RT Journal Article T1 Epigenetic clocks in relapse after a first episode of schizophrenia A1 Segura, Alex-Gonzalez A1 Prohens, Llucia A1 Mezquida, Gisela A1 Amoretti, Silvia A1 Bioque, Miquel A1 Ribeiro, Maria A1 Gurriaran-Bas, Xaquin A1 Rementeria, Lide A1 Berge, Daniel A1 Rodriguez-Jimenez, Roberto A1 Roldan, Alexandra A1 Pomarol-Clotet, Edith A1 Ibanez, Angela A1 Usall, Judith A1 Garcia-Portilla, Maria Paz A1 Cuesta, Manuel J. A1 Parellada, Mara A1 Gonzalez-Pinto, Ana A1 Berrocoso, Esther A1 Bernardo, Miquel A1 Mas, Sergi K1 Leukocyte telomere length K1 Unaffected siblings K1 Age K1 Psychosis AB The main objective of the present study was to investigate the association between several epigenetic clocks, covering different aspects of aging, with schizophrenia relapse evaluated over a 3-year follow-up period in a cohort of ninety-one first-episode schizophrenia patients. Genome-wide DNA methylation was profiled and four epigenetic clocks, including epigenetic clocks of chronological age, mortality and telomere length were calculated. Patients that relapsed during the follow-up showed epigenetic acceleration of the telomere length clock (p=0.030). Shorter telomere length was associated with cognitive performance (working memory, r=0.31 p=0.015; verbal fluency, r=0.28 p=0.028), but no direct effect of cognitive function or symptom severity on relapse was detected. The results of the present study suggest that epigenetic age acceleration could be involved in the clinical course of schizophrenia and could be a useful marker of relapse when measured in remission stages. PB Nature portfolio PB Nature Publishing Group YR 2022 FD 2022-07-04 LK http://hdl.handle.net/10668/19562 UL http://hdl.handle.net/10668/19562 LA en NO Segura ÀG, Prohens L, Mezquida G, Amoretti S, Bioque M, Ribeiro M, et al. Epigenetic clocks in relapse after a first episode of schizophrenia. Schizophrenia (Heidelb). 2022 Jul 22;8(1):61 NO This study was supported by the Carlos III Healthcare Institute, the Spanish Ministry of Science, Innovation and Universities, the European Regional Development Fund (ERDF/FEDER) (PI08/0208, PI11/00325, PI14/00612); Centro de Investigación Biomé dica en Red de Salud Mental (CIBERSAM); CERCA Program; Catalan Government, the Secretariat of Universities and Research of the Department of Enterprise and Knowledge (2017SGR1562 and 2017SGR1355) and Institut de Neurociències, Universitat de Barcelona DS RISalud RD Apr 7, 2025