{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T15:58:30Z","timestamp":1778687910204,"version":"3.51.4"},"reference-count":35,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2024,10,23]],"date-time":"2024-10-23T00:00:00Z","timestamp":1729641600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/100000005","name":"Department of Defense","doi-asserted-by":"publisher","award":["GRANT13362749"],"award-info":[{"award-number":["GRANT13362749"]}],"id":[{"id":"10.13039\/100000005","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Sciences","doi-asserted-by":"publisher","award":["5UL1TR000003"],"award-info":[{"award-number":["5UL1TR000003"]}],"id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01CA227485"],"award-info":[{"award-number":["R01CA227485"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01AG068577"],"award-info":[{"award-number":["R01AG068577"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,2,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Study Objectives<\/jats:title>\n                    <jats:p>The diagnosis of myalgic encephalomyelitis\/chronic fatigue syndrome (CFS) is based on a constellation of symptoms which center around fatigue. However, fatigue is commonly reported in the general population by people without CFS. Does the biology underlying fatigue in patients with CFS also drive fatigue experienced by individuals without CFS?<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We used UK Biobank actigraphy data to characterize differences in physical activity patterns and daily temperature rhythms between participants diagnosed with CFS compared to controls. We then tested if single nucleotide variants (SNVs) previously associated with CFS are also associated with the variation of these actigraphic CFS correlates and\/or subjective fatigue symptoms in the general population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Participants diagnosed with CFS (n\u2005=\u2005295) had significantly decreased overall movement (Cohen\u2019s d\u2005=\u20050.220, 95% CI of \u22120.335 to \u22120.106, p-value\u2005=\u20052.42\u2005\u00d7\u200510\u221215), lower activity amplitudes (Cohen\u2019s d\u2005=\u2005-0.377, 95% CI of \u22120.492 to \u22120.262, p-value\u2005=\u20051.74\u2005\u00d7\u200510\u22126), and lower wrist temperature amplitudes (Cohen\u2019s d\u2005=\u2005\u22120.173, 95% CI of -0.288 to -0.059, p-value\u2005=\u2005.002) compared to controls (n\u2005=\u200563,133). Of 30 tested SNVs associated in the literature with CFS, one was associated in the control population with subjective fatigue and one with actigraphic measurements (FDR\u2005&amp;lt;\u20050.05).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The genetic overlap of CFS risk with actigraphy and subjective fatigue phenotypes suggests that some biological mechanisms underlying pathologic fatigue in patients with CFS also underlie fatigue symptoms at a broader population level. Therefore, understanding the biology of fatigue in general may inform our understanding of CFS pathophysiology.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/sleep\/zsae243","type":"journal-article","created":{"date-parts":[[2024,10,15]],"date-time":"2024-10-15T23:24:26Z","timestamp":1729034666000},"source":"Crossref","is-referenced-by-count":2,"title":["Genetic variants associated with chronic fatigue syndrome predict population-level fatigue severity and actigraphic measurements"],"prefix":"10.1093","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9663-8233","authenticated-orcid":false,"given":"Patrick Z","family":"Liu","sequence":"first","affiliation":[{"name":"Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania , Philadelphia, PA ,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5935-0476","authenticated-orcid":false,"given":"David 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and Therapeutics, Perelman School of Medicine, University of Pennsylvania , Philadelphia, PA ,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ron C","family":"Anafi","sequence":"additional","affiliation":[{"name":"Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania , Philadelphia, PA ,","place":["USA"]},{"name":"Department of Medicine, Perelman School of Medicine, University of Pennsylvania , Philadelphia, PA ,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2024,10,23]]},"reference":[{"issue":"11","key":"2025102220020444200_CIT0001","doi-asserted-by":"publisher","first-page":"1101","DOI":"10.1001\/jama.2015.1346","article-title":"Beyond myalgic encephalomyelitis\/chronic fatigue syndrome: an IOM report on redefining an illness","volume":"313","author":"Clayton","year":"2015","journal-title":"J Am Med 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