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    Ambulatory blood pressure is associated with polymorphic variation in P2X receptor genes.

    Palomino-Doza, Julian; Rahman, Thahira J; Avery, Peter J; Mayosi, Bongani M; Farrall, Martin; Watkins, Hugh; Edwards, Christopher R W; Keavney, Bernard

    Hypertension. 2008;52(5):980-5.

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    Abstract

    The P2X receptor gene family encodes a series of proteins that function as ATP-gated nonselective ion channels. P2X receptor channels are involved in transducing aldosterone-mediated signaling in the distal renal tubule and are potential candidate genes for blood pressure regulation. We performed a family based quantitative genetic association study in 248 families ascertained through a proband with hypertension to investigate the relationship between common genetic variation in the P2X4, P2X6, and P2X7 genes and ambulatory blood pressure. We genotyped 28 single nucleotide polymorphisms, which together captured the common genetic variability in the 3 genes. We corrected our results for multiple comparisons specifying a false discovery rate of 5%. We found significant evidence of association between the single nucleotide polymorphism rs591874 in the first intron of the P2X7 gene and blood pressure. The strongest association was found for nighttime diastolic blood pressure (P=0.0032), although association was present for both systolic and diastolic blood pressures measured by an observer during the day and at night. Genotypes were associated with a 0.2 SD ( approximately 2.5 mm Hg) difference in night diastolic blood pressure per allele and accounted for approximately 1% of the total variability in this measurement. Other suggestive associations were found, but these were nonsignificant after correction for multiple testing. These genetic data suggest that drugs affecting P2X receptor signaling may have promise as clinical antihypertensive agents.

    Bibliographic metadata

    Type of resource:
    Content type:
    Publication type:
    Published date:
    Journal title:
    Abbreviated journal title:
    ISSN:
    Place of publication:
    United States
    Volume:
    52
    Issue:
    5
    Pagination:
    980-5
    Digital Object Identifier:
    10.1161/HYPERTENSIONAHA.108.113282
    Pubmed Identifier:
    18852390
    Pii Identifier:
    HYPERTENSIONAHA.108.113282
    Funder acknowledgement:
    Access state:
    Active

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    Manchester eScholar ID:
    uk-ac-man-scw:201263
    Created by:
    Price, Caroline
    Created:
    11th July, 2013, 14:56:27
    Last modified by:
    Price, Caroline
    Last modified:
    11th July, 2013, 14:56:27

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