The idea that modern humans displaced Neanderthals because they were better protected against toxic smoke components is now under fire. An earlier study that put forward this suggestion has now been refuted by genetic research ...
Evolution
Nov 27, 2020
1
1016
Researchers at Columbia University Medical Center, working with their collaborators at the Hospital for Special Surgery, have created a fleet of molecular "robots" that can home in on specific human cells and mark them for ...
Bio & Medicine
Aug 7, 2013
0
0
For the first time in the world researchers at Tel Aviv University have encoded a toxin produced by bacteria into mRNA (messenger RNA) molecules and delivered these particles directly to cancer cells, causing the cells to ...
Bio & Medicine
Jul 4, 2023
1
280
Food poisoning caused by Bacillus cereus can lead to diarrhea which is probably caused by a 3-component toxin which is produced by this bacteria strain and which perforates and kills cells.
Cell & Microbiology
Jan 4, 2013
0
0
A family of potent protein neurotoxins have been discovered in bootlace worms, a University of Queensland researcher has found.
Plants & Animals
Mar 23, 2018
0
84
Botulinum neurotoxin A, better known as botox, is a highly dangerous toxin that causes paralysis in man that may prove fatal. In cosmetic applications the paralysing action of small doses is used in a specific manner for ...
Biochemistry
Nov 18, 2013
0
1
(PhysOrg.com) -- New structures of a botulism toxin interacting with a mimic of the nerve-cell protein it destroys suggest new ways to block this often-fatal interaction. Indeed, the mimic molecules have such high affinity ...
Cell & Microbiology
Jun 22, 2009
0
0
One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain how the aging process ...
Cell & Microbiology
Feb 3, 2012
0
0
Like all organisms, plants are associated with bacterial communities in which helpful and harmful bacteria compete for dominance. Among the weaponry of these warring bacteria are molecular syringes that some bacteria can ...
Biochemistry
Feb 5, 2018
0
139
The next time your Facebook stream is filled with cat videos, think about Myxococcus xanthus. The single-cell soil bacterium also uses a social network. But forget silly distractions. M. xanthus relies on its connections ...
Cell & Microbiology
Jul 19, 2013
0
0
