially saving thousands of lives worldwide. The new protein, created from parts of a toxin from the reaper ...
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National Institutes of Health researchers used the popular anti-wrinkle agent Botox to discover a new and important role for a group of molecules that nerve cells use to quickly send messages. This novel ...
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Scientists have devised a method for delivering tumor cell-killing enzymes in a way that protects the enzyme until it can do its work inside the cell. In their study in mBio, the online open-access journal of the American Societ ...
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Most of us probably know at least one woman, and maybe quite a few more, with endometriosis. Despite the disease's prevalence, there is no consensus on the cause of it, the existing treatment options leave a lot to be desired, ...
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The cholera strain that transferred to Haiti in 2010 has multiple toxin gene mutations that may account for the severity of disease and is evolving to be more like an 1800s version of cholera, reports a new Northwestern Medicine ...
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(Medical Xpress)—Injections of botulism toxin A (often referred to as Botox) to reduce crows' feet leaves people feeling more depressed, according to new research by a Cardiff University psychologist.
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A new antibody-guided drug has shown promising activity in a phase I trial involving ovarian cancer patients with platinum drug-resistant disease, researchers from Dana-Farber Cancer Institute will report today at the annual ...
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UT Southwestern Medical Center researchers report that a pathogen annually blamed for an estimated 90 million cases of food-borne illness defeats a host's immune response by using a fat-snipping enzyme to ...
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(Medical Xpress)—Researchers from the University of Tokyo have uncovered the physical layout of a transmembrane protein that the tiny organism Archaea relies on to keep toxins out of its cells. The protein, ...
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(Medical Xpress)—Botulinum toxins are feared as a food poison and bioterror threat, and for good reason. It takes only minute amounts of these bacterial toxins to block signals from nerve cells that control ...
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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).
This text uses material from Wikipedia licensed under CC BY-SA
