PMID- 25034946 OWN - NLM STAT- MEDLINE DCOM- 20150812 LR - 20211021 IS - 1873-2402 (Electronic) IS - 0006-3223 (Print) IS - 0006-3223 (Linking) VI - 77 IP - 2 DP - 2015 Jan 15 TI - Progressive reduction in cortical thickness as psychosis develops: a multisite longitudinal neuroimaging study of youth at elevated clinical risk. PG - 147-57 LID - S0006-3223(14)00414-4 [pii] LID - 10.1016/j.biopsych.2014.05.023 [doi] AB - BACKGROUND: Individuals at clinical high risk (CHR) who progress to fully psychotic symptoms have been observed to show a steeper rate of cortical gray matter reduction compared with individuals without symptomatic progression and with healthy control subjects. Whether such changes reflect processes associated with the pathophysiology of schizophrenia or exposure to antipsychotic drugs is unknown. METHODS: In this multisite study, 274 CHR cases, including 35 individuals who converted to psychosis, and 135 healthy comparison subjects were scanned with magnetic resonance imaging at baseline, 12-month follow-up, or the point of conversion for the subjects who developed fully psychotic symptoms. RESULTS: In a traveling subjects substudy, excellent reliability was observed for measures of cortical thickness and subcortical volumes. Controlling for multiple comparisons throughout the brain, CHR subjects who converted to psychosis showed a steeper rate of gray matter loss in the right superior frontal, middle frontal, and medial orbitofrontal cortical regions as well as a greater rate of expansion of the third ventricle compared with CHR subjects who did not convert to psychosis and healthy control subjects. Differential tissue loss was present in subjects who had not received antipsychotic medications during the interscan interval and was predicted by baseline levels of an aggregate measure of proinflammatory cytokines in plasma. CONCLUSIONS: These findings demonstrate that the brain changes are not explained by exposure to antipsychotic drugs but likely play a role in psychosis pathophysiology. Given that the cortical changes were more pronounced in subjects with briefer durations of prodromal symptoms, contributing factors may predominantly play a role in acute-onset forms of psychosis. CI - Copyright (c) 2015 Society of Biological Psychiatry. All rights reserved. FAU - Cannon, Tyrone D AU - Cannon TD AD - Departments of Psychology, Yale University, New Haven, Connecticut; Departments of Psychiatry, Yale University, New Haven, Connecticut. Electronic address: tyrone.cannon@yale.edu. FAU - Chung, Yoonho AU - Chung Y AD - Departments of Psychology, Yale University, New Haven, Connecticut. FAU - He, George AU - He G AD - Departments of Psychology, Yale University, New Haven, Connecticut. FAU - Sun, Daqiang AU - Sun D AD - Semel Institute for Neuroscience and Human Behavior and Department of Psychology, University of California, Los Angeles, Los Angeles, California. FAU - Jacobson, Aron AU - Jacobson A AD - Departments of Psychology, Yale University, New Haven, Connecticut. FAU - van Erp, Theo G M AU - van Erp TG AD - Department of Psychiatry, University of California, Irvine, Irvine, California. FAU - McEwen, Sarah AU - McEwen S AD - Semel Institute for Neuroscience and Human Behavior and Department of Psychology, University of California, Los Angeles, Los Angeles, California. FAU - Addington, Jean AU - Addington J AD - Department of Psychiatry (JA), University of Calgary, Calgary, Alberta, Canada. FAU - Bearden, Carrie E AU - Bearden CE AD - Semel Institute for Neuroscience and Human Behavior and Department of Psychology, University of California, Los Angeles, Los Angeles, California. FAU - Cadenhead, Kristin AU - Cadenhead K AD - Department of Psychiatry, University of California, San Diego, San Diego, California. FAU - Cornblatt, Barbara AU - Cornblatt B AD - Department of Psychiatry, Zucker Hillside Hospital, Glen Oaks, New York. FAU - Mathalon, Daniel H AU - Mathalon DH AD - Department of Psychiatry, University of California, San Francisco, San Francisco, California. FAU - McGlashan, Thomas AU - McGlashan T AD - Departments of Psychiatry, Yale University, New Haven, Connecticut. FAU - Perkins, Diana AU - Perkins D AD - Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. FAU - Jeffries, Clark AU - Jeffries C AD - Renaissance Computing Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. FAU - Seidman, Larry J AU - Seidman LJ AD - Department of Psychiatry, Beth Israel Deaconess Medical Center and Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts. FAU - Tsuang, Ming AU - Tsuang M AD - Department of Psychiatry, University of California, San Diego, San Diego, California. FAU - Walker, Elaine AU - Walker E AD - Department of Psychology, Emory University, Atlanta, Georgia. FAU - Woods, Scott W AU - Woods SW AD - Departments of Psychiatry, Yale University, New Haven, Connecticut. FAU - Heinssen, Robert AU - Heinssen R AD - Division of Treatment and Prevention Research, National Institute of Mental Health, Rockville, Maryland. CN - North American Prodrome Longitudinal Study Consortium LA - eng GR - MH081902/MH/NIMH NIH HHS/United States GR - MH081928/MH/NIMH NIH HHS/United States GR - P50 MH080272/MH/NIMH NIH HHS/United States GR - MH081984/MH/NIMH NIH HHS/United States GR - U01 MH081988/MH/NIMH NIH HHS/United States GR - U54 EB020403/EB/NIBIB NIH HHS/United States GR - P50 MH066286/MH/NIMH NIH HHS/United States GR - MH082022/MH/NIMH NIH HHS/United States GR - U01 MH066160/MH/NIMH NIH HHS/United States GR - MH081857/MH/NIMH NIH HHS/United States GR - U01 MH081928/MH/NIMH NIH HHS/United States GR - MH066160/MH/NIMH NIH HHS/United States GR - P30 ES010126/ES/NIEHS NIH HHS/United States GR - U01 MH082022/MH/NIMH NIH HHS/United States GR - U01 MH081984/MH/NIMH NIH HHS/United States GR - MH081988/MH/NIMH NIH HHS/United States GR - U01 MH081902/MH/NIMH NIH HHS/United States GR - U01 MH076989/MH/NIMH NIH HHS/United States GR - MH082004/MH/NIMH NIH HHS/United States GR - U01 MH081857/MH/NIMH NIH HHS/United States GR - U01 MH082004/MH/NIMH NIH HHS/United States GR - U01 MH081944/MH/NIMH NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140612 PL - United States TA - Biol Psychiatry JT - Biological psychiatry JID - 0213264 RN - 0 (Antipsychotic Agents) RN - 0 (Cytokines) SB - IM MH - Adolescent MH - Antipsychotic Agents/therapeutic use MH - Cerebral Cortex/drug effects/*pathology MH - Cytokines/blood MH - Disease Progression MH - Female MH - Follow-Up Studies MH - Humans MH - Longitudinal Studies MH - Magnetic Resonance Imaging MH - Male MH - Organ Size MH - Prodromal Symptoms MH - Psychotic Disorders/blood/drug therapy/*pathology MH - Reproducibility of Results MH - Risk MH - Young Adult PMC - PMC4264996 MID - NIHMS614962 OTO - NOTNLM OT - Inflammation OT - MRI OT - Prefrontal cortex OT - Prodromal OT - Psychosis OT - Schizophrenia COIS- Conflict of Interest All authors report no biomedical financial interests or potential conflicts of interest. EDAT- 2014/07/19 06:00 MHDA- 2015/08/13 06:00 PMCR- 2016/01/15 CRDT- 2014/07/19 06:00 PHST- 2014/03/06 00:00 [received] PHST- 2014/05/17 00:00 [revised] PHST- 2014/05/25 00:00 [accepted] PHST- 2014/07/19 06:00 [entrez] PHST- 2014/07/19 06:00 [pubmed] PHST- 2015/08/13 06:00 [medline] PHST- 2016/01/15 00:00 [pmc-release] AID - S0006-3223(14)00414-4 [pii] AID - 10.1016/j.biopsych.2014.05.023 [doi] PST - ppublish SO - Biol Psychiatry. 2015 Jan 15;77(2):147-57. doi: 10.1016/j.biopsych.2014.05.023. Epub 2014 Jun 12.