{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T01:09:20Z","timestamp":1792631360655,"version":"4.5.0"},"reference-count":47,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T00:00:00Z","timestamp":1664409600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002402","name":"Sun Yat-sen University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002402","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Immunol."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Telomere length (TL) has been recognized to be fundamental to the risk of autoimmune disorders. However,\u00a0the role of leukocyte TL in Graves\u2019 disease has not yet been fully elucidated. In the study, we exploited the two-sample Mendelian randomization (MR) design to evaluate the causal effect of leukocyte TL on the risk of Graves\u2019 disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Genome-wide association study (GWAS) data of leukocyte TL from the Singapore Chinese Health Study (SCHS) cohort and Graves\u2019 disease from Biobank Japan (BBJ, 2176 cases and 210,277 controls) were analyzed. Nine single nucleotide polymorphisms (SNPs) were selected as instrumental variables (IVs) for TL. We used the inverse variance weighted (IVW) approach as the main estimator and MR-Egger regression, weighted median, simple mode, and weighed mode methods as complementary estimators. Horizontal pleiotropy was assessed using the intercept from MR-Egger.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The analysis demonstrated that genetically predicted longer leukocyte TL was causally associated with a lower risk of Graves\u2019 disease using the IVW method (odds ratio [OR]: 1.64, 95% confidence interval [CI]: 1.23-2.17, <jats:italic>P<\/jats:italic>=2.27e-04, and other complementary MR approaches\u00a0achieved similar results. The intercept from the MR-Egger analysis provided no noticeable evidence of horizontal pleiotropy (<jats:italic>\u03b2<\/jats:italic>=0.02, <jats:italic>P<\/jats:italic>=0.641).\u00a0MR-PRESSO method reported no outliers (<jats:italic>P<\/jats:italic>=0.266).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our results provided evidence to support a genetic predisposition to shorter leukocyte TL with an increased risk of Graves\u2019 disease. Further studies are warranted to explore the mechanism underlying the association.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fimmu.2022.998102","type":"journal-article","created":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T17:04:21Z","timestamp":1664471061000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Genetic association of leukocyte telomere length with Graves\u2019 disease in Biobank Japan: A two-sample Mendelian randomization 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