Urotensin-II system in genetic control of blood pressure and renal function.

Radoslaw Debiec, Paraskevi Christofidou, Matthew Denniff, Lisa D Bloomer, Pawel Bogdanski, Lukasz Wojnar, Katarzyna Musialik, Fadi J Charchar, John R Thompson, Dawn Waterworth, Kijoung Song, Peter Vollenweider, Gerard Waeber, Ewa Zukowska-Szczechowska, Nilesh J Samani, David Lambert, Maciej Tomaszewski

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Urotensin-II controls ion/water homeostasis in fish and vascular tone in rodents. We hypothesised that common genetic variants in urotensin-II pathway genes are associated with human blood pressure or renal function. We performed family-based analysis of association between blood pressure, glomerular filtration and genes of the urotensin-II pathway (urotensin-II, urotensin-II related peptide, urotensin-II receptor) saturated with 28 tagging single nucleotide polymorphisms in 2024 individuals from 520 families; followed by an independent replication in 420 families and 7545 unrelated subjects. The expression studies of the urotensin-II pathway were carried out in 97 human kidneys. Phylogenetic evolutionary analysis was conducted in 17 vertebrate species. One single nucleotide polymorphism (rs531485 in urotensin-II gene) was associated with adjusted estimated glomerular filtration rate in the discovery cohort (p = 0.0005). It showed no association with estimated glomerular filtration rate in the combined replication resource of 8724 subjects from 6 populations. Expression of urotensin-II and its receptor showed strong linear correlation (r = 0.86, p
    Original languageEnglish
    JournalPLoS ONE
    Volume8
    Issue number12
    DOIs
    Publication statusPublished - 2013

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