New biological pathway identified for post-traumatic stress disorder

High blood levels of a hormone produced in response to stress are linked to post-traumatic stress disorder in women but not men, a study has found. The hormone, called PACAP is known to act throughout the body and the brain, modulating central nervous system activity, metabolism, blood pressure, pain sensitivity and immune function. The identification of PACAP as an indicator of PTSD may lead to new diagnostic tools and eventually, to new treatments for anxiety disorders.

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