Substance in blood identified as biomarker for depression: study
WASHINGTON, July 30 (Xinhua) -- American scientists identified a substance in blood as a biomarker for depression and pointed to a new class of antidepressants that could be freer of side effects and faster-acting than those in current use.
People with depression have low blood levels of acetyl-L-carnitine (LAC), a nutritional supplement that is being sold in drugstores, according to a study published on Monday in the Proceedings of the National Academy of Sciences.