Abstract:
BACKGROUND AND PURPOSE:Although family studies have suggested a genetic influence on hemorrhagic stroke, the underlying genetic risk factors remain poorly defined. Coagulation factor XIII, which is involved in hemostasis, fibrinolysis, vascular remodeling, and tissue repair, represents a candidate gene for hemorrhagic stroke. We assessed the potential role of 3 factor XIII subunit A coding-sequence polymorphisms, along with a promoter polymorphism of plasminogen activator inhibitor-1 (PAI-1, which is also involved in fibrin stabilization and vascular remodeling), in young white women with hemorrhagic stroke. METHODS:Genotype analysis for factor XIII subunit A Val34Leu, Tyr204Phe, and Pro564Leu and for PAI-1 -675 4G/5G was performed in a population-based case-control study of 42 white women aged <45 years with nonfatal hemorrhagic stroke and 345 demographically similar control subjects. RESULTS:Compared with the respective homozygous wild-type genotypes, the Tyr204/Phe204 genotypes (age-adjusted odds ratio [OR] 2.9, 95% 95% CI 1.1 to 7.5) and the Leu564/Leu564 genotype (OR 4.3, 95% CI 1.4 to 13.7) were each associated with an increased risk of nonfatal hemorrhagic stroke. The risk estimate associated with the Phe204 variant was highest in women with subarachnoid hemorrhage and in nonsmokers, whereas the risk estimate of the Leu564/Leu564 genotype was highest in women with intracerebral hemorrhage and in smokers. Women who carried either the Phe204 allele or the Leu564/Leu564 genotype in combination with the PAI-1 5G/5G genotype had a nearly 20-fold increased risk of hemorrhagic stroke (OR 18.9, 95% CI 3.8 to 95.1). CONCLUSIONS:Our findings suggest that the Phe204 and Leu564 variants of coagulation factor XIII may be markers for genetic susceptibility to hemorrhagic stroke in women aged <45 years.
journal_name
Strokejournal_title
Strokeauthors
Reiner AP,Schwartz SM,Frank MB,Longstreth WT Jr,Hindorff LA,Teramura G,Rosendaal FR,Gaur LK,Psaty BM,Siscovick DSdoi
10.1161/hs1101.098150subject
Has Abstractpub_date
2001-11-01 00:00:00pages
2580-6issue
11eissn
0039-2499issn
1524-4628journal_volume
32pub_type
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