{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T14:41:22Z","timestamp":1778078482497,"version":"3.51.4"},"reference-count":45,"publisher":"Oxford University Press (OUP)","issue":"12","license":[{"start":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T00:00:00Z","timestamp":1759968000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"name":"Chengdu Municipal Bureau of Science and Technology","award":["2024-YF05-02022-SN"],"award-info":[{"award-number":["2024-YF05-02022-SN"]}]},{"name":"Chengdu Medical Research Project","award":["2022013"],"award-info":[{"award-number":["2022013"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,11,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Vestibular dysfunction represents a significant public health burden, and the association with the endogenous antioxidant bilirubin remains controversial. This study aimed to systematically evaluate the association and potential causal mechanisms between serum total bilirubin (STB) and vestibular dysfunction by integrating observational research with causal inference methods.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Cross-sectional data from the National Health and Nutrition Examination Survey (1999-2004) were analyzed using weighted multivariable logistic regression and restricted cubic splines to examine the association between STB quartiles and vestibular dysfunction (assessed by Romberg test failure). Bidirectional two-sample Mendelian randomization (MR) was further employed to assess causality using genetic instruments.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 4500 participants, a multivariable-adjusted model revealed a significant inverse association between moderate STB concentrations (Q2: 10.27-11.97 \u03bcmol\/L) and vestibular dysfunction (OR\u2009=\u20090.71, p\u2009=\u2009.018). A nonlinear dose\u2013response relationship was observed (p-nonlinear\u2009=\u2009.002). Age significantly modified the effect, with protection in participants &amp;lt;60 years (OR\u2009=\u20090.97, p\u2009=\u2009.006) but risk in those \u226560 (OR\u2009=\u20091.03, p\u2009=\u2009.016). Genetically elevated direct bilirubin reduced overall vestibular dysfunction risk (OR\u2009=\u20090.84, p\u2009&amp;lt;\u2009.001), most notably for M\u00e9ni\u00e8re\u2019s disease (OR\u2009=\u20090.76, p\u2009=\u2009.007). Sensitivity analyses supported result robustness (no heterogeneity or pleiotropy detected).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Moderate STB concentrations may reduce vestibular dysfunction risk. This protective effect is causally mediated by bilirubin in individuals under 60, suggesting bilirubin homeostasis could be a novel target for prevention. The reversed association in older adults warrants further investigation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/gerona\/glaf224","type":"journal-article","created":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T11:42:20Z","timestamp":1759837340000},"source":"Crossref","is-referenced-by-count":1,"title":["The association between bilirubin and vestibular dysfunction in the United States in middle-aged and older people insights from NHANES 1999-2004 and Mendelian randomization analysis"],"prefix":"10.1093","volume":"80","author":[{"given":"Jing","family":"Luo","sequence":"first","affiliation":[{"name":"Department of Otolaryngology head and neck surgery, The Third People\u2019s Hospital of Chengdu , Chengdu,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hengkang","family":"He","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology head and neck surgery, The Third People\u2019s Hospital of Chengdu , 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