A new study sheds light on a little understood biological process called quiescence, which enables blood-forming stem cells to exist in a dormant or inactive state in which they are not growing or dividing. According to the ...
Jan 9, 2009
0
0
All cells are confronted with DNA damage, for example by exposure of the skin to UV rays, chemical byproducts of nerve cells consuming sugar, or immune cells destroying bacteria. If these DNA lesions are not - or badly - ...
Cell & Microbiology
Jun 13, 2017
0
183
Chlamydia trachomatis is a human pathogen that is the leading cause of bacterial sexually transmitted disease worldwide with more than 90 million new cases of genital infections occurring each year. About 70 percent of women ...
Cell & Microbiology
Jun 20, 2013
1
0
As David Cortez, Ph.D., tells the story of his research team's latest discovery, he shakes his head in disbelief.
Cell & Microbiology
Mar 1, 2019
0
33
Time-lapse imaging can make complicated processes easier to grasp—think of a stitched-together sequence of photos that chronicles the construction of a building. Now, scientists from the Department of Energy's Lawrence ...
Cell & Microbiology
Sep 2, 2015
3
62
Last year's Nobel Prize in Chemistry – shared by Stanford School of Medicine Professor Brian Kobilka and Robert Lefkowitz of Duke University – recognized groundbreaking research in G protein-coupled receptors (GPCRs). ...
General Physics
May 10, 2013
0
0
(PhysOrg.com) -- Scientists at the University of Liverpool have developed a new method to detect proteins associated with longevity, which helps further our understanding into why some animals live longer than others.
Biotechnology
Mar 29, 2012
0
0
When cells experience a high level of stress—for example, when they are exposed to too much UV light—ribosomes inside the cell collide and get into traffic jams. Now, Johns Hopkins scientists have found a protein that ...
Cell & Microbiology
Aug 5, 2020
0
128
Biological molecules such as proteins can contain hundreds of thousands of atoms, which makes it very difficult to understand their function in detail. Identifying the exact atomic structure of these complex molecules is ...
General Physics
Jul 18, 2014
0
0
It's well known that when the DNA in a cell is damaged, the cell responds by activating specific genes that help defend the integrity of its genome. But less well studied is the fact that the cell actually shuts down the ...
Cell & Microbiology
Feb 17, 2017
0
14
