{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T13:08:54Z","timestamp":1792588134047,"version":"4.5.0"},"reference-count":18,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,8,21]],"date-time":"2024-08-21T00:00:00Z","timestamp":1724198400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001677","name":"Institut National de la Sant\u00e9 et de la Recherche M\u00e9dicale","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001677","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Sleep Research"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>In bipolar disorders, abnormalities of sleep patterns and of circadian rhythms of activity are observed during mood episodes, but also persist during euthymia. Shared vulnerabilities between mood disorders and abnormalities of sleep patterns and circadian rhythms of activity have been suggested. This exploratory study investigated the association between polygenic risk scores for bipolar disorder and major depressive disorder, actigraphy estimates of sleep patterns, and circadian rhythms of activity in a sample of 62 euthymic individuals with bipolar disorder. The polygenic risk score \u2013 bipolar disorder and polygenic risk score \u2013 major depressive disorder were calculated for three stringent thresholds of significance. Data reduction was applied to aggregate actigraphy measures into dimensions using principal component analysis. A higher polygenic risk score \u2013 major depressive disorder was associated with more fragmented sleep, while a higher polygenic risk score \u2013 bipolar disorder was associated with a later peak of circadian rhythms of activity. These results remained significant after adjustment for age, sex, bipolar disorder subtype, body mass index, current depressive symptoms, current tobacco use, and medications prescribed at inclusion, but not after correction for multiple testing. In conclusion, the genetic vulnerabilities to major depression and to bipolar disorder might be associated with different abnormalities of sleep patterns and circadian rhythms of activity. The results should be replicated in larger and independent samples.<\/jats:p>","DOI":"10.1111\/jsr.14307","type":"journal-article","created":{"date-parts":[[2024,8,21]],"date-time":"2024-08-21T21:39:07Z","timestamp":1724276347000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Polygenic risk scores for mood disorders and actigraphy estimates of sleep and circadian rhythms: A preliminary study in bipolar disorders"],"prefix":"10.1111","volume":"34","author":[{"given":"Vincent","family":"Hennion","sequence":"first","affiliation":[{"name":"Optimisation Th\u00e9rapeutique en Neuropsychopharmacologie, INSERM U1144 Universit\u00e9 Paris Cit\u00e9  Paris France"},{"name":"D\u00e9partement de Psychiatrie et de M\u00e9decine Addictologique AP\u2010HP Nord, GH Saint\u2010Louis\u2010Lariboisi\u00e8re\u2010Fernand\u2010Widal, DMU Neurosciences  Paris France"},{"name":"Universit\u00e9 Paris Cit\u00e9  Paris 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France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cynthia","family":"Marie\u2010Claire","sequence":"additional","affiliation":[{"name":"Optimisation Th\u00e9rapeutique en Neuropsychopharmacologie, INSERM U1144 Universit\u00e9 Paris Cit\u00e9  Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank","family":"Bellivier","sequence":"additional","affiliation":[{"name":"Optimisation Th\u00e9rapeutique en Neuropsychopharmacologie, INSERM U1144 Universit\u00e9 Paris Cit\u00e9  Paris France"},{"name":"D\u00e9partement de Psychiatrie et de M\u00e9decine Addictologique AP\u2010HP Nord, GH Saint\u2010Louis\u2010Lariboisi\u00e8re\u2010Fernand\u2010Widal, DMU Neurosciences  Paris France"},{"name":"Universit\u00e9 Paris Cit\u00e9  Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"St\u00e9phane","family":"Jamain","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Est Cr\u00e9teil, INSERM, IMRB, 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