“…These findings are consistent with significantly decreased platelet 5-HT concentration found in suicidal depressed patients (Mann et al, 1992;Muck-Seler et al, 1996;Pivac et al, 1997;Rogenbach et al, 2007), in patients with a history of violent suicide attempts (Alvarez et al, 1999), in suicidal patients with a first episode of psychosis (Marcinko et al, 2007), in suicidal patients with schizophrenia (Braunig et al 1989), or schizoaffective disorder (Rao et al 1994). , 1997), and a smaller number of male patients in acute psychosis (Marcinko et al, 2007), argue that reduced platelet 5-HT concentration might serve as a predictor of suicidal behavior.…”