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PTSD research: Distinct gene activity patterns from childhood abuse
Date:5/1/2013

Abuse during childhood is different. A study of adult civilians with PTSD (post-traumatic stress disorder) has shown that individuals with a history of childhood abuse have distinct, profound changes in gene activity patterns, compared to adults with PTSD but without a history of child abuse.

A team of researchers from Atlanta and Munich probed blood samples from 169 participants in the Grady Trauma Project, a study of more than 5000 Atlanta residents with high levels of exposure to violence, physical and sexual abuse and with high risk for civilian PTSD.

The results were published this week in Proceedings of the National Academy of Sciences, Early Edition.

"These are some of the most robust findings to date showing that different biological pathways may describe different subtypes of a psychiatric disorder, which appear similar at the level of symptoms but may be very different at the level of underlying biology," says Kerry Ressler, MD, PhD, professor of psychiatry and behavioral sciences at Emory University School of Medicine and Yerkes National Primate Research Center.

"As these pathways become better understood, we expect that distinctly different biological treatments would be implicated for therapy and recovery from PTSD based on the presence or absence of past child abuse."

The first author of the paper is Divya Mehta, PhD, a postdoctoral fellow in Munich. The senior author is Elisabeth Binder, MD, PhD, associate professor of psychiatry and behavioral sciences at Emory and group leader at the Max-Planck Institute of Psychiatry in Munich, Germany.

Ressler, a Howard Hughes Medical Institute Investigator, is co-director of the Grady Trauma Project, along with co-author Bekh Bradley, PhD, assistant professor of psychiatry and behavioral sciences at Emory and director of the Trauma Recovery Program at the Atlanta Veterans Affairs Medical Center.

Mehta and her colleagues examined changes
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Contact: Kathi Baker
kobaker@emory.edu
404-727-9371
Emory Health Sciences
Source:Eurekalert

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