Sentences with phrase «repairing radiation damage»

If the deep microbes spend as much on maintenance as surface microbes do, he says - repairing radiation damage to their DNA, keeping their membranes intact — they should have nothing left for the microbial prime directive: divide and multiply.

Not exact matches

This changes a lot of what scientists thought they knew about how water bears deal with radiation, as they were previously thought to have proteins that repaired damaged DNA, rather than proteins that halt damage altogether.

Laboratory experiments on animals indicate that as doses decrease, less and less damage escapes DNA - repair mechanisms, says Yoshihisa Matsumoto, a radiation biologist at the Tokyo Institute of Technology.

PARP inhibitors prevent cancer cells from repairing themselves after experiencing DNA damage (for example from chemotherapy or radiation).

Our body has a system to repair DNA damage (DNA repair mechanism), so why a normal cell turns into a cancer cell and why radiation exposure causes cancer have not been clarified.

A group of researchers at Osaka University found that if DNA damage response (DDR) does not work when DNA is damaged by radiation, proteins which should be removed remain instead, and a loss of genetic information can be incited, which, when repaired incorrectly, will lead to the tumor formation.

Mutations occur, for example, when cells copy their DNA incorrectly or fail to repair damage from chemicals or radiation.

Surprisingly, low - dose radiation takes longer for the body to repair than damage from high doses does.

The altered microbes bred easily, even in a radioactive chamber, by rapidly repairing DNA damaged by radiation.

Although its raison d'être remains elusive, the gene appears to play an important role in DNA repair: Mice lacking the protein Brca1 have trouble fixing DNA damage induced by radiation, for instance, and the protein clumps in the nucleus at sites where DNA is broken.

The radiation damage in the DNA may have been repaired when the sperm cells were combined with the eggs, says Andrew Wyrobek at Lawrence Berkeley National Laboratory in California.

They showed that basal cells were much more efficient at repairing DNA damage, allowing them to survive and reproduce following exposure to chemicals or radiation that damaged the DNA.

Experiments with mouse embryo support cells that express mutant DUB or pseudo-DUB proteins show an impaired immune response when infected with a virus and impaired DNA damage repair when exposed to ionizing radiation, further validating the need for complex's correct structure.

Biologists have generally assumed that the damage will be proportional to the dose, but in vitro studies have shown that cells can repair modest DNA damage caused by radiation — and that low - dose radiation might even protect the cell against future exposure.

So while it's true that organisms living deep in the Earth are not exposed to the high - energy radiation found when you travel between planets or more hypothetically between stars, the systems that cells have evolved to repair damage done by reactive oxygen species will be useful whether they arise from rocks or from cosmic rays.

The damage that it will repair is the one that is causal in senenscence of DNA pathway (such x-ray radiation causing senescence) and oncogenic activated senescence; but not of the type of replicative senescence (that's the domain of telomeres / telomerase / sub-telomeres and epigenetics) and cellular replication / proliferation.

I have a career - long interest in understanding the repair of DNA double - strand breaks, the most damaging lesion induced by radiation.

GSC resistance to radiation due to upregulation of pro-survival signaling and enhanced DNA damage repair capacity.

Such diseases are believed to be initiated by mutations and rearrangements of the DNA sequence.DNA damage generated by ionising radiation, simple alkylating agents or endogenously hydrolytic and oxidative processes is corrected by the base excision repair (BER) pathway.

It also has incredible benefits in healing and repairing damaged skin, including wound healing, and because it is also an antioxidant, it protects against UV radiation.

Since B12 helps repair DNA that is damaged by radiation or oxidation, it plays a role in protection against cancer.

Unique «Mitochondrial Antioxidant» Fights Premature Aging By Jim English Alpha - lipoic acid (ALA) is a unique, vitamin - like antioxidant that can combat radiation sickness, repair damaged livers, treat diabetes and diabetes - related conditions (polyneuropathy) and protect against oxidative processes that promote premature aging and degenerative diseas >> Read Article