Variations in the WNK1 gene modulates the effect of dietary intake of sodium and potassium on blood pressure determination

J Hum Genet. 2009 Aug;54(8):474-8. doi: 10.1038/jhg.2009.64. Epub 2009 Jul 17.

Abstract

WNK lysine-deficient protein kinase 1 (WNK1) is a member of the WNK family of serine/threonine kinases with no lysine (K), and these kinases have been implicated as important modulators of salt homeostasis in the kidney. It is well known that high dietary sodium and low dietary potassium have been implicated in the etiology of increased blood pressure. However, the blood pressure response to dietary sodium and potassium intake varies considerably among individuals. In this study, we have detected that the haplotypes of the WNK1 gene are associated with blood pressure variations in the general Japanese population. In addition, we investigated the interactions between the haplotypes of the WNK1 gene and dietary sodium and potassium intake for determining inter-individual variations in blood pressure. Our data support the hypothesis that part of the variation in blood pressure response to dietary sodium and potassium intake among individuals can be explained by variations in the WNK1 gene.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Blood Pressure / genetics*
  • Blood Pressure Monitoring, Ambulatory
  • DNA / analysis
  • DNA / genetics
  • Haplotypes / genetics*
  • Humans
  • Intracellular Signaling Peptides and Proteins
  • Linkage Disequilibrium
  • Male
  • Middle Aged
  • Minor Histocompatibility Antigens
  • Polymorphism, Single Nucleotide / genetics*
  • Potassium / administration & dosage*
  • Potassium, Dietary / administration & dosage*
  • Protein-Serine-Threonine Kinases / genetics*
  • Sodium, Dietary / administration & dosage*
  • WNK Lysine-Deficient Protein Kinase 1

Substances

  • Intracellular Signaling Peptides and Proteins
  • Minor Histocompatibility Antigens
  • Potassium, Dietary
  • Sodium, Dietary
  • DNA
  • Protein-Serine-Threonine Kinases
  • WNK Lysine-Deficient Protein Kinase 1
  • WNK1 protein, human
  • Potassium