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Yi K, Wang W, Zhang X, Dong X, Fan Z, Ma Y, Gao J, Li X, You T. Association between NOS3 gene polymorphisms and genetic susceptibility to congenital heart Disease: A systematic review and meta-analysis. Cytokine 2024; 173:156415. [PMID: 37952311 DOI: 10.1016/j.cyto.2023.156415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 10/08/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Endothelial nitric oxide (NO) produced by endothelial Nitric Oxide Synthase (eNOS) can promote the expression of pro-angiogenic cytokines and is favorable for angiogenesis. However, the relationship between NOS3 gene polymorphisms and genetic susceptibility to congenital heart disease (CHD) was still unclear. METHODS We searched five databases including Pubmed, Cochrane Library, Embase, Web of Science, CNKI, and Wan Fang, to find all studies on NOS3 gene polymorphisms and CHD. Rstudio was used to merge the data included in the study to obtain OR, 95%CI, and forest plots. RESULTS Five relevant literatures were included, including three sites of NOS3 gene, rs1799983 (G894T), rs2070744 (T-786C), and rs7830 (G10T). Several models including the homozygous model of rs1799983 (G894T) gene polymorphism (TT VS GG: OR = 1.602, 95%CI: 1.098 ∼ 2.337, P = 0.027), rs7830 (G10T) gene polymorphism allele model (A VS C: OR = 1.171, 95%CI: 1.029 ∼ 1.333, P = 0.017), homozygous model (AA VS CC: OR = 1.474, 95%CI: 1.122 ∼ 1.936, P = 0.005) and implicit model (AA VS CC + AC: OR = 1.451, 95%CI: 1.133 ∼ 1.859, P = 0.003) indicated that there was a correlation. The results of the combined analysis of each gene model of rs2070744 (T-786C) gene polymorphism sites were not statistically significant, and their P values were all>0.05. CONCLUSION rs1799983 (G894T) and rs7830 (G10T) polymorphic sites might play a role in the susceptibility of sporadic congenital heart disease and increase the risk of CHD. Yet, it is still necessary to expand the sample size and conduct more prospective/retrospective studies to confirm whether the rs2070744 (T-786C) polymorphism tended to increase the incidence of CHD.
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Affiliation(s)
- Kang Yi
- Department of Cardiovascular Surgery, Gansu Provincial Hospital, Lanzhou, Gansu, China; Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China
| | - Wei Wang
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Department of Cardiac Surgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xin Zhang
- Department of Cardiovascular Surgery, Gansu Provincial Hospital, Lanzhou, Gansu, China; Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; The First School of Clinical Medical of Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Xin Dong
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Department of Ultrasound, Gansu Provincial Hospital, Lanzhou, Gansu, China
| | - Zhengye Fan
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Department of Cardiothoracic Surgery, The First People's Hospital of Longnan, Gansu, China
| | - Yuhu Ma
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Jie Gao
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Department of Pediatrics, First Affiliated Hospital of SunYat-sen University, Guangzhou, China
| | - Xinyao Li
- Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China; Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tao You
- Department of Cardiovascular Surgery, Gansu Provincial Hospital, Lanzhou, Gansu, China; Gansu International Scientific and Technological Cooperation Base of Diagnosis and Treatment of Congenital Heart Disease, Lanzhou, Gansu, China.
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Karami B, Azimi A, Rahimi Z, Mahmoudi S, Jalilian N. Contribution of NOS3AS Variants to Susceptibility to Essential Hypertension: A Study in Kermanshah Province, Western Iran. Biochem Genet 2023; 61:2149-2158. [PMID: 36966459 DOI: 10.1007/s10528-023-10364-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/09/2023] [Indexed: 03/27/2023]
Abstract
Hypertension (HTN) is a global health challenge and increase the risk of cardiovascular disease. Hypertension has a multifactorial course of evolution, with both genetic and environmental factors playing an important role. To date, a number of genes and pathways have been proposed to be associated with HTN, among which is Nitric Oxide pathway. NO levels can be regulated by reactive oxygen species (ROS), superoxide and post-transcriptional mechanisms, including sense-anti sense interactions. NOS3AS gene encodes an antisense RNA (sONE) which is complementary to NOS3 transcript in 662 nucleotides and may regulate NOS3 in a post-transcriptional manner. In this study, we sought to define the role of NOS3AS in the pathophysiology of essential HTN. A total of 131 cases with hypertension and 115 controls were enrolled in the study. Peripheral blood was drawn from all study participants after signing the informed consent form. Three variants (rs71539868, rs12666075 and rs7830) were investigated by Tetra-ARMS PCR method. The results were then statistically analyzed. We found statistically significant association between rs7830 TT genotype, rs12666075 GT and TT genotypes with susceptibility to HTN. We failed to observe association between rs71539868 and susceptibility to HTN. The present study showed a strong association between NOS3AS variants and susceptibility to hypertension in the population of Kermanshah province. Our results may shed more light on the mechanisms of disease development and may also help to better identify genetic predispositions and individuals at risk.
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Affiliation(s)
- Bahareh Karami
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Azam Azimi
- Medical Genetics Laboratory, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zohreh Rahimi
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sousan Mahmoudi
- Cardiovascular Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nazanin Jalilian
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Li R, Zhao A, Diao X, Song J, Wang C, Li Y, Qi X, Guan Z, Zhang T, He Y. Polymorphism of NOS3 gene and its association with essential hypertension in Guizhou populations of China. PLoS One 2023; 18:e0278680. [PMID: 36758021 PMCID: PMC9910734 DOI: 10.1371/journal.pone.0278680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 11/21/2022] [Indexed: 02/10/2023] Open
Abstract
OBJECTIVE A case-control study was conducted to evaluate the relationship between endothelial nitric oxide synthase (NOS3) gene polymorphism and essential hypertension in the Han, Miao, and Buyi populations in Guizhou China. METHODS DNA was collected from the blood samples of 353 essential hypertension patients and 342 healthy controls from Guizhou province of China. Eight polymorphisms of the NOS3 gene were genotyped using the Sequenom MassARRAY platform. For genetic analysis, SPSS 26.0, Haploview, SNPStats, SHEsis, and MDR were utilized. RESULTS All SNPs (rs11771443, rs1808593, rs753482, rs3918186, rs3918188, rs3918227, rs7830, and rs891512) satisfied the Hardy-Weinberg equilibrium test (P > 0.05). The allele and genotype frequencies of rs7830 and rs1808593 in case-control groups demonstrated significant differences (P < 0.05). Compared to the TT genotype of rs1808593, the TG or GG genotype reduced the risk of hypertension in the Miao population (OR = 0.410, 95% CI: 0.218-0.770, P = 0.006). Compared to the GG or GT genotype of rs7830, the TT genotype increased the risk of hypertension in the overall populations (OR = 1.716, 95%CI: 1.139-2.586, P = 0.010). The CATT (rs3918227-rs391818186-rs1808593-rs7830) haplotype was a risk factor for hypertension in the Miao and Han populations (OR = 1.471, 95%CI: 1.010-2.143, P = 0.044 and OR = 1.692, 95%CI: 1.124-2.545, P = 0.011). The CAGG haplotype in the Miao population was a protective factor against hypertension (OR = 0.555, 95%CI: 0.330-0.934, P = 0.025). The rs3918188, rs1808593, and rs7830 in the Miao population showed an interaction effect on hypertension (P < 0.001). The rs11771443, rs3918188, and rs7830 in the Buyi and Han populations showed an interaction effect on hypertension (P = 0.013 and P < 0.001). CONCLUSION The single nucleotide polymorphisms rs1808593 and rs7830 of NOS3 gene are associated with essential hypertension in Guizhou ethnic populations.
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Affiliation(s)
- Ruichao Li
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ansu Zhao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiaoyan Diao
- Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Juhui Song
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Chanjuan Wang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yanhong Li
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiaolan Qi
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhizhong Guan
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ting Zhang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
- * E-mail: (YH); (TZ)
| | - Yan He
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, & Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou, China
- * E-mail: (YH); (TZ)
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The Role of Single Nucleotide Variants of NOS1, NOS2, and NOS3 Genes in the Development of the Phenotype of Migraine and Arterial Hypertension. Brain Sci 2021; 11:brainsci11060753. [PMID: 34200123 PMCID: PMC8228947 DOI: 10.3390/brainsci11060753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/30/2021] [Accepted: 06/03/2021] [Indexed: 12/12/2022] Open
Abstract
Migraine (M) and arterial hypertension (AH) are very common diseases. Today, there are a number of studies confirming and explaining their comorbidity. We searched PubMed, Springer, Scopus, Web of Science, Clinicalkeys, and Google Scholar databases for full-text English publications over the past 15 years using keywords and their combinations. The present review provides a synthesis of information about single nucleotide variants (SNVs) of NOS1, NOS2, and NOS3 genes involved in the development of M and essential AH. The results of studies we have discussed in this review are contradictory, which might be due to different designs of the studies, small sample sizes in some of them, as well as different social and geographical environments. Despite a high prevalence of the M and AH phenotype, its genetic markers have not yet been sufficiently studied. Specifically, there are separate molecular genetic studies aimed to identify SNVs of NOS1, NOS2, and NOS3 genes responsible for the development of M and those responsible for the development of AH. However, these SNVs have not been studied in patients with the phenotype of M and AH. In this review, we identify the SNVs that would be the most interesting to study in this aspect. Understanding the role of environmental factors and genetic predictors will contribute to a better diagnostics and exploration of new approaches to pathogenetic and disease-modifying treatment of the M and AH phenotype.
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Farbood Z, Sabeti Aghabozorgi A, Nejatizadeh A, Farshidi H, Shams L, Bahreyni A, Mansouri Babamansouri E, Shekari M. Endothelial Nitric Oxide Synthase Gene Polymorphisms (- 922A > G, - 786 T > C, Intron 4 b/a VNTR and 894 G > T) and Essential Hypertension: An Association Study with Haplotypes Analysis. Biochem Genet 2020; 58:518-532. [PMID: 32519277 DOI: 10.1007/s10528-020-09953-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 02/12/2020] [Indexed: 11/26/2022]
Abstract
Endothelial Nitric Oxide Synthase (eNOS) is an indispensable regulator of blood pressure through producing Nitric Oxide (NO). There is some evidence to suggest that eNOS gene polymorphisms are associated with Essential Hypertension (EHT). In this study, the potential association between eNOS 4a/4b, A922G, G894T, T786C gene polymorphisms and EHT as individual risk factors and as haplotypes are examined in the southern population of Iran (Bandar-Abbas). In this study, 200 EHT patients and 200 normotensive subjects which were matched for age and sex were included. Genotyping was performed by either utilizing Polymerase Chain Reaction (PCR) or PCR followed by Restriction Fragment length Polymorphism (RFLP) method. Our results demonstrated statistically significant associations between T786C, G894T, and 4a/4a and EHT (p < 0.05); however, A922G had no significant association with EHT (p > 0.05). Haplotype analysis also suggested that - 786C/- 922A/4a, - 786C/- 922A/4b and - 786C/- 922G/4a haplotypes were more frequent in EHT group than control group, hypothesizing a positive association with EHT. The present study has identified that the eNOS genetic variations are associated with EHT in southern population of Iran (Bandar-Abbas). These findings also suggested that a number of haplotypes of eNOS gene may be a driving factor for EHT susceptibility in respected population.
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Affiliation(s)
- Zahra Farbood
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | | | - Azim Nejatizadeh
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Hossein Farshidi
- Hormozgan Cardiovascular Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Leila Shams
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amirhossein Bahreyni
- Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Mohammad Shekari
- Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
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Mehrabi Pour M, Nasiri M, Kamfiroozie H, Zibaeenezhad MJ. Association of the ATG9B gene polymorphisms with coronary artery disease susceptibility: A case-control study. J Cardiovasc Thorac Res 2019; 11:109-115. [PMID: 31384404 PMCID: PMC6669433 DOI: 10.15171/jcvtr.2019.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 06/17/2019] [Indexed: 12/16/2022] Open
Abstract
Introduction: Endothelial nitric oxide synthase (eNOS), the main regulator of cardiac cell functioning, is regulated post-transcriptionally by autophagy-related 9B (ATG9B) gene. The proper function of the heart is partly determined by the intact interaction of these molecules. The present study aimed to investigate the effects of ATG9B rs2373929 and rs7830 gene polymorphisms on the predisposition to coronary artery disease (CAD).
Methods: In this hospital-based case-control study, 150 patients with CAD compared with 150 healthy subjects for the genotype distributions of rs2373929 and rs7830 polymorphisms using T-ARMS PCR and ARMS PCR, respectively.
Results: Considering rs2373929 polymorphism, increased risk of CAD observed in the presence of TT genotype (OR: 3.65; 95% CI: 1.77-7.53; P < 0.001) and also in the recessive model for T allele (OR: 3.41; 95% CI: 1.76- 6.60; P < 0.001). The frequency of the T allele was higher in cases compared to controls (OR: 1.71; 95% CI: 1.24-2.28; P = 0.001). The genotype and allele frequencies of the rs7830 polymorphism did not differ between the two study groups.
Conclusion: The ATG9B gene rs2373929 polymorphism might involve in the pathogenesis of the CAD and can be considered as a screening molecular marker in the subjects prone to CAD.
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Affiliation(s)
- Mahsa Mehrabi Pour
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Mahboobeh Nasiri
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Hajar Kamfiroozie
- Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Mirenayat MS, Moradi S, Mohammadi H, Rouhani MH. Effect of L-Citrulline Supplementation on Blood Pressure: a Systematic Review and Meta-Analysis of Clinical Trials. Curr Hypertens Rep 2018; 20:98. [DOI: 10.1007/s11906-018-0898-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Xie X, Shi X, Xun X, Rao L. Endothelial nitric oxide synthase gene single nucleotide polymorphisms and the risk of hypertension: A meta-analysis involving 63,258 subjects. Clin Exp Hypertens 2017; 39:175-182. [PMID: 28287883 DOI: 10.1080/10641963.2016.1235177] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiaochuan Xie
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaohan Shi
- Division of Reproductive Medical Center, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoshuang Xun
- West China School of Public Health, Sichuan University, Chengdu, Sichuan, China
| | - Li Rao
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Wang L, Shen C, Yang S, Chen Y, Guo D, Jin Y, He L, Chen J, Zhao X, Zhao H, Yao Y. Association study of NOS3 gene polymorphisms and hypertension in the Han Chinese population. Nitric Oxide 2015; 51:1-6. [PMID: 26391643 DOI: 10.1016/j.niox.2015.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 09/08/2015] [Accepted: 09/15/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Recent studies have reported that NOS3 plays an important role in cardiovascular pathology, whereas the association of NOS3 and hypertension (HT) has been controversial between African Americans and European whites. Here, we aimed to further investigate the genetic effect of unexplored loci at NOS3 on the susceptibility of HT in the Han Chinese population. METHODS AND RESULTS The association of three polymorphisms; rs4496877, rs1808593 and rs3918186 to HT was tested in a case control study that included 2012 HT cases and 2210 controls. Association analysis showed that there was no significant association between rs4496877, rs1808593 and rs3918186 of NOS3 and HT in the whole study population. Stratification analysis indicated that rs3918186 was significantly associated with HT in the ≥55-year-old population (OR = 1.245, 95% CI = 1.010-1.534, P = 0.04). The rs4496877 and rs1808593 were significantly associated with HT in the male population (P = 0.015) and <55-year-old population (P = 0.025), respectively (OR = 3.254, 95% CI = 1.257-8.425 and OR = 1.683, 95% CI = 1.066-2.657, respectively). Quantitative trait analysis showed that there were significant differences in systolic blood pressure (SBP) among the genotypes (AA, AT and TT) of rs3918186 in the non-intervention populations (P = 0.016). GMDR analysis showed that drinking and rs3918186 had significant interaction effects for risk of HT. CONCLUSIONS The findings of this study indicated that the rs4496877, rs1808593 and rs3918186 polymorphisms of NOS3 contribute to the genetic susceptibility of HT and that rs3918186 was associated with SBP in the Chinese population. Age and gender might modify the genetic effect of NOS3 on HT, and drinking significantly interacts with rs3918186.
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Affiliation(s)
- Linhong Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Wannan Medical College, Wuhu 241001, China
| | - Chong Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 210029, China
| | - Song Yang
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing 214200, China
| | - Yanchun Chen
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing 214200, China
| | - Daoxia Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Wannan Medical College, Wuhu 241001, China
| | - Yuelong Jin
- Department of Epidemiology and Biostatistics, School of Public Health, Wannan Medical College, Wuhu 241001, China
| | - Lianping He
- Department of Epidemiology and Biostatistics, School of Public Health, Wannan Medical College, Wuhu 241001, China
| | - Jinfeng Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 210029, China
| | - Xianghai Zhao
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing 214200, China
| | - Hailong Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 210029, China
| | - Yingshui Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Wannan Medical College, Wuhu 241001, China.
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Wen C, Lv JF, Wang L, Zhu WF, Wan FS, Wang XZ. Association of a methylene tetrahydrofolate reductase C677T polymorphism with several blood chemical levels in a Chinese population. Genet Test Mol Biomarkers 2015; 19:24-9. [PMID: 25489783 DOI: 10.1089/gtmb.2014.0213] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The methylene tetrahydrofolate reductase (MTHFR) C677T polymorphism is associated with hypertension in certain populations. This study investigated the relationship between the MTHFR polymorphism and hypertension and correlated blood lipid indexes, including homocysteine (HCY), lipoprotein (a) [Lp (a)], high-density lipoprotein (HDL), low-density lipoprotein (LDL), apolipoprotein A I (Apo AI), Apo B, glucose (GLU), total cholesterol (TC), and triglyceride (TG), in a Chinese population. MATERIALS AND METHODS A total of 174 patients with hypertension and 634 healthy control individuals from Jiangxi Province were recruited between June 2012 and September 2012 for genotyping of the MTHFR C677T polymorphism using polymerase chain reaction-restriction fragment length polymorphism. Biochemical parameters were also assessed in these subjects and statistically compared to the MTHFR C677T polymorphism and the risk for hypertension. RESULTS HCY and Lp (a) levels were significantly higher in subjects with a MTHFR 677TT genotype than in those with a CC/CT genotype, independent of hypertension. The frequency of the TT genotype and the T allele in hypertension patients was significantly higher than in the healthy controls. Furthermore, in the male hypertension patient group, the average levels of HCY, HDL, Apo AI, and TC were significantly different from those in female hypertension patients (pHCY=0.001, pHDL=0.004, pApo AI<0.001, pTC=0.012). In the male control group, the average levels of HCY, HDL, Apo AI, GLU, and TC were significantly different from those of female controls (pHCY<0.001, pHDL<0.001, pApo AI<0.001, pGLU=0.001, and pTC=0.004). CONCLUSION Our data demonstrate that the MTHFR C677T polymorphism is positively correlated with an increased risk of hypertension through an increase in HCY levels. The blood lipid correlative index was different between male and female hypertension patients and controls.
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Affiliation(s)
- Can Wen
- 1 Department of Clinical Laboratory Medicine, The Second Affiliated Hospital of Nanchang University , Nanchang, China
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Shim J, Park JH, Lee JY, Uhm JS, Joung B, Lee MH, Ellinor PT, Pak HN. eNOS3 Genetic Polymorphism Is Related to Post-Ablation Early Recurrence of Atrial Fibrillation. Yonsei Med J 2015; 56:1244-50. [PMID: 26256966 PMCID: PMC4541653 DOI: 10.3349/ymj.2015.56.5.1244] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 02/01/2023] Open
Abstract
PURPOSE Previous studies have demonstrated an association between eNOS polymorphisms and atrial fibrillation (AF). We sought to determine whether eNOS polymorphisms are associated with AF recurrence after a radiofrequency catheter ablation (RFCA). MATERIALS AND METHODS A total of 500 consecutive patients (56±11 years, 77% male) with paroxysmal (68%) or persistent (32%) AF who underwent RFCA and 500 age, gender-matched controls were genotyped for the eNOS3 single nucleotide polymorphism (rs1799983). AF recurrence was monitored according to 2012 ACC/AHA/ESC guidelines. RESULTS The frequencies of the rs1799983 variant alleles (T) in the case and control group were not significantly different (OR 1.05, 95% CI 0.75-1.46, p=0.798). AF patients with rs1799983 variants were more likely to have coronary artery disease or stroke than those without genetic variant at this gene (31.0% vs. 17.3%, p=0.004). During mean 17 months follow-up, early recurrence of AF (ERAF; within 3 months) and clinical recurrence (CR) of AF were 31.8% and 24.8%, respectively. The rs1799983 variant was associated with higher risk of ERAF (OR 1.71, 95% CI 1.06-2.79, p=0.028), but not with CR. ERAF occurred earlier (11±16 days) in variant group than those without variant allele (20±25 days, p=0.016). A multiple logistic regression analysis showed that presence of the rs1799983 variant (OR 1.75, 95% CI 1.07-2.86, p=0.026) and persistent AF were independent predictors for ERAF after AF ablation. CONCLUSION The rs1799983 variant of the eNOS3 gene was associated with ERAF, but not with CR, after RFCA. eNOS3 gene variants may have a potential role for stratification of post-ablation management.
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Affiliation(s)
- Jaemin Shim
- Department of Cardiology, Korea University Anam Hospital, Seoul, Korea
| | - Jae Hyung Park
- Department of Cardiology, Yonsei University Health System, Seoul, Korea
- Cardiovascular Genome Center, Yonsei University Health System, Seoul, Korea
| | - Ji-Young Lee
- Department of Cardiology, Yonsei University Health System, Seoul, Korea
- Cardiovascular Genome Center, Yonsei University Health System, Seoul, Korea
| | - Jae Sun Uhm
- Department of Cardiology, Yonsei University Health System, Seoul, Korea
| | - Boyoung Joung
- Department of Cardiology, Yonsei University Health System, Seoul, Korea
| | - Moon-Hyoung Lee
- Department of Cardiology, Yonsei University Health System, Seoul, Korea
| | - Patrick T Ellinor
- Cardiac Arrhythmia Service & Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Hui-Nam Pak
- Cardiovascular Genome Center, Yonsei University Health System, Seoul, Korea
- Department of Cardiology, Yonsei University Health System, Seoul, Korea.
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Azzam N, Zafrir B, Fares F, Smith Y, Salman N, Nevzorov R, Amir O. Endothelial nitric oxide synthase polymorphism and prognosis in systolic heart failure patients. Nitric Oxide 2015; 47:91-6. [PMID: 25917853 DOI: 10.1016/j.niox.2015.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/29/2015] [Accepted: 04/16/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND The endothelial nitric oxide synthase (eNOS) gene single nucleotide polymorphism G894T is associated with thrombotic vascular diseases. However, its functional significance is controversial and data are scarce concerning its influence in heart failure (HF). METHODS We studied 215 patients with chronic systolic HF. DNA was analyzed for eNOS gene G894T polymorphism using PCR and DNA sequencing. Evaluation of clinical characteristics and analysis of factors associated with 2-year mortality were performed for the homozygous G-allele G894T variant (GG), relative to the TT and GT variants. RESULTS The genotype distributions of eNOS G894T alleles were: GG 135 patients (63%) and TT/GT 80 (37%). Two-year mortality was significantly higher in the GG variant (48%) than the combined TT/GT group (32%). The usage of nitrates was associated with increased 2-year mortality (HR 2.0, 95% CI 1.28-3.17; p = 0.003), which was most significant in the GG group treated with nitrates (73.5%) in comparison to the TT/GT group not treated with nitrates (34%); HR 2.75, 95% CI 1.57-4.79, P < 0.001. CONCLUSIONS Homozygosity for the G allele of the eNOS G894T polymorphism was associated with worse survival in systolic HF patients, especially in those treated with nitrates. ENOS polymorphism may result in different mechanistic interactions in HF than in thrombotic vascular diseases, suggesting that overexpression of NO may be associated with deleterious effects in systolic HF.
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Affiliation(s)
- Naiel Azzam
- Department of Human Biology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel; Department of Molecular Genetics, Carmel Medical Center, Haifa, Israel
| | - Barak Zafrir
- Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center, Haifa, Israel; Ruth and Bruce Rappaport School of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Fuad Fares
- Department of Human Biology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel; Department of Molecular Genetics, Carmel Medical Center, Haifa, Israel
| | - Yoav Smith
- Genomic Data Analysis Unit, Hadassah Medical School, Hebrew University of Jerusalem, Israel
| | - Nabeeh Salman
- Department of Cardiovascular Medicine, Poriya Medical Center, Tiberius, Israel; Faculty of Medicine, Bar-Ilan University, Israel
| | - Roman Nevzorov
- Department of Cardiovascular Medicine, Poriya Medical Center, Tiberius, Israel; Faculty of Medicine, Bar-Ilan University, Israel
| | - Offer Amir
- Department of Cardiovascular Medicine, Poriya Medical Center, Tiberius, Israel; Faculty of Medicine, Bar-Ilan University, Israel.
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13
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Analysis of human bradykinin receptor gene and endothelial nitric oxide synthase gene polymorphisms in end-stage renal disease among malaysians. Balkan J Med Genet 2014; 17:37-40. [PMID: 25741213 PMCID: PMC4347475 DOI: 10.2478/bjmg-2014-0023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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.
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14
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Singh M, Singh P, Singh S, Juneja PK, Kaur T. A susceptibility haplotype within the endothelial nitric oxide synthase gene influences bone mineral density in hypertensive women. J Bone Miner Metab 2014; 32:580-7. [PMID: 24213141 DOI: 10.1007/s00774-013-0533-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022]
Abstract
The influence of the coordinated effect of various single-nucleotide polymorphisms (SNPs) within the endothelial nitric oxide synthase (eNOS) gene on the risk of osteoporosis in hypertension has remained undetermined. Four pertinent SNPs of the eNOS gene, rs2070774, rs1799983, rs1800780 and rs3918181, were examined for the risk of osteoporosis in 313 hypertensive postmenopausal women in Northwest India. All the hypertensive women were verified with dual energy X-ray absorptiometry and categorized as 150 with osteoporosis and 163 without osteoporosis. The minor allele (T) of rs1799983 exerts a statistically significant risk for osteoporosis both in dominant [odds ratio (OR) 3.71, 95 % confidence interval (CI) 2.12-6.49, P < 0.001] and recessive mode (OR 5.75, 95 % CI 1.24-26.69, P = 0.036) after Bonferroni correction. Bone mineral density (BMD) values (corrected for the effects of risk variables) according to eNOS SNP genotypes revealed a significant association with rs1799983 at both the lumbar spine (P = 0.001) and femoral neck (P = 0.023). Risk association analyses revealed a susceptibility haplotype TTAG which influences the risk of osteoporosis (OR 2.02, 95 % CI 1.05-3.39, P = 0.042) in hypertension after adjusting for the effects of risk factors. Furthermore, this haplotype was significantly associated with BMD at the lumbar spine (P = 0.029) and femoral neck (P = 0.021) in a dose-dependent manner. The results suggest that possession of the TTAG haplotype of the eNOS gene may increase the risk of osteoporosis two-fold in hypertensive postmenopausal women in Northwest India.
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Affiliation(s)
- Monica Singh
- Molecular Genetics Laboratory, Department of Human Genetics, Punjabi University, Patiala, 147002, Punjab, India
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15
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Fang C, Ren X, Zhou H, Gong ZC, Shen L, Bai J, Yin JY, Qu J, Li XP, Zhou HH, Liu ZQ. Effects ofeNOSrs1799983 andACErs4646994 polymorphisms on the therapeutic efficacy of salvianolate injection in Chinese patients with coronary heart disease. Clin Exp Pharmacol Physiol 2014; 41:558-64. [PMID: 24827774 DOI: 10.1111/1440-1681.12257] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 04/18/2014] [Accepted: 05/02/2014] [Indexed: 01/03/2023]
Affiliation(s)
- Chao Fang
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
- Institute of Clinical Pharmacology; Central South University; Changsha China
- Hunan Key Laboratory of Pharmacogenetics; Central South University; Changsha China
| | - Xian Ren
- Shanghai Green Valley Pharmaceutical Co. Ltd; Shanghai China
| | - Huan Zhou
- Department of Cardiology; Xiangya Hospital; Central South University; Changsha China
| | - Zhi-Cheng Gong
- Department of Pharmacy; Xiangya Hospital; Central South University; Changsha China
| | - Li Shen
- Department of Cardiology; The Third Hospital of Changsha; Changsha China
| | - Jing Bai
- School of Basic Medical Sciences; Beijing University of Chinese Medicine; Beijing China
| | - Ji-Ye Yin
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
| | - Jian Qu
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
| | - Xiang-Ping Li
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
| | - Zhao-Qian Liu
- Department of Clinical Pharmacology; Xiangya Hospital; Central South University; Changsha China
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16
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Ogretmen Z, Hiz MM, Silan F, Uludag A, Ozdemirc O. Association of endothelial nitric oxide synthase Glu298Asp gene polymorphism in psoriasis cases with hypertension. Ann Saudi Med 2014; 34:340-5. [PMID: 25811208 PMCID: PMC6152563 DOI: 10.5144/0256-4947.2014.340] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Psoriasis is a common autoimmune-mediated chronic, inflammatory skin disease. Although, the molecular mechanism is not completely understood, psoriasis is caused by genetic and non-genetic parameters. The current study aimed (1) to define genotype and allele frequency of endothelial nitric oxide synthase (eNOS Glu298Asp) gene polymorphism in hypertensive and/or non-hypertensive psoriatic patients (2) to investigate the possible relationship between the eNOS Glu298Asp polymorphism and the risk of hypertension among psoriatic patients in the Turkish population. DESIGN AND SETTINGS This cross-sectional, case-control study was performed between March 2010 and November 2012 at the University hospital in Çanakkale, Turkey Patients and Methods: Gene profiles of 75 psoriatic patients (21 hypertensive and 54 normotensive pa.tients) and 55 healthy (normotensive and non-psoriatic) volunteers were compared. Peripheral blood-EDTA samples were used for total genomic DNA isolation and genotyping. Target eNOS gene was genotyped for patients and control groups by real-time PCR melting-curve analysis system (LightCycler 2.0,Roche, Germany, and results were compared statistically. RESULTS An increased T allele frequency in eNOS Glu298Asp single-nucleotide polymorphism (SNP) was determined in psoriatic patients when compared with normotensive non-psoriatic healthy volunteers (OR 2.3, CI 1.14-3.99), (P=.017). The T allele frequency was also found to be increased in hypertensive psoriatic patients when compared with healthy volunteers (4.83-fold increased, 95% CI 1.62-14.43 ([P=.003]) and normotensive psoriatic patients (3.03-fold increased, 95% CI 1.03-8.94 [P=.041]), respectively. CONCLUSION The current preliminary results suggested that there was a correlation between eNOS Glu298Asp polymorphism and hypertension among psoriatic patients in the Turkish population. The T allele frequency of eNOS Glu298Asp SNP was different in hypertensive psoriatic patients, and the difference was statistically significant when compared with the normotensive psoriatic patients and healthy controls. These results need to be confirmed by large-scale studies.
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Affiliation(s)
| | - Meliha Merve Hiz
- Dr. Meliza M. Hiz, Department of Molecular Biology and Genetics, Canakkale Onsekiz Mart University, Canakkale 17100, Burslem, Turkey, T: +905332444545, ,
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Liu J, Wang L, Liu Y, Wang Z, Li M, Zhang B, Wang H, Liu K, Wen S. The association between endothelial nitric oxide synthase gene G894T polymorphism and hypertension in Han Chinese: a case-control study and an updated meta-analysis. Ann Hum Biol 2014; 42:184-94. [PMID: 24846690 DOI: 10.3109/03014460.2014.911958] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
UNLABELLED Abstract Background: The G894T (rs1799983) polymorphism in endothelial nitric oxide synthase (eNOS/NOS3) gene has been implicated in susceptibility to essential hypertension (EH) in some studies, but no clear consensus has been reached in the Chinese population. AIMS This study aimed to investigate the association of the G894T polymorphism and EH in Han Chinese. SUBJECTS AND METHODS First, a case-control study was performed involving 1525 subjects in northern Han Chinese to study the association between G894T variants and EH and then a meta-analysis was conducted of all available studies in Han Chinese. A total of 25 studies comprising 13,443 subjects were finally included in this meta-analysis. RESULTS The present case-control study failed to show significant association of G894T variant with EH in northern Han Chinese. The subsequent meta-analysis showed that this polymorphism might be associated with EH in Han Chinese (p < 0.001, OR = 1.32), especially in southern Han Chinese (p < 0.001, OR = 1.59), but not in northern Han Chinese (p = 0.12, OR = 1.16). The meta-regression analysis suggested that the geographic difference of subjects was related to heterogeneity (p = 0.029). CONCLUSIONS The relationship between the G894T polymorphism and hypertension in Han Chinese may be attributed to the difference in geographic background of subjects. It is necessary to carry out further research with a large sample size and focusing on gene-environment interactions.
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Affiliation(s)
- Jielin Liu
- Department of Hypertension Research, Beijing Anzhen Hospital, Capital Medical University and Beijing Institute of Heart Lung and Blood Vessel Diseases , Beijing , PR China and
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Pin1, endothelial nitric oxide synthase, and amyloid-β form a feedback signaling loop involved in the pathogenesis of Alzheimer’s disease, hypertension, and cerebral amyloid angiopathy. Med Hypotheses 2014; 82:145-50. [DOI: 10.1016/j.mehy.2013.11.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/07/2013] [Accepted: 11/23/2013] [Indexed: 11/20/2022]
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Genetic association of rs1800780 (A→G) polymorphism of the eNOS gene with susceptibility to essential hypertension in a Chinese Han population. Biochem Genet 2013; 52:71-8. [PMID: 24292621 DOI: 10.1007/s10528-013-9628-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
Abstract
To investigate the association of eNOS gene polymorphism with essential hypertension in the Chinese Han population, we examined polymorphisms of the rs2070744 (T→C), rs1800780 (A→G), and rs3918181 (A→G) loci. The results demonstrated that the genotypic frequency at the rs1800780 (A→G) locus was significantly different between patients with essential hypertension and the control cohorts (P < 0.05); while genotypic frequencies and allelic frequencies at rs2070744 (T→C) and rs3918181 (A→G) loci had no statistical difference between the patient group and controls (P > 0.05). In addition, haplotype analysis found a statistically significant difference for haplotype TGA, with OR (95% CI) of 1.549 (1.116-2.150) (P < 0.05). These findings suggest that polymorphism of rs1800780 (A→G) in the eNOS gene may be one of the most important genetic factors associated with essential hypertension susceptibility, and those who have haplotype TGA may be at risk to develop essential hypertension.
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20
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Fares F, Smith Y, Azzam N, Zafrir B, Lewis BS, Amir O. The 894G Allele of the Endothelial Nitric Oxide Synthase 3 (eNOS) is Associated with Atrial Fibrillation in Chronic Systolic Heart Failure. J Atr Fibrillation 2012; 5:757. [PMID: 28496799 DOI: 10.4022/jafib.757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Revised: 12/07/2012] [Accepted: 12/09/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) in patients with heart failure signals poor prognosis. The endothelial nitric oxide synthase (eNOS) enzyme is a key player in the counterregulation of oxidative stress, which is related in part to AF pathogenesis. The purpose of this study was to investigate a possible clinical association in heart failure patients between the presence of exon 7 G894T eNOS polymorphism, known to result in the Glu298Asp protein variant, and the occurrence of AF. METHODS We analyzed the DNA of 344 patients with chronic systolic heart failure for exon 7 G894T eNOS polymorphism, using PCR. Odds ratios for AF were calculated for the homo- and heterozygous G-allele G894T variants relative to the TT variant. RESULTS Of the 344 patients, 204 (59%) were homozygous for the G allele, 122 (36%) were heterozygous (GT), and 18 (5%) were homozygous for the T allele. AF episodes were documented in 73 patients (36%) with the GG genotype, in 35 (29%) with GT, and in 2 (11%) with TT. The odds ratio for AF, based on the presence of at least one G allele in the eNOS 894 gene, was 3.96 (95% confidence interval, 1.17‒13.56, p=0.04). Having two G alleles increased the odds ratio to 4.5 (95% confidence interval, 1.0‒20.0, p=0.02). CONCLUSION Patients with systolic heart failure demonstrate strong correlation between AF and the presence of a G allele in the exon 7 G894T eNOS genotype. These findings support the importance of eNOS polymorphism in the pathogenesis of AF in heart failure patients.
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Affiliation(s)
- Fuad Fares
- Department of Human Biology, Faculty of Natural Sciences, University of Haifa and Department of Molecular Genetics, Carmel Medical Center, Haifa, Israel
| | - Yoav Smith
- Genomic Data Analysis Unit, Hadassah Medical School, Hebrew University of Jerusalem, Israel
| | - Naiel Azzam
- Department of Human Biology, Faculty of Natural Sciences, University of Haifa and Department of Molecular Genetics, Carmel Medical Center, Haifa, Israel
| | - Barak Zafrir
- Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center, and Ruth and Bruce Rappaport School of Medicine, Technion‒Israel Institute of Technology, Haifa, Israel.,Heart Failure Center, Lin Medical Center, Haifa, Israel
| | - Basil S Lewis
- Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center, and Ruth and Bruce Rappaport School of Medicine, Technion‒Israel Institute of Technology, Haifa, Israel
| | - Offer Amir
- Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center, and Ruth and Bruce Rappaport School of Medicine, Technion‒Israel Institute of Technology, Haifa, Israel.,Heart Failure Center, Lin Medical Center, Haifa, Israel
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Salvi E, Kutalik Z, Glorioso N, Benaglio P, Frau F, Kuznetsova T, Arima H, Hoggart C, Tichet J, Nikitin YP, Conti C, Seidlerova J, Tikhonoff V, Stolarz-Skrzypek K, Johnson T, Devos N, Zagato L, Guarrera S, Zaninello R, Calabria A, Stancanelli B, Troffa C, Thijs L, Rizzi F, Simonova G, Lupoli S, Argiolas G, Braga D, D'Alessio MC, Ortu MF, Ricceri F, Mercurio M, Descombes P, Marconi M, Chalmers J, Harrap S, Filipovsky J, Bochud M, Iacoviello L, Ellis J, Stanton AV, Laan M, Padmanabhan S, Dominiczak AF, Samani NJ, Melander O, Jeunemaitre X, Manunta P, Shabo A, Vineis P, Cappuccio FP, Caulfield MJ, Matullo G, Rivolta C, Munroe PB, Barlassina C, Staessen JA, Beckmann JS, Cusi D. Genomewide association study using a high-density single nucleotide polymorphism array and case-control design identifies a novel essential hypertension susceptibility locus in the promoter region of endothelial NO synthase. Hypertension 2011; 59:248-55. [PMID: 22184326 DOI: 10.1161/hypertensionaha.111.181990] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Essential hypertension is a multifactorial disorder and is the main risk factor for renal and cardiovascular complications. The research on the genetics of hypertension has been frustrated by the small predictive value of the discovered genetic variants. The HYPERGENES Project investigated associations between genetic variants and essential hypertension pursuing a 2-stage study by recruiting cases and controls from extensively characterized cohorts recruited over many years in different European regions. The discovery phase consisted of 1865 cases and 1750 controls genotyped with 1M Illumina array. Best hits were followed up in a validation panel of 1385 cases and 1246 controls that were genotyped with a custom array of 14 055 markers. We identified a new hypertension susceptibility locus (rs3918226) in the promoter region of the endothelial NO synthase gene (odds ratio: 1.54 [95% CI: 1.37-1.73]; combined P=2.58 · 10(-13)). A meta-analysis, using other in silico/de novo genotyping data for a total of 21 714 subjects, resulted in an overall odds ratio of 1.34 (95% CI: 1.25-1.44; P=1.032 · 10(-14)). The quantitative analysis on a population-based sample revealed an effect size of 1.91 (95% CI: 0.16-3.66) for systolic and 1.40 (95% CI: 0.25-2.55) for diastolic blood pressure. We identified in silico a potential binding site for ETS transcription factors directly next to rs3918226, suggesting a potential modulation of endothelial NO synthase expression. Biological evidence links endothelial NO synthase with hypertension, because it is a critical mediator of cardiovascular homeostasis and blood pressure control via vascular tone regulation. This finding supports the hypothesis that there may be a causal genetic variation at this locus.
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Affiliation(s)
- Erika Salvi
- Department of Medicine, Surgery, and Dentistry, Graduate School of Nephrology, University of Milano, Division of Nephrology, San Paolo Hospital, Milano, Viale Ortles 22/4, 20139 Milano, Italy
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