8/8/2023 0 Comments Mutations chernobyl aftermathMorton and her team analysed thyroid tumors, normal thyroid tissue and blood from hundreds of survivors of the Chernobyl nuclear accident and compared them to those of unexposed patients. However, a detailed molecular understanding of these tumours has still been lacking, according to the team, and there are no established markers of radiation-induced cancers. This study considered radiation-induced papillary thyroid cancers (PTCs) – a type of thyroid cancer and one of the most frequent cancers observed after Chernobyl.Ī few years after the accident an increase in childhood (PTCs) was demonstrated by researchers in 1992. The second study, led by Lindsay Morton at the National Cancer Institute, examined the effects of radioactive fallout on survivors of the Chernobyl nuclear accident. 'This is one of the first studies to systematically evaluate alterations in human mutation rates in response to a man-made disaster, such as accidental radiation exposure.' 'Our study does not provide support for a trans-generational effect of ionizing radiation on germline DNA in humans,' they conclude. The authors did not find an increase in new germline mutations in this population, and the incidence of germline DNMs was comparable to that reported in the general population. The children were conceived after the accident and born between 19. To learn more, researchers analysed the genomes – genetic material – of 130 children and parents from families where one or both parents had experienced gonadal radiation exposure related to the Chernobyl accident. This is concerning, because there may be possible genetic effects for offspring of those who evacuated the Fukushima plant in Japan after the nuclear disaster there in 2011.Ĭhernobyl and Fukushima are the only two nuclear energy accidents rated at seven – the maximum severity – on the the International Atomic Energy Agency's measurement scale. What's more, no large comprehensive effort has explored germline de novo mutations (DNMs) in children born from parents exposed to moderately high amounts of ionizing radiation.ĭNMs are known to cause a large proportion of severe rare diseases of childhood. To date, there have been several studies examining risks of radiation exposure passed down the generations from events like Chernobyl, but the results have been inconclusive. Sviatlana Tsikhanouskaya April 26, 2021Įffects of radiation exposure from Chernobyl remain a topic of interest, according to the authors of the first study, led by Meredith Yeager at the Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockvill, US. Affected countries are still dealing with the aftermath, which could have been much smaller if authorities were transparent & accountable. 35 years ago, the Soviet government showed that human life is not a value for them. The volunteers began treating and sterilizing the dogs around the same time that construction began for the new safe confinement facility for the nuclear reactor that failed, and there was concern that the dogs living in the area may be a problem, Mousseau said.Today we commemorate victims of the Chernobyl tragedy. Researchers used preserved blood samples collected from more than 300 between 20 in locations with varying levels of contamination by the Chernobyl Dog Research Initiative as the organization has been providing veterinary care, according to the study. The radioactive contamination devastated wildlife populations in the region, but some survived and continued to breed. The dogs still living around the exclusion zone are likely descendants of pets left behind after residents surrounding the Chernobyl power plant fled the region in a hurry, leaving behind all their belongings, including their four-legged companions, Tim Mousseau, a professor of biological sciences at the University of South Carolina, told ABC News.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |