1
|
Imai Y, Kusano K, Aiba T, Ako J, Asano Y, Harada-Shiba M, Kataoka M, Kosho T, Kubo T, Matsumura T, Minamino T, Minatoya K, Morita H, Nishigaki M, Nomura S, Ogino H, Ohno S, Takamura M, Tanaka T, Tsujita K, Uchida T, Yamagishi H, Ebana Y, Fujita K, Ida K, Inoue S, Ito K, Kuramoto Y, Maeda J, Matsunaga K, Neki R, Sugiura K, Tada H, Tsuji A, Yamada T, Yamaguchi T, Yamamoto E, Kimura A, Kuwahara K, Maemura K, Minamino T, Morisaki H, Tokunaga K. JCS/JCC/JSPCCS 2024 Guideline on Genetic Testing and Counseling in Cardiovascular Disease. Circ J 2024:CJ-23-0926. [PMID: 39343605 DOI: 10.1253/circj.cj-23-0926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Affiliation(s)
- Yasushi Imai
- Division of Clinical Pharmacology and Division of Cardiovascular Medicine, Jichi Medical University
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Takeshi Aiba
- Department of Clinical Laboratory Medicine and Genetics, National Cerebral and Cardiovascular Center
| | - Junya Ako
- Department of Cardiovascular Medicine, Kitasato University School of Medicine
| | - Yoshihiro Asano
- Department of Genomic Medicine, National Cerebral and Cardiovascular Center
| | | | - Masaharu Kataoka
- The Second Department of Internal Medicine, University of Occupational and Environmental Health
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine
| | - Toru Kubo
- Department of Cardiology and Geriatrics, Kochi Medical School, Kochi University
| | - Takayoshi Matsumura
- Division of Human Genetics, Center for Molecular Medicine, Jichi Medical University
| | - Tetsuo Minamino
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University
| | - Kenji Minatoya
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University
| | - Hiroyuki Morita
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Masakazu Nishigaki
- Department of Genetic Counseling, International University of Health and Welfare
| | - Seitaro Nomura
- Department of Frontier Cardiovascular Science, Graduate School of Medicine, The University of Tokyo
| | | | - Seiko Ohno
- Medical Genome Center, National Cerebral and Cardiovascular Center
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences
| | - Toshihiro Tanaka
- Department of Human Genetics and Disease Diversity, Tokyo Medical and Dental University
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
| | - Tetsuro Uchida
- Department of Surgery II (Division of Cardiovascular, Thoracic and Pediatric Surgery), Yamagata University Faculty of Medicine
| | | | - Yusuke Ebana
- Life Science and Bioethics Research Center, Tokyo Medical and Dental University Hospital
| | - Kanna Fujita
- Department of Cardiovascular Medicine, The University of Tokyo Hospital
- Department of Computational Diagnostic Radiology and Preventive Medicine, Graduate School of Medicine, The University of Tokyo
| | - Kazufumi Ida
- Division of Counseling for Medical Genetics, National Cerebral and Cardiovascular Center
| | - Shunsuke Inoue
- Department of Cardiovascular Medicine, The University of Tokyo Hospital
| | - Kaoru Ito
- Laboratory for Cardiovascular Genomics and Informatics, RIKEN Center for Integrative Medical Sciences
| | - Yuki Kuramoto
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | - Jun Maeda
- Department of Cardiology, Tokyo Metropolitan Children's Medical Center
| | - Keiji Matsunaga
- Department of Cardiorenal and Cerebrovascular Medicine, Faculty of Medicine, Kagawa University
| | - Reiko Neki
- Division of Counseling for Medical Genetics, Department of Obstetrics and Gynecology, National Cerebral and Cardiovascular Center
| | - Kenta Sugiura
- Department of Cardiology and Geriatrics, Kochi Medical School, Kochi University
| | - Hayato Tada
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kanazawa University
| | - Akihiro Tsuji
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | | | | | - Akinori Kimura
- Institutional Research Office, Tokyo Medical and Dental University
| | - Koichiro Kuwahara
- Department of Cardiovascular Medicine, Shinshu University School of Medicine
| | - Koji Maemura
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine
| | | | - Katsushi Tokunaga
- Genome Medical Science Project, National Center for Global Health and Medicine
| |
Collapse
|
2
|
Yang L, Wang K, Yang J, Hu FX. Effects of Smoking on Major Adverse Cardiovascular Events in Patients With Coronary Artery Spasm: A Systematic Review and Meta-Analysis. Heart Lung Circ 2024; 33:1259-1271. [PMID: 38816281 DOI: 10.1016/j.hlc.2024.02.015] [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: 10/28/2023] [Revised: 01/31/2024] [Accepted: 02/12/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Smoking is an established independent risk factor for coronary artery spasm (CAS), but its effects on major adverse cardiovascular events (MACE) in patients with CAS have not been systematically assessed. METHODS This systematic review and meta-analysis of studies published from January 2000 to July 2023 was conducted to examine the relationship between smoking and MACE in patients with CAS. Data on MACE were obtained from both smoking and non-smoking CAS patient groups. The effects of smoking on MACE in patients with CAS were assessed through meta-analysis, utilising Stata 17.0 software for all statistical analyses. RESULTS Nine studies, encompassing 9,376 patients, from Japan (5 studies), Korea (4 studies) and Spain (1 study) were included in the final analysis. Meta-analysis revealed that smoking significantly impacted MACE in patients with CAS (RR 1.965; 95% CI 1.348-2.865), a finding further validated by sensitivity analyses. Subgroup analyses identified a stronger correlation between smoking and increased MACE endpoints in Japanese patients and in those with >3 years of follow-up. CONCLUSIONS This meta-analysis strongly indicates that smoking escalates the risk of MACE in patients with CAS, with a more pronounced association observed in Japanese patients and those with extended follow-up periods.
Collapse
Affiliation(s)
- Lei Yang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Kun Wang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jie Yang
- Department of Cardiovascular, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
| | - Fang-Xiao Hu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| |
Collapse
|
3
|
Fondjo LA, Awuah EO, Sakyi SA, Senu E, Detoh E. Association between endothelial nitric oxide synthase (eNOS) gene variants and nitric oxide production in preeclampsia: a case-control study in Ghana. Sci Rep 2023; 13:14740. [PMID: 37679510 PMCID: PMC10485031 DOI: 10.1038/s41598-023-41920-w] [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: 03/22/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023] Open
Abstract
Evidence suggests that a major cause of PE is endothelial dysfunction emanating from the reduced bioavailability of Nitric oxide (NO). Variants of endothelial nitric oxide synthase (eNOS) gene may lead to decreased NO levels. We explored the association between eNOS gene variants and nitric oxide levels among preeclamptic women in the Ghanaian population. This case-control study included 75 preeclamptic women and 75 healthy normotensive pregnant women attending antenatal care at the Nkawie-Toase Government Hospital, Ghana. A well-structured questionnaire was used to collect socio-demographic, obstetric and clinical data. Blood was obtained for DNA extraction; the gene variants were determined using PCR and RFLP. Preeclamptic women had significantly lower NO concentration compared to the normotensives (p < 0.0001) and was significantly different between VNTR variants (p < 0.0001). A significant difference in VNTR intron 4 distribution was also observed between the preeclamptic and normotensive women with 4c4c" (12.0%) and "4a4c" (1.3%) genotypes found predominantly in preeclamptic women (p < 0.0001). There was significantly higher distribution of "TC" genotype in preeclamptic women (44.0%) compared to normotensives (22.7%) (p = 0.019). However, possessing "4a4b" (cOR: 0.17, 95% CI 0.04-0.64) and "4b4b" (cOR: 0.09, 95% CI 0.02-0.38) significantly decreased the likelihood of experiencing preeclampsia by 83% and 91% respectively. Nitric oxide is reduced in preeclamptic women. NO levels in preeclampsia are altered by VNTR intron 4 variants but not T786C variants. Possessing VNTR intron 4 "4b" allele decreases the risk of PE while the "4c" allele increases the risk of PE. There is the need for eNOS variant screening and nitric oxide estimation among pregnant women for early prediction of women at risk of preeclampsia.
Collapse
Affiliation(s)
- Linda Ahenkorah Fondjo
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Enoch Ofori Awuah
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Samuel Asamoah Sakyi
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Ebenezer Senu
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eric Detoh
- Nkawie-Toase Government Hospital, Toase, Ghana
| |
Collapse
|
4
|
Zhao TJ, Luo D, Jiang X, Tang F, Jiang H. Effect of Statins on Major Adverse Cardiovascular Events in Patients with Coronary Artery Spasm: A Meta-Analysis of the Asia Region. Cardiovasc Ther 2023; 2023:8807278. [PMID: 37151221 PMCID: PMC10159740 DOI: 10.1155/2023/8807278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023] Open
Abstract
Background Whether statins can reduce major cardiovascular adverse events (MACE) in patients with coronary artery spasm (CAS) is controversial. And most of the relevant research to date has been conducted in Asia. Methods We systematically searched electronic databases for studies on the effect of statins on MACE in patients with CAS in Asia and published up to September 2022. We included data on MACE in a statin therapy patient group and a no-statin therapy control group. We then evaluated the effect of statin therapy on MACE in patients with CAS in Asia by meta-analysis and trial sequential analysis (TSA). All statistical analyses were performed using Stata 16.0 software and TSA software. Results A total of 10 studies (n = 9333 patients) were included in the final analysis. Meta-analysis showed that the use of statins had a significant effect on MACE in CAS patients (with RR, 0.70; 95% CI, 0.49-0.99), and the sensitivity analysis further confirmed this finding. Subgroup analysis suggested that the correlation between statin therapy and reduced MACE endpoint was stronger in Japanese patients and patients followed up for more than 4 years. But our TSA results indicated that the available samples were insufficient and further research is needed. Conclusions Our meta-analysis suggests that statin therapy can reduce MACE in patients with CAS in Asia, and the correlation between the two was stronger in Japanese patients and patients followed up for more than 4 years.
Collapse
Affiliation(s)
- Tian-Jun Zhao
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu 610031, China
| | - Duan Luo
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu 610031, China
| | - Xi Jiang
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu 610031, China
| | - Feng Tang
- Department of Gastroenterology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu 610031, China
| | - Hui Jiang
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu 610031, China
| |
Collapse
|
5
|
Papadopoulos KI, Papadopoulou A, Aw TC. A protective erythropoietin evolutionary landscape, NLRP3 inflammasome regulation, and multisystem inflammatory syndrome in children. Hum Cell 2023; 36:26-40. [PMID: 36310304 PMCID: PMC9618415 DOI: 10.1007/s13577-022-00819-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/24/2022] [Indexed: 11/04/2022]
Abstract
The low incidence of pediatric severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection and the associated multisystem inflammatory syndrome (MIS-C) lack a unifying pathophysiological explanation, impeding effective prevention and therapy. Activation of the NACHT, LRR, and PYD domains-containing protein (NLRP) 3 inflammasome in SARS-CoV-2 with perturbed regulation in MIS-C, has been reported. We posit that, early age physiological states and genetic determinants, such as certain polymorphisms of renin-angiotensin aldosterone system (RAAS) molecules, promote a controlled RAAS hyperactive state, and form an evolutionary landscape involving an age-dependent erythropoietin (EPO) elevation, mediating ancestral innate immune defenses that, through appropriate NLRP3 regulation, mitigate tissue injury and pathogen invasion. SARS-CoV-2-induced downregulation of angiotensin-converting enzyme (ACE)2 expression in endothelial cells (EC), impairment of endothelial nitric oxide (NO) synthase (eNOS) activity and downstream NO bioavailability, may promote a hyperactive RAAS with elevated angiotensin II and aldosterone that, can trigger, and accelerate NLRP3 inflammasome activation, while EPO-eNOS/NO abrogate it. Young age and a protective EPO evolutionary landscape may successfully inhibit SARS-CoV-2 and contain NLRP3 inflammasome activation. By contrast, increasing age and falling EPO levels, in genetically susceptible children with adverse genetic variants and co-morbidities, may lead to unopposed RAAS hyperactivity, NLRP3 inflammasome dysregulation, severe endotheliitis with pyroptotic cytokine storm, and development of autoantibodies, as already described in MIS-C. Our haplotype estimates, predicted from allele frequencies in population databases, are in concordance with MIS-C incidence reports in Europeans but indicate lower risks for Asians and African Americans. Targeted Mendelian approaches dissecting the influence of relevant genetic variants are needed.
Collapse
Affiliation(s)
- Konstantinos I Papadopoulos
- Department of Research and Development, THAI StemLife Co., Ltd., 566/3 THAI StemLife Bldg., Soi Ramkhamhaeng 39 (Thepleela 1), Prachaouthit Rd., Wangthonglang, 10310, Bangkok, Thailand.
| | - Alexandra Papadopoulou
- Occupational and Environmental Health Services, Feelgood Lund, Ideon Science Park, Scheelevägen 17, 223 63, Lund, Sweden
| | - Tar-Choon Aw
- Department of Laboratory Medicine, Changi General Hospital, Singapore, 529889, Singapore
- Department of Medicine, National University of Singapore, Singapore, 119228, Singapore
| |
Collapse
|
6
|
Genetic modulation of anemia severity, hemolysis level, and hospitalization rate in Angolan children with Sickle Cell Anemia. Mol Biol Rep 2022; 49:10347-10356. [PMID: 36097125 DOI: 10.1007/s11033-022-07831-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Sickle Cell Anemia (SCA) is a genetic disease caused by the c.20 A > T mutation in HBB gene, generally characterized by sickle erythrocytes, chronic hemolytic anemia, and vaso-occlusive events. This study aimed to investigate genetic modulators of anemia severity, chronic hemolytic rate, and clinical manifestations in pediatric SCA patients from Angola, where the disease is a severe public health problem. METHODS AND RESULTS The study was conducted on 200 SCA children living in Luanda or Caxito province. Their clinical phenotype was collected from patients' hospital records. Hematological and biochemical phenotypes were characterized in steady state condition. Twelve polymorphic regions in VCAM1, CD36 and NOS3 genes were genotyped using PCR, RFLP, and Sanger sequencing. CD36 gene promoter variants showed a significant impact on anemia severity. Particularly, the rs1413661_C allele was associated with lower hemoglobin levels, and increased number of hospitalizations and transfusions. This is the first report associating this SNP with SCA phenotypic heterogeneity. Moreover, the rs1041163_C allele in VCAM1 was associated with lower LDH levels; inversely the rs2070744_C allele in NOS3 was related with higher LDH levels and number of hospitalizations, being a risk factor for increased hemolytic rate. CONCLUSION This study highlights, for the first time in the Angolan population, the importance of the genetic modifiers of vascular cell adhesion and nitric oxide metabolism in SCA pediatric phenotypic variability.
Collapse
|
7
|
Lopes MMDC, Rojas HA, Polizzi LF, Magalhães KCS, Sandrim VC, Dellaretti M, Rubatino FVM, Simões RT. Analysis of the associations of the T-786C and Glu298Asp polymorphisms of the eNOS gene as risk factors in the rupture of intracranial aneurysms. Meta Gene 2022. [DOI: 10.1016/j.mgene.2021.101003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
8
|
Xu L, Polya DA. Exploratory study of the association in the United Kingdom between hypertension and inorganic arsenic (iAs) intake from rice and rice products. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:2505-2538. [PMID: 32347515 PMCID: PMC8275557 DOI: 10.1007/s10653-020-00573-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Hypertension risks arising from chronic exposure to inorganic arsenic (iAs) are well documented. Consumption of rice is a major iAs exposure route for over 3 billion people; however, there is a lack of epidemiological evidence demonstrating an association of hypertension risks with iAs intake from rice, especially in areas where there is little exposure from drinking water but a growing demand for rice intake. To address this, we conducted an individual-level cross-sectional analysis to quantify the extent to which daily iAs intake from rice and rice products (E-iAsing,rice) modifies the association between hypertension risks and previously well-established risk factors. The analysis was based on secondary dietary, socio-demographic and health status data of 598 participants recorded in the UK National Diet and Nutrition Survey 2014-2016. E-iAsing,rice and five blood pressure endpoints were derived with potential associations explored through generalized linear models. According to the results, a negative but not significant relationship was found between hypertension risks and E-iAsing,rice after adjusting for major risk factors, notably age, gender, diabetes and obesity, with relatively higher risks being observed for male, middle-aged, overweight, alcohol consumer or Asian or Asian British, Black or Black British and mixed ethnic groups. Though inconclusive and mainly limited by potential incomplete adjustment for major confounders and intrinsic disadvantages of a cross-sectional design, this study was the first quantifying the individual level dose-response relationship between E-iAsing,rice and hypertension risks and is consistent with previous studies on the limited associations of hypertension with low-level arsenic exposure from drinking water. Larger scale cohort studies are indicated to quantify the association but in any event it is likely to be weak.
Collapse
Affiliation(s)
- Lingqian Xu
- Department of Earth and Environmental Sciences and Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester, M13 9PL, UK
| | - David A Polya
- Department of Earth and Environmental Sciences and Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester, M13 9PL, UK.
| |
Collapse
|
9
|
Antioxidants-Related Superoxide Dismutase ( SOD), Catalase ( CAT), Glutathione Peroxidase ( GPX), Glutathione-S-Transferase ( GST), and Nitric Oxide Synthase ( NOS) Gene Variants Analysis in an Obese Population: A Preliminary Case-Control Study. Antioxidants (Basel) 2021; 10:antiox10040595. [PMID: 33924357 PMCID: PMC8070436 DOI: 10.3390/antiox10040595] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 12/22/2022] Open
Abstract
Oxidative stress and antioxidants play an important role in obesity etiopathology. Genetic variants, including single nucleotide polymorphisms (SNPs) of the antioxidant-related genes, may impact disease risk in several populations. This preliminary study aimed to explore the association of 12 SNPs related to superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione-S-transferase (GST), and nitric oxide synthase (NOS) genes with obesity susceptibility in a Saudi population. A total of 384 unrelated participants, including 154 (40.1%) obese individuals, were enrolled. TaqMan OpenArray Genotyping assays were used. Six SNPs were significantly more prevalent in obese cohorts: (1) GSTM1 rs1056806*C/T; (2) SOD1 rs2234694*A; (3) SOD2 rs4880*G; (4) SOD3 rs2536512*A; (5) GPX1 rs1800668*A; (6) NOS3 rs1799983*G. Four SNPs were associated with higher obesity risk under heterozygote and dominant models for GSTM1 rs1056806 (C/T), homozygote model for SOD2 rs4880 (A/G), and homozygote and recessive models for GPX1 rs1800668 (A/G). In contrast, SOD3 rs2536512 (A/G) were less likely to be obese under heterozygote and dominant models. The CGAG, CAAA, TGGG, and CGAG combined genotypes showed a higher risk of obesity. In conclusion, the present results suggest that oxidative-stress-related genetic determinants could significantly associate with obesity risk in the study population.
Collapse
|
10
|
Jalel A, Midani F, Fredj SH, Messaoud T, Hentati F, Soualmia H. Association of BglII Polymorphism in ITGA2 and (894G/T and -786T/C) Polymorphisms in eNOS Gene With Stroke Susceptibility in Tunisian Patients α2 Gene Polymorphism in α2β1 Integrin and eNOS Gene Variants and Stroke. Biol Res Nurs 2020; 23:408-417. [PMID: 33297767 DOI: 10.1177/1099800420977685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND This study investigated the association of BglII polymorphism in α2β1 integrin gene (ITGA2) and eNOS (894G/T and -786T/C) polymorphisms with ischemic stroke (IS) in Tunisian patients. METHODS The study comprised 210 patients with IS and 208 controls. The genotypes of the BglII polymorphism in ITGA2 and eNOS (894G/T and -786T/C) polymorphisms were determined using the PCR-RFLP. The χ2 test was used and the genotype data comparison included heterozygous groups. Haplotype estimation and multiple logistic regression analysis were performed to analyze the significance of polymorphisms. RESULTS The genotype distribution of the BglII polymorphism was significantly different between cases and controls (p < 0.004). This polymorphism was associated with the risk of IS (OR = 3.38, p < 0.001) for the BglII(+/+) genotype. Likewise, the genotype distributions of eNOS (894G/T and -786T/C) polymorphisms were significantly different between the two groups (p < 0.005 and p < 0.01, respectively). The 894G/T polymorphism increased the risk of IS for the TT genotype (OR = 2.23, p < 0.008) and the GT genotype (OR = 1.74, p < 0.009). In addition, the -786T/C variant in the eNOS gene was a risk factor for IS for CC homozygous (OR = 2.52, p < 0.005). T-C Haplotype (OR = 3.06) from combination of the eNOS (894G/T and -786T/C) and T-C-BglII(+) haplotype (OR = 2.76) from combination of eNOS and ITGA2 polymorphisms represented high risks for IS. CONCLUSIONS This study suggests that the BglII variant in ITGA2 is associated with IS susceptibility. Furthermore, the 894G/T and -786T/C polymorphisms in the eNOS gene may be considered as genetic risk factors for IS in the Tunisian population.
Collapse
Affiliation(s)
- Akrem Jalel
- University of Tunis El Manar, High Institute of Medical Technologies of Tunis, Tunisia
| | - Fatma Midani
- University of Tunis El Manar, High Institute of Medical Technologies of Tunis, Tunisia.,University of Carthage, Faculty of Sciences of Bizerte, Tunis, Tunisia
| | - Sondess Hadj Fredj
- University of Tunis El Manar, Research Laboratory "LR99ES11," Biochemistry Laboratory, Children' Hospital, Tunis, Tunisia
| | - Taieb Messaoud
- University of Tunis El Manar, Research Laboratory "LR99ES11," Biochemistry Laboratory, Children' Hospital, Tunis, Tunisia
| | - Fayçal Hentati
- University of Tunis El Manar, Faculty of Medicine, Neuroscience Department, Tunis, Tunisia.,37964University of Tunis El Manar, Neurology Department, Mongi Ben Hmida National Institute of Neurology, Tunis, Tunisia
| | - Hayet Soualmia
- University of Tunis El Manar, High Institute of Medical Technologies of Tunis, Tunisia
| |
Collapse
|
11
|
Guan SP, Seet RCS, Kennedy BK. Does eNOS derived nitric oxide protect the young from severe COVID-19 complications? Ageing Res Rev 2020; 64:101201. [PMID: 33157320 PMCID: PMC7609225 DOI: 10.1016/j.arr.2020.101201] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023]
Abstract
Aging is the largest risk factors for severity and mortality in adult COVID-19. Severe cases of COVID-19 are related to vascular damage with evidence of direct viral infection in the endothelial cells. Increase risk of COVID-19 death are also highly related to disease with lower vascular Nitric Oxide (NO) level. Vascular viral defence by endothelial nitric oxide synthase (eNOS) derive NO may be the protecting factor for the young. eNOS polymorphism could potentially explain the disparity of COVID-19 mortality between Asian and non-Asian countries.
The COVID-19 pandemic poses an imminent threat to humanity, especially to the elderly. The molecular mechanisms underpinning the age-dependent disparity for disease progression is not clear. COVID-19 is both a respiratory and a vascular disease in severe patients. The damage endothelial system provides a good explanation for the various complications seen in COVID-19 patients. These observations lead us to suspect that endothelial cells are a barrier that must be breached before progression to severe disease. Endothelial intracellular defences are largely dependent of the activation of the interferon (IFN) system. Nevertheless, low type I and III IFNs are generally observed in COVID-19 patients suggesting that other intracellular viral defence systems are also activated to protect the young. Intriguingly, Nitric oxide (NO), which is the main intracellular antiviral defence, has been shown to inhibit a wide array of viruses, including SARS-CoV-1. Additionally, the increased risk of death with diseases that have underlying endothelial dysfunction suggest that endothelial NOS-derived nitric oxide could be the main defence mechanism. NO decreases dramatically in the elderly, the hyperglycaemic and the patients with low levels of vitamin D. However, eNOS derived NO occurs at low levels, unless it is during inflammation and co-stimulated by bradykinin. Regrettably, the bradykinin-induced vasodilation also progressively declines with age, thereby decreasing anti-viral NO production as well. Intriguingly, the inverse correlation between the percentage of WT eNOS haplotype and death per 100K population could potentially explain the disparity of COVID-19 mortality between Asian and non-Asian countries. These changes with age, low bradykinin and NO, may be the fundamental reasons that intracellular innate immunity declines with age leading to more severe COVID-19 complications.
Collapse
|
12
|
Xu L, Polya DA, Li Q, Mondal D. Association of low-level inorganic arsenic exposure from rice with age-standardized mortality risk of cardiovascular disease (CVD) in England and Wales. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140534. [PMID: 32659549 DOI: 10.1016/j.scitotenv.2020.140534] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/26/2020] [Accepted: 06/24/2020] [Indexed: 05/10/2023]
Abstract
Adverse health outcomes, including death from cardiovascular disease (CVD), arising from chronic exposure to inorganic arsenic (iAs) are well documented. Consumption of rice is a major iAs exposure route for over 3 billion people, however, there is still a lack of epidemiological evidence demonstrating the association between iAs exposure from rice intake and CVD risks. We explored this potential association through an ecological study using data at local authority level across England and Wales. Local authority level daily per capita iAs exposure from rice (E-iAsing,rice) was estimated using ethnicity as a proxy for class of rice consumption. A series of linear and non-linear models were applied to estimate the association between E-iAsing,rice and CVD age-standardized mortality rate (ASMR), using Akaike's Information Criterion as the principle model selection criterion. When adjusted for significant confounders, notably smoking prevalence, education level, employment rate, overweight percentage, PM2.5, female percentage and medical and care establishments, the preferred non-linear model indicated that CVD risks increased with iAs exposure from rice at exposures above 0.3 μg/person/day. Also, the best-fitted linear model indicated that CVD ASMR in the highest quartile of iAs exposure (0.375-2.71 μg/person/day) was 1.06 (1.02, 1.11; p-trend <0.001) times higher than that in the lowest quartile (<0.265 μg/person/day). Notwithstanding the well-known limitations of ecological studies, this study further suggests exposure to iAs, including from rice intake, as a potentially important confounder for studies of the factors controlling CVD risks.
Collapse
Affiliation(s)
- Lingqian Xu
- Department of Earth and Environmental Sciences, Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester M13 9PL, UK
| | - David A Polya
- Department of Earth and Environmental Sciences, Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester M13 9PL, UK.
| | - Qian Li
- Department of Earth and Environmental Sciences, Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester M13 9PL, UK
| | - Debapriya Mondal
- School of Science, Engineering & Environment, University of Salford, Salford M5 4WT, UK
| |
Collapse
|
13
|
de Aragão Santos TW, Dos Santos Catena A, da Silva Mattos S, de Lima Filho JL, Gondim Martins DB. The incidence of NOS3 gene polymorphisms on newborns with large and small birth weight. Mol Biol Rep 2020; 47:8545-8552. [PMID: 33063148 DOI: 10.1007/s11033-020-05897-3] [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: 08/11/2020] [Accepted: 10/03/2020] [Indexed: 11/26/2022]
Abstract
The NOS3 gene polymorphisms T-786C, G894T and VNTR 4b/a are associated with a predisposition to the development of Metabolic Syndrome (MetS). The NOS3 gene contributes to a normal pregnancy and fetal development. According to their birthweight, newborns can be classified as: small (SGA), adequate (AGA) or large (LGA) for gestational age. The SGA and LGA present a higher risk of developing disorders related to MetS, both during childhood and adulthood. Therefore, the aim of this work is to relate the incidence of G894T, T-786C and VNTR 4b/a on SGA and LGA newborns and their mothers. 204 blood samples were collected from mothers (102) and the umbilical cords of 102 newborns (SGA = 12; AGA = 47; LGA = 43). The genotyping was performed through PCR-RFLP to evaluate presence of the G894T, T-786C and VNTR 4b/a polymorphisms. A significant difference was found between the groups of newborns in the genotypic frequency of T-786C, but without Hardy-Weinberg equilibrium. The VNTR 4b/a and the G894T polymorphisms showed no significance between the groups. The haplotype analysis showed that the SGA newborns presented the higher frequency of 4aGT (9.8%) and of the 4aTT combination (25.4%), while LGA newborns presented the higher frequency of the 4bTT haplotype (23%). Only the SGA newborns and their mothers presented the 4aTC haplotype. In conclusion, the NOS3 polymorphisms do not appear to be a factor to inadequate birth weight. However, the G894T and VNTR 4b/a polymorphisms, and the haplotype 4aTC, seem to influence the occurrence of SGA.
Collapse
Affiliation(s)
- Thaysa Walléria de Aragão Santos
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil.
| | - Andriu Dos Santos Catena
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | | | - José Luiz de Lima Filho
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Danyelly Bruneska Gondim Martins
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
- Biochemistry Department, Federal University of Pernambuco (UFPE), Recife, Brazil
| |
Collapse
|
14
|
Beghi S, Cavaliere F, Buschini A. Gene polymorphisms in calcium-calmodulin pathway: Focus on cardiovascular disease. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2020; 786:108325. [PMID: 33339582 DOI: 10.1016/j.mrrev.2020.108325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 12/30/2022]
Abstract
Cardiovascular disease is the leading cause of death in industrialized countries and affects an increasing number of people. Several risk factors play an important role in the etiology of this disease, such as an unhealthy lifestyle. It is increasingly clear that genetic factors influencing the molecular basis of excitation-contraction mechanisms in the heart could contribute to modify the individual's risk. Thanks to the progress that has been made in understanding calcium signaling in the heart, it is assumed that calmodulin can play a crucial role in the excitation-contraction coupling. In fact, calmodulin (CaM) binds calcium and consequently regulates calcium channels. Several works show how some polymorphic variants can be considered predisposing factors to complex pathologies. Therefore, we hypothesize that the identification of polymorphic variants of proteins involved in the CaM pathway could be important for understanding how genetic traits can influence predisposition to myocardial infarction. This review considers each pathway of the three different isoforms of calmodulin (CaM1; CaM2; CaM3) and focuses on some common proteins involved in the three pathways, with the aim of analyzing the polymorphisms studied in the literature and understanding if they are associated with cardiovascular disease.
Collapse
Affiliation(s)
- Sofia Beghi
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze 11A, 43124, Parma, Italy
| | - Francesca Cavaliere
- University of Parma, Department of Food and Drug, Parco Area Delle Scienze 17A, 43124, Parma, Italy
| | - Annamaria Buschini
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze 11A, 43124, Parma, Italy.
| |
Collapse
|
15
|
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.
Collapse
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.
| |
Collapse
|
16
|
Silva M, Vargas S, Coelho A, Ferreira E, Mendonça J, Vieira L, Maia R, Dias A, Ferreira T, Morais A, Soares IM, Lavinha J, Silva R, Kjöllerström P, Faustino P. Biomarkers and genetic modulators of cerebral vasculopathy in sub-Saharan ancestry children with sickle cell anemia. Blood Cells Mol Dis 2020; 83:102436. [PMID: 32434137 DOI: 10.1016/j.bcmd.2020.102436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/05/2020] [Accepted: 04/05/2020] [Indexed: 01/18/2023]
Abstract
We investigated biomarkers and genetic modulators of the cerebral vasculopathy (CV) subphenotype in pediatric sickle cell anemia (SCA) patients of sub-Saharan African ancestry. We found that one VCAM1 promoter haplotype (haplotype 7) and VCAM1 single nucleotide variant rs1409419_T were associated with stroke events, stroke risk, as measured by time-averaged mean of maximum velocity in the middle cerebral artery, and with high serum levels of the hemolysis biomarker lactate dehydrogenase. Furthermore, VCAM-1 ligand coding gene ITGA4 variants rs113276800_A and rs3770138_T showed a positive association with stroke events. An additional positive relationship between a genetic variant and stroke risk was observed for ENPP1 rs1044498_A. Conversely, NOS3 variants were negatively associated with silent cerebral infarct events (VNTR 4b_allele and haplotype V) and CV globally (haplotype VII). The -alpha3.7kb-thal deletion did not show association with CV. However, it was associated with higher red blood cell and neutrophil counts, and lower mean corpuscular volume, mean corpuscular hemoglobin and red cell distribution width. Our results underline the importance of genetic modulators of the CV sub-phenotype and their potential as SCA therapeutic targets. We also propose that a biomarker panel comprising biochemical, hematological, imaging and genetic data would be instrumental for CV prediction, and prevention.
Collapse
Affiliation(s)
- Marisa Silva
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - Sofia Vargas
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - Andreia Coelho
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - Emanuel Ferreira
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - Joana Mendonça
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal
| | - Luís Vieira
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal; ToxOmics, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Raquel Maia
- Unidade de Hematologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central (CHULC), Lisbon, Portugal
| | - Alexandra Dias
- Núcleo de Hematologia, Departamento de Pediatria, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal
| | - Teresa Ferreira
- Núcleo de Hematologia, Departamento de Pediatria, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal
| | - Anabela Morais
- Departamento de Pediatria, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal
| | | | - João Lavinha
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal; BioISI, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Rita Silva
- Unidade de Neuropediatria, Hospital de Dona Estefânia, CHULC, Lisbon, Portugal
| | - Paula Kjöllerström
- Unidade de Hematologia, Hospital de Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central (CHULC), Lisbon, Portugal
| | - Paula Faustino
- Departamento de Genética Humana, Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal; Instituto de Saúde Ambiental (ISAMB), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
| |
Collapse
|
17
|
Chenou F, Albuquerque DM, Leonardo DP, Domingos IF, Bezerra MAC, Araújo AS, Blotta MHSL, Costa FF, Sonati MF, Paula EV, Santos MNN. Endothelial Nitric Oxide Synthase (eNOS) Gene Polymorphisms and Markers of Hemolysis, Inflammation and Endothelial Dysfunction in Brazilian Sickle Cell Anemia Patients. Biochem Genet 2020; 58:580-594. [PMID: 32277314 DOI: 10.1007/s10528-020-09959-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/13/2020] [Indexed: 11/30/2022]
Abstract
The impaired bioavailability of endogenous nitric oxide (NO) in sickle cell anemia (SCA) may be influenced by polymorphisms in the endothelial nitric oxide synthase gene (eNOS). We compared allelic/genotypic frequencies of the eNOS polymorphisms T-786C, VNTR4a/b and G894T between 89 adult SCA patients and 100 healthy controls, and investigated the relationship between these SNPs and markers of hemolysis [lactate dehydrogenase (LDH), indirect bilirubin (IB) and reticulocyte counts], inflammation [interleukins IL-1β, IL-6, IL-8, Tumor Necrosis Factor (TNF-α) and C-reactive protein (CRP)] and endothelial dysfunction (ED) [soluble vascular cell adhesion molecule-1 (sVCAM-1), soluble intercellular adhesion molecule-1 (sICAM-1), soluble L-selectin (sL-selectin), von Willebrand Factor (vWF) antigen and D-dimers] in the patients. The frequencies of the mutant -786C allele and -786C/C genotype were significantly higher in patients (p = 0.02 and p = 0.04, respectively) but not significantly correlated with the markers. For VNTR4a/b and G894T, the allelic/genotypic frequencies did not statistically differ between patient and control groups. Patients carrying the 4a allele and those with the 894G/G genotype showed a significant decrease in IB (p = 0.02 and p = 0.04, respectively), and only patients with the 4a allele exhibited reduced IL-1β (p = 0.01). The correlation profiles between markers of inflammation and ED significantly differed between patients carrying the mutant alleles and those with wild-type genotypes. This appears to be the first report on the relationship between eNOS gene polymorphisms and markers of hemolysis, inflammation and ED in Brazilian SCA patients. Our results indicate that the SNPs analyzed may influence the phenotypic variability of these patients.
Collapse
Affiliation(s)
- F Chenou
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - D M Albuquerque
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - D P Leonardo
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - I F Domingos
- Department of Genetics, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - M A C Bezerra
- Department of Genetics, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - A S Araújo
- Hematology and Hemotherapy Foundation of Pernambuco (HEMOPE), Recife, Pernambuco, Brazil
| | - M H S L Blotta
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - F F Costa
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - M F Sonati
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil
| | - E V Paula
- Hematology and Hemotherapy Center, State University of Campinas-UNICAMP, Campinas, São Paulo, Brazil
| | - M N N Santos
- Department of Clinical Pathology - School of Medical Sciences, State University of Campinas (UNICAMP), Rua Vital Brasil 50, Campinas, SP, 13083-888, Brazil.
| |
Collapse
|
18
|
Pawlik A, Błaszczyk H, Rać M, Maciejewska-Skrendo A, Safranow K, Dziedziejko V. NOS3 Gene rs1799983 and rs2070744 Polymorphisms in Patients with Unstable Angina. J Vasc Res 2020; 57:136-142. [PMID: 32224624 DOI: 10.1159/000506160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 01/26/2020] [Indexed: 11/19/2022] Open
Abstract
Acute coronary syndrome occurs when the heart muscle does not receive adequate oxygen and nutrients in a timely manner. Acute coronary syndromes are primarily due to atherosclerosis of the coronary arteries, i.e., coronary heart disease. Nitric oxide (NO) is synthesised from L-arginine in endothelial cells by the constitutive calcium-calmodulin-dependent enzyme, nitric oxide synthase (NOS), which mediates endothelium-dependent vasodilatation. Endothelial nitric oxide synthase (eNOS) is predominantly expressed in endothelial cells. Three NOS isoforms have been detected in different tissue: (1) neuronal NOS (nNOS) (NOS1), (2) eNOS (NOS2), and (3) inducible NOS (iNOS) (NOS3). These isoforms are encoded by three different genes. NOS3 is located on chromosome 7q35-36 and contains 26 exons. Previous studies have suggested that NOS3 polymorphisms may be associated with acute coronary syndromes. Therefore, the aim of the study was to examine the associations between NOS3 rs1799983 (894G/T)andrs2070744 (-786T/C) polymorphisms and unstable angina. This study included 246 patients with unstable angina, as confirmed by coronary angiography. We also included 189 healthy controls who were also assessed by this technique. There were no significant differences in genotype distributions of NOS3 rs1799983and rs2070744 polymorphisms in patients with unstable angina and healthy controls in both univariate and multivariate analyses. In patients with the NOS3 rs1799983 TT genotype, we observed a higher BMI (TT vs. GT + GG, p = 0.068), and in patients with the NOS3 rs2070744 TT genotype, we observed a higher waist circumference (TT vs. TC + CC, p = 0.023; TT vs. CC, p = 0.0053). These data suggest a lack of association between the NOS3 rs1799983andrs2070744 polymorphisms and unstable angina in our patient population. However, these polymorphisms may be associated with some obesity parameters, rs1799983 in females and rs2070744 in males.
Collapse
Affiliation(s)
- Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland,
| | | | - Monika Rać
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland
| | | | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland
| | - Violetta Dziedziejko
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland
| |
Collapse
|
19
|
Omar SS, Mahfouz W, Dawood W, Abo El-Wafa RAH, Ghazala RA, Zahran ARM. Relation of nitric oxide synthase gene (NOS3) polymorphisms to varicocele risk and post-varicocelectomy seminal oxidative stress reduction. Andrologia 2020; 52:e13525. [PMID: 32022285 DOI: 10.1111/and.13525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/11/2019] [Accepted: 01/05/2020] [Indexed: 01/27/2023] Open
Abstract
The pathophysiology of varicocele remains to be unknown. Several genetic factors have been implicated in varicocele etiopathogenesis. We studied the relationship between NOS3 c.894G>T, c.786T>C and 4b/a polymorphisms to varicocele risk and their prognostic value as regards improvement of the post-operative seminal parameters &/or seminal malonaldehyde levels. The three NOS3 polymorphisms were evaluated in 100 patients with varicocele and 100 healthy subjects by RT-PCR. Seminal plasma MDA level was measured pre-operatively and 3 months after varicocelectomy by the thiobarbituric acid method. The GT, TT, TC and bb genotypes of NOS3 polymorphism were more commonly observed in varicocele patients (30%, 9%, 28% and 70% respectively) compared to normal controls (12%, 0%, 10% and 50% respectively). The mean percentage of post-varicocelectomy seminal MDA reduction was highest with the GT genotype (p < .001). Genotypes GT+TT, TC and bb were associated with varicocele occurrence in our patients. The T (c.894G>T), C (c.786T>C) and b (NOS3 intron 4 VNTR) alleles were significantly associated with varicocele occurrence in our cohort of patients. We also report a better response regarding the reduction of seminal MDA after varicocelectomy with the GT and ba genotypes.
Collapse
Affiliation(s)
- Salma Samir Omar
- Department of Dermatology, Venereology & Andrology, Alexandria University, Alexandria, Egypt
| | - Wally Mahfouz
- Department of Urology, Alexandria University, Alexandria, Egypt
| | - Waleed Dawood
- Department of Urology, Alexandria University, Alexandria, Egypt
| | | | | | | |
Collapse
|
20
|
Genetic and epigenetic polymorphisms of eNOS and CYP2D6 in mainland Chinese Tibetan, Mongolian, Uygur, and Han populations. THE PHARMACOGENOMICS JOURNAL 2019; 20:114-125. [PMID: 31616043 DOI: 10.1038/s41397-019-0104-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 09/09/2019] [Accepted: 10/02/2019] [Indexed: 12/19/2022]
Abstract
Cytochrome P450 2D6 (CYP2D6) and endothelial nitric oxide synthase (eNOS) are important in the cardiovascular disease susceptibility and drug response. The methylation of cytosine in the promoter of genes could influence expression. The interindividual differences of drug response could only be explained partly by the polymorphisms of drug disposition genes. This study was aimed to investigate the genetic and epigenetic polymorphisms of CYP2D6 and eNOS in Chinese Tibetan, Mongolian, Uygur, and Han volunteers. Blood samples were collected from 842 unrelated Chinese healthy subjects (323 Tibetan, 134 Mongolian, 162 Uygur, and 223 Han) for genotyping and part of the DNA samples were subjected to cytosine methylation analysis. Significant genetic and epigenetic interethnic polymorphisms of eNOS and CYP2D6 were found in the four Chinese groups. The 4b-G-T wild-type haplotype of eNOS was the most common in Chinese Tibetan (87.1%), Mongolian (79.9%), Uygur (76.4%), and Han (79.5%), respectively. eNOS T-786C creates a new CpG site and a significantly higher methylation level was found in -786CC than that in -786TC in Chinese Han (P = 0.0485) and total Chinese (P = 0.0104). CYP2D6 A-678 (rs28633410) makes the symmetrical CpG site changed to be an asymmetrical CpA site, and the methylation level of cytosine in the CpG context of G-678A was significantly higher than that in the CpA. The results of the present study could be useful for understanding the interindividual disparity of cardiovascular disease susceptibility and drug response among different Chinese ethnic groups and would provide more evidences for the precise medication of Chinese.
Collapse
|
21
|
Kraal AZ, Moll AC, Arvanitis NR, Ward KM, Dougherty RJ, Grove TB, Burghardt KJ, Ellingrod VL. Metabolic syndrome is negatively associated with cognition among endothelial nitric oxide synthase (eNOS)- 786C carriers in schizophrenia-spectrum disorders. J Psychiatr Res 2019; 117:142-147. [PMID: 31421598 PMCID: PMC6707862 DOI: 10.1016/j.jpsychires.2019.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 06/30/2019] [Accepted: 07/25/2019] [Indexed: 02/08/2023]
Abstract
Although metabolic syndrome and cognitive inefficiencies are well-described common complications of schizophrenia, their association remains inconsistent, potentially due to poorly understood mechanisms underlying their relationship. Variability in the endothelial nitric oxide synthase (eNOS) gene, specifically the T-786C variant, has been separately associated with cognition and metabolic syndrome, with worse outcomes for eNOS-786C carriers likely occurring via negative effects on blood vessel functioning. However, the interaction between eNOS and metabolic syndrome in cognition among adults with schizophrenia is unknown. This study aimed to test the main and interaction effects of the eNOS-786C allele in cognition using hierarchical regression analyses controlling for age, sex, education, race, and antipsychotic exposure. Metabolic syndrome, eNOS T-786C genotype, and cognitive performance were assessed in 226 community-dwelling participants with chronic schizophrenia-spectrum disorders. Results demonstrated a significant interaction between metabolic syndrome and the eNOS-786C allele. Specifically, among eNOS-786C carriers only, metabolic syndrome was independently associated with lower scores in processing speed and verbal fluency, and predicted 12.5% and 15.8% of variance in performance, respectively. These results suggest that the additive negative effects of eNOS-786C and metabolic syndrome on blood vessel functioning may be severe enough to negatively impact cognition. The finding that metabolic syndrome is associated with worse cognition only in the presence of the eNOS-786C allele may clarify extant inconsistencies in the literature. These findings provide preliminary evidence that may inform interventions to reduce cognitive morbidity among adults with schizophrenia.
Collapse
Affiliation(s)
- A. Zarina Kraal
- Department of Psychology, College of Literature, Science, and the Arts, University of Michigan,Department of Clinical Pharmacy, College of Pharmacy, University of Michigan
| | - Allison C. Moll
- Department of Psychology, College of Literature, Science, and the Arts, University of Michigan
| | - Nicole R. Arvanitis
- Department of Clinical Pharmacy, College of Pharmacy, University of Michigan
| | - Kristen M. Ward
- Department of Clinical Pharmacy, College of Pharmacy, University of Michigan
| | - Ryan J. Dougherty
- Department of Social Welfare, Luskin School of Public Affairs, University of California Los Angeles
| | - Tyler B. Grove
- Department of Psychiatry, School of Medicine, University of Michigan
| | - Kyle J. Burghardt
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University
| | - Vicki L. Ellingrod
- Department of Psychology, College of Literature, Science, and the Arts, University of Michigan,Department of Clinical Pharmacy, College of Pharmacy, University of Michigan,Department of Psychiatry, School of Medicine, University of Michigan
| |
Collapse
|
22
|
Brothers RM, Fadel PJ, Keller DM. Racial disparities in cardiovascular disease risk: mechanisms of vascular dysfunction. Am J Physiol Heart Circ Physiol 2019; 317:H777-H789. [PMID: 31397168 DOI: 10.1152/ajpheart.00126.2019] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) accounts for a third of all deaths in the United States making it the leading cause of morbidity and mortality. Although CVD affects individuals of all races/ethnicities, the prevalence of CVD is highest in non-Hispanic black (BL) individuals relative to other populations. The mechanism(s) responsible for elevated CVD risk in the BL population remains incompletely understood. However, impaired vascular vasodilator capacity and exaggerated vascular vasoconstrictor responsiveness are likely contributing factors, both of which are present even in young, otherwise healthy BL individuals. Within this review, we highlight some historical and recent data, collected from our laboratories, of impaired vascular function, in terms of reduced vasodilator capacity and heightened vasoconstrictor responsiveness, in the peripheral and cerebral circulations in BL individuals. We provide data that such impairments may be related to elevated oxidative stress and subsequent reduction in nitric oxide bioavailability. In addition, divergent mechanisms of impaired vasodilatory capacity between BL men and women are discussed. Finally, we propose several directions where future research is needed to fill in knowledge gaps, which will allow for better understanding of the mechanisms contributing to impaired vascular function in this population. Ultimately, this information will allow for better lifestyle and therapeutic approaches to be implemented in an effort to minimize the increased CVD burden in the BL population.
Collapse
Affiliation(s)
- R Matthew Brothers
- Department of Kinesiology, University of Texas at Arlington, Arlington, Texas
| | - Paul J Fadel
- Department of Kinesiology, University of Texas at Arlington, Arlington, Texas
| | - David M Keller
- Department of Kinesiology, University of Texas at Arlington, Arlington, Texas
| |
Collapse
|
23
|
Segura A, Ballester P, Ajo R, Inda MDM, Urbano A, Muriel J, Ochando I, Margarit C, Martinez E, Peiró AM. Endothelial nitric oxide synthase gene polymorphisms and erectile dysfunction in chronic pain. Gene 2019; 1:100005. [PMID: 32550542 PMCID: PMC7285905 DOI: 10.1016/j.gene.2019.100005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/29/2018] [Accepted: 12/17/2018] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To investigate whether endothelial nitric oxide synthase (eNOS) T786C, 4VNTR and G894 T gene polymorphisms could mediate in andrological treatment response in Spaniards. SUBJECT PATIENTS/METHODS The study participants were Spaniard males with erectile dysfunction (ED) and chronic pain (n = 105) recruited at the Pain Unit. eNOS polymorphisms were genotyped by quantitative polymerase chain reaction using Taqman specific probes. Statistical analyses were carried out using R-3.2.4 software. RESULTS A total of 69 patients required andrological treatment and 76% of them improved ED upon iPED5 (20%), testosterone (35%) or iPDE5/testosterone treatment (45%); being significantly better in T786C-CC patients. Multivariate regression analysis indicated that age, opioid daily dose and carriage of T786C-C allele influenced the risk and ED severity in Spaniard chronic pain patients. CONCLUSION T786C polymorphism at eNOS locus appeared to be a major contributor in the variable erectile function iPDE5/testosterone response in Spaniards.
Collapse
Key Words
- BMI, body mass index
- CNP, chronic non-cancer pain
- Chronic pain
- ED, erectile dysfunction
- EF, Erectile function
- Erectile dysfunction
- IIEF, International Index of Erectile Function
- NO, nitric oxide
- Pharmacogenetics
- T786C
- VAS, Visual analogue scale
- cGMP, 3′,5′-cyclic guanosine monophosphate
- eNOS gene
- eNOS, endothelial nitric oxide synthase
- iPDE5
- iPDE5, phosphodiesterase type 5 inhibitors
- mSLQQ-QOL, modified Sexual Life Quality Questionnaire
Collapse
Affiliation(s)
- Ana Segura
- Andrology Unit, University General Hospital of Alicante (HGUA), Alicante, Spain
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
| | - Pura Ballester
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
| | - Raquel Ajo
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
| | - María-del-Mar Inda
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
| | - Antonio Urbano
- Genetics Unit, Clínica Vistahermosa HLA-Hospital, Alicante, Spain
- Histology and Anatomy Department, Miguel Hernández University (UMH), Alicante, Spain
| | - Javier Muriel
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
- Occupational Observatory, University Miguel Hernández of Elche (UMH), Alicante, Spain
| | - Isabel Ochando
- Genetics Unit, Clínica Vistahermosa HLA-Hospital, Alicante, Spain
- Histology and Anatomy Department, Miguel Hernández University (UMH), Alicante, Spain
| | - César Margarit
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
- Pain Unit, HGUA, Alicante, Spain
| | | | - Ana M. Peiró
- Neuropharmacology on Pain Research Unit, Institute of Health and Biomedical Research of Alicante (ISABIAL-FISABIO), Alicante, Spain
- Clinical Pharmacology, HGUA, Alicante, Spain
| |
Collapse
|
24
|
Luizon MR, Pereira DA, Tanus-Santos JE. Pharmacogenetic relevance of endothelial nitric oxide synthase polymorphisms and gene interactions. Pharmacogenomics 2018; 19:1423-1435. [PMID: 30398085 DOI: 10.2217/pgs-2018-0098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Endothelial nitric oxide synthase (NOS3) is a key enzyme responsible for nitric oxide (NO) generation in the vascular endothelium. Endothelial dysfunction is characterized by reduced NO production, and is a hallmark of cardiovascular diseases. Drugs with cardiovascular action may activate NOS3 and result in NO release and vasodilation. Moreover, genetic variations affect NOS3 expression and activity, and may partially explain the variability in the responses to cardiovascular drugs. We reviewed NO signaling and genetic effects on NO formation, and the effects of NOS3 polymorphisms, haplotypes and gene-gene interactions within NO signaling pathways on the responses to cardiovascular drugs. We discuss the role of rare NOS3 variants and further gene-gene interactions analysis for the development of novel therapies for cardiovascular diseases.
Collapse
Affiliation(s)
- Marcelo R Luizon
- Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 31270-901, Brazil.,UFMG Graduate Program in Genetics, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Daniela A Pereira
- UFMG Graduate Program in Genetics, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo 14049-900, Brazil
| |
Collapse
|
25
|
Association of endothelial nitric oxide synthase (eNOS) gene polymorphisms and physical fitness levels with plasma nitrite concentrations and arterial blood pressure values in older adults. PLoS One 2018; 13:e0206254. [PMID: 30335864 PMCID: PMC6193729 DOI: 10.1371/journal.pone.0206254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/09/2018] [Indexed: 01/08/2023] Open
Abstract
Endothelial nitric oxide synthase (eNOS) gene polymorphisms are associated with reduced eNOS activity and nitric oxide (NO) production leading to an increase in blood pressure (BP). Regular exercise is the main strategy to minimize the deleterious effects of polymorphisms. However, due to the differences that physical exercise can be performed, some controversial results are found. Therefore it seems reasonable to evaluate the training status (TS). Thus, this study aimed to investigate the association of eNOS gene haplotypes and different levels of TS on nitrite concentrations (NO2-) and BP values in older adult. 424 elderly performed the following assessments: General Functional Fitness Index (GFFI) to estimate TS, systolic and diastolic blood pressure (SBP and DBP), blood collection for analysis of NO2- and g.-786T>C, intron 4b/a (VNTR) and 894G>T polymorphisms. Multivariate logistic regression showed that NO2- was influenced by GFFI and 4b/4a Intron 4. Regarding BP, GFFI influenced SBP and DBP, and just intron 4 was associated with variations in DBP. It can be observed that GFFI affected the NO2-, SBP and DBP independently of haplotypes. Therefore, maintenance of good level of TS can overcome the negative influence of genetics factors (intron 4) by increasing NO2- concentration and decreasing BP values.
Collapse
|
26
|
Antwi-Boasiako C, Dzudzor B, Kudzi W, Doku A, Dale CA, Sey F, Otu KH, Boatemaa GD, Ekem I, Ahenkorah J, Achel DG, Aboagye ET, Donkor ES. Association between eNOS Gene Polymorphism (T786C and VNTR) and Sickle Cell Disease Patients in Ghana. Diseases 2018; 6:E90. [PMID: 30274269 PMCID: PMC6313677 DOI: 10.3390/diseases6040090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 09/21/2018] [Accepted: 09/27/2018] [Indexed: 01/01/2023] Open
Abstract
Endothelial nitric oxide synthase (eNOS) variants have been found to be associated with several vascular disorders as well as the pathogenesis of sickle cell disease (SCD) complications such as vaso-occlusive crises (VOC). Studies on eNOS gene variants among SCD patients are rare in Ghana and several other African countries. The current study aimed to determine a possible association between variants of the eNOS gene (variable number of tandem repeats in intron 4 and T786C) in SCD complications among Ghanaian patients. This was a cross-sectional study involving 89 HbSS patients with complications and 46 HbSS patients without complications. Genomic DNA was extracted from leukocytes in the buffy coat and separated from collected whole blood samples of the study participants. PCR amplification, followed by restriction fragment length polymorphism (RFLP) was used to genotype T786C (rs2070744) variants. Variable number of tandem repeats (VNTR) in intron 4 was genotyped by PCR and direct electrophoresis. There was a significant difference in the genotype frequency of the T786C variant between HbSS patients with complications and those without complications (p = 0.0165). However, there was no significant difference in the VNTR intron 4 variant of the eNOS gene between patients with complications and those without complications (p > 0.05). The study shows an association between the eNOS gene variant (T786C) and complications in SCD.
Collapse
Affiliation(s)
- Charles Antwi-Boasiako
- Department of Physiology, School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - Bartholomew Dzudzor
- Department of Medical Biochemistry, School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - William Kudzi
- Centre for Tropical Clinical Pharmacology and Therapeutics School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - Alfred Doku
- Department of Internal Medicine, School of Medicine and Dentistry, University of Ghana, Accra +233, Ghana.
| | - Campbell Andrew Dale
- Center for Cancer and Blood Disorders Children's National Medical Center George Washington University School of Medicine and Health Sciences, Washington, DC 20052, USA.
| | - Fredericka Sey
- Center for Clinical Genetics, Korle-Bu Teaching Hospital, Accra +233, Ghana.
| | - Kate Hgar Otu
- Department of Nursing and Midwifery, Greenhills School of Health Sciences, Accra +233, Ghana.
| | - Gifty Dankwah Boatemaa
- Department of Physiology, School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - Ivy Ekem
- Department of Haematology, School of Medical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast +233, Ghana.
| | - John Ahenkorah
- Department of Anatomy, School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - Daniel Gyingiri Achel
- Applied Radiation Biology Center, Radiological and Medical Sciences Research, Ghana Atomic Energy Commission, Accra +233, Ghana.
| | - Elvis Twumasi Aboagye
- Centre for Tropical Clinical Pharmacology and Therapeutics School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| | - Eric S Donkor
- Department of Medical Microbiology, School of Biomedical and Allied Health Sciences, University of Ghana, Accra +233, Ghana.
| |
Collapse
|
27
|
Association between Polymorphisms of Antioxidant Gene (MnSOD, CAT, and GPx1) and Risk of Coronary Artery Disease. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5086869. [PMID: 30225256 PMCID: PMC6129348 DOI: 10.1155/2018/5086869] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/25/2018] [Accepted: 08/02/2018] [Indexed: 12/27/2022]
Abstract
Objective Reactive oxygen species (ROS) been cited as one of the major causes of atherosclerosis and coronary artery disease which are possible agents inducing DNA damage. Manganese superoxide dismutase (MnSOD), catalase (CAT), and glutathione peroxidase-1 (GPx1) have evolved to address primary defense against free radical mediated damage in mitochondria. The aim of this study was to delineate the association of MnSOD, CAT, and GPx1 polymorphisms and risk of CAD in Taiwan. Methods We conducted a case-control study with 657 participants recruited at a medical center. All subjects were evaluated by noninvasive stress test and then quantitative coronary angiography to confirm the diagnosis of CAD. 447 CAD cases were defined as >50% stenosis of coronary artery and 210 controls were stenosed below 50%. Polymorphisms of MnSOD (Val16Ala), CAT (C-262T), and GPx1 (Pro198Leu) genes were determined by polymerase chain reaction methods. Multivariate logistic regression model was used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs). Results The MnSOD Val/Ala+Ala/Ala genotype was significantly associated with an increased risk of CAD compared to the Val/Val genotype (OR = 1.86, 95% CI = 1.15-3.01). This polymorphism was also associated with the severity of CAD of single and two vessel diseases. The corresponding ORs were 2.31 (95% CI = 1.32-4.03) and 1.92 (95% CI = 1.02-3.61), respectively. Among cigarette smokers, the harmful genetic effect of MnSOD Ala allele on CAD risk was much higher (OR = 2.23, 95% CI = 1.02-4.88). However, the interaction between MnSOD genotype and cigarette smoking on CAD risk was not significant. No significant association between CAT and GPx1 polymorphisms and CAD risk was observed. Conclusion Our results suggest that MnSOD polymorphism is an independent risk factor for susceptibility to CAD in the Chinese population.
Collapse
|
28
|
Nassereddine S, Hassani Idrissi H, Habbal R, Abouelfath R, Korch F, Haraka M, Karkar A, Nadifi S. The polymorphism G894 T of endothelial nitric oxide synthase (eNOS) gene is associated with susceptibility to essential hypertension (EH) in Morocco. BMC MEDICAL GENETICS 2018; 19:127. [PMID: 30053839 PMCID: PMC6062870 DOI: 10.1186/s12881-018-0638-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/03/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hypertension is a multifactorial disease involving both environmental and genetic Factros. G894 T eNOS polymorphism has been suggested to be responsible for reduced NO synthesis, and EH development. The objective of our case-control study is to evaluate the potential association of G894 T eNOS polymorphism with Essential Hypertension (EH) susceptibility, among a sample of Moroccan patients. METHODS One hundred forty five hypertensive patients were recruited from the department of Cardiology, University Hospital Center Ibn Rochd, Casablanca, Morocco, and compared to 184 apparently healthy subjects. DNA samples were genotype by PCR-RFLP method using MboI restriction enzyme. RESULTS Our results showed a positive correlation between G894 T eNOS distribution and Alcohol and Obesity rik factors (P = 0.009 and 0.02 respectively). Patients with elevated Cardio Vascular Risk (CVR) carried out the higher frequency of homozygous mutant genotype TT (62.2%) and T mutant allele (77.8%), compared to median and low CVR groups. G894 T eNOS distribution was significantly associated to a high risk of EH occurrence under the GT and TT genotypes (OR [95% CI] = 20.2 [7.7-52.4], P < 0.0001; OR [95% CI] = 332.5 [98.2-1125.4], P < 0.0001 respectively), and the 3 genotypic transmission models (Dominant: OR [95% CI] = 43.2 [17.9-104.09], P < 0.0001; Recessive: OR [95% CI] = 47.7 [18.6-122.3]; P < 0.0001; Additive: OR [95% CI] = 14.02 [9.6-20.45], P < 0.0001). CONCLUSION Our study suggests a strong association of G894 T eNOS polymorphism with susceptibility to EH in Morocco. Studies trying to identify contributing genes may be very useful and allow recognizing the vulnerable individuals and classifying patients in subgroups with definite genetic and pathogenic mechanisms to achieve better prevention and therapeutics.
Collapse
Affiliation(s)
- Sanaa Nassereddine
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Hind Hassani Idrissi
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Rachida Habbal
- Department of Cardiology, University Hospital Center Ibn Rochd, Casablanca, Morocco
| | - Rhizlane Abouelfath
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Farah Korch
- Department of Cardiology, University Hospital Center Ibn Rochd, Casablanca, Morocco
| | - Majda Haraka
- Department of Cardiology, University Hospital Center Ibn Rochd, Casablanca, Morocco
| | - Adnane Karkar
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Sellama Nadifi
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| |
Collapse
|
29
|
Rishiraj U, Rohilla S, Kaur S. Correlation Between Intron 4 Polymorphism of the Endothelial Nitric Oxide Synthase Gene and Cardiovascular Risk with the Numbers of Circulating Endothelial Progenitor Cells in Healthy Subjects. Indian J Clin Biochem 2018; 33:202-207. [PMID: 29651212 DOI: 10.1007/s12291-017-0662-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/04/2017] [Indexed: 10/19/2022]
Abstract
In the present study, we investigated the relationship between an important 27 bp repeat polymorphism in intron 4 of eNOS and numbers of circulating EPCs in presence of cardiovascular disease (CVD) risk factors in a group of healthy human volunteers. The study comprised of 45 healthy subjects (30-50 years). These subjects had various degrees of CVD risk but no history of CVD. The repeat polymorphism of eNOS was detected by polymerase chain reaction and EPC levels were analyzed by flow cytometry. We observed a good association between the intronic 4 mutant a/b genotype and the combined Framingham risk factor score in our subjects (χ2 = 3.2, P = 0.07). EPC numbers in subjects with mutant eNOS a/b genotype were also less than those observed in subjects with normal eNOS b/b genotype (P = 0.06). Interestingly, subjects with eNOS a/b genotype showed a significant inverse correlation between framingham risk score and EPC numbers (R = -0.57, P < 0.05). The study suggests that the presence of CVD risk factors in subjects with eNOS intron 4 polymorphism results in reduced number of circulating EPCs, which may significantly predispose them to CVD and aberrant endothelial repair.
Collapse
Affiliation(s)
- Upasana Rishiraj
- 1School of Biotechnology, Gautam Buddha University, Greater Noida, UP 201310 India
| | - Sumati Rohilla
- 1School of Biotechnology, Gautam Buddha University, Greater Noida, UP 201310 India
| | - Savneet Kaur
- 1School of Biotechnology, Gautam Buddha University, Greater Noida, UP 201310 India.,2School of Biotechnology, Gautam Buddha University, Greater Noida, UP 201308 India
| |
Collapse
|
30
|
Moguib O, Raslan HM, Abdel Rasheed I, Effat L, Mohamed N, El Serougy S, Hussein G, Tawfeek S, AbdelRahman AH, Omar K. Endothelial nitric oxide synthase gene (T786C and G894T) polymorphisms in Egyptian patients with type 2 diabetes. J Genet Eng Biotechnol 2017; 15:431-436. [PMID: 30647683 PMCID: PMC6296602 DOI: 10.1016/j.jgeb.2017.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/06/2017] [Accepted: 05/07/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Genetic factors play important role in the development of type 2 diabetes and diabetic nephropathy. Endothelial nitric oxide synthase (eNOS) gene is responsible for the bioavailability of nitric oxide and endothelial function. AIM To assess the association of the endothelial nitric oxide synthase (eNOS) (T786C and G894T) single nucleotide polymorphisms with Egyptian type 2 diabetes mellitus and diabetic nephropathy. PATIENTS AND METHODS A total of 200 type 2 diabetic patients and 100 apparently healthy volunteers as controls were included in the study. They were subjected to clinical examination and laboratory tests: fasting blood glucose, HBA1C, lipid profile, serum creatinine, blood urea and albumin creatinine ratio (ACR). Assessment of the T786C and G894T polymorphisms in the eNOS gene was done using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS There was no significant difference in distribution of eNOS T-786C polymorphism between patients and controls; TT genotype of eNOS G894T was more frequent in diabetic patients with and without albuminuria compared to controls. Patients were divided into 3 groups according to ACR. Normoalbuminuria: 37 patients with ACR ≤ 30 mg/g, microalbuminuria: 96 patients with ACR > 30 mg/g and ≤ 300 mg/g, and macroalbuminuria: 67 patients with ACR > 300 mg/g. There was no significant difference in genotype distribution of eNOS T-786C between the 3 groups of diabetic patients. The prevalence of TT genotype of eNOS G894T was higher in microalbuminuria patients compared to other groups. CONCLUSION eNOS G894T variant may increase risk of type 2 diabetes with lack of association between eNOS T786C, eNOS G894T and DN in Egyptians.
Collapse
Affiliation(s)
- Omneya Moguib
- Internal Medicine Department, National Research Center, Egypt
| | - Hala M. Raslan
- Internal Medicine Department, National Research Center, Egypt
| | - Inas Abdel Rasheed
- Clinical and Chemical Pathology Department, National Research Center, Egypt
| | - Laila Effat
- Molecular Genetic Department, National Research Center, Egypt
| | - Nadia Mohamed
- Medical Biochemistry Department, National Research Center, Egypt
| | - Safaa El Serougy
- Occupational Health and Industrial Medicine Department, National Research Centre, Egypt
| | - Ghada Hussein
- Clinical and Chemical Pathology Department, National Institute of Diabetes and Endocrinology, Egypt
| | - Salwa Tawfeek
- Internal Medicine Department, National Research Center, Egypt
| | | | - Khalda Omar
- Molecular Genetic Department, National Research Center, Egypt
| |
Collapse
|
31
|
Yang B, Liu L, Peng Z, Lu D, Ren Z, Liu S, Yang X, Liao J, Dong Q. Functional Variations in the NOS3 Gene Are Associated With Erectile Dysfunction Susceptibility, Age of Onset and Severity in a Han Chinese Population. J Sex Med 2017; 14:551-557. [DOI: 10.1016/j.jsxm.2017.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 02/03/2017] [Accepted: 02/04/2017] [Indexed: 01/09/2023]
|
32
|
Oliveira-Paula GH, Lacchini R, Tanus-Santos JE. Clinical and pharmacogenetic impact of endothelial nitric oxide synthase polymorphisms on cardiovascular diseases. Nitric Oxide 2017; 63:39-51. [DOI: 10.1016/j.niox.2016.08.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/10/2016] [Accepted: 08/24/2016] [Indexed: 12/30/2022]
|
33
|
Armenis I, Kalotychou V, Tzanetea R, Kollia P, Kontogeorgiou Z, Anastasopoulou D, Mantzourani M, Samarkos M, Pantos K, Konstantopoulos K, Rombos I. Prognostic value of T786C and G894T eNOS polymorphisms in sickle cell disease. Nitric Oxide 2017; 62:17-23. [DOI: 10.1016/j.niox.2016.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/08/2016] [Accepted: 11/13/2016] [Indexed: 11/29/2022]
|
34
|
Navarro KG, Agyingi SE, Nwabuobi CK, Thomas BN. Polymorphism of the endothelin-1 gene (rs5370) is a potential contributor to sickle cell disease pathophysiology. Genes Dis 2016; 3:294-298. [PMID: 30258900 PMCID: PMC6147159 DOI: 10.1016/j.gendis.2016.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/09/2016] [Indexed: 02/08/2023] Open
Abstract
Sickle cell disease has been shown to demonstrate extensive variability in disease severity among and between individuals, the variability highlighted by differing genetic haplotypes. Despite the abundance of reports of functional significance due to polymorphisms of endothelial nitric oxide synthase (eNOS) and endothelin-1 (ET-1) genes, the role of these polymorphisms in mediating sickle cell disease pathophysiology among African Americans is presently unclear. To deconvolute their potential significance among African Americans with sickle cell disease, we examined the genetic diversity and haplotype frequency of eNOS and ET-1 polymorphisms in disease (n = 331) and control (n = 379) groups, with a polymerase-chain reaction restriction fragment length polymorphism assay. We report that genotypic and allelic frequencies of eNOS variants are not significantly different between groups. eNOS homozygote mutants, which had been shown to have clinical significance elsewhere, showed no statistical significance in our study. On the other hand, and contrary to previous report among Africans with sickle cell disease, the endothelin-1 homozygous mutant variant showed significant difference in genotypic (p = 2.84E-12) and allelic frequencies (p = 2.20E-16) between groups. The most common haplotype is the combination of T786C homozygote wild-type variant with homozygote mutant variants of G5665T (ET-1) and Glu298Asp (eNOS). These results show that endothelin-1 (rs5370) polymorphism, rather than endothelial nitric oxide synthase polymorphism might play a significant role in disease severity or individual clinical outcomes among African Americans with sickle cell disease. This would have profound implications for designing and/or advancing personalized care for sickle cell patients and relieving disease complications.
Collapse
Affiliation(s)
- Kristen G. Navarro
- Department of Biomedical Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Smith E. Agyingi
- Department of Biomedical Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA
| | - Chinedu K. Nwabuobi
- Department of Obstetrics and Gynecology, University of South Florida, Tampa, FL, USA
| | - Bolaji N. Thomas
- Department of Biomedical Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA
| |
Collapse
|
35
|
Chen LK, Huang CH, Yeh HM, Lee CN, Shyu MK, Hsieh FJ, Lai LP, Sun WZ. Polymorphisms in the Endothelial Nitric Oxide Synthase Gene May Be Protective Against Preeclampsia in a Chinese Population. Reprod Sci 2016; 14:175-81. [PMID: 17636229 DOI: 10.1177/1933719107299570] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The association between the endothelial nitric oxide synthase (eNOS) gene with vascular diseases in Western populations and with severe preeclampsia (PE) in the Japanese population have been demonstrated, lacing the data in Chinese population. The authors examine the association between PE and 2 polymorphisms of the eNOS gene in a Chinese population, consisting of 92 pregnant women with PE and 256 healthy controls. All were genotyped for the Glu298Asp polymorphism in exon 7 and the number of 27 base pair repeats in intron 4 of the eNOS gene. The frequencies of both the variant T allele and eNOS 4a (small allele with 4 repeats of 27 bp) were significantly lower in the PE group than in the control group. The genotype distribution of Glu298Glu, Glu298Asp, and Asp298Asp in eNOS exon 7 and bb type and ab type in eNOS intron 4 revealed statistically significant differences between control and PE groups. This is the first study to evaluate the association between 2 polymorphisms in the maternal eNOS gene with PE simultaneously in a Chinese population. Similar to the findings in Western populations, polymorphisms in the eNOS gene may be protective against PE in a Chinese population, in contrast to the results in the Japanese population.
Collapse
Affiliation(s)
- Li-Kuei Chen
- Department of Anesthesiology, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Fattakhov NS, Vasilenko MA, Skuratovskaia DA, Kulikov DI, Kirienkova EV, Zatolokin PA, Beletskaya MA, Litvinova LS. [Pathogenetic significance of C774T single nucleotide polymorphism of the endothelial NO synthase gene in the development of metabolic syndrome]. BIOMEDITSINSKAIA KHIMIIA 2016; 62:447-52. [PMID: 27562999 DOI: 10.18097/pbmc20166204447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The relationship between nitric oxide production and metabolic disorders and the role of endothelial nitric oxide synthase (eNOS or NOS3) in metabolic syndrome (MS) remain poorly understood and need deeper investigation. In this context the role of the NOS3 gene in pathogenesis of MS is of special interest. The aim of the study was to investigate association of NOS3 single nucleotide polymorphism C774T with risk of MS in the Slavic population of the Kaliningrad region and the relationship of this polymorphic variant with some parameters of endothelial dysfunction. The study included 128 patients (48 men and 80 women aged from 36 to 52 years) with MS. The control group consisted of 126 healthy volunteers (60 men and 66 women aged from 30 to 40 years). Genotyping was performed by real-time PCR. Serum nitrite levels were determined spectrophotometrically by the Griess method. Serum levels of endothelin-1 and eNOS were evaluated by ELISA. The study has shown association of T allele (OR=2.06; p=0.0004; CI: 1.38-3.08) and CT genotype (OR=1.97; p=0.014; CI: 1.14-3.40 ) C774T polymorphism of the NOS3 gene with risk of MS in the Slavic population of the Kaliningrad region. Allele C (OR=0.48; p=0.0004; CI: 0.32-0.72) and homozygous CC genotype (OR=0.41; p=0.001; CI: 0.24-0,69) C774T polymorphism of the NOS3 gene were associated with reduced risk of the development of MS. Significant differences in serum levels of eNOS and endothelin-1 depended on the CT and TT genotypes of C774T polymorphism of the NOS3 gene in MS.
Collapse
Affiliation(s)
- N S Fattakhov
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - M A Vasilenko
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | | | - D I Kulikov
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - E V Kirienkova
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - P A Zatolokin
- Regional Clinical Hospital of the Kaliningrad Region, Kaliningrad, Russia
| | - M A Beletskaya
- Municipal Children's Hospital No. 6, Kaliningrad, Russia
| | - L S Litvinova
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| |
Collapse
|
37
|
Chu WC, Aziz AFA, Nordin AJ, Cheah YK. Association of Cholesteryl Ester Transfer Protein and Endothelial Nitric Oxide Synthase Gene Polymorphisms With Coronary Artery Disease in the Multi-Ethnic Malaysian Population. Clin Appl Thromb Hemost 2016; 22:581-8. [DOI: 10.1177/1076029615571628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Genetic variants of cholesteryl ester transfer protein (CETP) and endothelial nitric oxide synthase (eNOS) influence high-density lipoprotein cholesterol (HDL-C) metabolism and nitric oxide (NO) synthesis, respectively, and might increase the risk of coronary artery disease (CAD). This study is to investigate the relationship between genetic polymorphisms and the risk of CAD and to evaluate their potential interactions. A total of 237 patients with CAD and 101 controls were genotyped. The association of the polymorphism with the risk of CAD varied among the ethnic groups. Moreover, the concomitant presence of both CETP B1 and eNOS 4a alleles significantly increased the risk of CAD in the Malay group (OR = 33.8, P < .001) and the Indian group (OR = 10.9, P = .031) but not in the Chinese group. This study has identified a novel ethnic-specific gene–gene interaction and suggested that the combination of CETP B1 allele and eNOS 4a allele significantly increases the risk of CAD in Malays and Indians.
Collapse
Affiliation(s)
- Wern Cui Chu
- Department of Biomedical Science, Faculty of Medicine and Health Science, University Putra Malaysia, Selangor, Malaysia
| | - Ahmad Fazli Abdul Aziz
- Centre for Diagnostic Nuclear Imaging, University Putra Malaysia, Selangor, Malaysia
- Department of Medicine, Faculty of Medicine and Health Science, University Putra Malaysia, Selangor, Malaysia
- Department of Cardiology, Hospital Serdang, Selangor, Malaysia
| | - Abdul Jalil Nordin
- Centre for Diagnostic Nuclear Imaging, University Putra Malaysia, Selangor, Malaysia
| | - Yoke Kqueen Cheah
- Department of Biomedical Science, Faculty of Medicine and Health Science, University Putra Malaysia, Selangor, Malaysia
- Centre for Diagnostic Nuclear Imaging, University Putra Malaysia, Selangor, Malaysia
| |
Collapse
|
38
|
Interactive role of endothelial nitric oxide synthase gene polymorphisms in T2D with CAD and CAD patients of Punjab (North-West India). Int J Diabetes Dev Ctries 2016. [DOI: 10.1007/s13410-016-0503-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
39
|
Oliveira-Paula GH, Lacchini R, Luizon MR, Fontana V, Silva PS, Biagi C, Tanus-Santos JE. Endothelial nitric oxide synthase tagSNPs influence the effects of enalapril in essential hypertension. Nitric Oxide 2016; 55-56:62-9. [DOI: 10.1016/j.niox.2016.03.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 11/25/2022]
|
40
|
Kahraman CY, Tasdemir S, Sahin I, Marzioglu Ozdemir E, Yaralı O, Ziypak T, Adanur S, Kahraman M, Tatar A. The Relationship Between Endothelial Nitric Oxide Synthase Gene (NOS3) Polymorphisms, NOS3 Expression, and Varicocele. Genet Test Mol Biomarkers 2016; 20:191-6. [DOI: 10.1089/gtmb.2015.0294] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Cigdem Yuce Kahraman
- Department of Medical Genetics, Erzurum Regional and Training Hospital, Erzurum, Turkey
| | - Sener Tasdemir
- Department of Medical Genetics, Ataturk University Medical Faculty, Erzurum, Turkey
| | - Ibrahim Sahin
- Department of Medical Genetics, Ataturk University Medical Faculty, Erzurum, Turkey
| | | | - Oguzhan Yaralı
- Department of Medical Genetics, Erzurum Regional and Training Hospital, Erzurum, Turkey
| | - Tevfik Ziypak
- Department of Urology, Ataturk University Medical Faculty, Erzurum, Turkey
| | - Senol Adanur
- Department of Urology, Ataturk University Medical Faculty, Erzurum, Turkey
| | - Mustafa Kahraman
- Department of Radiology, Erzurum Regional and Training Hospital, Erzurum, Turkey
| | - Abdulgani Tatar
- Department of Medical Genetics, Ataturk University Medical Faculty, Erzurum, Turkey
| |
Collapse
|
41
|
Oliveira-Paula GH, Lacchini R, Tanus-Santos JE. Endothelial nitric oxide synthase: From biochemistry and gene structure to clinical implications of NOS3 polymorphisms. Gene 2015; 575:584-99. [PMID: 26428312 DOI: 10.1016/j.gene.2015.09.061] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/10/2015] [Accepted: 09/22/2015] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) is an important vasodilator with a well-established role in cardiovascular homeostasis. While mediator is synthesized from L-arginine by neuronal, endothelial, and inducible nitric oxide synthases (NOS1,NOS3 and NOS2 respectively), NOS3 is the most important isoform for NO formation in the cardiovascular system. NOS3 is a dimeric enzyme whose expression and activity are regulated at transcriptional, posttranscriptional,and posttranslational levels. The NOS3 gene, which encodes NOS3, exhibits a number of polymorphic sites including single nucleotide polymorphisms (SNPs), variable number of tandem repeats (VNTRs), microsatellites, and insertions/deletions. Some NOS3 polymorphisms show functional effects on NOS3 expression or activity, thereby affecting NO formation. Interestingly, many studies have evaluated the effects of functional NOS3 polymorphisms on disease susceptibility and drug responses. Moreover, some studies have investigated how NOS3 haplotypes may impact endogenous NO formation and disease susceptibility. In this article,we carried out a comprehensive review to provide a basic understanding of biochemical mechanisms involved in NOS3 regulation and how genetic variations in NOS3 may translate into relevant clinical and pharmacogenetic implications.
Collapse
Affiliation(s)
- Gustavo H Oliveira-Paula
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Jose E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil.
| |
Collapse
|
42
|
Liu S, Zeng F, Wang C, Chen Z, Zhao B, Li K. The nitric oxide synthase 3 G894T polymorphism associated with Alzheimer's disease risk: a meta-analysis. Sci Rep 2015; 5:13598. [PMID: 26337484 PMCID: PMC4559797 DOI: 10.1038/srep13598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/27/2015] [Indexed: 12/23/2022] Open
Abstract
The association between the G894T polymorphism (Glu298Asp) of nitric oxide synthase 3 (NOS3) and risk of Alzheimer’s disease (AD) was explored by performing a meta-analysis of case-control studies. Bibliographical searches were conducted in the MEDLINE, EMBASE, and China National Knowledge Infrastructure (CNKI) databases without any language limitations. Two investigators independently assessed abstracts for relevant studies, and reviewed all eligible studies. We adopted regrouping in accordance with the most probably appropriate genetic model. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of this association. We performed a meta-analysis including 21 published articles with 23 case-control studies (5,670 cases and 5,046 controls). In the analyses, we found significant association between G894T polymorphism and AD risk under a complete overdominant model (GG + TT vs. GT) (OR = 1.18; 95%CI, 1.04–1.35; P = 0.010). When stratified by time of AD onset, we found the association between this polymorphism and AD susceptibility to be more substantial among late onset patients than among early onset patients (OR for late vs. early onset: 1.33 vs. 1.02, P interaction = 0.049). The meta-analysis showed that the polymorphism G894T of NOS3 was associated with risk of AD.
Collapse
Affiliation(s)
- Shengyuan Liu
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China.,Department of Chronic Disease, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - Fangfang Zeng
- Epidemiology research unit, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510080, China
| | - Changyi Wang
- Department of Chronic Disease, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - Zhongwei Chen
- Department of Chronic Disease, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen 518054, China
| | - Bin Zhao
- Institute of Neurology, Guangdong Medical College, Zhanjiang 524001, China
| | - Keshen Li
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China
| |
Collapse
|
43
|
Barcelos GRM, De Marco KC, de Rezende VB, Braga GÚL, Antunes LMG, Tanus-Santos JE, Barbosa F. Genetic Effects of eNOS Polymorphisms on Biomarkers Related to Cardiovascular Status in a Population Coexposed to Methylmercury and Lead. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 69:173-180. [PMID: 25690149 DOI: 10.1007/s00244-015-0137-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 02/01/2015] [Indexed: 06/04/2023]
Abstract
The aim of the present study was to evaluate possible effects of endothelial nitric oxide synthase (eNOS) polymorphisms on systolic (SBP) and diastolic blood pressure (DBP) and on nitrite levels in plasma (NitP) in a population coexposed to methylhemoglobin (MeHg) and lead (Pb) in the Amazonian region, Brazil. Plasmatic levels of hemoglobin Hg (HgP) and Pb (PbP) were determined by inductively coupled plasma-mass spectrometry, whereas NitP were quantified by chemiluminescence. Genotyping was performed by conventional and restriction fragment length polymorphism-polymerase chain reaction assay. The population age ranged from 18 to 87 years (mean 40 ± 16), and the distribution between the sexes was homogenous (63 men and 50 women). Mean HgP and PbP were 7.1 ± 6.1 and 1.1 ± 1.1 µg L(-1), respectively. PbP was correlated to SBP and DBP, whereas no effects were observed for HgP on blood pressure. Subjects carrying the 4b allele in intron 4 presented greater SBP and DBP compared with those who had the 4a4a genotype. In addition, interactions between alcohol consumption and the -786 T/C polymorphism were observed on NitP, i.e., individuals carrying the polymorphic allele and drinkers had lower NitP. Taken together, our data give new insights concerning the genetic effects of eNOS polymorphisms on biomarkers related to cardiovascular status in populations coexposed to Hg and Pb.
Collapse
Affiliation(s)
- Gustavo Rafael Mazzaron Barcelos
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/no, Ribeirão Preto, São Paulo, CEP 14040-903, Brazil,
| | | | | | | | | | | | | |
Collapse
|
44
|
Haldar SR, Chakrabarty A, Chowdhury S, Haldar A, Sengupta S, Bhattacharyya M. Oxidative stress-related genes in type 2 diabetes: association analysis and their clinical impact. Biochem Genet 2015; 53:93-119. [PMID: 25991559 DOI: 10.1007/s10528-015-9675-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 04/29/2015] [Indexed: 12/15/2022]
Abstract
Worldwide prevalence of diabetes mellitus motivates a number of association studies to be conducted throughout the world. Eleven polymorphisms from nine candidate genes in oxidative stress pathway have been analyzed in eastern Indian type 2 diabetic patients (n = 145) and healthy controls (n = 100). Different biochemical parameters were also analyzed for their association with the disease. Significant associations were observed for rs2070424 A>G SOD1 (OR 3.91, 95% CI 2.265-8.142, P < 0.001), rs854573 A>G PON1 (OR 3.415, 95% CI 2.116-5.512, P < 0.001), rs6954345 G>C PON2 (OR 3.208, 95% CI 2.071-4.969, P < 0.001), RAGE rs1800624 -374 T>A (OR 3.58, 95% CI 2.218-5.766, P < 0.001), and NOS3 -786 T>C (OR 3.75, 95% CI 2.225-6.666, P < 0.001). Haplotype containing two risk alleles of PON1 and PON2 genes was significantly associated with disease (OR 8.34, 95% CI 1.554-44.804, P < 0.002). Our results suggest that carriers of major and efficient alleles of oxidative stress genes are more likely to survive the comorbid complications and single copy of risk allele is sufficient for developing the disease.
Collapse
Affiliation(s)
- Suranjana Ray Haldar
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India,
| | | | | | | | | | | |
Collapse
|
45
|
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.
Collapse
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.
| |
Collapse
|
46
|
García-González I, Solís-Cárdenas ADJ, Flores-Ocampo JA, Alejos-Mex R, Herrera-Sánchez LF, González-Herrera LJ. Polimorfismos G894T del gen NOS3 y G1958A del gen MTHFD1 y riesgo de cardiopatía isquémica en Yucatán, México. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2015; 27:64-73. [DOI: 10.1016/j.arteri.2014.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/27/2014] [Accepted: 07/28/2014] [Indexed: 11/16/2022]
|
47
|
Seidlerová J, Filipovský J, Mayer Jr O, Kučerová A, Pešta M. Association between endothelial NO synthase polymorphisms and arterial properties in the general population. Nitric Oxide 2015; 44:47-51. [DOI: 10.1016/j.niox.2014.11.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/14/2014] [Accepted: 11/26/2014] [Indexed: 10/24/2022]
|
48
|
Śladowska-Kozłowska J, Litwin M, Niemirska A, Wierzbicka A, Roszczynko M, Szperl M. Associations of the eNOS G894T gene polymorphism with target organ damage in children with newly diagnosed primary hypertension. Pediatr Nephrol 2015; 30:2189-97. [PMID: 26227630 PMCID: PMC4623091 DOI: 10.1007/s00467-015-3164-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 06/17/2015] [Accepted: 06/29/2015] [Indexed: 01/19/2023]
Abstract
BACKGROUND The endothelial nitric oxide synthase (eNOS) G894T gene polymorphism is associated with the risk of primary hypertension (PH) and vascular complications in adults with PH. METHODS We explored the associations of the G894T polymorphism with 24-h ambulatory blood pressure, left ventricular mass (LVM), carotid intima media thickness (cIMT), urinary albumin excretion, oxidative stress and inflammatory parameters in 126 children with newly diagnosed PH and in 83 healthy children. RESULTS Among the 126 children with PH 92 (73%) had ambulatory hypertension and 34 (27%) had severe ambulatory hypertension. Left ventricular hypertrophy (LVH) was detected in 39 (31%) patients, cIMT of >2 standard deviation scores in 21 (16.6%) patients, albuminuria of >30 mg/24 h in 18 (14.3%) patients and metabolic syndrome (MS) in 22 (17.5%) patients. The frequency of the T allele was 52.4% in the PH group and 54.2% in the control group (not significant), and in both groups the frequency of the T allele was consistent with the Hardy-Weinberg equilibrium. Compared with G allele carriers, hypertensive T allele carriers had increased cIMT (p < 0.05) and more severe albuminuria (not significant, p = 0.1); there was no difference between the groups in hypertension severity and LVM. T and G allele distribution did not differ between patients with and without metabolic syndrome. No significant correlations between the assessed parameters and the eNOS G894T gene polymorphism were found in the controls, although T allele carriers tended to have an increased cIMT (p = 0.09). CONCLUSION The eNOS T allele is not more prevalent among hypertensive children than among healthy ones, but it is associated with early vascular damage in children with PH, independent of metabolic abnormalities. No associations between the eNOS G894T polymorphism and metabolic abnormalities were found.
Collapse
Affiliation(s)
- Joanna Śladowska-Kozłowska
- Department of Nephrology and Arterial Hypertension, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Mieczysław Litwin
- Department of Nephrology and Arterial Hypertension, The Children's Memorial Health Institute, Warsaw, Poland.
| | - Anna Niemirska
- Department of Nephrology and Arterial Hypertension, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Aldona Wierzbicka
- Department of Biochemistry and Experimental Medicine, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Marta Roszczynko
- Department of Molecular Biology, Institute of Cardiology, Warsaw, Poland
| | - Małgorzata Szperl
- Department of Molecular Biology, Institute of Cardiology, Warsaw, Poland
| |
Collapse
|
49
|
Yang C, Qi ZY, Shao C, Xing WK, Wang Z. Association between three eNOS polymorphisms and intracranial aneurysms risk: a meta-analysis. Medicine (Baltimore) 2015; 94:e452. [PMID: 25634184 PMCID: PMC4602985 DOI: 10.1097/md.0000000000000452] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Endothelial nitric oxide synthase (eNOS) is the catalyst of endothelial nitric oxide (NO) synthesis. Polymorphisms in the eNOS gene may influence the risk of intracranial aneurysm (IA), but the results of existing researches are still inconsistent. Thus, we performed the present meta-analysis to derive a more precise estimation between eNOS polymorphisms (T786C, G894T, 27-bp-variable number of tandem repeat [VNTR]) and IA risk. Case-control studies evaluating the association between the eNOS polymorphisms and IA risk were searched in PubMed, Ovid & Embase, Web of Science, and Chinese Wanfang datasets with the last search up to July 15, 2014. The pooled odds ratios (ORs) for the association between eNOS polymorphisms and IA and their corresponding 95% confidence intervals (CIs) were estimated using the random or fixed-effects model. Finally, 10 studies for T786C polymorphism (1819 cases and 1893 controls), 9 studies for G894T polymorphism (1393 cases and 1508 controls), and 7 studies for 27-bp-VNTR polymorphism (1281 cases and 1406 controls) were included in the meta-analyses. In the overall analysis, no evidence of association between eNOS polymorphisms and susceptibility of IA was found. When subgrouped by race descent, significantly increased risk was detected among Asians for T786C polymorphism (heterozygous comparison of codominant model: OR = 1.294, 95% CI = 1.025-1.634; dominant model: OR = 1.277, 95% CI = 1.019-1.600), but not in Caucasians or the other 2 polymorphisms. Our meta-analysis suggested that T786C polymorphism was associated with increased risk of IA among Asians, whereas G894T and 27-bp-VNTR polymorphisms might have no influence on the susceptibility of IA.
Collapse
Affiliation(s)
- Chao Yang
- From the Department of Neurosurgery (CY, ZQ, WX, ZW), The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu; and Department of Neurosurgery (CS), The Second Clinical Medical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | | | | | | | | |
Collapse
|
50
|
Mackawy AMH, Khan AA, Badawy MES. Association of the endothelial nitric oxide synthase gene G894T polymorphism with the risk of diabetic nephropathy in Qassim region, Saudi Arabia-A pilot study. Meta Gene 2014; 2:392-402. [PMID: 25606424 PMCID: PMC4287856 DOI: 10.1016/j.mgene.2014.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/02/2014] [Accepted: 04/26/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a chronic microangiopathic complication of type 2 diabetes mellitus (DM).Vascular endothelial dysfunction resulting from impaired nitric oxide synthase (NOS) activity in the vascular endothelial cells has been suggested as playing an important role in the pathogenesis of diabetic nephropathy (DN). Endothelial nitric oxide synthase (E-NOS) gene G894T polymorphism has been reported to be associated with endothelial dysfunction leading to DN. Our objective was to evaluate the association of G894T polymorphism of eNOS gene with the risk of DN among type 2 diabetic Saudi patients. METHODS One hundred and twenty subjects were included in this study. They were divided into three groups. Group I, 40 controls. Group II, 40 type 2 diabetic patients without nephropathy. Group III, 40 type2 diabetic patients with nephropathy. Endothelial nitric oxide synthase (eNOS) G894Tpolymorphism was detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Plasma nitric oxide (NO) levels were estimated. RESULTS E-NOS genotype frequency showed non-significant differences among the all studied groups (p > 0.05). Both diabetic groups had significantly higher plasma nitrate levels than in controls with a significant increase in group III than in group II patients (all p < 0.0001). E NOS 894TT genotype was associated with higher plasma nitrate levels in all groups. CONCLUSION E-NOS gene SNP is not considered as genetic risk factor for DN among type 2 diabetic Saudi patients. The higher plasma levels of nitrates as a marker of oxidative stress in diabetic patients with nephropathy suggest the possible role of oxidative stress but not e-NOS gene SNP in pathogenesis of the DN.
Collapse
Affiliation(s)
- Amal Mohammed Husein Mackawy
- Medical Biochemistry and Molecular Biology, Faculty of MEdicine, Zagazig University and Medical Laboratory department, Applied Medical Science, Qassim University, Saudi Arabia
| | - Amjad Ali Khan
- Applied Medical Science College, Qassim University, Saudi Arabia
| | | |
Collapse
|