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  • Title: Deletion polymorphism of the angiotensin converting enzyme gene is associated with an increase in left ventricular mass in men with type 2 diabetes mellitus.
    Author: Estacio RO, Jeffers BW, Havranek EP, Krick D, Raynolds M, Schrier RW.
    Journal: Am J Hypertens; 1999 Jun; 12(6):637-42. PubMed ID: 10371375.
    Abstract:
    Previous studies evaluating the angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism have revealed that expression of the DD genotype is associated with an increase in myocardial infarction, cardiomyopathy, and left ventricular (LV) mass in nondiabetic patients. In the present study, a cross-sectional analysis was performed to evaluate the potential relationship between the ACE I/D genotypes and the LV mass index in 289 non-insulin-dependent diabetes mellitus (NIDDM) subjects without known coronary artery disease. Two dimensional directed M-mode echocardiograms along with selected patient characteristics were obtained from the study population. The distribution of the I/D polymorphism was as follows: 63 were II (22%), 137 were ID (47%), and 89 were DD (31%). Univariately, the DD genotype was associated with an increase in LV mass in men but not in women. When subjected to a multiple regression model that included age, systolic blood pressure, duration of diabetes, duration of hypertension, presence of the black race, and the presence of the DD genotype, the DD genotype was independently associated with an increase in the LV mass index with a parameter estimate of 10.5 g/m2 (95% CI = 3.9, 17.0; P < .002) in the male subjects. Thus, in this NIDDM study population, male patients with the DD genotype are independently associated with an increased LV mass.
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