Futurity.org – Inflammation chemical, quinolinic acid, linked to suicide

Scientists report the first proof that a chemical in the brain called glutamate is linked to suicidal behavior—findings that offer new hope for prevention.They found that suicide attempters had more than twice as much quinolinic acid in their spinal fluid as the healthy people, which indicated increased glutamate signaling between nerve cells. Those who reported the strongest desire to kill themselves also had the highest levels of the acid.