title: Renin gene polymorphism: its relationship to hypertension, renin levels and vascular responses.
abstract: The renin gene has been previously reported to be associated with essential hypertension in a variety of ethnic groups. However, no studies have systematically evaluated the relationship between single nucleotide polymorphisms (SNPs) representing coverage of the entire renin gene and hypertension risk. To evaluate the association between renin gene variation and hypertension we investigated data on HyperPATH cohort with 570 hypertensive and 222 normotensive Caucasian subjects. Six tagging SNPs and resultant haplotypes were tested for associations with hypertension risk, followed by mean arterial pressure (MAP), plasma renin activity (PRA) and the change in MAP in response to angiotensin II (AngII) infusion (AngII ΔMAP). The A allele of SNP rs6693954 and the haplotype containing rs6696954A were significantly associated with higher risk for hypertension (OR = 1.98, p = 0.0001; OR = 1.63 p = 0.0005, respectively). The same haplotype block was also associated with altered PRA levels and blunted AngII ΔMAP (global p-value = 0.02, 0.047, respectively). Our results confirm that polymorphisms in the renin gene are associated with increased risk for hypertension in an independent cohort, and that the underlying mechanism may reside in the interaction of renin activity and vascular responsiveness to angiotensin II.
authors.affiliation: Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115 , USA.
authors.forename: Bei
authors.initials: B
authors.lastname: Sun
authors.forename: Jonathan S
authors.initials: JS
authors.lastname: Williams
authors.forename: Luminita
authors.initials: L
authors.lastname: Pojoga
authors.forename: Bindu
authors.initials: B
authors.lastname: Chamarthi
authors.forename: Jessica
authors.initials: J
authors.lastname: Lasky-Su
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Raby
authors.forename: Paul N
authors.initials: PN
authors.lastname: Hopkins
authors.forename: Xavier
authors.initials: X
authors.lastname: Jeunemaitre
authors.forename: Nancy J
authors.initials: NJ
authors.lastname: Brown
authors.forename: Claudio
authors.initials: C
authors.lastname: Ferri
authors.forename: Gordon H
authors.initials: GH
authors.lastname: Williams
mesh_terms: D000328:Adult; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006239:Haplotypes / Q000235:genetics; D006439:Hemodynamics; D006801:Humans; D006973:Hypertension / Q000097:blood* / Q000235:genetics* / Q000503:physiopathology; D015810:Linkage Disequilibrium / Q000235:genetics; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D019655:Quantitative Trait, Heritable; D012083:Renin / Q000097:blood* / Q000235:genetics*; D012307:Risk Factors
chemical_list: D012083:Renin