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  • Title: Hypertension: molecular approach.
    Author: Lele RD.
    Journal: J Assoc Physicians India; 2004 Jan; 52():53-62. PubMed ID: 15633721.
    Abstract:
    The so-called essential hypertension is not a single entity but a mixed bag with several polygenic quantitative traits acting in concert in different combinations in different individuals. This review collates all published information from different centres using different approaches to identify candidate genes in human hypertension. 1) gene targeting approach in animal models of HT (Smithies and Maeda, 1995); 2) identification of 874 candidate SNPs in 75 candidate genes for human HT (Halushka et al, 1999); 3) comparative genomic approach translating QTLs between rat and human HT, to identify 26 chromosome regions on 16 autosomes (Stoll M et al, 2000); 4) Ten centimorgan genome-wide scan done on 2010 affected sibling pairs drawn from 1599 severely hypertensive families (Caulfield et al, 2003). The molecular mechanisms of various molecules involved in the homeostasis of blood pressure are discussed. NO, O2, PG12, EDHF, endothelin, IL-6, selectin, phospholipase A2G1B, BH4, SOD, IRS-1, adrenomedullin, PAMP, CGRP, ANP, bradykinin and bombesin; adducin alpha, beta, gamma, SAH, renin, angiotensinogen. angiotensin II, aldosterone CYP11B1, mineralocorticoid receptors, 11betaHSD, DBH, PNMT, beta2adrenoreceptors, and genes related to ion transport-sodium-lithium cotransporters, ENaC, NaCl cotransporters NKCC2, KCNJ and NaKATPase. Altered gene expression in fetus due to maternal malnutrition also "programmes" for adult hypertension.
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