scholarly journals THE ROLE OF GENETIC FACTORS IN THE MECHANISM OF CORONARY ARTERY REMODELING AFTER IMPLANTATION OF STENTS

2015 ◽  
Vol 14 (1) ◽  
pp. 102-109
Author(s):  
S. I. Vintizenko ◽  
L. M. Ogorodova ◽  
K. Yu. Rukin ◽  
I. V. Petrova

In the last 10 years the World has increased significantly the frequency of joint replacement in patients with coronary artery disease. Coronary angioplasty with stenting significantly improve the capacity and effectiveness of the treatment of coronary artery disease. However, an important factor limiting the effectiveness of endovascular treatment of restenosis remains the stented area.The article presents an overview of the most studied gene polymorphisms of hemostasis, inflammation system, the renin-angiotensin system, endothelial nitric oxide synthase, which can play a key role in the development of in-stent restenosis. Research in this area are significant and may help in understanding the mechanisms and risk stratification of restenosis after angioplasty.

2006 ◽  
Vol 52 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Mohsen Kerkeni ◽  
Faouzi Addad ◽  
Maryline Chauffert ◽  
Anne Myara ◽  
Mohamed Ben Farhat ◽  
...  

Abstract Background: Hyperhomocysteinemia is an independent, graded risk factor for coronary artery disease (CAD). The G894T variant of endothelial nitric oxide synthase (eNOS) was postulated to be associated with hyperhomocysteinemia and could influence individual susceptibility to CAD. The aims of this study were to investigate (a) the relationship of the eNOS G894T polymorphism with the presence and the severity of CAD and (b) the possible relationship between hyperhomocysteinemia and the eNOS G894T variant for the risk of CAD severity in a Tunisian population. Methods: We used PCR with restriction fragment length polymorphism analysis to detect the G894T variant of the eNOS gene in 100 patients with CAD and 120 healthy controls. The severity of CAD was expressed by the number of affected vessels. Total plasma homocysteine concentrations were determined by direct chemiluminescence assay. Results: The frequencies of the eNOS GG, GT, and TT genotypes in the CAD group were significantly different from those in the control group (45%, 44%, and 11% vs 60%, 35.8% and 4.2%, respectively; P = 0.035). There was no association between the eNOS G894T genotype frequencies and the number of stenosed vessels (P = 0.149). In the CAD group, the coexistence of the 894 GT or TT genotypes and hyperhomocysteinemia led to an increased risk of CAD severity. Conclusion: The G894T polymorphism of the eNOS gene is associated with the presence of CAD, and in conjunction with hyperhomocysteinemia, increased the risk of CAD severity in a Tunisian population.


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