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Asymptomatic ILAS is a frequent finding on neuroimaging and shares many risk factors with atherosclerotic vascular disease. Whether asymptomatic ILAS is driven by genetic variants is not well-understood.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This study included 4960 participants from seven geographically diverse population-based cohorts (34% Whites, 16% African Americans, 22% Hispanics, 24% Asians, 5% native Ecuadorians). We defined asymptomatic ILAS as luminal stenosis &gt;50% in any large brain artery using time-of-flight magnetic resonance angiography.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      A genome-wide association study revealed one variant in\n                      <jats:italic toggle=\"yes\">RP11-552D8.1<\/jats:italic>\n                      (rs75615271; odds ratio (OR), 1.22 (1.11\u20131.33);\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20094.85\u00d710\n                      <jats:sup>\u22128<\/jats:sup>\n                      ) associated with global ILAS at genome-wide significance (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20095\u00d710\n                      <jats:sup>\u22128<\/jats:sup>\n                      ). Gene-based association analysis identified a gene-set enriched in chr1q32 region, including\n                      <jats:italic toggle=\"yes\">NEK2<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">LPGAT1<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">INTS7<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">DTL<\/jats:italic>\n                      , and\n                      <jats:italic toggle=\"yes\">TMEM206<\/jats:italic>\n                      , in global ILAS (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20091.34 \u00d710\n                      <jats:sup>\u22127<\/jats:sup>\n                      ) and anterior ILAS (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20091.77 \u00d710\n                      <jats:sup>\u22128<\/jats:sup>\n                      ).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion and conclusion:<\/jats:title>\n                    <jats:p>This study reveals one variant rs75615271 and a gene-set enriched in chr1q32 region associated with asymptomatic ILAS in a multi-population. Further functional studies may help elucidate the role that this variant plays in the pathophysiology of asymptomatic ILAS.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/17474930251374471","type":"journal-article","created":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T04:00:22Z","timestamp":1756094422000},"page":"515-525","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Multi-population genome-wide association study identifies multiple novel loci associated with asymptomatic intracranial large artery stenosis"],"prefix":"10.1177","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3197-6068","authenticated-orcid":false,"given":"Minghua","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3127-0973","authenticated-orcid":false,"given":"Farid","family":"Khasiyev","sequence":"additional","affiliation":[{"name":"Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA"},{"name":"Department of Neurology, University of Minnesota, Minneapolis, MN, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Spagnolo-Allende","sequence":"additional","affiliation":[{"name":"Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Danurys L","family":"Sanchez","sequence":"additional","affiliation":[{"name":"Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA"},{"name":"Taub Institute for Research on Alzheimer\u2019s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA"},{"name":"The Gertrude H. 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