Table of Contents
Advances in Molecular Biology
Volume 2014 (2014), Article ID 471635, 11 pages
Research Article

Beta2-Adrenergic Receptor Gene Polymorphisms in Egyptian Patients with Acute Myocardial Infarction

1Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
2Department of Chest Diseases, Faculty of Medicine, Cairo University, Giza, Egypt
3Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt

Received 31 July 2014; Revised 8 November 2014; Accepted 17 November 2014; Published 9 December 2014

Academic Editor: Piero R. Bianco

Copyright © 2014 Eman Toraih et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Beta2-adrenergic receptor (ADRB2) gene polymorphisms, Arg16Gly and Gln27Glu, have been implicated in the pathogenesis of cardiovascular diseases. The aim of this study was to determine the association of these two polymorphisms with the risk of myocardial infarction (MI) in the Egyptian population. Methods. Blood samples were collected from 68 MI patients and 75 healthy controls. They were assessed for the presence of cardiovascular risk factors and genotyped for the Arg16Gly (rs1042713) and Gln27Glu (rs1042714) polymorphisms using allelic-discrimination polymerase chain reaction. Results. There is no significant difference in genotype and allele frequencies at codon 16 between MI patients and controls (). However, at codon 27, MI risk was higher in Gln27 homozygous participants than in Glu27 carriers (). The haplotype frequency distribution showed significant difference among cases and controls (); homozygotes for Gly16/Gln27 haplotype were more susceptible to MI than Gly16/Glu27 carriers. Patients with Arg16/Gln27 haplotype had higher serum total cholesterol levels () and lower frequency of diabetes in MI patients (). However, both Glu27 genotypes and haplotype showed lower frequency of hypertension (). Conclusions. Our findings suggested that the ADRB2 gene polymorphisms may play an important role in susceptibility of MI among Egyptian population.