UNITED STATES
Time
By Maia Szalavitz
April 30, 2013
Child abuse scars not just the brain and body, but, according to the latest research, but may leave its mark on genes as well.
The research, which was published in the Proceedings of the National Academy of Sciences, suggests that abused children who develop post-traumatic stress disorder (PTSD) may experience a biologically distinct form of the disorder from PTSD caused by other types of trauma later in life.
“The main aim of our study was to address the question of whether patients with same clinical diagnosis but different early environments have the same underlying biology,” says Divya Mehta, corresponding author of the study and a postdoctoral student at the Max Planck Institute of Psychiatry in Munich, Germany.
To find out, Mehta’s team studied blood cells from 169 people in Atlanta who were participating in the Grady Trauma Project. Most were in their late 30s to mid 40s and were African American; some had been abused as children but all had suffered at least two other significant traumatic events, such as being held at gun- or knife point, having a major car accident or being raped. On average, the participants experienced seven major traumas. Despite these events, however, the majority were resilient: 108 participants never developed PTSD.
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