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Background and purposeCarriers of the 460Trp allele of the alpha-adducin gene (ADD1) show higher rates of sodium reabsorption compared with homozygous carriers of the Gly460 allele and were found to have an increased risk of hypertension and cardiovascular disease. We studied the association between the Gly460Trp polymorphism and atherosclerosis, cardiovascular disease, and cerebrovascular disease.MethodsIntima-media thickness of the common carotid artery, as well as incident stroke and myocardial infarction, were studied within 6471 subjects of the Rotterdam Study. Within 1018 subjects of the Rotterdam Scan Study, prevalent silent brain infarcts and cerebral white matter lesions were studied. Subjects were grouped into 460Trp carriers (variant carriers) and homozygous carriers of the Gly460 allele (reference).ResultsIntima-media thickness of the common carotid artery was 0.80 mm in variant carriers compared with 0.79 mm in the reference group (P=0.04). Variant carriers had an increased risk of any stroke (hazard ratio [HR], 1.22; 95% CI, 1.02 to 1.45), ischemic stroke (HR, 1.29; 95% CI, 1.02 to 1.63), hemorrhagic stroke (HR, 1.07; 95% CI, 0.59 to 1.92), and of myocardial infarction (HR, 1.33; 95% CI, 1.05 to 1.69). For any ischemic stroke, there was a significant interaction between the Gly460Trp polymorphism and hypertension. Variant carriers more often had a silent brain infarct (odds ratio, 1.36; 95% CI, 0.98 to 1.88) and had more subcortical white matter lesions than the reference group (1.45 vs1.24 mL; P=0.22).ConclusionsThe Gly460Trp polymorphism is associated with atherosclerosis, cardiovascular disease, and cerebrovascular disease, especially in hypertensive subjects.

Original publication

DOI

10.1161/01.str.0000248760.67039.2b

Type

Journal article

Journal

Stroke

Publication Date

12/2006

Volume

37

Pages

2930 - 2934

Addresses

Department of Epidemiology and Biostatistics, Erasmus Medical Center, PO Box 1738, 3000 DR Rotterdam, The Netherlands.

Keywords

Humans, Cerebrovascular Disorders, Carotid Artery Diseases, Cardiovascular Diseases, Myocardial Infarction, Calmodulin-Binding Proteins, Risk Factors, Cohort Studies, Prospective Studies, Polymorphism, Genetic, Aged, Middle Aged, Netherlands, Female, Male, Atherosclerosis, Stroke