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Ghrelin, Produced During Stressful Situations Primes Brain for PTSD, Massachusetts Institute of Technology (MIT) Study



10/15/2013 6:40:45 AM

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About a dozen years ago, scientists discovered that a hormone called ghrelin enhances appetite. Dubbed the "hunger hormone," ghrelin was quickly targeted by drug companies seeking treatments for obesity—none of which have yet panned out. MIT neuroscientists have now discovered that ghrelin's role goes far beyond controlling hunger. The researchers found that ghrelin released during chronic stress makes the brain more vulnerable to traumatic events, suggesting that it may predispose people to posttraumatic stress disorder (PTSD).

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