Children of people irradiated after the Chernobyl explosion do not have damaged DNA – Man – Science and technology

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There are no further DNA damage in children born to parents who were exposed to radiation during the Chernobyl nuclear power plant reactor explosion in 1986.

According to a study published at the end of April in the scientific journal Science, the station writes on its website BBC.

Study led by Professor Meredith Yeager of the National Institute for Cancer Research (NCI) in Maryland, researched the genes of children whose parents helped repair the damage in the most contaminated zone around the nuclear power plant, as well as children evacuated from Pripyat and other surrounding areas. In a sample of 130 people, all conceived after the Chernobyl disaster and born between 1987 and 2002, researchers analyzed their entire genomes.

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According to Stephen Chanock of NCI, who also participated in the study, the team of scientists had whole families available for the research, so they could compare the DNA of mother, father and child. “We’re not tracking what happened at the time of the uterus disaster, but we’re tracking something called a de novo mutation,” Chanock said. These mutations arise in sperm or eggs and lead to genetic changes in the offspring that can cause rare diseases.

However, scientists have not been able to find an increased number of genetic mutations in the descendants of the participants in the Chernobyl tragedy, which they say means that the above-average doses of harmful ionizing radiation to which their parents have been exposed have no effect on future children.

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“There are many people who were afraid to have children after the atomic bombings in Nagasaki and Hiroshima. People were also afraid of the accident at the Fukushima nuclear power plant because they thought their child would be affected by the radiation to which they were exposed. But if we show that it has no effect on their children, we may be able to alleviate these concerns, “said Professor Gerry Thomas of Imperial College London, who specializes in cancer research, for the BBC.

The accident at the Chernobyl nuclear power plant, located in the Kiev region of Ukraine, occurred on April 26, 1986. The explosion of the fourth unit of the power plant was the largest disaster in the history of nuclear energy.


Source: Pravda.sk – Veda a technika by vat.pravda.sk.

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