title: Association between a polymorphic poly-T repeat sequence in the promoter of the somatostatin gene and hypertension.
abstract: Despite the numerous common pathways connecting blood pressure regulation to somatostatin (SST) metabolism, the SST gene has never been seen as a significant blood pressure modulator. The aim of this study was to evaluate the association between a poly-T repeat sequence (rs34872250) in the promoter of the SST gene and blood pressure, according to the obesity status. We genotyped 1918 French-Canadian subjects from a founder population. Analyses were performed according to the length of the poly-T repeat sequence on both alleles and divided into two groups, the 13/13-13/14 group and the 13/15-13/16 group. The effect of age, gender, body mass index, antihypertensive drugs and diabetic status were considered. Systolic, diastolic and mean blood pressures are significantly higher among the 13/15-13/16 group in the whole sample (P<0.05). Whereas the differences remain significant in women, they turn to be non-significant when men are considered alone. The risk of hypertension is increased in the 13/15-13/16 group, particularly among overweight/obese subjects. Systolic blood pressure is significantly higher among overweight/obese carriers of the 13/15-13/16 alleles in the whole sample (P<0.001), in men (P=0.006) and in women (P=0.002), even after correction for age and antihypertensive drugs. These results suggest that the poly-T repeat sequence polymorphism in the promoter of the SST gene is associated with significant variations of blood pressure and could modulate the risk of hypertension, particularly among women.
authors.affiliation: Lipidology Unit, Community Genomic Medicine Center, Department of Medicine, Université de Montréal, Chicoutimi, Québec, Canada.|ECOGENE-21, Clinical and Translational Research Center, Chicoutimi, Québec, Canada.
authors.forename: Monique
authors.initials: M
authors.lastname: Tremblay
authors.affiliation: Lipidology Unit, Community Genomic Medicine Center, Department of Medicine, Université de Montréal, Chicoutimi, Québec, Canada.|ECOGENE-21, Clinical and Translational Research Center, Chicoutimi, Québec, Canada.
authors.forename: Diane
authors.initials: D
authors.lastname: Brisson
authors.affiliation: Lipidology Unit, Community Genomic Medicine Center, Department of Medicine, Université de Montréal, Chicoutimi, Québec, Canada.|ECOGENE-21, Clinical and Translational Research Center, Chicoutimi, Québec, Canada.
authors.forename: Daniel
authors.initials: D
authors.lastname: Gaudet
mesh_terms: D000328:Adult; D000483:Alleles; D001794:Blood Pressure / Q000235:genetics*; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D050177:Overweight / Q000150:complications / Q000235:genetics; D011071:Poly T / Q000235:genetics*; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic; D012307:Risk Factors; D013004:Somatostatin / Q000235:genetics*
chemical_list: D011071:Poly T; D013004:Somatostatin
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