News tagged with dna damage

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'Cowcatcher' enzyme fixes single-strand DNA

Every time one of your cells divides, it exposes its most essential component to great danger: its genome, the sum total of all its genetic information, embodied in the double-stranded helix of DNA. Prior to cell division, ...

Jul 29, 2013
5 / 5 (4) 1 | with audio podcast

Chlamydia promotes gene mutations

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 ...

Jun 20, 2013
5 / 5 (5) 1 | with audio podcast

DNA damage: The dark side of respiration

(Phys.org) —Adventitious changes in cellular DNA can endanger the whole organism, as they may lead to life-threatening illnesses like cancer. Researchers at LMU now report how byproducts of respiration cause mispairing ...

May 22, 2013
4.5 / 5 (2) 0 | with audio podcast

Stem cells: Tuning the death sentence

In this week's issue of Science Signaling (22 January, 2013), Danen and colleagues of the Division of Toxicology of LACDR report novel insights into the question how stem cells decide to commit suicide when their DNA is dam ...

Jan 23, 2013
5 / 5 (1) 0

Some cells don't know when to stop

Certain mutated cells keep trying to replicate their DNA—with disastrous results—even after medications rob them of the raw materials to do so, according to new research from USC.

Nov 19, 2012
5 / 5 (5) 0 | with audio podcast