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Angiotensin-converting enzyme gene insertion/deletion polymorphism in Egyptian patients with myocardial infarctionDepartment of Genetics, Faculty of Medicine, Mansoura University, Mansoura, Egypt, settin60{at}gmail.com
Department of Genetics, Faculty of Medicine, Mansoura University, Mansoura, Egypt
Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
Department of Cardiology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt Introduction. This work aimed to test the association of the angiotensin-converting enzyme gene insertion/deletion (I/D) polymorphism with myocardial infarction. Subjects and methods. This study comprised 79 Egyptian myocardial infarction cases with a mean age of 54.4±9.9 years including 60 males and 19 females, plus 238 healthy unrelated individuals of nearly matched age and sex as a control group. For all subjects, DNA testing for the angiotensin-converting enzyme gene I/D polymorphism was done using PCR amplification for detection of both the D and I alleles followed by a second run PCR specific for the I allele for samples typed as DD in the first run. Results. Cases had a higher frequency of DD (29.1%) and ID (62.0%) genotypes than II (8.9%) genotype, with a higher frequency of D allele than I allele (64.4% vs. 33.6%). Compared to controls, cases had a significantly higher frequency of ID genotype (62.0% vs. 47.5%, p<0.05).This was more apparent among cases in the low risk group (p=0.002) than in the high risk group (p=0.041). Conclusion. The angiotensin-converting enzyme gene I/D polymorphism is probably a risk factor for ischaemic heart disease among Egyptian cases, particularly if integrated with other environmental and genetic risk factors.
Key Words: angiotensin-converting enzyme Egypt gene polymorphism ischaemic heart disease myocardial infarction
Journal of Renin-Angiotensin-Aldosterone System, Vol. 10, No. 2,
96-100 (2009) |
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