May 14 (UPI) -- Elevated levels of a certain brain biomarker may increase chances for suicide attempts in people who suffer from post-traumatic stress disorder, a study says.
People with both PTSD and suicidal thoughts have higher levels of metabotropic glutamatergic receptor 5 in their brains compared to those without suicidal thoughts, according to research published in Proceedings of the National Academy of Sciences. No elevated levels were found in PTSD sufferers with depression, whether that person had suicidal thoughts or not.