your information resource in human molecular genetics
Identification of the first gene in posttraumatic stress disorder Posttraumatic stress disorder (PTSD) is a common chronic anxiety disorder that follows exposure to traumatic events. A large twin study of Vietnam veterans had demonstrated a significant genetic contribution to chronic PTSD. The underlying genes, however, have not been described. Researchers at the Hadassah Hebrew University Medical Center in Jerusalem now report that a dopamine transporter (DAT) gene may increase risk for PTSD. If replicated, findings suggest that genetically-determined changes in brain dopamine reactivity may contribute to the occurrence of PTSD among trauma survivors.
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