MicroRNA Correlates of Childhood Maltreatment and Suicidality

The TSST is a standardized test to induce acute psychological stress in humans. Participants will abstain from caffeine for 12 hours and nicotine for 2 hours prior to the test. An IV butterfly catheter will be placed in an arm vein and flushed with saline. Participants will rest for 15 minutes. A 10ml baseline blood sample will be drawn. They will perform the TSST task and then have 10ml of blood drawn at 0, 15, 30, 60, and 90 minutes post-TSST.