ABSTRACT
BACKGROUND: The aim of this study was to investigate the role of angiotensin-converting enzyme gene polymorphism in patients with coronary artery disease in north India. METHODS AND RESULTS: One hundred forty-six patients with angiographically proven atherosclerotic coronary artery disease, and 146 age- and sex-matched control subjects (treadmill-negative) were included in the study. Genomic DNA was extracted and analyzed for angiotensin-converting enzyme insertion/deletion polymorphism. Two independent investigators scored the genotypes. CONCLUSIONS: When we compared the genotypes of patients with coronary artery disease with those of normal controls, it was seen that all three genotypes, i.e. DD, ID and II, were not statistically different among patients and controls. Further, we categorized the patient and control groups into 2 subgroups, i.e. below and above 50 years of age. Interestingly, it was observed that the DD genotype was significantly higher in patients in the higher age group (i.e. above 50 years of age). However, this needs further validation by studying patients with coronary artery disease from other parts of India.
Subject(s)
Adult , Case-Control Studies , Coronary Artery Disease/enzymology , Female , Genotype , Humans , India/epidemiology , Male , Middle Aged , Peptidyl-Dipeptidase A/genetics , Polymorphism, GeneticABSTRACT
In order to study genetic variability of apolipoprotein C-II in Ramgarhias and Ramdasias, two-dimensional gel electrophoresis with the combination of isoelectric focusing (IEF) and density gradient SDS-polyacrylamide gel electrophoresis (DG-SDS-PAGE) have been employed. ApoC-II exhibits three common polymorphic alleles CII-1, CII-2 and CII-3 with pooled frequencies of 0.883, 0.110 and 0.007 respectively. The rare allele CII-4 is absent in these two groups. Mean heterozygosity is found to be 0.208+ 0.024 at apoC-II structural locus. The frequency of apoCII-2 in Punjab is observed to be the highest in the world except Ukainers.