Exploring genetic variants in obsessive compulsive disorder severity: A GWAS approach

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  • dc.contributor.author Alemany-Navarro, María
  • dc.contributor.author Cruz, Raquel
  • dc.contributor.author Real, Eva
  • dc.contributor.author Segalàs, Cinto
  • dc.contributor.author Bertolín, Sara
  • dc.contributor.author Baenas, Isabel
  • dc.contributor.author Domènech Salgado, Laura, 1989-
  • dc.contributor.author Rabionet, Raquel
  • dc.contributor.author Carracedo, Ángel
  • dc.contributor.author Menchón, José M.
  • dc.contributor.author Alonso, Pino
  • dc.date.accessioned 2020-04-15T12:45:15Z
  • dc.date.available 2020-04-15T12:45:15Z
  • dc.date.issued 2020
  • dc.description.abstract BACKGROUND: The severity of Obsessive-Compulsive Disorder (OCD) varies significantly among probands. No study has specifically investigated the genetic base of OCD severity. A previous study from our group found an OCD polygenic risk score to predict pre- and post-treatment severity. This study explores the genomic bases of OCD severity. METHODS: We administered the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) to 401 patients at their first visit to our clinic to measure their OCD severity. Genotyping data was collected by using the Infinium PsychArray-24 BeadChip kit (Illumina). We analyzed genetic association with OCD severity in a linear regression analysis at single-nucleotide polymorphism (SNP)- and gene-levels, this last also considering rare variants. Enrichment analyses were performed from gene-based analyses' results. RESULTS: No SNP reached significant association (p < 10-8) with the YBOCS. Six markers showed suggestive association (p < 10-5). The top SNP was an intergenic variant in chromosome 2: rs7578149 (p < 1.89 × 10-6), located in a region suggestively associated with MDD. Linkage disequilibrium was found for two clusters of SNPs located between SLC16A14 and SP110 in chromosome 2, all of them forming one peak of association. Enrichment analyses revealed OCD genes to be associated with porin activity (FDR = 0.01) and transmembrane structure (FDR = 0.04). LIMITATIONS: The size of the sample and the transversal nature of the severity measure are limitations of this study. CONCLUSION: This study contributes to better characterize OCD at an individual level, helping to know more about the prognosis of the disorder and develop more individualized treatments
  • dc.description.sponsorship This study was supported in part by the Carlos III Health Institute (PI16/00950, PI18/00856); FEDER funds (‘A way to build Europe’) and by the Agency for Management of University and Research Grants of the Catalan Government (2014SGR1672). MA was supported by the Secretariat for Universities and Research of the Ministry of Business and Knowledge of the Government of Catalonia. Grant co-funded by the European Social Fund (ESF) “ESF, Investing in your future” (2017 FI_B 00327). ER was supported by a Juan Rodés contract (JR14/00038)
  • dc.format.mimetype application/pdf
  • dc.identifier.citation Alemany-Navarro M, Cruz R, Real E, Segalàs C, Bertolín S, Baenas I et al. Exploring genetic variants in obsessive compulsive disorder severity: A GWAS approach. J Affect Disord. 2020 Apr 15; 267: 23-32. DOI: 10.1016/j.jad.2020.01.161
  • dc.identifier.doi http://dx.doi.org/10.1016/j.jad.2020.01.161
  • dc.identifier.issn 0165-0327
  • dc.identifier.uri http://hdl.handle.net/10230/44227
  • dc.language.iso eng
  • dc.publisher Elsevier
  • dc.relation.ispartof Journal of Affective Disorders. 2020 Apr 15;267:23-32
  • dc.rights © 2020 María Alemany-Navarro et al. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
  • dc.rights.accessRights info:eu-repo/semantics/openAccess
  • dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
  • dc.subject.other Neurosi obsessiva
  • dc.subject.other Genòmica
  • dc.title Exploring genetic variants in obsessive compulsive disorder severity: A GWAS approach
  • dc.type info:eu-repo/semantics/article
  • dc.type.version info:eu-repo/semantics/publishedVersion

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