研究揭示电离辐射损伤DNA并导致癌症的机制

Study reveals how ionising radiation damages DNA...

UK study reveals how ionizing radiation damages...

U.K. study reveals how ionizing radiation damages...

Health

Study reveals how ionising radiation damages DNA and causes cancer

For the first time, researchers from the Wellcome Trust Sanger Institute and their collaborators have been able to identify in human cancers two characteristic patterns of DNA damage caused by ionising radiation. These fingerprint patterns may now enable doctors to identify which tumours have been caused by radiation, and investigate if they should be treated differently. Published in Nature Communications today, the results will also help to explain how radiation can cause cancer. Ionising radiation, such as gamma rays, X-rays and radioactive particles can cause cancer by damaging DNA. However, how this happens, or how many tumours are caused by radiation damage has not been known. Previous

Medicalxpress.Com

World

Are we too scared of radiation?

It's more than five years since the earthquake and tsunami off the coast of Japan caused a huge leak of radioactive material into the world's oceans. Workers battled to prevent the Fukushima nuclear plant going into complete meltdown and radiation levels rose by a factor of tens of millions. However, a new report by Australian scientists has revealed that radiation in the Pacific Ocean is rapidly returning to normal and should be at its previous level by 2020. So what does this say about radiation and us? Time has stood still around the Fukushima nuclear plant, with homes and possessions abandoned - perhaps forever. Efforts to curb further leaks of radioactive water are ongoing: an underground

BBC News