{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T14:57:00Z","timestamp":1787497020410,"version":"build-2736575974"},"reference-count":43,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T00:00:00Z","timestamp":1751328000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100010038","name":"Earmarked Fund for China Agriculture Research System","doi-asserted-by":"publisher","award":["CARS\u201014"],"award-info":[{"award-number":["CARS\u201014"]}],"id":[{"id":"10.13039\/501100010038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["acrjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthritis &amp; Rheumatology"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Our objective was to investigate the associations of polyunsaturated fatty acids (PUFAs) intake with rheumatoid arthritis (RA) risk, alongside the role of genetic predisposition and the potential mediating effects of circulating proteins.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Using data from 188,597 RA\u2010free participants in the UK Biobank, Cox proportional hazard models assessed the association of PUFAs intake with RA risk. The polygenic risk score for RA further allowed evaluation of genetic predisposition's modifying effects. Olink proteomics identified protein signatures associated with PUFAs intake and RA risk, with mediation analyses highlighting specific proteins as potential mediators.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Over a median follow\u2010up of 9.1 years, 1,640 RA cases were documented. Each one\u2010SD deviation increase in the intakes of stearidonic acid (SDA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) reduced RA risk by 9% to 10%. Among individuals with high genetic risk, omega\u20103 fatty acids (n\u20103 PUFAs) intake (including SDA, EPA, DPA, and DHA) significantly decreased RA risk, with antagonistic additive interactions against genetic predisposition. Olink\u2010based proteomic analysis displayed that RA risk and specific n\u20103 PUFAs intake (DHA, DPA, and SDA) were primarily associated with immune response and inflammation, cytokine interactions, signal transduction, cell adhesion and migration, and metabolic pathways. Mediation analyses identified 55 mediating proteins involved in immune regulation, inflammation, and cell homeostasis. Notably, CD80 and tumor necrosis factor receptor superfamily 4 emerged as vital mediators in the relationship between specific n\u20103 PUFAs intake and RA risk.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>These findings indicated the potential benefits of n\u20103 PUFAs intake in reducing RA risk and provided new insights into the mechanisms by which n\u20103 PUFAs influence RA risk.<\/jats:p>\n                    <jats:p>\n                      <jats:boxed-text content-type=\"graphic\" position=\"anchor\">\n                        <jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mimetype=\"image\/png\" position=\"anchor\" specific-use=\"enlarged-web-image\" xlink:href=\"graphic\/art43229-gra-0001-m.png\">\n                          <jats:alt-text>image<\/jats:alt-text>\n                        <\/jats:graphic>\n                      <\/jats:boxed-text>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/art.43229","type":"journal-article","created":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T01:20:14Z","timestamp":1747099214000},"page":"1475-1487","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Dietary Polyunsaturated Fatty Acid and the Risk of Rheumatoid Arthritis: Insights From Genetic Predisposition and Proteomics"],"prefix":"10.1002","volume":"77","author":[{"given":"Li","family":"Chen","sequence":"first","affiliation":[{"name":"Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Hubei Key Laboratory of Lipid Chemistry and Nutrition and Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops and Lipids Process Technology National and Local Joint Engineering Laboratory  Wuhan 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