title: A single-nucleotide polymorphism in C-type natriuretic peptide gene may be associated with hypertension.
abstract: We conducted an association study between genetic variants of C-type natriuretic peptide gene (CNP) and hypertension in a Japanese population. We found four genetic variants, two in the promoter region, one missense mutation, and one in the 3'-untranslated region (3'-UTR), and genotyped all four variants in 2,006 subjects recruited from the Suita study. One of the variants, G2628A in 3'-UTR, was found to be associated with blood pressure. Multiple logistic analyses indicated that the genotype of the G2628A polymorphism (GG=1, GA+AA=2) (p=0.0034), sex (p=0.0288), alcohol consumption (p=0.0002), age (p<0.0001), and body mass index (p<0.0001) were predictors of hypertension. The odds ratio of the GA+AA genotype over the GG genotype for hypertension was 1.40 (p=0.0034, 95% confidence interval (CI) 1.12-1.75). Multiple logistic analyses in a younger subpopulation aged below 65 years indicated that the odds ratio of the GA+AA genotype over the GG genotype for hypertension was 1.58 (p=0.0024, 95%CI 1.18-2.12). Thus, the CNP G2628A polymorphism made an even greater contribution to hypertension in the younger subpopulation.
authors.affiliation: Research Institute, National Cardiovascular Center, Suita, Japan.
authors.forename: Koh
authors.initials: K
authors.lastname: Ono
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Mannami
authors.forename: Shunroku
authors.initials: S
authors.lastname: Baba
authors.forename: Hitonobu
authors.initials: H
authors.lastname: Tomoike
authors.forename: Sin-ichi
authors.initials: S
authors.lastname: Suga
authors.forename: Naoharu
authors.initials: N
authors.lastname: Iwai
mesh_terms: D017677:Age Distribution; D000368:Aged; D001794:Blood Pressure / Q000235:genetics; D005260:Female; D020022:Genetic Predisposition to Disease / Q000453:epidemiology; D005838:Genotype; D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020098:Natriuretic Peptide, C-Type / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide
chemical_list: D020098:Natriuretic Peptide, C-Type