Gene clue to post-traumatic stress disorder risk

April 02, 2012 16:38

Susceptibility to post-traumatic stress disorder could be partially determined by gene variants, says a study. A US team looked at the DNA from 200 members of 12 families who survived the 1988 Armenian earthquake. It found those who carried two gene variants which affect the production of serotonin - which affects mood and behaviour - were more likely to display symptoms of PTSD.

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