Thursday, March 21, 2013

A drug that protects against radiation

U.S. scientists have developed drug that can protect against the harmful effects of radiation. The scientists hope that this drug will make radiotherapy safer for people with cancer, as well as be in the position to help in the event of a nuclear catastrophe. The drug as CBLB502 and so far only tested on animals known to substances that help include healthy cells that survive in the event of adverse effects of radiation. The researchers plan to test the results obtained in clinical trials. The study appears in the journal Science. Radiation kills living cells and promotes apoptosis (genetically directed process of cell self-destruction). In the course of radiotherapy, situated together with tumor cells by normal cells in the vicinity to be killed. For this reason, the physician should be recognized as precisely as possible to the tumor. Scientists conducted a study on mice and monkeys. Animals with the drug for 45 minutes and 24 hours before impact treated survived a lethal dose of radiation or lived longer than animals that are not administered the drug, the scientists. The results of animal studies have shown that the drug can protect healthy cells in the bone marrow CBLB502 and digestive system against the effects of radiation, and the scientists, the drug does not protect tumor cells remaining sensitive to the treatment.

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