Brain cells can self modify DNA
Recently, a landmark study on neural cells was published, in which researchers claimed to have discovered that brain neurons can modify their own DNA on their own. For a long time, the biomedical community has believed that human somatic DNA is fixed. According to Science, the discovery that "brain cells can modify their own DNA" has been evaluated as "possibly one of the major discoveries in the field of molecular biology in recent years". Researchers analyzed the donated brains of 6 healthy elderly individuals and 7 non secondary Alzheimer's disease patients and found that patients with Alzheimer's disease carry six times more APP variant gene varieties in their neuronal cells than the general population. Therefore, researchers speculate that the ability of brain cells to modify DNA on their own may contribute to the development of Alzheimer's disease.
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