Washington: Scientists at the University of Michigan have discovered new evidence that our genes play a vital role in determining our susceptibility to depression.The new findings have challenged a 2009 study that questioned the genetic link.Previously, scientists had discovered a connection between a gene that regulates the neurotransmitter serotonin and an individual`s ability to rebound from serious emotional trauma, such as childhood physical or sexual abuse.Srijan Sen, of the University of Michigan Medical School, and colleagues examined 54 studies dating from 2001 to 2010 and encompassing nearly 41,000 participants, before reaching a conclusion."When we included all the relevant studies, we found that an individual`s genetic make-up does make a difference in how he or she responds to stress," said Sen.
Only a marginal relationship was found in those who had undergone stressful life events.The findings were published in the journal Archives of General Psychiatry. (ANI)
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