Dataset Information

The Ischemic Stroke Genetics Study (ISGS) Protocol.

ABSTRACT: The molecular basis for the genetic risk of ischemic stroke is likely to be multigenic and influenced by environmental factors. Several small case-control studies have suggested associations between ischemic stroke and polymorphisms of genes that code for coagulation cascade proteins and platelet receptors. Our aim is to investigate potential associations between hemostatic gene polymorphisms and ischemic stroke, with particular emphasis on detailed characterization of the phenotype.The Ischemic Stroke Genetic Study is a prospective, multicenter genetic association study in adults with recent first-ever ischemic stroke confirmed with computed tomography or magnetic resonance imaging. Patients are evaluated at academic medical centers in the United States and compared with sex- and age-matched controls. Stroke subtypes are determined by central blinded adjudication using standardized, validated mechanistic and syndromic classification systems. The panel of genes to be tested for polymorphisms includes beta-fibrinogen and platelet glycoprotein Ia, Iba, and IIb/IIIa. Immortalized cell lines are created to allow for time- and cost-efficient testing of additional candidate genes in the future.The study is designed to minimize survival bias and to allow for exploring associations between specific polymorphisms and individual subtypes of ischemic stroke. The data set will also permit the study of genetic determinants of stroke outcome. Having cell lines will permit testing of future candidate risk factor genes.

SUBMITTER: Meschia JF

PROVIDER: S-EPMC184375 | biostudies-literature | 2003 Jul

REPOSITORIES: biostudies-literature

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The Ischemic Stroke Genetics Study (ISGS) Protocol.

Meschia James F JF Brott Thomas G TG Brown Robert D RD Crook Richard J P RJ Frankel Michael M Hardy John J Merino José G JG Rich Stephen S SS Silliman Scott S Worrall Bradford Burke BB

BMC neurology 20030708

<h4>Background</h4>The molecular basis for the genetic risk of ischemic stroke is likely to be multigenic and influenced by environmental factors. Several small case-control studies have suggested associations between ischemic stroke and polymorphisms of genes that code for coagulation cascade proteins and platelet receptors. Our aim is to investigate potential associations between hemostatic gene polymorphisms and ischemic stroke, with particular emphasis on detailed characterization of the phe ...[more]

PMID: 12848902

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Project description:The third leading cause of death in the United States, stroke is an acute neurological event leading to death of neural tissues. Although the majority of strokes are ischemic strokes, meaning there is oxygen deprivation to the brain, almost 20% of strokes are hemorrhagic, resulting from bleeding into the brain. Stroke is a complex disorder and likely multigenic in nature, resulting from a combination of genetic and environmental factors. These well characterized risk factors that contribute to the incidence of stroke include hypertension, cardiac disease, sickle cell disease, hyperhomocysteinemia, family history of stroke and smoking. ISGS aim is to perform a prospective genetic association study of ischemic stroke focusing on the hemostatic system. ISGS is a 5-center case-control study of first-ever ischemic stroke cases and concurrent controls individually matched for age, sex and recruitment site. This data includes that from subjects both banked in the <a href="http://ccr.coriell.org/Sections/Collections/NINDS/?SsId=10"> NINDS repository</a> with biologicals publicly available, and those whose samples are not banked/not available.  This study utilized the <a href="./study.cgi?id=phs000005">NINDS Repository Cerebrovascular/Stroke Study</a>, and <a href="./study.cgi?id=phs000004">neurologically normal controls</a> from the sample population which are banked in the National Institute of Neurological Disorders and Stroke (NINDS Repository) collection for a first stage whole genome analysis.

Dataset Information

The Ischemic Stroke Genetics Study (ISGS) Protocol.

Publications

The Ischemic Stroke Genetics Study (ISGS) Protocol.

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