Document Detail


Modulation of the BP response to diet by genes in the renin-angiotensin system and the adrenergic nervous system.
MedLine Citation:
PMID:  21088669     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Essential hypertension results from the interaction of several genetic and environmental factors. Identification of genetic factors that modulate blood pressure (BP) response to interventions can lead to improved strategies for prevention and control. The purpose of this study was to identify genes that modulate BP response to dietary interventions.
METHODS: We used data and samples collected in two randomized feeding studies to determine the extent to which genetic architecture is associated with the effect on BP of sodium intake and the Dietary Approaches to Stop Hypertension (DASH) dietary pattern. Participants in both trials were adults with above-optimal BP or unmedicated stage 1 hypertension. Genomic DNA was typed for several candidate genes.
RESULTS: The effect of sodium intake on BP differed by genotype at the angiotensinogen, β2-adrenergic receptor, and kallikrein loci. The effect of DASH dietary pattern on BP differed by genotype at the β2-adrenergic receptor locus.
CONCLUSIONS: These findings have implications for understanding the mechanism(s) through which diet affects BP, the heterogeneity of these effects, and the extent to which dietary interventions can modulate genetic predisposition.
Authors:
Laura P Svetkey; Emily L Harris; Eden Martin; William M Vollmer; Gayle T Meltesen; Vincent Ricchiuti; Gordon Williams; Lawrence J Appel; George A Bray; Thomas J Moore; Michelle P Winn; Paul R Conlin
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Publication Detail:
Type:  Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, N.I.H., Extramural     Date:  2010-11-18
Journal Detail:
Title:  American journal of hypertension     Volume:  24     ISSN:  1941-7225     ISO Abbreviation:  Am. J. Hypertens.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-20     Completed Date:  2011-05-03     Revised Date:  2011-07-28    
Medline Journal Info:
Nlm Unique ID:  8803676     Medline TA:  Am J Hypertens     Country:  United States    
Other Details:
Languages:  eng     Pagination:  209-17     Citation Subset:  IM    
Affiliation:
Duke University Medical Center, Durham, North Carolina, USA. svetk001@mc.duke.edu
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MeSH Terms
Descriptor/Qualifier:
Adrenergic Fibers / metabolism*
Adult
Angiotensinogen / genetics
Blood Pressure / genetics*
Diet, Sodium-Restricted*
Female
Genetic Association Studies
Genetic Predisposition to Disease
Humans
Hypertension / diet therapy*,  genetics*,  metabolism,  physiopathology
Kallikreins / genetics
Linkage Disequilibrium
Male
Middle Aged
Phenotype
Polymorphism, Single Nucleotide
Receptors, Adrenergic, beta-2 / genetics
Renin-Angiotensin System / genetics*
Risk Assessment
Risk Factors
Sodium, Dietary / adverse effects*
Sympathetic Nervous System / metabolism*,  physiopathology
Treatment Outcome
Grant Support
ID/Acronym/Agency:
K24 DK63214/DK/NIDDK NIH HHS; R01 DK074748-06/DK/NIDDK NIH HHS; R01 HL057114-07/HL/NHLBI NIH HHS; R01 HL77234/HL/NHLBI NIH HHS; R01HL57114/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/ADRB2 protein, human; 0/Receptors, Adrenergic, beta-2; 0/Sodium, Dietary; 11002-13-4/Angiotensinogen; EC 3.4.21.-/Kallikreins
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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