Journal
STROKE
Volume 40, Issue 10, Pages E550-E557Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/STROKEAHA.109.557462
Keywords
endothelium; ischemia; migraine; stroke in young adults
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Funding
- Office of Research and Development, Medical Research Service
- Research Enhancement Award Program in Stroke, the Geriatrics Research, Education, and Clinical Center, Department of Veterans Affairs
- Cooperative Agreement with the Cardiovascular Health Branch, Division of Adult and Community Health, Centers for Disease Control
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH Office of Research on Women's Health (ORWH) [R01 NS45012]
- National Institute on Aging (NIA) Pepper Center [P60 12583]
- University of Maryland General Clinical Research Center [M01 RR 165001]
- National Center for Research Resources (NCRR), NIH
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Background and Purpose-Migraine with aura is a risk factor for ischemic stroke, but the mechanism by which these disorders are associated remains unclear. Both disorders exhibit familial clustering, which may imply a genetic influence on migraine and stroke risk. Genes encoding for endothelial function are promising candidate genes for migraine and stroke susceptibility because of the importance of endothelial function in regulating vascular tone and cerebral blood flow. Methods-Using data from the Stroke Prevention in Young Women study, a population-based case-control study including 297 women aged 15 to 49 years with ischemic stroke and 422 women without stroke, we evaluated whether polymorphisms in genes regulating endothelial function, including endothelin-1 (EDN), endothelin receptor type B (EDNRB), and nitric oxide synthase-3 (NOS3), confer susceptibility to migraine and stroke. Results-EDN SNP rs1800542 and rs10478723 were associated with increased stroke susceptibility in whites (OR, 2.1; 95% CI, 1.1-4.2 and OR, 2.2; 95% CI, 1.1-4.4; P = 0.02 and 0.02, respectively), as were EDNRB SNP rs4885493 and rs10507875, (OR, 1.7; 95% CI, 1.1-2.7 and OR, 2.4; 95% CI, 1.4-4.3; P = 0.01 and 0.002, respectively). Only 1 of the tested SNP (NOS3 rs3918166) was associated with both migraine and stroke. Conclusions-In our study population, variants in EDN and EDNRB were associated with stroke susceptibility in white but not in black women. We found no evidence that these genes mediate the association between migraine and stroke. (Stroke. 2009;40:e550-e557.)
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