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Lookup NU author(s): Professor Matthew Prina
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© 2018, Springer Science+Business Media, LLC, part of Springer Nature. Some lines of evidence have indicated that immune dysregulation could play a role in the pathophysiology of obsessive-compulsive disorder (OCD). However, results have been inconsistent across studies. Thus, a systematic review and meta-analysis of studies measuring immune mediators in participants with OCD compared to healthy controls (HC) was conducted. The PubMed/MEDLINE, PsycINFO, and EMBASE electronic databases were systematically searched from inception through June 21, 2018. Sixteen studies met inclusion criteria comprising data from 1001 participants (538 with OCD and 463 were HCs). Levels of TNF-α, IL-6, IL-1β, IL-4, IL-10, and interferon-γ did not significantly differ between participants with OCD and healthy controls. In addition, the ex vivo production of TNF-α and IL-6 by isolated macrophages did not significantly differ between participants with OCD and HCs. Nevertheless, included studies have varied in methodological quality with the enrollment of samples that differed regarding medication status, the proper matching of OCD participants and HCs, age groups, and the presence of psychiatric comorbidities. In conclusion, an association between immune dysregulation and OCD remains unproven. Future studies should consider enrolling larger and more homogeneous samples with OCD.
Author(s): Cosco TD, Pillinger T, Emam H, Solmi M, Budhdeo S, Prina AM, Maes M, Stein DJ, Stubbs B, Carvalho AF
Publication type: Article
Publication status: Published
Journal: Molecular Neurobiology
Year: 2019
Volume: 56
Issue: 7
Pages: 4751-4759
Print publication date: 01/07/2019
Online publication date: 31/10/2018
Acceptance date: 24/10/2018
ISSN (print): 0893-7648
ISSN (electronic): 1559-1182
Publisher: Humana Press Inc.
URL: https://doi.org/10.1007/s12035-018-1409-x
DOI: 10.1007/s12035-018-1409-x
PubMed id: 30382535
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