Most living things have a suite of genes dedicated to repairing their DNA, limiting the rate at which their genomes change through time. But scientists at Vanderbilt and University of Wisconsin-Madison have discovered an ...
Evolution
May 21, 2019
3
158
Earth's atmosphere shields life on the ground from cosmic radiation that can damage DNA. Astronauts in space have no such protection, and that puts them at risk. An investigation on the International Space Station examines ...
Space Exploration
May 9, 2019
0
19
Explorers have dreamt for centuries of a Fountain of Youth, with healing waters that rejuvenate the old and extend life indefinitely.
Biotechnology
Apr 22, 2019
0
853
Each year at least 2 million Americans are infected with bacteria that cannot be treated with antibiotics, and at least 23,000 of these people die, according to the Centers for Disease Control.
Environment
Apr 8, 2019
0
37
Plants have developed a robust system that stops their cell cycle in hostile environments such as abnormally hot temperatures. In response, they direct their energy to survival rather than growth. A new study led by scientists ...
Plants & Animals
Apr 5, 2019
0
8
DNA damage occurs in all cellular organisms. In human cells, it can be caused by the body's normal metabolic activities, by environmental factors or by chemotherapy. During the crucial phase when cells replicate their genetic ...
Cell & Microbiology
Mar 11, 2019
0
6
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
Researchers from the University of Copenhagen have identified a specific mechanism that protects cells from natural DNA errors that could permanently damage the genetic code and lead to diseases such as cancer. The study ...
Cell & Microbiology
Feb 28, 2019
0
86
DNA damage is occurring in our cells all the time due to external agents, such as exposure to sun, or internal agents, like reactive oxygen species. To detect and repair DNA lesions, cells have evolved DNA damage response. ...
Cell & Microbiology
Feb 27, 2019
0
4
For more than a decade, scientists have worked to understand the connection between colibactin, a compound produced by certain strains of E. coli, and colorectal cancer, but have been hampered by their inability to isolate ...
Biochemistry
Feb 14, 2019
0
59
