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Mood Enzyme Decreased in Teen Suicide Victims

The activity of a brain enzyme that affects mood may be decreased in teen suicide victims, according to a recent study. Some 30,000 people in the U.S. die annually of suicide. Moreover, suicide is the second leading cause of death among teenagers. Although experts understand the psychological and psychosocial factors associated with teenage suicide, little is known about neurobiological markers. Protein kinase C (PKC), an enzyme in the brain, has been linked with mood disorders and is...