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Olle Melander

Principal investigator

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A genetic variant of the atrial natriuretic peptide gene is associated with left ventricular hypertrophy in a non-diabetic population - the Malmo preventive project study

Author

  • Amra Jujic
  • Margrét Leosdottir
  • Gerd Östling
  • Petri Gudmundsson
  • Peter Nilsson
  • Olle Melander
  • Martin Magnusson

Summary, in English

Background: Epidemiological studies have shown considerable heritability of blood pressure, thus suggesting a role for genetic factors. Previous studies have shown an association of a single nucleotide polymorphism rs5068 in the NPPA locus gene with higher levels of circulating atrial natriuretic peptide as well as with lower intra individual blood pressure, but up to date, no association between rs5068 and cardiac organ damage, i.e. left ventricular hypertrophy, has been accounted for in humans. We sought to explore if rs5068 is associated with left ventricular hypertrophy as measured by echocardiographic examination in a non-diabetic population. Methods: 968 non-diabetic individuals from the Malmo Preventive Project (mean age 67 years; 31% women) were genotyped and examined with echocardiography. Logistic regression was used to adjust for covariates. Results: The minor allele of rs5068 was associated with decreased prevalence of left ventricular hypertrophy (p = 0.021) after adjustment for sex and age. In the multivariate logistic analysis including; age, sex, systolic blood pressure, antihypertensive and/or cardioprotective treatment, body mass index and fasting plasma glucose, the association of rs5068 with left ventricular hypertrophy was, as expected, attenuated (p = 0.061). Conclusion: In a non-diabetic population, the minor allele of rs5068 was associated with lower left ventricular mass. These findings suggest that rs5068, or genetic variants in linkage disequilibrium, might affect susceptibility to left ventricular hypertrophy and support the possible protective role of natriuretic peptides.

Department/s

  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology
  • EXODIAB: Excellence in Diabetes Research in Sweden
  • EpiHealth: Epidemiology for Health

Publishing year

2013

Language

English

Publication/Series

BMC Medical Genetics

Volume

14

Document type

Journal article

Publisher

BioMed Central (BMC)

Topic

  • Medical Genetics

Status

Published

Research group

  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology

ISBN/ISSN/Other

  • ISSN: 1471-2350