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Role of the Gly460Trp polymorphism of the alpha-adducin gene in primary hypertension in Scandinavians

In English

Författare

Summary, in English

Previous studies have suggested that the Trp460 allele of the Gly460Trp polymorphism in the alpha-adducin gene is associated with salt sensitivity and primary hypertension. The present study was undertaken to evaluate if the Trp460 allele of this polymorphism is associated with primary hypertension in Scandinavians. To address this issue, 294 patients with primary hypertension and 265 normotensive control subjects from Sweden were examined and genotyped for the Gly460Trp polymorphism using polymerase chain reaction and restriction fragment length polymorphism methods. We then used a population of 80 patients with primary hypertension and 154 normotensive control subjects from Finland to replicate the findings. The frequency of the Trp460 allele was lower in hypertensive patients than in normotensive controls in the Swedish population (17.7% vs 23.0%; P = 0.03) and in the Finnish population (14.4% vs 19.5%; NS). Therefore we also performed a pooled analysis in which the frequency of the Trp460 allele was significantly lower in hypertensive patients than in normotensive controls (17.0% vs 21. 7%; P = 0.02). In subjects who did not receive antihypertensive medication (n = 447) there was no difference between carriers of the three different codon 460 genotypes (Trp-Trp; Trp-Gly and Gly-Gly) either for systolic (128 +/- 18; 127 +/- 15 and 129 +/- 17 mm Hg, NS) or for diastolic blood pressure (75.6 +/- 12.1; 74.7 +/- 9.3 and 75.0 +/- 10.4 mm Hg, NS). In conclusion, the lower frequency of the Trp460 allele in hypertensive patients than in normotensive controls strongly argues against a pathogenic role of this allele in primary hypertension. The results rather suggest that another variant in linkage disequilibrium with the Gly460Trp polymorphism increases susceptibility for hypertension.Journal of Human Hypertension (2000) 14, 43-46.

Publiceringsår

2000

Språk

Engelska

Sidor

43-46

Publikation/Tidskrift/Serie

Journal of Human Hypertension

Volym

14

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Nature Publishing Group

Ämne

  • Cardiac and Cardiovascular Systems

Status

Published

Forskningsgrupp

  • Genomics, Diabetes and Endocrinology
  • Community Medicine

ISBN/ISSN/Övrigt

  • ISSN: 1476-5527