The aim of this study was to estimate the prevalence of the different alleles of the angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism and associated plasma ACE activity, as well as cardiac echocardiographic structure, in a healthy Chilean population.
We selected 117 healthy normotensive subjects (aged 45 to 60 years, middle socioeconomic status, nonobese, and nondiabetic) from a population-based study concerning the prevalence of risk factors for chronic diseases (Conjunto de Acciones Para la Reduccion Multifactorial de las Enfermedades no Transmisibles [CARMEN]). The frequencies of the I and D alleles were 0.57 and 0.43, respectively.
Mean plasma ACE activity was 15.3 ± 3.9 U/mL.
Compared with subjects with the II genotype, plasma ACE activity was significantly higher in subjects with the ID and DD genotypes with no difference between them.
No correlation was observed between blood pressure and plasma ACE activity.
Among the three different genotypes there was no difference in left ventricular (LV) dimensions or in LV mass.
No correlation between plasma ACE activity and LV mass was observed for either gender or different genotypes.
Multivariate linear regression analysis using LV mass and LV mass index as dependent variables showed independent effects (P<. 05) for gender (higher LV mass in men) and diastolic blood pressure, but not for the DD genotype. (...)
Mots-clés Pascal : Chili, Amérique du Sud, Amérique, Homme, Exploration, Peptidyl-dipeptidase A, Peptidyl-dipeptidases, Peptidases, Hydrolases, Enzyme, Activité enzymatique, Polymorphisme, Gène, Déterminisme génétique, Masse, Ventricule gauche, Génotype, Appareil circulatoire
Mots-clés Pascal anglais : Chile, South America, America, Human, Exploration, Peptidyl-dipeptidase A, Peptidyl-dipeptidases, Peptidases, Hydrolases, Enzyme, Enzymatic activity, Polymorphism, Gene, Genetic determinism, Mass, Left ventricle, Genotype, Circulatory system
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0423626
Code Inist : 002B30A01C. Création : 22/03/2000.