In this week’s Medical Discovery News by UTMB’s David Niesel and Norbert Herzog: While strongly linked to depression, there are not always clear warning signs that someone is about to commit suicide. Unlike a viral or bacterial infection where there can be a number of signs like changes in body temperature, white blood cells, and signaling molecules, there is no simple clinical test to diagnose suicidal tendencies. Now, new research is working toward a blood test using biomarkers that may identify those likely to commit suicide. The column also appears in the Abilene Reporter-News.