scholarly journals GENES and In-Stent Restenosis: Review

2020 ◽  
Vol 11 (3) ◽  
pp. 3993-3998
Author(s):  
Tarek A. Abdelaziz ◽  
Randa H. Mohamed ◽  
Gehan F. Balata ◽  
Omar Y. El-Azzazy

The initiation of coronary stents is a vast landmark in the practice of interventional cardiology. The vascular injury sustained during the percutaneous coronary intervention (PCI) leads to a complicated inflammatory and repairing process. Therefore, stent restenosis arises. Diabetes mellitus is the highest-risk clinical predictor of ISR. Genetics has an important role in the development of ISR. There is a suggested association between the appearance of stent restenosis and certain genetic polymorphisms. Examples of these single nucleotide polymorphisms are endothelial nitric oxide synthase gene (eNOS), the angiotensin converting enzyme gene (ACE), the angiotensin II type 1 receptor gene (AT1R), TGF-β, and VEGF. CYP2C19 variants can help change the medical strategy to a more individualized therapeutic regimen either by altering the therapeutic dose depending on the genotype or using an alternative drug that does not worsen the patient’s case. However, eNOS polymorphism produces gene expression alteration leading to ISR following stent placement. In addition, the deletion-allele of the ACE genotype increases the risk of ISR; however, the I allele decreases the risk. Moreover, the D/I polymorphism is not an independent factor of ISR in patients administering ACE inhibitors or angiotensin receptor antagonists. Furthermore, studies on large sample sizes are required to decrease the harmful adverse effects of stent restenosis by detecting these allele gene polymorphisms.

2020 ◽  
pp. 17-21
Author(s):  
E. A. Shishkina ◽  
O. V. Khlynova ◽  
A. V. Tuev ◽  
A. V. Krivtsov

Objective. To determine the possible role of the endothelial nitric oxide synthase (eNOS) polymorphism T786C (rs 2070744) in developing of recurrent myocardial infarction (MI) in young and middle-aged patients. Materials and methods. 114 patients with acute MI treated with percutaneous coronary intervention and thrombolysis that were admitted to Clinical cardiologic dispensary (Perm city, Russia) were enrolled into a study. Among them there were 28 patients with recurrent MI. The eNOS T786C polymorphism were determined by real-time PCR. Results. In T786C polymorphism of eNOS, compared with the T/T genotype, it was determined that those with T/C has 2,27 fold (95 % CI: 1.01–5.49), and those with the CC genotype has 2.22 times (95 % CI: 1.30–8.53) (p = 0.034) greater risk of developing recurrent MI. Patients with severe coronary arteries atherosclerosis more frequently had eNOS T786C polymorphism of T/C genotype (OR = 4,67; 95 % CI: 1,38–15,37; p = 0,031). Conclusion. The eNOS T786C variants could be evaluated as recurrent MI risk factor in young and middle-aged patients.


2021 ◽  
pp. 026835552110166
Author(s):  
Guangbin Huang ◽  
Xuejun Deng ◽  
Yanan Xu ◽  
Pan Wang ◽  
Tao Li ◽  
...  

Background Endothelial nitric oxide synthase (eNOS) polymorphism may influence the risk of venous thromboembolism (VTE). However, data from published studies with low statistical power are inconclusive. The present meta-analysis aimed to assess the relationship between eNOS polymorphism and the risk of VTE. Method Case-control studies evaluating the association between the eNOS polymorphism and VTE were searched in PubMed, Embase, Web of Science, Google Scholar, Wanfang, Chinese National Knowledge Infrastructure (CNKI), the Chongqing VIP Chinese Science and Technology Periodical Database (VIP), and Chinese Biomedical Literature Database (CBM). Results A total of 1588 cases and 2405 controls from 9 studies were included in the analysis. The results showed that eNOS G894T polymorphism was related to VTE susceptibility and the difference was statistically significant [T vs G: OR = 1.41, 95% CI (1.13, 1.75), P = 0.002; TT + GG vs TG: OR = 0.71, 95% CI (0.60, 0.84), P = 0.000; TT + TG vs GG: OR = 1.45, 95% CI (1.23, 1.70), P = 0.000]. Additionally, eNOS Intron 4 VNTR polymorphism was related to VTE susceptibility and the difference was statistically significant [4b4b vs 4a4a + 4a4b: OR = 2.77, 95% CI (1.01, 7.61), P = 0.048]. Conclusion ENOS G894T and eNOS Intron 4 VNTR polymorphisms were associated with VTE susceptibility, especially in Asian populations. However, multicenter studies with larger samples should be conducted to further clarify this association and verify our findings.


2014 ◽  
Vol 17 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Vasudevan R. ◽  
Ismail P. ◽  
Jaafar N.I. ◽  
Mohamad N.A. ◽  
Etemad E. ◽  
...  

Abstract The aim of this study was to determine the association of the c.894G>T; p.Glu298Asp polymorphism and the variable number tandem repeat (VNTR) polymorphism of the endothelial nitric oxide synthase (eNOS) gene and c.181C>T polymorphism of the bradykinin type 2 receptor gene (B2R) in Malaysian end-stage renal disease (ESRD) subjects. A total of 150 ESRD patients were recruited from the National Kidney Foundation’s (NKF)dialysis centers in Malaysia and compared with 150 normal healthy individuals. Genomic DNA was extracted from buccal cells of all the subjects. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was carried out to amplify the products and the restricted fragments were separated by agarose gel electrophoresis. Statistical analyses were carried out using software where a level of p <0.05 was considered to be statistically significant. The genotypic and allelic frequencies of the B2R gene (c.181C>T, 4b/a) and eNOS gene (c.894G>T) polymorphisms were not statistically significant (p >0.05) when compared to the control subjects. The B2R and eNOS gene polymorphisms may not be considered as genetic susceptibility markers for Malaysian ESRD subjects.


2019 ◽  
Vol 9 (17) ◽  
pp. 3527 ◽  
Author(s):  
Alexandre Hideo-Kajita ◽  
Samuel Wopperer ◽  
Vinícius Bocchino Seleme ◽  
Marcelo Harada Ribeiro ◽  
Carlos M. Campos

In the treatment of atherosclerotic disease patients, the adoption of second-generation drug-eluting stents (DES) in percutaneous coronary intervention reduced the occurrence of in-stent restenosis (ISR) and acute stent thrombosis (ST) when compared to bare metal stents and 1st generation DES. However, the permanent encaging of the vessel wall by any of the metallic stents perpetuates the inflammation process and prevents vasomotion in the treated segment. Aiming to overcome this issue, the bioresorbable scaffold (BRS) concept was developed by providing transient vascular radial support to the target segment during the necessary time to heal and disappearing after a period of time. Close to 20 years since BRS technology was first reported, the interventional cardiology field saw the rise and fall of several BRS devices. Although iron-based BRS is an emerging technology, currently, magnesium-alloy resorbable scaffolds devices are supported with the most robust data. This manuscript aims to review the concept of magnesium-based BRS devices, as well as their bioresorption mechanisms and the status of this technology, and the clinical outcomes of patients treated with magnesium BRS and to review the available evidence on iron-based BRS technology.


2008 ◽  
Vol 294 (5) ◽  
pp. E978-E986 ◽  
Author(s):  
Elena Galluccio ◽  
PierMarco Piatti ◽  
Lorena Citterio ◽  
Pietro C. G. Lucotti ◽  
Emanuela Setola ◽  
...  

Little is known about the association of endothelial nitric oxide synthase (NOS3) gene polymorphisms and the presence of insulin resistance and the early evolution of atherosclerosis in nondiabetic subjects with cardiovascular disease (CAD) and stent implantation. The present study was performed in an attempt to better understand whether metabolic, endothelial, and angiographic findings characteristic of subjects with cardiovascular disease and in-stent restenosis are related to NOS3 variants. This is a case-control study performed from 2002 to 2006. All subjects admitted to the study were recruited in the Nord-Centre of Italy, most from Milan and its surrounding towns. Measures of glucose tolerance, insulin sensitivity, markers of endothelial dysfunction, forearm vasodilation, and adipokine levels were determined and associated to the frequency of two single-nucleotide polymorphisms of NOS3, i.e., Glu298Asp (rs1799983, G/T) and rs753482 (intron 18 A/C). A total of 747 subjects, not known to have diabetes, were evaluated: 333 subjects had asymptomatic CAD, 106 subjects had unstable angina and were evaluated for in-stent restenosis 6 mo after stent placement, and 308 were control subjects. The presence of TT and CC minor alleles was significantly greater in case groups compared with control subjects. At phenotypic level, subjects with the polymorphisms were characterized by hyperinsulinemia and reduced reactive hyperemia, whereas increased leptin and decreased adiponectin levels were present in subjects with restenosis in the presence of reduced minimal lumen diameter and length of stenosis almost doubled. Hyperinsulinemia, endothelial dysfunction, and a more atherogenic profile seem to be peculiar features of subjects with asymptomatic CAD and restenosis carrying NOS3 gene variants.


2021 ◽  
Author(s):  
A.P. Vlasov ◽  
S.S. Al-Kubaysi ◽  
F.A. Ali Fuad ◽  
S.T. Al-Anbari ◽  
B.A. Fedotov

In order to determine the role of ENOS (C774T) gene polymorphism in the progression of acute peritonitis and the formation of complications, a clinical and biochemical study of 40 patients with acute peritonitis was conducted. As a result of the study, it was proved that the early period of acute peritonitis is characterized by the development of endogenous intoxication, intensification of oxidative phenomena, hypercoagulation of the homeostasis system and inhibition of fibrinolysis, and in patients with acute peritonitis, carriers of the pathological TT genotype of the endothelial nitric oxide synthase gene, more pronounced deviations of homeostatic parameters are observed. Key words: acute peritonitis, genotype, DNA diagnostics, genetic testing of genotypes.


2018 ◽  
Vol 19 (10) ◽  
pp. 3229 ◽  
Author(s):  
Francesco Villa ◽  
Albino Carrizzo ◽  
Anna Ferrario ◽  
Anna Maciag ◽  
Monica Cattaneo ◽  
...  

Evolutionary forces select genetic variants that allow adaptation to environmental stresses. The genomes of centenarian populations could recapitulate the evolutionary adaptation model and reveal the secrets of disease resistance shown by these individuals. Indeed, longevity phenotype is supposed to have a genetic background able to survive or escape to age-related diseases. Among these, cardiovascular diseases (CVDs) are the most lethal and their major risk factor is aging and the associated frailty status. One example of genetic evolution revealed by the study of centenarians genome is the four missense Single Nucleotide Polymorphisms (SNPs) haplotype in bactericidal/permeability-increasing fold-containing family B, member 4 (BPIFB4) locus that is enriched in long living individuals: the longevity associated variant (LAV). Indeed, LAV-BPIFB4 is able to improve endothelial function and revascularization through the increase of endothelial nitric oxide synthase (eNOS) dependent nitric oxide production. This review recapitulates the beneficial effects of LAV-BPIFB4 and its therapeutic potential for the treatment of CVDs.


2011 ◽  
Vol 31 (2) ◽  
pp. 83-89 ◽  
Author(s):  
Lizbeth Díaz-Olguín ◽  
Ramón Mauricio Coral-Vázquez ◽  
Thelma Canto-Cetina ◽  
Samuel Canizales-Quinteros ◽  
Belem Ramírez Regalado ◽  
...  

Preeclampsia is a specific disease of pregnancy and believed to have a genetic component. The aim of this study was to investigate if three polymorphisms ineNOSor their haplotypes are associated with preeclampsia in Maya mestizo women.A case-control study was performed where 127 preeclamptic patients and 263 controls were included. Genotyped and haplotypes for the -768T→C, intron 4 variants, Glu298Asp ofeNOSwere determined by PCR and real-time PCR allelic discrimination. Logistic regression analysis with adjustment for age and body mass index (BMI) was used to test for associations between genotype and preeclampsia under recessive, codominant and dominant models. Pairwise linkage disequilibrium between single nucleotide polymorphisms was calculated by direct correlationr2, and haplotype analysis was conducted.Women homozygous for the Asp298 allele showed an association of preeclampsia. In addition, analysis of the haplotype frequencies revealed that the -786C-4b-Asp298 haplotype was significantly more frequent in preeclamptic patients than in controls (0.143 vs. 0.041, respectively; OR = 3.01; 95% CI = 1.74–5.23;P= 2.9 × 10−4).Despite the Asp298 genotype in a recessive model associated with the presence of preeclampsia in Maya mestizo women, we believe that in this population the -786C-4b-Asp298 haplotype is a better genetic marker.


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