News tagged with toxin
Related topics: cells , bacteria , infectious diseases , bacterium
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 and is available under the GNU Free Documentation License.
A handful of pathogens are causing most diarrhoeal deaths and illness in children worldwide and should be targeted
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 ...
Diseases, Conditions, Syndromes May 13, 2013 | not rated yet | 0
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 ...
Medications May 09, 2013 | 5 / 5 (3) | 0 |
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 ...
Cancer May 13, 2013 | not rated yet | 0
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 ...
Medical research May 02, 2013 | 5 / 5 (1) | 0 |
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 ...
Cancer Apr 30, 2013 | not rated yet | 0
Pain, epigenetics and endometriosis: Research team wants to know how molecular tweaks affect which women hurt the most
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, ...
Medical research Apr 23, 2013 | not rated yet | 0