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Balci S, Akbayir S, Bozlu M, Tamer L. Investigation of the relationship between endothelial nitric oxide synthase T786C polymorphism and PSA, PSA derivatives, and prostate cancer in the Turkish population. J Med Biochem 2023; 42:357-363. [PMID: 37814619 PMCID: PMC10560506 DOI: 10.5937/jomb0-33122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/03/2022] [Indexed: 10/11/2023] Open
Abstract
Background Prostate cancer is a slowly progressing cancer. However, it has remained a major medical problem for affected men. Risk factors of prostate cancer include age, race, and prostate cancer family history. Prostate cancer may occur at different frequencies between ethnic populations and countries. Currently, studies on genetic risk factors in prostate cancer aetiology have been increasing. Due to the importance of changes in endothelial nitric oxide synthase in carcinogenesis, we aimed to reveal whether eNOS T786C polymorphism is associated with prostate cancer. Methods Archival samples included in this study were whole blood samples taken from patients who were grouped according to prostate biopsy pathology results (BPH, n: 42; PCa, n: 48) and from healthy participants (controls, n:27). DNA was isolated from these whole blood samples and real-time polymerase chain reaction analysis was performed for endothelial nitric oxide synthase T786C polymorphism with LightCycler 480 II. Measured free and total prostate-specific antigen serum levels were evaluated retrospectively. Results There was a statistical difference between patient-healthy control and control-healthy control groups regarding genotype distributions for eNOS T786C hism. Controls were more likely to have TC and CC genotypes and C alleles than the other two groups. Conclusions Compared to other groups, the percentage of the eNOS786C allele in the control group was found to be higher. As a result of these data, it can be thought that carrying the allele may be protective against the disease.
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Affiliation(s)
- Senay Balci
- Mersin University, Faculty of Medicine, Department of Biochemistry, Yenisehir/Mersın, Turkey
| | - Serin Akbayir
- Kiziltepe State Hospital, Central Laboratory, Mardin, Turkey
| | - Murat Bozlu
- Mersin University Hospital, Department of Urology, Yenisehir/Mersın, Turkey
| | - Lulufer Tamer
- Mersin University, Faculty of Medicine, Department of Biochemistry, Yenisehir/Mersın, Turkey
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Wang D, Liu L, Zhang C, Lu W, Wu F, He X. Evaluation of Association Studies and Meta-Analyses of eNOS Polymorphisms in Type 2 Diabetes Mellitus Risk. Front Genet 2022; 13:887415. [PMID: 35832187 PMCID: PMC9271911 DOI: 10.3389/fgene.2022.887415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Numerous studies reported the associations between endothelial nitric oxide synthase (eNOS) polymorphisms (4b/a VNTR (rs869109213), G894T (rs1799983) and T786C (rs2070744)) and type 2 diabetes mellitus (T2DM) risk. However, the conclusions were incongruent. Moreover, since no published meta-analyses were performed, a key issue regarding false-positive results needs to be addressed. Furthermore, four new articles have been published on these issues. Therefore, an updated meta-analysis was conducted to further explore these associations. Objectives: To investigate the association between eNOS 4b/a, G894T and T786C polymorphisms and T2DM risk. Methods: Studies were searched by using the PubMed, China National Knowledge Infrastructure (CNKI), Medline, Embase, International Statistical Institute (ISI) and the China Wanfang databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the associations using five genetic models. Furthermore, the false-positive report probability (FPRP), Bayesian false discovery probability (BFDP), and the Venice criteria were employed to assess the credibility of statistically significant associations. Results: Overall, the eNOS 4b/a polymorphism was associated with a significantly decreased T2DM risk in Asians (bb vs. aa: OR = 0.44, 95% CI = 0.23–0.84; ab + bb vs. aa: OR = 0.45, 95% CI = 0.24–0.86; bb vs. aa + ab: OR = 0.73, 95% CI = 0.59–0.91; b vs. a: OR = 0.71, 95% CI = 0.57–0.88); the eNOS G894T polymorphism was associated with a significantly increased T2DM risk in Asians (GT vs. GG: OR = 1.52, 95% CI = 1.15–2.01; GT + TT vs. GG: OR = 1.52, 95% CI = 1.15–2.01; T vs. G: OR = 1.39, 95% CI = 1.09–1.76); the eNOS T786C polymorphism was associated with a significantly increased T2DM risk in Indian (TC vs. TT: OR = 1.93, 95% CI = 1.27–2.94; TC + CC vs. TT: OR = 2.06, 95%CI = 1.26–3.36; C vs. T: OR = 1.90, 95%CI = 1.17–3.08). However, when a sensitivity analysis was performed after excluding low quality and Hardy–Weinberg Disequilibrium (HWD) studies, no significant association was found for the eNOS G894T polymorphism. After credibility assessment, we identified “less-credible positive results” for the statistically significant associations in the current meta-analysis. Conclusion: In conclusion, this article suggests that all substantial relationships between eNOS 4b/a, G894T, and T786C polymorphisms and T2DM risk are most likely due to false positive results rather than real connections or biological variables.
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Affiliation(s)
- Di Wang
- Changzhi Medical College, Changzhi, China
| | | | | | - Wensheng Lu
- Department of Endocrinology and Metabolism, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
- *Correspondence: Wensheng Lu, ; Feifei Wu, ; Xiaofeng He,
| | - Feifei Wu
- Department of Endocrinology and Metabolism, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
- *Correspondence: Wensheng Lu, ; Feifei Wu, ; Xiaofeng He,
| | - Xiaofeng He
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
- Institute of Evidence-Based Medicine, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
- *Correspondence: Wensheng Lu, ; Feifei Wu, ; Xiaofeng He,
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Ko EJ, Kim EJ, Cho HJ, Oh J, Park HS, Ryu CS, Kim JO, Jun HH, Chong SY, Kim JW, Kim NK. Prognostic significance of three endothelial nitric oxide synthase (eNOS) polymorphisms and metabolic syndrome (MetS) in patients with colorectal cancer. Genes Genomics 2022; 44:659-670. [PMID: 35377131 DOI: 10.1007/s13258-022-01246-9] [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: 12/06/2021] [Accepted: 03/12/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Polymorphisms of endothelial nitric oxide synthases (eNOS) have been associated with cancer susceptibility. Also, metabolic syndrome is associated with cancer malignancy. However, the effect of eNOS polymorphisms and metabolic syndrome on colorectal cancer (CRC) prognosis remains unclear. OBJECTIVE To investigated whether three genetic polymorphisms (- 786 T > C rs2070744, 4a4b rs869109213, and 894G > T rs1799983) in the eNOS and metabolic syndrome (MetS) were associated with CRC patient survival. METHODS We genotyped three polymorphisms of eNOS (- 786 T > C, 4a4b, and 894G > T) in 312 CRC cases from the Korean population by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. RESULTS Although the three eNOS polymorphisms were not causative of MetS, the TT genotype of the 894G > T polymorphism was associated with a worse survival rate compared with the GG genotype in the CRC group with MetS than in the CRC group without MetS (5-years survival; adjusted HR = 54.777; 95% CI 5.073-591.487 and RFS; adjusted HR = 14.909; 95% CI 1.571-141.528). CONCLUSIONS The eNOS polymorphisms were not associated with metabolic syndrome prevalence in CRC patients. However, our findings suggest that the eNOS 894G > T polymorphism with MetS was associated with poor clinical outcomes.
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Affiliation(s)
- Eun Ju Ko
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Eo Jin Kim
- Division of Hematology/Oncology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hye Jung Cho
- Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Jisu Oh
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea.,Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Han Sung Park
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Chang Soo Ryu
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Jung Oh Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Hak Hoon Jun
- Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - So Young Chong
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Jong Woo Kim
- Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea.
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea.
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A multicenter case-control study of the effect of e-nos VNTR polymorphism on upper gastrointestinal hemorrhage in NSAID users. Sci Rep 2021; 11:19923. [PMID: 34620931 PMCID: PMC8497469 DOI: 10.1038/s41598-021-99402-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/23/2021] [Indexed: 01/03/2023] Open
Abstract
Bleeding in non-steroidal anti-inflammatory drug (NSAID) users limited their prescription. This first multicenter full case–control study (325 cases and 744 controls), explored the association of e-NOS intron 4 variable number tandem repeat (VNTR) polymorphism with upper gastrointestinal hemorrhage (UGIH) in NSAID exposed and unexposed populations and assessed any interaction between this polymorphism and NSAIDs. NSAID users carrying e-NOS intron 4 wild type genotype or VNTR polymorphism have higher odds of UGIH than those unexposed to NSAIDs [Odds Ratio (OR): 6.62 (95% Confidence Interval (CI): 4.24, 10.36) and OR: 5.41 (95% CI 2.62, 11.51), respectively], with no effect modification from VNTR polymorphism-NSAIDs interaction [Relative Excess Risk due to Interaction (RERI): −1.35 (95% CI −5.73, 3.03); Synergism Index (S): 0.77 (95% CI 0.31, 1.94)]. Similar findings were obtained for aspirin exposure. Non-aspirin NSAID users who carry e-NOS intron 4 VNTR polymorphism have lower odds of UGIH [OR: 4.02 (95% CI 1.85, 8.75) than those users with wild type genotype [OR: 6.52 (95% CI 4.09, 10.38)]; though the interaction estimates are not statistically significant [RERI: −2.68 (95% CI −6.67, 1.31); S: 0.53 (95% CI 0.18, 1.55)]. This exploratory study suggests that the odds of UGIH in NSAID or aspirin users does not modify according to patient´s e-NOS intron 4 genotype.
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Bhaskar L. Susceptibility to vascular complications in sickle cell anemia patients is associated with intron 4a/b polymorphism of the NOS3 gene: A meta-analysis. Meta Gene 2021. [DOI: 10.1016/j.mgene.2021.100870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Albrecht ED, Babischkin JS, Aberdeen GW, Burch MG, Pepe GJ. Maternal systemic vascular dysfunction in a primate model of defective uterine spiral artery remodeling. Am J Physiol Heart Circ Physiol 2021; 320:H1712-H1723. [PMID: 33666502 DOI: 10.1152/ajpheart.00613.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Uterine spiral artery remodeling (UAR) is essential for placental perfusion and fetal development. A defect in UAR underpins placental ischemia disorders, e.g., preeclampsia, that result in maternal systemic vascular endothelial dysfunction and hypertension. We have established a model of impaired UAR by prematurely elevating maternal serum estradiol levels during the first trimester of baboon pregnancy. However, it is unknown whether this experimental paradigm is associated with maternal vascular endothelial dysfunction. Therefore, in the present study baboons were administered estradiol on days 25-59 of gestation to suppress UAR and maternal vascular function determined on day 165 (term = 184 days) peripherally and in skeletal muscle, which accounts for over 40% of body mass and 25% of resting systemic vascular resistance. Maternal serum sFlt-1 levels were 2.5-fold higher (P < 0.05), and skeletal muscle arteriolar endothelial nitric oxide synthase (eNOS) protein expression and luminal area, and skeletal muscle capillary density were 30-50% lower (P < 0.05) in UAR suppressed baboons. Coinciding with these changes in eNOS expression, luminal area, and capillary density, maternal brachial artery flow-mediated dilation and volume flow were 70% and 55% lower (P < 0.05), respectively, and mean arterial blood pressure 29% higher (P < 0.01) in UAR defective baboons. In summary, maternal vascular function was disrupted in a baboon model of impaired UAR. These results highlight the translational impact of this primate model and relevance to adverse conditions of human pregnancy underpinned by improper uterine artery transformation.NEW & NOTEWORTHY Maternal vascular dysfunction is a hallmark of abnormal human pregnancy, particularly early-onset preeclampsia, elicited by impaired UAR. The present study makes the novel discovery that maternal systemic vascular dysfunction was induced in a baboon experimental model of impaired UAR. This study highlights the translational relevance of this nonhuman primate model to adverse conditions of human pregnancy underpinned by defective UAR.
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Affiliation(s)
- Eugene D Albrecht
- Department of Obstetrics, Gynecology, and Reproductive Sciences and Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jeffery S Babischkin
- Department of Obstetrics, Gynecology, and Reproductive Sciences and Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Graham W Aberdeen
- Department of Obstetrics, Gynecology, and Reproductive Sciences and Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Marcia G Burch
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Gerald J Pepe
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
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The effects of regular aerobic exercise training on blood nitric oxide levels and oxidized LDL and the role of eNOS intron 4a/b polymorphism. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165913. [PMID: 32795498 DOI: 10.1016/j.bbadis.2020.165913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/03/2020] [Accepted: 07/31/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Nitric oxide (NO), oxidized LDL (OxLDL) and endothelial nitric oxide synthase intron 4a/b polymorphism (eNOSP) are related to atherosclerosis (AS). The present study investigated the effects of regular aerobic exercise training on the mentioned risk factors as well as blood lipids and lipoproteins (BLLPs) and the role of eNOSP, which is unclear. METHODS The study was participated by 46 well trained male soccer referees as the athletic group (AG, age; 23.26 ± 2.84 years) and 43 sedentary controls (CG, age; 23.16 ± 3.28 years). Yoyo intermittent endurance (Yoyo IE-2 test) was performed to measure aerobic endurance levels of the participants. Serum NO, eNOS and oxidized LDL (OxLDL) levels (by ELISA method) and total oxidant /antioxidant status ratio (/TOS/TAS) as oxidative stress (OS) index (OSI) and BLLPs levels were determined. eNOSP was identified from genomic DNA samples with VNTR analysis. RESULTS There is no significant difference between AG and CG including the genotype groups for NO, eNOS and BLLPs and eNOSP has no role. However, AG's NO (29%, p > .05) and TAS levels were significantly higher (p = .001) than those of CG, whereas OSI (p = .001) and OxLDL (p = .011) values were significantly lower. On the other hand, NO value of the athletic bb group was 29% higher compared with the control and the a carrier (aC = aa + ab) group. CONCLUSIONS These findings suggest that regular aerobic exercise improves blood NO levels and antioxidant capacity, while decreasing OS levels including OxLDL, but not eNOS and BLLPs in the athletes. Although the polymorphism does not have a modifying effect on these effects, bb genotype group may benefit more from training for NO than aC group due to genetic tendency.
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Cerqueira ARD, Fratelli CF, Duarte LCDAC, Pereira ASR, Morais RMD, Sobrinho AB, Silva CMDS, Silva ICRD, Oliveira JRD. The impact of NOS3 gene polymorphism on papillary thyroid cancer susceptibility in patients undergoing radioiodine therapy. Int J Biol Markers 2020; 35:87-91. [PMID: 33208017 DOI: 10.1177/1724600820961787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thyroid cancer is the most common endocrine cancer in the world. Noting that the NOS3 gene polymorphism interferes with nitric oxide production, this study aims to identify and analyze the NOS3 gene polymorphism in the intron 4 region in patients with papillary thyroid cancer. A case-control study was conducted with 31 papillary thyroid cancer patients of both genders who underwent thyroidectomy and treatment with sodium iodide radiopharmaceutical (131I) compared with 81 control patients. Through papillary thyroid cancer, the results were observed, compiled, and analyzed using SPSS version 25.0. The significance level of 5% was adopted. Genotypic frequencies of healthy subjects were in the Hardy-Weinberg equilibrium (P = 0.503). There was a significant genotypic difference between papillary thyroid cancer and healthy individuals (P <0.001). The BB genotype conferred a protective factor for papillary thyroid cancer (P <0.001, odds ratio (OR) 0.16; 95% confidence interval (CI) 0.06, 0.42), while the presence of the A allele appears to be a risk factor for papillary thyroid cancer (P <0.001, OR 3.54; 95% CI 1.86, 6.73). The intron 4 polymorphism of the NOS3 gene was associated with susceptibility to papillary thyroid cancer. Thus, future research into the effects of this polymorphism is essential.
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9
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Chen Y, Chen L, Zhou Q. Genetic association between eNOS gene polymorphisms and risk of carotid atherosclerosis : A meta-analysis. Herz 2020; 46:253-264. [PMID: 33095272 DOI: 10.1007/s00059-020-04995-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/20/2020] [Accepted: 09/25/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND Endothelial nitric oxide synthase (eNOS) has been reported to be involved in the atherosclerotic process. A number of studies have investigated the association between eNOS gene polymorphisms and the risk of carotid atherosclerosis (CAS). However, the results are conflicting and inconclusive. The aim of this study was to evaluate precisely the association between the eNOS T786C, G894T, and 4a/4b polymorphisms and CAS risk. MATERIAL AND METHODS A meta-analysis was carried out by retrieving relevant studies from PubMed, Embase, China National Knowledge Infrastructure (CNKI), and Cochrane databases without a restriction on publication year. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were used to describe the strength of the association with CAS. RESULTS Data were obtained from eight case-control studies comprising 2975 cases and 2624 controls. Significant associations were detected between the allelic and recessive models of the eNOS T786C polymorphism (allelic: p = 0.04; OR, 95% CI = 1.57 [1.01, 2.44]; recessive: p = 0.03; OR, 95% CI = 1.53 [1.04, 2.24]), as well as the allelic and dominant models of the eNOS 4a/4b polymorphism, and CAS risk in an Asian subgroup (allelic: p = 0.02; OR, 95% CI = 1.49 [1.07, 2.07]; dominant: p = 0.01; OR, 95% CI = 1.50 [1.09, 2.05]), but not in a Caucasian subgroup (p > 0.05). No association was observed between the eNOS G894T polymorphism and CAS risk (p > 0.05). CONCLUSION Our study provides evidence that the allelic and recessive models of the eNOS T786C polymorphism and the allelic and dominant models of the eNOS 4a/4b polymorphism may increase the risk of CAS in Asian populations.
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Affiliation(s)
- Yongheng Chen
- Department of Cardiology, The First Affiliated Hospital, Changsha Medical University, 410219, Changsha, China
| | - Lin Chen
- Department of Cardiology, The First Affiliated Hospital, Changsha Medical University, 410219, Changsha, China
| | - Qiliang Zhou
- Department of Human Anatomy, School of Basic Medical Science, Changsha Medical University, 410219, Changsha, China.
- Department of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, 410219, Changsha, China.
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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.
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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.
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Cozma A, Fodor A, Orasan OH, Vulturar R, Samplelean D, Negrean V, Muresan C, Suharoschi R, Sitar-Taut A. Pharmacogenetic Implications of eNOS Polymorphisms ( Glu298Asp, T786C, 4b/4a) in Cardiovascular Drug Therapy. In Vivo 2019; 33:1051-1058. [PMID: 31280192 DOI: 10.21873/invivo.11573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/09/2019] [Accepted: 06/19/2019] [Indexed: 12/17/2022]
Abstract
Endothelial nitric oxide synthase (NOS3 or eNOS) is the enzyme responsible for the highest production of nitric oxide, with the greatest impact on the cardiovascular system, encoded by the eNOS gene, which presents various polymorphisms. ENOS gene polymorphisms play an important role in the response to drugs affecting nitric oxide (NO) signaling. This review discusses the pharmacogenetic impact of eNOS polymorphisms on the response to drugs affecting NO activity: angiotensin converting enzyme inhibitors, angiotensin II receptor antagonists, calcium blockers, beta-blockers, diuretics, phosphodiesterase inhibitors, and statins. The identification of biomarkers that accurately predict particular phenotypes is a challenge that needs additional large studies, in different populations. Efforts should be oriented towards a more accurate evaluation of the effects of eNOS genetic variants on biochemical parameters reflecting eNOS gene expression and enzymatic activity, in different diseases, as well as following drug treatment. This approach will allow for a better understanding of the role of eNOS genetic variants in cardiovascular disease progression and for cardiovascular drug therapy optimization.
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Affiliation(s)
- Angela Cozma
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,4th Internal Medicine Department, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Adriana Fodor
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,Clinical Center of Diabetes, Nutrition and Metabolic Disease, Cluj-Napoca, Romania
| | - Olga Hilda Orasan
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,4th Internal Medicine Department, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Romana Vulturar
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,Department of Cell Biology, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Dorel Samplelean
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,4th Internal Medicine Department, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Vasile Negrean
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,4th Internal Medicine Department, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Crina Muresan
- University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Faculty of Food Science &Technology, Cluj-Napoca, Romania
| | - Ramona Suharoschi
- University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Faculty of Food Science &Technology, Cluj-Napoca, Romania
| | - Adela Sitar-Taut
- University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania.,4th Internal Medicine Department, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
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Konar SK, Ramesh S, Christopher R, Prasanthi A, Bhat DI, Shukla D, Bharath R, Devi BI. The Correlation of Endothelial Nitric Oxide Synthase ( eNOS) Polymorphism and Other Risk Factors with Aneurysmal Subarachnoid Hemorrhage: A Case-Control Study. Neurol India 2019; 67:1006-1012. [PMID: 31512622 DOI: 10.4103/0028-3886.266231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objective Endothelial nitric oxide synthase gene (eNOS) polymorphism is an association with cerebral aneurysm formation, rupture, and vasospasm and plays a role in the a functional outcome. Patients and Methods The aim of the study was to evaluate the role of eNOS gene polymorphism and further assess the predictors of outcome in the aneurysmal subarachnoid hemorrhage (aSAH). A prospective case-control study was conducted from 2009 to 2012 among those who presented with aSAH. A serum sample was collected from aSAH patients along with age and sex-matched healthy controls. The frequency of polymorphism of eNOS gene and other factors (demographic and aneurysmal) were correlated with functional outcome at six month of follow-up. Results 100 patients with aSAH and 100 healthy controls were enrolled in the cohort. The mean age of the patient group was 51.61 years and control group was 45.81 years with a male:female ratio of 1:1.38 and 1:1.08 for patients and controls, respectively. Among all eNOS polymorphisms, 4BB (65%) 24-VNTR, TT (71%) of T-786C, and GG (71%) of G947T were the most common and frequency was similar in the control group. The occurrences of hypertension, smoking, diabetes were 32%, 37%, and 7% respectively in the patient group. Maximum patients were in WFNS grade 1 (53%) followed by 23% grade 2 and only 10% in grade 4. Fisher grade 3 (57%) was the most common followed by Fisher grade 4 (28%). Most aneurysms (97%) were in anterior circulation. 83% of the aneurysms were clipped and 10% underwent coiling. Size-wise most of the aneurysms were in the middle group (6-9 mm) followed by bigger group (>10 mm) (37%); only 6% aneurysms were in the small aneurysm (<6 mm) group. 33% of the patients had evidence of vasospasm. TT of G894T polymorphism (60%) had the highest incidence of vasospasm. Univariate analysis showed smoking (OR: 3.19, CI: 1.19-8.84, P = 0.01), 4AA (OR: 12.15, CI: 1.13-624.9, P = 0.03) variety of 24-VNTR polymorphism, CC (OR: 15.39, CI: 1.60-762.8, P = 0.01) variety of T786C polymorphism, Fisher grade 4 (OR: 3.43, CI: 1.24-9.68, P = 0.01), WFNS grade (poor vs. good) (OR: 3.42, CI: 1.17-10.12, P = 0.02), vasospasm (OR: 3.84, CI: 1.42-10.75, P = 0.006), intraoperative rupture (OR: 4.77, CI: 1.55-15.27, P = 0.004) were significantly related with unfavorable outcome at 6 months follow-up. In regression analysis, smoking (CI: 0.06-0.69, P = 0.01), Fisher grade 4 (CI: 0.09-1.00, P = 0.05), and intraoperative rupture (CI: 0.05-0.89, P = 0.03) were correlated with an unfavorable outcome at 6 months follow-up. Conclusion The eNOS gene polymorphism, smoking, clinical grade (WFNS), Fisher grade, intraoperative rupture, and vasospasm play a role in functional outcome after the treatment of cerebral aneurysms.
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Affiliation(s)
- Subhas K Konar
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Shruthi Ramesh
- Department of Neurochemistry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Rita Christopher
- Department of Neurochemistry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - A Prasanthi
- Department of Neurochemistry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Dhananjaya I Bhat
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Dhaval Shukla
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - R Bharath
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - B Indira Devi
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
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Reshetnikov E, Ponomarenko I, Golovchenko O, Sorokina I, Batlutskaya I, Yakunchenko T, Dvornyk V, Polonikov A, Churnosov M. The VNTR polymorphism of the endothelial nitric oxide synthase gene and blood pressure in women at the end of pregnancy. Taiwan J Obstet Gynecol 2019; 58:390-395. [PMID: 31122531 DOI: 10.1016/j.tjog.2018.11.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2018] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Examine the association of the 4a/4b polymorphism of endothelial nitric oxide synthase (eNOS) with blood pressure in women at late pregnancy. MATERIALS AND METHODS Blood pressure before pregnancy and at the end of gestation (37-40-week term) was measured in 588 women of the Russian ancestry. The women were divided into groups according to the body mass index and the presence of preeclampsia at late pregnancy. The 4a/4b polymorphism of the eNOS gene was genotyped using PCR with subsequent screening of amplified fragment length polymorphisms. RESULTS The 4a4a eNOS genotype was associated with higher levels of diastolic blood pressure in pregnant women and with more pronounced dynamics of the diastolic and mean arterial pressure in the development of pregnancy (p = 0.02-0.03). Pregnant women with the 4a4a genotype and increased body mass index had higher systolic, diastolic, and mean arterial pressure (p = 0.001-0.009). In pregnant women with preeclampsia, the 4a4a genotype was associated with higher level of diastolic blood pressure at the end of pregnancy (p = 0.04), whereas in the women without preeclampsia this genotype was associated with more pronounced changes of blood pressure at pregnancy (p = 0.02). CONCLUSION The results of our study suggest that the genotype 4a4a of the eNOS gene is associated with higher levels of blood pressure in women at the end of pregnancy.
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Affiliation(s)
- Evgeny Reshetnikov
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia.
| | - Irina Ponomarenko
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
| | - Oleg Golovchenko
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
| | - Inna Sorokina
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
| | - Irina Batlutskaya
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
| | - Tatyana Yakunchenko
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
| | - Volodymyr Dvornyk
- Department of Life Sciences, College of Science and General Studies, Alfaisal University, Saudi Arabia
| | - Alexey Polonikov
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, Kursk, Russia
| | - Mikhail Churnosov
- Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russia
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Nan J, Liu Y, Xu C, Ge D. Effects of eNOS gene polymorphisms on individual susceptibility to cancer: A meta-analysis. Nitric Oxide 2019; 84:1-6. [PMID: 30582965 DOI: 10.1016/j.niox.2018.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 12/14/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Whether endothelial nitric oxide synthase (eNOS) polymorphisms are implicated in cancer development remains controversial. Therefore, we performed this study to obtain a more conclusive result on associations between eNOS polymorphisms and cancer. METHODS Literature retrieve was conducted in PubMed, Medline and Embase. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. RESULTS Forty-one studies were enrolled for analyses. Pooled overall analyses showed that rs1799983 (dominant model: p = 0.01; recessive model: p = 0.007; allele model: p = 0.005), rs2070744 (recessive model: p = 0.004) and rs869109213 (recessive model: p < 0.0001; allele model: p = 0.02) polymorphisms were all significantly associated with individual susceptibility to cancer. Further subgroup analyses revealed that rs2070744 and rs869109213 polymorphisms were only significantly associated with individual susceptibility to cancer in Caucasians, whereas the rs1799983 polymorphism was significantly associated with individual susceptibility to cancer in both Caucasians and Asians. CONCLUSIONS Our findings indicated that rs1799983, rs2070744 and rs869109213 polymorphisms may serve as genetic biomarkers of cancer in certain ethnicities.
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Affiliation(s)
- Jun Nan
- Department of Gastroenterology, Shangqiu First People's Hospital, Shangqiu, Henan, China
| | - Yaqing Liu
- Department of Gastroenterology, Shangqiu First People's Hospital, Shangqiu, Henan, China
| | - Chunjin Xu
- Department of Gastroenterology, Shangqiu First People's Hospital, Shangqiu, Henan, China
| | - Dahe Ge
- Department of Gastroenterology, Shangqiu First People's Hospital, Shangqiu, Henan, China.
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Hardin AM. Genetic contributions to dental dimensions in brown-mantled tamarins (Saguinus fuscicollis) and rhesus macaques (Macaca mulatta). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 168:292-302. [PMID: 30508220 PMCID: PMC6328332 DOI: 10.1002/ajpa.23744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/11/2018] [Accepted: 10/16/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The use of dental metrics in phylogenetic reconstructions of fossil primates assumes variation in tooth size is highly heritable. Quantitative genetic studies in humans and baboons have estimated high heritabilities for dental traits, providing a preliminary view of the variability of dental trait heritability in nonhuman primate species. To expand upon this view, the heritabilities and evolvabilities of linear dental dimensions are estimated in brown-mantled tamarins (Saguinus fuscicollis) and rhesus macaques (Macaca mulatta). MATERIALS AND METHODS Quantitative genetic analyses were performed on linear dental dimensions collected from 302 brown-mantled tamarins and 364 rhesus macaques. Heritabilities were estimated in SOLAR using pedigrees from each population, and evolvabilities were calculated manually. RESULTS Tamarin heritability estimates range from 0.19 to 0.99, and 25 of 26 tamarin estimates are significantly different from zero. Macaque heritability estimates range from 0.08 to 1.00, and 25 out of 28 estimates are significantly different from zero. DISCUSSION Dental dimensions are highly heritable in captive brown-mantled tamarins and free-ranging rhesus macaques. The range of heritability estimates in these populations is broadly similar to those of baboons and humans. Evolvability tends to increase with heritability, although evolvability is high relative to heritability in some dimensions. Estimating evolvability helps to contextualize differences in heritability, and the observed relationship between evolvability and heritability in dental dimensions requires further investigation.
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Affiliation(s)
- Anna M Hardin
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, Missouri
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Chen JB, Zhang M, Cui Y, Liu PH, Qi YW, Li C, Cheng X, Ren WB, Li QQ, Liu LF, Chen MF, Chen HQ, Zu XB. Association Between 12 Polymorphisms of VEGF/Hypoxia/Angiogenesis Pathway Genes and Risk of Urogenital Carcinomas: A Meta-Analysis Based on Case-Control Studies. Front Physiol 2018; 9:715. [PMID: 29942264 PMCID: PMC6004409 DOI: 10.3389/fphys.2018.00715] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/24/2018] [Indexed: 12/17/2022] Open
Abstract
Objective: Previous studies indicated potential associations between polymorphisms in genes of VEGF/hypoxia/angiogenesis pathway and risk of urogenital carcinomas However, the results were controversial and inconclusive. Here, we conducted an in-depth meta-analysis to investigate the precise associations between polymorphisms in VEGF/hypoxia/angiogenesis related genes and risk of urogenital carcinomas. Methods: We searched PubMed, Web of Science, EMBASE, and Cochrane Library to identify all eligible publications. Pooled odds ratios (ORs) corresponding with the 95% confidence intervals (CIs) were calculated to evaluate their associations. Subgroup analysis was conducted to further ascertain such relationship and investigate sources of heterogeneity. Results: In the end, a total of 96 case-control studies fulfilled the inclusion criteria were enrolled for 12 polymorphisms in 4 VEGF/hypoxia/angiogenesis related genes. The pooled results showed eNOS-rs2070744 polymorphism conferred a significantly increased overall risk of urogenital carcinomas in allele, homozygote, and recessive models, respectively. In addition, eNOS-Intron 4a/b VNTR polymorphism was identified related to an increased risk of urogenital carcinomas in recessive model. And VEGF-rs699947 polymorphism was also identified an increased risk of renal cell carcinoma (RCC) in allelic, heterozygote, dominant, homozygote, and recessive models. Conclusion: To conclude, eNOS-rs2070744 and eNOS-Intron 4a/b VNTR polymorphisms are risk factors for urogenital carcinomas. VEGF-rs699947 polymorphism was also identified as an increased risk factor for renal carcinoma.
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Affiliation(s)
- Jin-Bo Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Meng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yu Cui
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Pei-Hua Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Yan-Wei Qi
- Beijing Genomics Institute, Shenzhen, China
| | - Chao Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Xu Cheng
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Wen-Biao Ren
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Qia-Qia Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Long-Fei Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Min-Feng Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - He-Qun Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiong-Bing Zu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
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Heidar MM, Khatami M. Designing and Validation of One-Step T-ARMS-PCR for Genotyping the eNOS rs1799983 SNP. IRANIAN JOURNAL OF BIOTECHNOLOGY 2018; 15:208-212. [PMID: 29845071 DOI: 10.15171/ijb.1307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 03/30/2017] [Accepted: 09/05/2017] [Indexed: 11/09/2022]
Abstract
Background: The transversion of G to T (G894T) in human endothelial nitric oxide synthase (eNOS) gene has profound effects such as male infertility, recurrent miscarriage, multiple sclerosis and cardiovascular diseases. Objectives: Development of a new Multiplex Tetra-Primer Amplification Refractory Mutation System - Polymerase Chain Reaction (T-ARMS-PCR) for detection of rs1799983 (G894T) in the human eNOS was sought. Materials and Methods: A T-ARMS-PCR for rs1799983 polymorphism in a single-step PCR was carried out, and the results were confirmed by PCR-RFLP technique in 82 infertile men with varicocele. Results: The results showed that GG (varicocele infertile men), GT and TT genotypes appear to be 53.65%, 34.14%, and 12.19%, respectively. Full accordance between PCR-RFLP and T-ARMS-PCR methods for genotyping of rs1799983 polymorphism was found. Conclusions: This is the first work that describes a rapid, relatively cheap, high throughput detection of G894T polymorphism in eNOS that can be used in large scale clinical studies.
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Affiliation(s)
| | - Mehri Khatami
- Department of Biology, Faculty of Science, Yazd University, Yazd, Iran
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Casadei Gardini A, Marisi G, Faloppi L, Scarpi E, Foschi FG, Iavarone M, Lauletta G, Corbelli J, Valgiusti M, Facchetti F, Della Corte C, Neri LM, Tamberi S, Cascinu S, Scartozzi M, Amadori D, Nanni O, Tenti E, Ulivi P, Frassineti GL. eNOS polymorphisms and clinical outcome in advanced HCC patients receiving sorafenib: final results of the ePHAS study. Oncotarget 2018; 7:27988-99. [PMID: 27058899 PMCID: PMC5053704 DOI: 10.18632/oncotarget.8569] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/28/2016] [Indexed: 02/06/2023] Open
Abstract
Sorafenib may reduce endothelial nitric oxide synthase (eNOS) activity by inhibiting vascular endothelial growth factor receptors (VEGF-R), leading to a decrease in nitric oxide production. In the Italian multicenter ePHAS (eNOS polymorphisms in HCC and sorafenib) study, we analyzed the role of eNOS polymorphisms in relation to clinical outcome in patients with hepatocellular carcinoma (HCC) receiving sorafenib. Our retrospective study included a training cohort of 41 HCC patients and a validation cohort of 87 HCC patients, all undergoing sorafenib treatment. Three eNOS polymorphisms (eNOS -786T>C, eNOS VNTR 27bp 4a/b and eNOS+894G>T) were analyzed by direct sequencing or Real Time PCR in relation to progression-free survival (PFS) and overall survival (OS) (log-rank test). In univariate analysis, training cohort patients homozygous for eNOS haplotype (HT1:T-4b at eNOS-786/eNOS VNTR) had a lower median PFS (2.6 vs. 5.8 months, P < 0.0001) and OS (3.2 vs.14.6 months, P = 0.024) than those with other haplotypes. In the validation set, patients homozygous for HT1 had a lower median PFS (2.0 vs. 6.7 months, P < 0.0001) and OS (6.4 vs.18.0 months, P < 0.0001) than those with other haplotypes. Multivariate analysis confirmed this haplotype as the only independent prognostic factor. Our results suggest that haplotype HT1 in the eNOS gene may be capable of identifying a subset of HCC patients who are resistant to sorafenib.
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Affiliation(s)
- Andrea Casadei Gardini
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Giorgia Marisi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Luca Faloppi
- Department of Medical Oncology, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica delle Marche, Ancona, Italy
| | - Emanuela Scarpi
- Unit of Biostatistics and Clinical Trials, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | | | - Massimo Iavarone
- A.M.&A. Migliavacca Center for Liver Disease, 1st Division of Gastroenterology, Fondazione IRCCS Ca' Granda Maggiore Hospital, University of Milan, Milan, Italy
| | - Gianfranco Lauletta
- Department of Biomedical Sciences and Human Oncology, Internal Medicine "G. Baccelli", University of Bari "A. Moro", Bari, Italy
| | - Jody Corbelli
- Department of Medical Oncology, Faenza Hospital, AUSL Romagna, Faenza, Italy
| | - Martina Valgiusti
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Floriana Facchetti
- A.M.&A. Migliavacca Center for Liver Disease, 1st Division of Gastroenterology, Fondazione IRCCS Ca' Granda Maggiore Hospital, University of Milan, Milan, Italy
| | - Cristina Della Corte
- A.M.&A. Migliavacca Center for Liver Disease, 1st Division of Gastroenterology, Fondazione IRCCS Ca' Granda Maggiore Hospital, University of Milan, Milan, Italy
| | - Luca Maria Neri
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Stefano Tamberi
- Department of Medical Oncology, Faenza Hospital, AUSL Romagna, Faenza, Italy
| | - Stefano Cascinu
- Department of Medical Oncology, Azienda Ospedaliero Universitaria Ospedali Riuniti, Università Politecnica delle Marche, Ancona, Italy
| | - Mario Scartozzi
- Department of Medical Oncology, University Hospital Cagliari, Cagliari, Italy
| | - Dino Amadori
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Oriana Nanni
- Unit of Biostatistics and Clinical Trials, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Elena Tenti
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Paola Ulivi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Giovanni Luca Frassineti
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
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Association of NOS3 gene polymorphisms with essential hypertension in Sudanese patients: a case control study. BMC MEDICAL GENETICS 2017; 18:128. [PMID: 29132319 PMCID: PMC5683550 DOI: 10.1186/s12881-017-0491-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/02/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND Essential hypertension (EH) is influenced by various environmental and genetic factors. Nitric oxide is important for the functional integrity of the vascular endothelium and is produced in endothelial cells by the enzyme endothelial nitric oxide synthase (eNOS). EH has a strong genetic component, and the NOS3 gene, which encodes eNOS, represents an interesting candidate for contribution to the phenotype. The most clinically relevant polymorphisms in the NOS3 gene are rs1799983 in exon 7 (encoding Glu298Asp), a variable number tandem repeat (VNTR) in intron 4, and rs2070744 (T-786C) in the promoter region. This study aims to investigate the association between these three polymorphisms in the NOS3 gene and EH in Sudanese patients. METHODS Hypertensive patients (n = 157) > 18 years of age with established hypertension from various hospitals in Khartoum, and controls (n = 85) > 18 years of age and with blood pressure measurements <140/90, were included in this case control study. Genotypes at the NOS3 variants were determined using TaqMan and polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analyses. Genotype and allele frequencies were compared between the two groups by χ2 analysis, and differences were expressed as odds ratios with 95% confidence intervals (CIs). P values <0.05 were considered statistically significant. RESULTS The rs2070744 polymorphism in NOS3 was found to be associated with EH in the Sudanese population as the patients group had higher frequency of CC genotype compared with the controls (6.6% vs 6.1%, p = 0.02). Considering a dominant inheritance model, the frequency of TC + CC genotypes in patients was significantly higher than that in the control subjects (52.6% vs 34.1%, respectively; p < 0.01), with an odds ratio (95% CI) of 2.14 (1.23-3.74). In addition, the C allele was more frequent in the patients than the control group (29.6% vs 20%, p = 0.03, OR = 1.84 (1.15-2.93)). The c allele of intron 4 VNTR was reported in >1% of the Sudanese population under study. CONCLUSION The results of this study indicated that the rs2070744 polymorphism in NOS3 may be a genetic susceptibility factor for EH in the Sudanese population. The c allele of intron 4 VNTR is not rare in the Sudanese population.
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Sezgin N, Tekin A, Atac FB, Verdi H, Sezgin AT. Endothelial nitric oxide synthase gene polymorphisms in patients with slow coronary flow. Interv Med Appl Sci 2017; 9:117-122. [PMID: 29201435 PMCID: PMC5700696 DOI: 10.1556/1646.9.2017.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background and aims The aim of this study was to explore potential associations of the intron 4 variable number of tandem repeats (VNTR) and E298A polymorphisms of the endothelial nitric oxide synthase (eNOS) gene with slow coronary flow (SCF). The association between plasma nitrate and nitrite (NO x ) concentrations and eNOS gene polymorphisms was also assessed. Materials and methods The intron 4 VNTR and E298A polymorphisms of the eNOS gene were evaluated in the isolated DNA blood samples obtained from the SCF patient group (n = 30) and healthy group consisted of age- and sex-matched controls (n = 61). Results Plasma NO x level was significantly lower in patients with SCF than in controls. In addition, patients with SCF have significantly lower nitric oxide levels than control subjects within each genotype variants. The allele and genotyped frequencies of the eNOS intron 4 VNTR and E298A polymorphisms were similar between patients with SCF and the controls. Plasma NO x concentrations with respect to the relevant genotypes were found insignificant. Discussion and conclusion Plasma NO x is lower in patients with SCF than in healthy subjects. Our findings may suggest the lack of association between intron 4 VNTR and E298A polymorphisms of the eNOS gene and SCF.
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Affiliation(s)
- Nurzen Sezgin
- Department of Biochemistry, Acıbadem University School of Medicine, İstanbul, Turkey
| | - Abdullah Tekin
- Department of Cardiology, Başkent University School of Medicine, Ankara, Turkey
| | - Fatma Belgin Atac
- Department of Medical Biology and Genetics, Başkent University School of Medicine, Ankara, Turkey
| | - Hasibe Verdi
- Department of Medical Biology and Genetics, Başkent University School of Medicine, Ankara, Turkey
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Heidari MM, Khatami M, Tahamtan Y. Molecular Analysis of rs2070744 and rs1799983 Polymorphisms of NOS3 Gene in Iranian Patients With Multiple Sclerosis. Basic Clin Neurosci 2017; 8:279-284. [PMID: 29158878 PMCID: PMC5683685 DOI: 10.18869/nirp.bcn.8.4.279] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction Multiple Sclerosis (MS) is a disease of central nervous system that mainly causes lesions or plaques in the spinal cord and brain. The purpose of this study was to analyze the relation between c.-813C>T (rs2070744) and c.894G>T (rs1799983) polymorphisms of NOS3 gene and MS in Iranian patients. Methods A total of 78 patients with MS and 80 healthy controls were screened for NOS3 (rs2070744 and rs1799983) Single Nucleotide Polymorphisms (SNPs) by tetra-primer multiplex ARMS-PCR and PCR-RFLP. Results Genotype frequencies of the c.-813C>T polymorphism in patients compared to controls were as follows: 53.8% to 80.0% for TT genotype, 41.0% to 18.8% for TC genotype, and 5.1% versus 1.2% for CC genotype (P=0.001). The frequencies of GG genotype was 57.7% and 78.8% and for GT genotype of c.894G>T polymorphism in patients compared to control subjects was 42.3% and 21.2%, respectively (P=0.004). Conclusion Our results indicate that the studied NOS3 polymorphisms may be associated with MS in Iranian patients.
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Affiliation(s)
| | - Mehri Khatami
- Department of Biology, Faculty of Science, Yazd University, Yazd, Iran
| | - Yaser Tahamtan
- Department of Biology, Ashkezar Branch, Islamic Azad University, Yazd, Iran
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Say YH. The association of insertions/deletions (INDELs) and variable number tandem repeats (VNTRs) with obesity and its related traits and complications. J Physiol Anthropol 2017; 36:25. [PMID: 28615046 PMCID: PMC5471687 DOI: 10.1186/s40101-017-0142-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 06/01/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Despite the fact that insertions/deletions (INDELs) are the second most common type of genetic variations and variable number tandem repeats (VNTRs) represent a large portion of the human genome, they have received far less attention than single nucleotide polymorphisms (SNPs) and larger forms of structural variation like copy number variations (CNVs), especially in genome-wide association studies (GWAS) of complex diseases like polygenic obesity. This is exemplified by the vast amount of review papers on the role of SNPs and CNVs in obesity, its related traits (like anthropometric measurements, biochemical variables, and eating behavior), and its related complications (like hypertension, hypertriglyceridemia, hypercholesterolemia, and insulin resistance-collectively known as metabolic syndrome). Hence, this paper reviews the types of INDELs and VNTRs that have been studied for association with obesity and its related traits and complications. These INDELs and VNTRs could be found in the obesity loci or genes from the earliest GWAS and candidate gene association studies, like FTO, genes in the leptin-proopiomelanocortin pathway, and UCP2/3. Given the important role of the brain serotonergic and dopaminergic reward system in obesity susceptibility, the association of INDELs and VNTRs in these neurotransmitters' metabolism and transport genes with obesity is also reviewed. Next, the role of INS VNTR in obesity and its related traits is questionable, since recent large-scale studies failed to replicate the earlier positive associations. As obesity results in chronic low-grade inflammation of the adipose tissue, the proinflammatory cytokine gene IL1RA and anti-inflammatory cytokine gene IL4 have VNTRs that are implicated in obesity. A systemic proinflammatory state in combination with activation of the renin-angiotensin system and decreased nitric oxide bioavailability as found in obesity leads to endothelial dysfunction. This explains why VNTR and INDEL in eNOS and ACE, respectively, could be predisposing factors of obesity. Finally, two novel genes, DOCK5 and PER3, which are involved in the regulation of the Akt/MAPK pathway and circadian rhythm, respectively, have VNTRs and INDEL that might be associated with obesity. SHORT CONCLUSION In conclusion, INDELs and VNTRs could have important functional consequences in the pathophysiology of obesity, and research on them should be continued to facilitate obesity prediction, prevention, and treatment.
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Affiliation(s)
- Yee-How Say
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia.
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Ben Nasr H, Bchir S, Ben Anes A, Amri A, Sakhana Y, Benzarti M, Garrouch A, Tabka Z, Chahed K. The -786 T/C polymorphism of NOS3 gene is a susceptibility marker of COPD among Tunisians that correlates with nitric oxide levels and airflow obstruction. Cytokine 2017; 93:66-73. [PMID: 28526204 DOI: 10.1016/j.cyto.2017.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 05/02/2017] [Accepted: 05/10/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The goal of this study was to examine the role of G894T (rs1799983), -786T/C (rs3918161) and a 27 bp variable number of tandem repeats (VNTR) 4B/4A of NOS3 gene on the risk and severity of COPD. METHODS The study included 194 controls and 138 COPD patients. NOS3 G894T, -786T/C and 4B/4A variants were determined by PCR analysis based on the banding pattern on gel electrophoresis. Pulmonary function was evaluated using body plethysmography. The levels of nitric oxide, peroxynitrite and lipid peroxides (T-BARS) were determined using spectrophotometric methods. Levels of serum IL-6, TNF-α and TGFβ were determined by ELISA. RESULTS In case-control studies, both G894T and -786T/C variants were associated with COPD risk. A significantly increased risk of COPD was found with the NOS3894T and -786C alleles (OR:1.93, P=0.001; OR:2.05, P=0.001, respectively). No significant impact of the G894T and 4B/4A SNPs was found on COPD severity, while a significant correlation was retrieved between the NOS3 -786T/C variation and advanced stages (OR: 1.89, P=0.009). In addition, COPD patients with the -786CC genotype exhibited lower FEV1% values in comparison to -786TT carriers (48±3.28 vs. 58.06±2.3, P=0.01, respectively). Patients having the -786CC genotype presented lower plasma levels of nitric oxide and higher T-BARS in comparison to -786TT individuals (173.22±13.4 vs. 228.93±16.8, P=0.01; 1.8±0.15 vs. 1.22±0.15, P=0.01, respectively). CONCLUSION This study provides the first evidence for the association of G894T, -786T/C variants with COPD risk among Tunisians. The -786T/C variation correlates with enhanced airflow limitation. This finding could be related to altered levels of nitric oxide and enhanced lipid peroxides among patients carrying the -786CC genotype.
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Affiliation(s)
- Hela Ben Nasr
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia; Institut des Sciences Infirmières de Sousse, Tunisia
| | - Sarra Bchir
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Amel Ben Anes
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Asma Amri
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Yosra Sakhana
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Mohamed Benzarti
- Service de Pneumo-Allergologie, CHU Farhat Hached, Sousse, Tunisia
| | | | - Zouhair Tabka
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Karim Chahed
- Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire "Biologie, Medecine et Santé, Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia; Département de Biologie, Faculté des Sciences de Sfax, Tunisia.
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Rai H, Sinha N. Genetic Determinants and Biochemical Correlates of Slow Coronary Flow: A Systematic Review and Meta-analysis. EXPLORATORY RESEARCH AND HYPOTHESIS IN MEDICINE 2017; 2:1-2. [DOI: 10.14218/erhm.2016.00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Association between methylenetetrahydrofolate reductase (MTHFR) C677T gene polymorphism and risk of ischemic stroke in North Indian population: A hospital based case–control study. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2016. [DOI: 10.1016/j.ejmhg.2016.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Association of eNOS Gene Polymorphisms G894T and T-786C with Risk of Hepatorenal Syndrome. Gastroenterol Res Pract 2016; 2016:2579626. [PMID: 27594880 PMCID: PMC4995323 DOI: 10.1155/2016/2579626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/10/2016] [Indexed: 01/13/2023] Open
Abstract
Background. There are no studies investigating the relationship between endothelial nitric oxide synthase (eNOS) gene polymorphisms and hepatorenal syndrome (HRS). Aim. The purpose of this study is to elucidate whether eNOS gene polymorphisms (G894T and T-786C) play a role in the development of type-2 HRS. Methods. This study was carried out in a group of 92 patients with cirrhosis (44 patients with type-2 HRS and 48 without HRS) and 50 healthy controls. Polymorphisms were determined by polymerase chain reaction (PCR) and melting curve analysis. Results. We did not find any significant difference in allele and genotype distributions of the eNOS -T-786C polymorphism among the groups (p = 0.440). However, the frequency of GT (40.9%) and TT (13.6%) genotypes and mutant allele T (34.1%) for the eNOS G894T polymorphism were significantly higher (p < 0.001 and p < 0.001, resp.) in the HRS group than in both the stable cirrhosis (14.6%, 4.2%, and 11.5%, resp.) and the control (22.0%, 2.0%, and 13.0%, resp.) groups. Conclusion. The occurrence of mutant genotypes (GT/TT) and mutant allele T in eNOS -G894T polymorphisms should be considered as a potential risk factor in cirrhotic patients with HRS.
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Peddireddy V, Badabagni SP, Gundimeda SD, Mundluru HP. Association of eNOS
and ACE
gene polymorphisms and plasma nitric oxide with risk of non-small cell lung cancer in South India. CLINICAL RESPIRATORY JOURNAL 2016; 12:207-217. [DOI: 10.1111/crj.12517] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 06/14/2016] [Accepted: 06/17/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Vidyullatha Peddireddy
- Department of Environmental Toxicology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University; Hyderabad India
- Present address: Department of Biotechnology; University of Hyderabad; Hyderabad Andhra Pradesh 500046 India
| | - Siva Prasad Badabagni
- Department of Environmental Toxicology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University; Hyderabad India
| | - Sandhya Devi Gundimeda
- Department of Biotechnology, School of Life Sciences, University of Hyderabad, Indo-American Cancer Hospital; Hyderabad India
| | - Hema Prasad Mundluru
- Department of Environmental Toxicology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University; Hyderabad India
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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.
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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
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Krausz C, Escamilla AR, Chianese C. Genetics of male infertility: from research to clinic. Reproduction 2016; 150:R159-74. [PMID: 26447148 DOI: 10.1530/rep-15-0261] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Male infertility is a multifactorial complex disease with highly heterogeneous phenotypic representation and in at least 15% of cases, this condition is related to known genetic disorders, including both chromosomal and single-gene alterations. In about 40% of primary testicular failure, the etiology remains unknown and a portion of them is likely to be caused by not yet identified genetic anomalies. During the last 10 years, the search for 'hidden' genetic factors was largely unsuccessful in identifying recurrent genetic factors with potential clinical application. The armamentarium of diagnostic tests has been implemented only by the screening for Y chromosome-linked gr/gr deletion in those populations for which consistent data with risk estimate are available. On the other hand, it is clearly demonstrated by both single nucleotide polymorphisms and comparative genomic hybridization arrays, that there is a rare variant burden (especially relevant concerning deletions) in men with impaired spermatogenesis. In the era of next generation sequencing (NGS), we expect to expand our diagnostic skills, since mutations in several hundred genes can potentially lead to infertility and each of them is likely responsible for only a small fraction of cases. In this regard, system biology, which allows revealing possible gene interactions and common biological pathways, will provide an informative tool for NGS data interpretation. Although these novel approaches will certainly help in discovering 'hidden' genetic factors, a more comprehensive picture of the etiopathogenesis of idiopathic male infertility will only be achieved by a parallel investigation of the complex world of gene environmental interaction and epigenetics.
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Affiliation(s)
- Csilla Krausz
- Department of Experimental and Clinical Biomedical SciencesCentre of Excellence DeNothe, University of Florence, Viale Gaetano Pieraccini, 6, 50139, Florence, Italy and Andrology ServiceFundació Puigvert, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Catalonia, Spain Department of Experimental and Clinical Biomedical SciencesCentre of Excellence DeNothe, University of Florence, Viale Gaetano Pieraccini, 6, 50139, Florence, Italy and Andrology ServiceFundació Puigvert, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Catalonia, Spain
| | - Antoni Riera Escamilla
- Department of Experimental and Clinical Biomedical SciencesCentre of Excellence DeNothe, University of Florence, Viale Gaetano Pieraccini, 6, 50139, Florence, Italy and Andrology ServiceFundació Puigvert, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Catalonia, Spain
| | - Chiara Chianese
- Department of Experimental and Clinical Biomedical SciencesCentre of Excellence DeNothe, University of Florence, Viale Gaetano Pieraccini, 6, 50139, Florence, Italy and Andrology ServiceFundació Puigvert, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Catalonia, Spain Department of Experimental and Clinical Biomedical SciencesCentre of Excellence DeNothe, University of Florence, Viale Gaetano Pieraccini, 6, 50139, Florence, Italy and Andrology ServiceFundació Puigvert, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Catalonia, Spain
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Haque S, Mandal RK, Akhter N, Panda AK, Hussain A, Khan S, Lohani M. G894T and 4a/b polymorphisms of NOS3 gene are not associated with cancer risk: a meta-analysis. Asian Pac J Cancer Prev 2015; 16:2929-37. [PMID: 25854385 DOI: 10.7314/apjcp.2015.16.7.2929] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Endothelial nitric oxide synthase (eNOS or NOS3) produces nitric oxide and genetic polymorphisms of NOS3 gene play significant roles in various processes of carcinogenesis. The results from published studies on the association between NOS3 G894T and NOS3 intron 4 (4a/b) polymorphisms and cancer risk are conflicting and inconclusive. However, i n order to assess this relationship more precisely, a meta-analysis was performed with PubMed (Medline), EMBASE and Google web searches until February 2014 to select all published case- control and cohort studies. Genotype distribution data were collected to calculate the pooled odd ratios (ORs) and 95% confidence intervals (CIs) to evaluate the strength of association. A total of 10,546 cancer cases and 10,550 controls were included from twenty four case-control studies for the NOS3 G894T polymorphism. The results indicated no significant association with cancer risk as observed in allelic (T vs G: OR=1.024, 95%CI=0.954 to 1.099, p=0.508), homozygous (TT vs GG: OR=1.137, 95%CI=0.944 to 1.370, p=0.176), heterozygous (GT vs GG: OR=0.993, 95%CI=0.932 to 1.059, p=0.835), recessive (TT vs GG+GT: OR=1.100, 95%CI=0.936 to 1.293, p=0.249) and dominant (TT+GT vs GG: OR=1.012, 95%CI=0.927 to 1.105, p=0.789) genetic models. Similarly, a total of 3,449 cancer cases and 3,691 controls were recruited from fourteen case-control studies for NOS3 4a/b polymorphism. Pooled results indicated no significant association under allelic (A vs B: OR=0.981, 95%CI=0.725 to 1.329, p=0.902), homozygous (AA vs BB: OR=1.166, 95%CI=0.524 to 2.593, p=0.707), heterozygous (BA vs BB: OR=1.129, 95%CI=0.896 to 1.422, p=0.305), dominant (AA+BA vs BB: OR=1.046, 95%CI=0.779 to 1.405, p=0.763) and recessive (AA vs BB+BA: OR=1.196, 95%CI=0.587 to 2.439, p=0.622) genetic contrast models. This meta-analysis suggests that G894T and 4a/b polymorphisms of NOS3 gene are not associated with increased or decreased risk of overall cancer.
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Affiliation(s)
- Shafiul Haque
- Department of Biosciences, Jamia Millia Islamia (A Central University), New Delhi, India E-mail :
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Baransel Isir A, Nacak M, Balci SO, Aynacioglu AS, Pehlivan S. Genetic contributing factors to substance abuse: an association study between eNOS gene polymorphisms and cannabis addiction in a Turkish population. AUST J FORENSIC SCI 2015. [DOI: 10.1080/00450618.2015.1112428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bunjevacki V, Maksimovic N, Jekic B, Milic V, Lukovic L, Novakovic I, Damjanov N, Radunovic G, Damnjanovic T. Polymorphisms of the eNOS gene are associated with disease activity in rheumatoid arthritis. Rheumatol Int 2015; 36:597-602. [PMID: 26612436 DOI: 10.1007/s00296-015-3401-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/17/2015] [Indexed: 01/11/2023]
Abstract
Nitric oxide (NO) is a mediator in autoimmune responses and thus involved in the pathogenesis of a variety of rheumatic diseases. Genetic factors that influence the expression of the enzyme endothelial nitric oxide synthase (eNOS) that catalyzes NO synthesis are important for the control of NO level and consequently its activity. We have analyzed three functionally relevant polymorphisms of eNOS gene: T-786C, G894T and VNTR (4a/b), to investigate whether they are predisposing factors in pathogenesis of RA in Serbian population and to evaluate their role in clinical manifestations of RA. We performed genotyping of 196 patients with RA and the control group of 132 healthy individuals from Serbian population, using PCR and polymerase chain reaction-restriction fragment length polymorphism methods. Disease activity was prospectively assessed using number of tender joints, number of swollen joints and 28-joints disease activity score (DAS28). There were no differences between the patients and control groups in the genotypes and alleles frequencies of the three analyzed SNPs. Our results showed statistically significant differences in all three analyzed parameters of disease severity between 786TT/786CT and 786CC genotypes and between 894GG/894GT and 894TT genotypes. In the case of 4a/b polymorphism, carriers of minor allele had significantly lower DAS28 values. In conclusion, our results do not support the implication of analyzed eNOS gene polymorphisms in susceptibility to RA but associate them with the disease activity and give assumption that minor alleles are indicators of better clinical course.
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Affiliation(s)
- Vera Bunjevacki
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia
| | - Nela Maksimovic
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia
| | - Biljana Jekic
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia
| | - Vera Milic
- Faculty of Medicine, Institute of Rheumatology, University of Belgrade, Resavska 69 Str., Belgrade, Serbia
| | - Ljiljana Lukovic
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia
| | - Ivana Novakovic
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia
| | - Nemanja Damjanov
- Faculty of Medicine, Institute of Rheumatology, University of Belgrade, Resavska 69 Str., Belgrade, Serbia
| | - Goran Radunovic
- Faculty of Medicine, Institute of Rheumatology, University of Belgrade, Resavska 69 Str., Belgrade, Serbia
| | - Tatjana Damnjanovic
- Faculty of Medicine, Institute of Human Genetics, University of Belgrade, 26 Visegradska Str., Belgrade, 11000, Serbia.
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The Relation between eNOS -786 C/T, 4 a/b, MMP-13 rs640198 G/T, Eotaxin 426 C/T, -384 A/G, and 67 G/A Polymorphisms and Long-Term Outcome in Patients with Coronary Artery Disease. DISEASE MARKERS 2015; 2015:232048. [PMID: 26491210 PMCID: PMC4605266 DOI: 10.1155/2015/232048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/03/2015] [Accepted: 09/13/2015] [Indexed: 12/20/2022]
Abstract
Aim. The purpose of this study is to determine the association between eotaxin 426 C/T, −384 A/G, 67 G/A, eNOS −786 T/C, 4 a/b, and MMP-13 rs640198 G/T and prognosis of patients with known CAD. Methods. From total of 1161 patients referred to coronary angiography, 532 patients with angiographically confirmed CAD were selected. Their long-term outcome was followed up using hospital database. Subsequent events were assessed in this study: death or combined endpoint-myocardial infarction, unstable angina pectoris, revascularization, heart failure hospitalization, and cardioverter-defibrillator implantation. Results. The multivariate Cox regression model identified age, smoking, and 3-vessel disease as significant predictors of all-cause death. Further analysis showed that eotaxin 67 G/A (GA + AA versus GG) and eotaxin −384 A/G (GG versus GA + AA) were significant independent prognostic factors when added into the model: HR (95% CI) 2.81 (1.35–5.85), p = 0.006; HR (95% CI) 2.63 (1.19–5.83), p = 0.017; eotaxin −384 A/G was significantly associated with the event-free survival, but it did not provide the prognostic information above the effect of two- or three-vessel disease. Conclusion. The A allele in eotaxin 67 G/A polymorphism is associated with worse survival in CAD patients.
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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.
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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
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Singh R, Ghoshal UC, Misra A, Mittal B. Achalasia Is Associated With eNOS4a4a, iNOS22GA, and nNOS29TT Genotypes: A Case-control Study. J Neurogastroenterol Motil 2015; 21:380-9. [PMID: 26088023 PMCID: PMC4496906 DOI: 10.5056/jnm14123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 01/25/2015] [Accepted: 01/25/2015] [Indexed: 12/16/2022] Open
Abstract
Background/Aims Achalasia is known to result from degeneration of inhibitory neurons, which are mostly nitrinergic. Characteristic features of achalasia include incomplete lower esophageal sphincter (LES) relaxation and esophageal aperistalsis. Nitric oxide (NO), produced by NO synthase (NOS), plays an important role in peristalsis and LES relaxation. Therefore, we evaluated genetic polymorphisms of NOS gene isoforms (endothelial NOS [eNOS], inducible NOS [iNOS], and neuronal NOS [nNOS]) in patients with achalasia and healthy subjects (HS). Methods Consecutive patients with achalasia (diagnosed using esophageal manometry) and HS were genotyped for 27-base pair (bp) eNOS variable number of tandem repeats (VNTR), iNOS22G/A (rs1060826), nNOS C/T (rs2682826) polymorphisms by polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism (RFLP), respectively. Results Among 183 patients (118 [64.5%] male, age 39.5 ± 13.0 years) with achalasia and 366 HS (254 [69.4%] male, age 40.8 ± 11.0 years), eNOS4a4a genotype of 27-bp VNTR was more common among achalasia than HS (20 [10.9%] vs 13 [3.6%]; P < 0.001; OR, 3.72; 95% CI, 1.8–7.7). Patients with achalasia had iNOS22GA genotypes more often than HS (95 [51.9%] vs 93 [25.4%]; P < 0.001; OR, 3.0; 95% CI, 2.1–4.4). Frequency of genotypes GA + AA was higher in patients than HS (97 [53%] vs 107 [29.2%]; P < 0.001; OR, 2.7; 95% CI, 1.8–3.9). Also, nNOS29TT variant genotype in rs2682826 was more common among patients compared to HS (14 [7.7%] vs 6 [1.6%]; P < 0.001; OR, 5.91; 95% CI, 2.2–15.8). Conclusions Achalasia is associated with eNOS4a4a, iNOS22GA, and nNOS29TT genotypes. This may suggest that polymorphisms of eNOS, iNOS, and nNOS genes are risk factors for achalasia.
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Affiliation(s)
- Rajan Singh
- Departments of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Uday C Ghoshal
- Departments of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Asha Misra
- Departments of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Balraj Mittal
- Departments of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Nasr HB, Dimassi S, M'hadhbi R, Debbabi H, Kortas M, Tabka Z, Chahed K. Functional G894T (rs1799983) polymorphism and intron-4 VNTR variant of nitric oxide synthase (NOS3) gene are susceptibility biomarkers of obesity among Tunisians. Obes Res Clin Pract 2015; 10:465-75. [PMID: 25956856 DOI: 10.1016/j.orcp.2015.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 04/23/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The endothelial nitric oxide synthase (NOS3) has been shown to play a role in the modulation of lipolysis. The goal of this study was to examine the impact of the G894T (rs1799983) and a 27 bp variable number of tandem repeats (VNTR 4a/b) of NOS3 gene on obesity in a sample of the Tunisian population. RESEARCH METHODS AND PROCEDURES The study included 211 normal weight subjects and 183 obese patients. NOS3 G894T and 4a/b variants were determined by PCR analysis and examined for association with obesity-related traits. The effect of obesity on forearm skin blood flow (FSBF) response to acetylcholine, an endothelium-dependent vasodilator was determined by laser Doppler iontophoresis. RESULTS In case-control studies, both G894T and 4a/b variants were associated with obesity. A significantly increased risk of obesity was found with the NOS3(G894T) TT genotype (OR:2.62, P=0.04). This association remains significant after adjustments for age and gender (OR: 2.93, P=0.03). A higher risk was also observed for carriers of the G894T allele (OR: 1.72, P=0.001). Stratified analysis by gender revealed that obese men (but not women) had significantly higher frequency of TT genotypes compared to controls (9.9% vs. 2.9%, P=0.01). Carriers of the 4b allele presented a significantly higher risk of obesity than non-carriers even after adjustments for age and gender (OR (95%CI): 1.72 (1.16-2.56), P=0.004). Correlations with anthropometric parameters revealed that carriers of TT and bb genotypes had significantly higher body mass index compared to those homozygous for the G and a alleles (P=0.0004). CONCLUSION This study provides the first evidence for the association of G894T and 4a/b variants with body mass index and the risk of obesity in Tunisians. These polymorphisms did not exhibit, however any significant association with both metabolic traits and vascular function.
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Affiliation(s)
- Hela Ben Nasr
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Saloua Dimassi
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Refka M'hadhbi
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Haithem Debbabi
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Mondher Kortas
- Laboratoire d'Hématologie, CHU Farhat Hached, Sousse, Tunisia
| | - Zouhair Tabka
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia
| | - Karim Chahed
- Unité de Recherche UR12ESO6, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire «Biologie, Medecine et Santé», Faculté de Medecine Ibn el Jazzar, Sousse, Tunisia; Département de Biologie, Faculté des Sciences de Sfax, Tunisia.
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Wu X, Wang ZF, Xu Y, Ren R, Heng BL, Su ZX. Association between three eNOS polymorphisms and cancer risk: a meta-analysis. Asian Pac J Cancer Prev 2015; 15:5317-24. [PMID: 25040995 DOI: 10.7314/apjcp.2014.15.13.5317] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Polymorphisms in the endothelial nitric oxide synthase (eNOS) gene may influence the risk of cancer, but the results are still debatable. Therefore, we performed a systematic review to provide a more complete picture and conducted a meta-analysis to derive a precise estimation. We searched PubMed, EMBASE, EBSCO, Google Scholar and China National Knowledge Infrastructure (CNKI) databases until April 2014 to identify eligible studies. Thirty-one studies with cancer patients and controls were included in the meta-analysis. Overall, the polled analysis revealed that the T-786C polymorphism was significantly associated with increased cancer risk under multiple genetic models (C vs T: OR=1.135, 95%CI=1.048-1.228; CC vs TT: OR=1.278, 95%CI=1.045- 1.562; TC vs TT: OR=1.136, 95%CI=1.023-1.261; CC+TC vs TT: OR=1.159, 95%CI=1.047-1.281; CC vs TC+TT: OR=1.204, 95%CI= 1.003-1.447). G894T was associated with significant risk for females (TT vs GG: OR=1.414, 95%CI=1.056-1.892; TT vs GT+GG: OR=1.356, 95%CI=1.108-1.661) and for breast cancer (T vs G: OR=1.097, 95%CI=1.001-1.203; TT vs GG: OR=1.346, 95%CI=1.012-1.789; TT vs GT+GG: OR=1.269, 95%CI=1.028-1.566). Increased susceptibility was revealed for prostate cancer with 4a/b (ba vs bb: OR=1.338, 95%CI=1.013-1.768; aa+ba vs bb: OR=1.474, 95%CI=1.002-2.170). This meta-analysis indicated that the eNOS T-786C polymorphism is associated with elevated cancer risk; the G894T polymorphism contributes to susceptibility to breast cancer and cancer generally in females; and the 4a/b polymorphism may be associated with prostate cancer risk.
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Affiliation(s)
- Xun Wu
- Department of Anatomy, School of Basic Medicine Science, Southern Medical University, Guangzhou, ChinaE-mail :
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Tantawy AAG, Adly AAM, Ismail EAR, Aly SH. Endothelial nitric oxide synthase gene intron 4 VNTR polymorphism in sickle cell disease: relation to vasculopathy and disease severity. Pediatr Blood Cancer 2015; 62:389-94. [PMID: 25263931 DOI: 10.1002/pbc.25234] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 07/28/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND Impaired NO bioavailability represents the central feature of endothelial dysfunction, and is a common denominator in the pathogenesis of vasculopathy in sickle cell disease (SCD). Evidence indicates the contribution of 4a allele of endothelial NO synthase (eNOS) gene to cardiac and renal diseases. We studied the 27-base pair tandem repeat polymorphism in intron 4 of eNOS gene in 51 patients with SCD compared with 55 healthy controls and evaluated its role in disease severity and hemolysis-associated complications. PROCEDURE Transfusion history, vaso-occlusive crisis, thrombotic events, urinary albumin excretion, and echocardiography were assessed. Analysis of eNOS intron 4 gene polymorphism was performed by polymerase chain reaction. RESULTS The distribution of eNOS alleles and genotypes was similar between patients with SCD and controls. Compared with bb genotype, the frequency of eNOS4a allele (aa and ab genotypes) was significantly higher in patients with elevated tricuspid regurgitant velocity (TRV) (P = 0.009), nephropathy (P = 0.006), or history of cerebral stroke (P = 0.029). Logistic regression analysis revealed that eNOS4a allele was an independent risk factor for elevated TRV (P < 0.001). Patients with SCD and eNOS4a allele had higher lactate dehydrogenase, serum ferritin, D-Dimer, and von Willebrand factor antigen (P < 0.05). CONCLUSIONS We suggest that eNOS intron 4 gene polymorphism is related to endothelial dysfunction and vasculopathy in SCD and could provide utility for prediction of increased susceptibility to vascular complications.
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Endothelial nitric oxide synthase gene intron 4 variable number tandem repeat polymorphism in β-thalassemia major: relation to cardiovascular complications. Blood Coagul Fibrinolysis 2015; 26:419-25. [PMID: 25699607 DOI: 10.1097/mbc.0000000000000277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Endothelial nitric oxide synthase (eNOS), an enzyme that generates nitric oxide, is a major determinant of endothelial function. Several eNOS gene polymorphisms have been reported as 'susceptibility genes' in various human diseases states, including cardiovascular, pulmonary and renal diseases. We studied the 27-base pair tandem repeat polymorphism in intron 4 of eNOS gene in 60 β-thalassemia major (β-TM) patients compared with 60 healthy controls and assessed its role in subclinical atherosclerosis and vascular complications. Patients were evaluated stressing on transfusion history, splenectomy, thrombotic events, echocardiography and carotid intima-media thickness (CIMT). Analysis of eNOS intron 4 gene polymorphism was performed by PCR. No significant difference was found between β-TM patients and controls with regard to the distribution of eNOS4 alleles or genotypes. The frequency of eNOS4a allele (aa and ab genotypes) was significantly higher in β-TM patients with pulmonary hypertension or cardiomyopathy. Logistic regression analysis revealed that eNOS4a allele was an independent risk factor for pulmonary hypertension in β-TM patients [odds ratio (OR) 2.2, 95% confidence interval (95% CI) 1.19-5.6; P < 0.001]. We suggest that eNOS intron 4 gene polymorphism is related to endothelial dysfunction and subclinical atherosclerosis and could be a possible genetic marker for prediction of increased susceptibility to cardiovascular complications.
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A NOS3 polymorphism determines endothelial response to folate in children with type 1 diabetes or obesity. J Pediatr 2015; 166:319-25.e1. [PMID: 25477161 DOI: 10.1016/j.jpeds.2014.10.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/05/2014] [Accepted: 10/21/2014] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine the effect of polymorphisms in NOS3 and folate pathway enzymes on vascular function and folate status and endothelial response to folate in children with diabetes or obesity. STUDY DESIGN A total of 244 subjects (age 13.8 ± 2.8 years, 125 males) were studied for NOS3 and/or folate pathway polymorphisms using polymerase chain reaction/restriction fragment length polymorphism, including at baseline: 139 with type 1 diabetes; 58 with obesity; and 47 controls. The effect of NOS3 genotype on endothelial response to folate (5 mg) was assessed in 85 subjects with diabetes and 28 obese subjects who received active treatment during intervention trials. Vascular function (flow-mediated dilatation [FMD] and glyceryl trinitrate-mediated dilatation), clinical, and biochemical measurements were assessed at baseline and 8 weeks in folate intervention studies. RESULTS Folate pathway enzyme and NOS3 polymorphisms did not significantly affect baseline vascular function. The polymorphism in intron 4 of endothelial nitric oxide synthase altered endothelial response to folate significantly: in subjects with diabetes FMD improved by 6.4 ± 5% (insertion carriers) vs 2.3 ± 6.6% (deletion carriers), P = .01; in obese subjects FMD improved by 1.8 ± 5.4% (insertion carriers) and deteriorated by -3.2 ± 7.2% (deletion carriers), P = .05. More subjects carrying the insertion normalized FMD after folate supplementation (insertion 64% vs deletion 28%, χ(2) = 10.14, P = .001). CONCLUSIONS A NOS3 polymorphism predicts endothelial response to folate in children with diabetes or obesity, with implications for vascular risk and folate intervention studies.
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Munshi A, Das S, Kaul S. Genetic determinants in ischaemic stroke subtypes: Seven year findings and a review. Gene 2015; 555:250-9. [DOI: 10.1016/j.gene.2014.11.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 11/06/2014] [Accepted: 11/09/2014] [Indexed: 02/06/2023]
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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.
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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
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Rai H, Parveen F, Kumar S, Kapoor A, Sinha N. Association of endothelial nitric oxide synthase gene polymorphisms with coronary artery disease: an updated meta-analysis and systematic review. PLoS One 2014; 9:e113363. [PMID: 25409023 PMCID: PMC4237457 DOI: 10.1371/journal.pone.0113363] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 10/22/2014] [Indexed: 01/10/2023] Open
Abstract
Several association studies of endothelial nitric oxide synthase (NOS3) gene polymorphisms with respect to coronary artery disease (CAD) have been published in the past two decades. However, their association with the disease, especially among different ethnic subgroups, still remains controversial. This prompted us to conduct a systematic review and an updated structured meta-analysis, which is the largest so far (89 articles, 132 separate studies, and a sample size of 69,235), examining association of three polymorphic forms of the NOS3 gene (i.e. Glu298Asp, T786-C and 27bp VNTR b/a) with CAD. In a subgroup analysis, we tested their association separately among published studies originating predominantly from European, Middle Eastern, Asian, Asian-Indian and African ancestries. The pooled analysis confirmed the association of all the three selected SNP with CAD in three different genetic models transcending all ancestries worldwide. The Glu298Asp polymorphism showed strongest association (OR range = 1.28–1.52, and P<0.00001 for all comparisons), followed by T786-C (OR range = 1.34–1.42, and P<0.00001 for all comparisons) and 4b/a, (OR range = 1.19–1.41, and P≤0.002 for all comparisons) in our pooled analysis. Subgroup analysis revealed that Glu298Asp (OR range = 1.54–1.87, and P<0.004 for all comparisons) and 4b/a (OR range = 1.71–3.02, and P<0.00001 for all comparisons) have highest degree of association amongst the Middle Easterners. On the other hand, T786-C and its minor allele seem to carry a highest risk for CAD among subjects of Asian ancestry (OR range = 1.61–1.90, and P≤0.01 for all comparisons).
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Affiliation(s)
- Himanshu Rai
- Department of Cardiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
- * E-mail: (HR); (SK)
| | - Farah Parveen
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sudeep Kumar
- Department of Cardiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
- * E-mail: (HR); (SK)
| | - Aditya Kapoor
- Department of Cardiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nakul Sinha
- Department of Cardiology, Sahara India Medical Institute, Gomti Nagar, Lucknow, Uttar Pradesh, India
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Martin G, Asensi V, Montes AH, Collazos J, Alvarez V, Pérez-Is L, Carton JA, Taboada F, Valle-Garay E. Endothelial (NOS3 E298D) and inducible (NOS2 exon 22) nitric oxide synthase polymorphisms, as well as plasma NOx, influence sepsis development. Nitric Oxide 2014; 42:79-86. [PMID: 25239655 DOI: 10.1016/j.niox.2014.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 07/24/2014] [Accepted: 09/12/2014] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Nitric oxide (NO) influences susceptibility to infection and hemodynamic failure (HF) in sepsis. NOS3 and NOS2 SNPs might modify plasma nitrite/nitrate (NOx) levels, sepsis development, hemodynamics and survival. METHODS 90 severely septic and 91 non-infected ICU patients were prospectively studied. NOS3 (E298D), NOS3 (-786 T/C), NOS3 (27 bp-VNTR), and NOS2A (exon 22) SNPs and plasma NOx levels were assessed. RESULTS 21 patients (11.6%) died, 7 with sepsis. TT homozygotes and T allele carriers of NOS3 (E298D) and AG carriers of the NOS2A (exon 22) SNPs were more frequent among septic compared to non-infected ICU patients (p < 0.05). Plasma NOx was higher in septic, especially in septic with hemodynamic failure (HF) or fatal outcome (p < 0.006). Plasma NOx was higher in carriers of the T allele of the NOS3 (E298D) SNP (p = 0.006). Sepsis independently associated with HF, increased NOx, peripheral neutrophils, and fibrinogen levels, decreased prothrombin and the presence of the NOS3 (E298D) and NOS2A (exon 22) SNPs. A low APACHE II score was the only variable associated with sepsis survival. NOx was independently associated with sepsis, HF, decreased neutrophils and higher APACHE. CONCLUSIONS NOS3 (E298D) and NOS2A (exon 22) SNPs, individually and in combination, and plasma NOx, associated with sepsis development. NOx associated with HF and fatal outcome.
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Affiliation(s)
- Guadalupe Martin
- Critical Care, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Víctor Asensi
- Infectious Diseases Services, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain.
| | - A Hugo Montes
- Biochemistry and Molecular Biology, Oviedo University School of Medicine, Oviedo, Spain
| | - Julio Collazos
- Infectious Diseases Unit, Hospital de Galdácano, Vizcaya, Spain
| | - Victoria Alvarez
- Molecular Genetics Unit-Nephrology Research Institute, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Laura Pérez-Is
- Biochemistry and Molecular Biology, Oviedo University School of Medicine, Oviedo, Spain
| | - José A Carton
- Infectious Diseases Services, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Francisco Taboada
- Critical Care, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Eulalia Valle-Garay
- Biochemistry and Molecular Biology, Oviedo University School of Medicine, Oviedo, Spain
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Effects of polymorphisms in endothelial nitric oxide synthase and folate metabolizing genes on the concentration of serum nitrate, folate, and plasma total homocysteine after folic acid supplementation: a double-blind crossover study. Nutrition 2014; 31:337-44. [PMID: 25592012 DOI: 10.1016/j.nut.2014.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/12/2014] [Accepted: 08/19/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVES A number of studies have explored the effects of dietary nitrate on human health. Nitrate in the blood can be recycled to nitric oxide, which is an essential mediator involved in many important biochemical mechanisms. Nitric oxide is also formed in the body from l-arginine by nitric oxide synthase. The aim of this study was to investigate whether genetic polymorphisms in endothelial nitric oxide synthase (eNOS) and genes involved in folate metabolism affect the concentration of serum nitrate, serum folate, and plasma total homocysteine in healthy individuals after folic acid supplementation. METHODS In a randomized double-blind, crossover study, participants were given either folic acid 800 μg/d (n = 52) or placebo (n = 51) for 2 wk. Wash-out period was 2 wk. Fasting blood samples were collected, DNA was extracted by salting-out method and the polymorphisms in eNOS synthase and folate genes were genotyped by polymerase chain reaction methods. Measurement of serum nitrate and plasma total homocysteine (p-tHcy) concentration was done by high-performance liquid chromatography. RESULTS The concentration of serum nitrate did not change in individuals after folic acid supplements (trial 1); however, the concentration of serum nitrate increased in the same individuals after placebo (P = 0.01) (trial 2). The individuals with three polymorphisms in eNOS gene had increased concentration of serum folate and decreased concentration of p-tHcy after folic acid supplementation. Among the seven polymorphisms tested in folate metabolizing genes, serum nitrate concentration was significantly decreased only in DHFR del 19 gene variant. A significant difference in the concentration of serum nitrate was detected among individuals with MTHFR C > T677 polymorphisms. CONCLUSIONS Polymorphisms in eNOS and folate genes affect the concentration of serum folate and p-tHcy but do not have any effect on the concentration of NO3 in healthy individuals after folic acid supplementation.
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Tong Y, Zhang Y, Zhan F, Wang Z, Guan XH, Liu J, Yin X, Geng Y, Ye JJ, Hou SY, Liu J, Lu Z, Cheng JQ. Association of endothelial nitric oxide synthase gene mini-satellite marker VNTR polymorphism with ischemic stroke in the Chinese Uyghur population. Int J Cardiol 2014; 174:812-4. [DOI: 10.1016/j.ijcard.2014.04.147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 04/12/2014] [Indexed: 10/25/2022]
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Akhter MS, Biswas A, Rashid H, Devi L, Behari M, Saxena R. Screening of the NOS3 gene identifies the variants 894G/T, 1998C/G and 2479G/A to be associated with acute onset ischemic stroke in young Asian Indians. J Neurol Sci 2014; 344:69-75. [PMID: 24986538 DOI: 10.1016/j.jns.2014.06.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 05/24/2014] [Accepted: 06/12/2014] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Nitric oxide levels and NOS3 gene variants play a pivotal role in the development of vascular diseases/stroke. We attempted to determine the role of NOS3 gene variants and plasma NO levels towards the development of ischemic stroke in young Asian-Indians. METHODS One hundred ischemic stroke patients and 200 age and sex matched control study subjects were screened for NOS3 gene variants using SSCP [single stranded confirmation polymorphism] and PCR based techniques. Plasma NO metabolites [NOx] were evaluated for the investigated population. RESULTS Significantly higher NOx levels were observed in controls [controls 56.63±25.92 μmol/L, patients 34.73±19.88 μmol/L, p<0.001]. The SNPs [single nucleotide polymorphisms] 894G/T, 1998C/G and 2479G/A were found associated with the disease phenotype with the most significant finding observed for 894G/T [χ(2)=36.68, p<0.001]. The SNPs 894G/T and 2479G/A were significantly associated with NOx levels [p=0.001]. The haplotypes TCA and TGA were overrepresented in the patient population [p<0.0001]. CONCLUSION Two NOS3 SNP [894G/T and 2479G/A] variants and NOx levels are associated with ischemic stroke in young Asian Indians. These NOS3 SNPs might represent genetic risk factors for ischemic stroke in young Asian Indians. However these observations need to be confirmed by larger replicate/cross-sectional studies.
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Affiliation(s)
- Mohd Suhail Akhter
- Department of Haematology, All India Institute of Medical Sciences, New Delhi, India
| | - Arijit Biswas
- Department of Molecular Biology, Institute of Experimental Haematology and Transfusion Medicine, Bonn, Germany
| | - Hina Rashid
- Indian Council of Medical Research, New Delhi, India
| | - Luxmi Devi
- Department of Haematology, All India Institute of Medical Sciences, New Delhi, India
| | - Madhuri Behari
- Department of Neurosciences, All India Institute of Medical Sciences, New Delhi, India
| | - Renu Saxena
- Department of Haematology, All India Institute of Medical Sciences, New Delhi, India.
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Yun Z, Yu-Ping Y, Zong-Wu T, Yang S, Fang Y, Fang S. Association of endothelial nitric oxide synthase gene polymorphisms with end-stage renal disease: a systematic review and meta-analysis. Ren Fail 2014; 36:987-93. [DOI: 10.3109/0886022x.2014.900601] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Abstract
AbstractThe NOS3 gene has been associated with athletic endurance performance and elite power athletic status. With respect to NOS3 G894T and its relation to athletic performance or status, results across various studies have not been consistent. Therefore, the lack of consistency among previous studies prompted us to design a case-control study in a Polish Caucasian population to examine the relationship between the NOS3 G894T polymorphism and athletes' status, i.e. type and intensity of exercise performed (poweroriented, “mixed” power/endurance activity, endurance-oriented) and the possible association between the G894T variant and athletic performance. The case-control study was performed in a group of 360 Polish athletes (cases) of the highest nationally competitive standard (male n=156 and female n=67) and 191 unrelated, sedentary control subjects. The G894T genotype and allele distributions differed significantly between power-oriented (P=0.009, P=0.003), “mixed” (P=0.021, P=0.009), endurance (P=0.043, P=0.014) athletes when compared to control subjects (P values for genotypes and alleles, respectively). There were no significant differences between elite and sub-elite athletes in any group. The over-representation of the GG genotype and G allele in all athletes suggests that the G894 allele may favour all types of sports, however, the strongest predisposition was seen among power-oriented athletes.
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Nitric oxide synthase gene polymorphisms in functional dyspepsia. Dig Dis Sci 2014; 59:72-7. [PMID: 24114042 DOI: 10.1007/s10620-013-2886-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 09/11/2013] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Nitrinergic control is important in meal-induced satiety. The aim of this study was to assess functional polymorphisms in nitric oxide synthase (NOS) genes in the susceptibility to functional dyspepsia (FD). METHODS Genomic DNA from 89 patients with FD and 180 healthy subjects matched for age and gender were typed for the gene of neuronal NOS (nNOS, rs2682826), inducible NOS (iNOS, rs2297518) and a variable number tandem repeat in intron 4 of endothelial NOS (eNOS). Patients ingested 500 mL of Ensure(®) during a 20 min period and dyspeptic symptoms were scored. RESULTS Genotype frequencies of eNOS and iNOS were not significantly different between FD patients and controls. The frequency of the T allele in nNOS was significantly higher in FD patients compared to the controls (49 vs. 16 %; odds ratio 5.01; 95 % confidence interval 2.83-9.01; p < 0.05). Patients with the T allele in the nNOS polymorphism reported a higher satiation score than those with the CC genotype during the nutrition drink test (median 179 vs. 117; p < 0.05). CONCLUSION The nNOS gene polymorphism is associated with susceptibility to FD and influences satiation in FD patients. Our data support the importance of NOS gene polymorphisms in the pathogenesis of FD.
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