The Atrial Natriuretic Peptide Genetic Variant rs5068 Is Associated With a Favorable Cardiometabolic Phenotype in a Mediterranean Population

• Autores: Valentina Cannone, Angelo Baldassare Cefalù, David Noto, Christopher G. Scott, Kent R. Bailey, Giovanni Cavera, Michele Pagano, Michelangelo Sapienza, Maurizio R. Averna, John C. Burnett
• Localización: Diabetes care, ISSN-e 0149-5992, Vol. 36, Nº. 9, 2013, págs. 2849-2850
• Idioma: inglés
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• Resumen

  • We hypothesized that the minor allele of the atrial natriuretic peptide (ANP) genetic variant rs5068 is associated with a favorable cardiometabolic phenotype in a general Mediterranean population. We genotyped a random sample of the residents of Ventimiglia di Sicilia, Sicily, for rs5068. Genotype frequencies of rs5068 are AA, 93.5%; AG, 6.4%; and GG, 0.1%. All subsequent analyses are AA versus AG+GG. After adjusting for age and sex, the minor G allele is associated with lower BMI (estimate [SE]: -1.7 kg/m2 [0.8], P = 0.04). In the AG+GG group, males with HDL cholesterol levels <40 mg/dL are less frequent (P = 0.05) and obesity tends to be less prevalent (P = 0.07). Importantly, the G allele is associated with a lower prevalence of metabolic syndrome (P = 0.02). After adjusting for BMI, the above associations were attenuated. Independently of age, sex, and BMI, the minor allele is also associated with lower systolic blood pressure (-6.0 mmHg [2.5], P = 0.02) and lower prevalence of hypertension (odds ratio 0.41 [95% CI 0.20-0.83], P = 0.01). The association between the minor allele of rs5068 and a favorable cardiometabolic phenotype that we previously reported in a U.S. population is now replicated in a Mediterranean population in which the G allele of rs5068 is associated with lower blood pressure, BMI, and prevalence of hypertension and metabolic syndrome. These findings may lead to a diagnostic strategy to assess cardiometabolic risk and lay the foundation for the future development of an ANP or ANP-like therapy for metabolic syndrome.