1
|
Mallhi TH, Shahid M, Rehman K, Khan YH, Alanazi AS, Alotaibi NH, Akash MSH, Butt MH. Biochemical Association of MTHFR C677T Polymorphism with Myocardial Infarction in the Presence of Diabetes Mellitus as a Risk Factor. Metabolites 2023; 13:251. [PMID: 36837870 PMCID: PMC9958922 DOI: 10.3390/metabo13020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Myocardial infarction (MI) is a cardiovascular disease that occurs due to the blockage of the coronary artery. Subsequently, cardiac muscles receive a lower oxygen supply, which leads to the death of cardiac muscles. The etiology of MI is linked to various environmental, occupational, and genetic factors. Various studies have been conducted on the polymorphism of genes involved in MI. Previous studies have shown that different variants of the methylene tetrahydrofolate reductase (MTHFR) gene are involved in causing MI by altering the metabolism of folate and homocysteine. However, the genetic polymorphism of MTHFR C677T (rs1801133) and its association with MI in the presence of diabetes mellitus (DM) as a risk factor still needs to be investigated. This study recruited 300 participants who were divided into three groups, i.e., the control, MI, and MI-DM. The blood samples collected from the study participants were subjected to various biochemical tests and their clinical parameters were monitored. MTHFR C677T (rs1801133) genotyping was performed by Tetra ARMS PCR using predetermined primers. The MTHFR C677T (rs1801133) polymorphism was associated with MI in the presence of DM as a risk factor among the participants. The MTHFR C677T (rs1801133) T/T homozygous genotype was found to be significant among MI patients in the presence of DM as a risk factor.
Collapse
Affiliation(s)
- Tauqeer Hussain Mallhi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Momina Shahid
- Department of Pharmacy, The University of Faisalabad, Faisalabad 38000, Pakistan
- Department of Pharmaceutical Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Kanwal Rehman
- Department of Pharmacy, The Women University, Multan 60000, Pakistan
| | - Yusra Habib Khan
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Abdullah Salah Alanazi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Nasser Hadal Alotaibi
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | | | - Muhammad Hammad Butt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Uppsala University, 75123 Uppsala, Sweden
| |
Collapse
|
2
|
Wu DF, Liao QC, Lu F, Wang Z, Yu K, Deng JL. Differential effects of hyperhomocysteinemia on the lipid profiles and lipid ratios between patients with and without coronary artery disease: A retrospective observational study. Medicine (Baltimore) 2022; 101:e32464. [PMID: 36595992 PMCID: PMC9803476 DOI: 10.1097/md.0000000000032464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
This study aimed to investigate the differential effects of hyperhomocysteinemia (HHcy) on lipid profiles and lipid ratios between patients with coronary artery disease (CAD) and without CAD. The data of 872 CAD patients and 774 non-CAD controls were extracted from the information system of hospitalized patients. Serum homocysteine (Hcy), total cholesterol (TC), triglycerides (TGs), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein (Apo) AI, and ApoB concentrations were detected. HHcy was defined as a serum level of Hcy ≥ 15 μmol/L. The CAD patients had lower levels of HDL-C and ApoAI and higher levels of Hcy than the controls (P < .05). Serum TGs and HDL-C were negatively correlated with Hcy in controls. Serum HDL-C and ApoAI were negatively correlated with Hcy, and the ratios of TC/HDL-C, TG/HDL-C, LDL/HDL-C, and ApoB/ApoAI were positively correlated with Hcy in the CAD patients (P < .05). Although the trends for HHcy to decrease the lipid profiles were not different between the CAD and controls (Pinteraction > 0.05), CAD with HHcy had lower HDL-C and ApoAI levels than those of subjects with normal Hcy; controls with HHcy had lower TC, LDL-C, and ApoB levels than those of subjects with normal Hcy (P < .05). There were different HHcy trends affecting the ratios of TC/HDL-C and LDL/HDL-C between the CAD patients and controls (Pinteraction for TC/HDL-C = 0.025; Pinteraction for LDL/HDL-C = 0.033). CAD patients with HHcy had a higher ratio of TC/HDL-C (P = .022) and LDL/HDL-C (P = .045) than those of patients with normal Hcy, but in the controls, the subjects with HHcy exhibited a trend toward a decreased ratio of TC/HDL-C (P = .481) and LDL/HDL-C (P = .303). There were differential effects of HHcy on the lipid ratios between CAD and non-CAD patients. HHcy was related to higher ratios of TC/HDL-C and LDL/HDL-C in patients with CAD.
Collapse
Affiliation(s)
- Dong-Feng Wu
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qin-Chen Liao
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Feng Lu
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Zhou Wang
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Kun Yu
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jin-Long Deng
- Department of Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
- * Correspondence: Jin-Long Deng, Department of the Geriatric Cardiology, Guangxi Academy of Medical Sciences and the People’s Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Nanning, Guangxi 530021, People’s Republic of China (e-mail: )
| |
Collapse
|
3
|
Explore the Role of the rs1801133-PPARG Pathway in the H-type Hypertension. PPAR Res 2022; 2022:2054876. [PMID: 35356087 PMCID: PMC8958104 DOI: 10.1155/2022/2054876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 11/18/2022] Open
Abstract
Both rs1801133 mutation on Methylenetetrahydrofolate reductase (MTHFR) gene and transcription factor peroxisome proliferator-activated gamma (PPARG) have been associated with plasma homocysteine (Hcy) levels and hypertension. However, their role in H-type hypertension remains unclear. In this study, we first tested the association between rs1801133 genotypes and Hcy level in H-type hypertension using clinical profiles collected from 203 patients before and after the treatment using enalapril maleate and folic acid tablets (EMFAT). Then, we constructed a literature-based pathway analysis to explore the role of the rs1801133-PPARG signaling pathway in H-type hypertension and its treatment. Although presented similar blood pressure, the patients with TT genotype of rs1801133 were much younger (
value <0.05) and significantly higher in Hcy levels (
and
) than that in the CC and CT genotype groups. Pathway analysis showed that T-allele of rs1801133 could inhibit the expression of PPARG through the downregulation of folate levels and upregulation of Hcy levels, which increased the risk of hypertension and hyperhomocysteinemia. Treatment using EMFAT led to similarly decreased Hcy levels for all patients with different genotypes (
;
), which may occur partially through the activation of PPARG. Moreover, even after treatment, the patients with TT genotype still presented significantly higher Hcy levels (
and
). Our results supported that rs1801133 mutation could play a role in H-type hypertension, which might be partially through the downregulation of PPARG. Moreover, PPARG might also be involved in treating H-type hypertension using EMFAT.
Collapse
|
4
|
Fan Y, Wu L, Zhuang W. Methylenetetrahydrofolate Reductase Gene rs1801133 and rs1801131 Polymorphisms and Essential Hypertension Risk: A Comprehensive Analysis. Cardiovasc Ther 2022; 2022:2144443. [PMID: 35284002 PMCID: PMC8888071 DOI: 10.1155/2022/2144443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 12/26/2021] [Accepted: 01/19/2022] [Indexed: 12/21/2022] Open
Abstract
Background Essential hypertension (EH) is a common and multifactorial disorder that is likely to be influenced by multiple genes. The methylenetetrahydrofolate reductase (MTHFR) gene rs1801133 and rs1801131 polymorphisms influence MTHFR enzyme activity and plasma homocysteine concentration. In addition, variations in MTHFR functions likely play roles in the etiology of EH. Thus far, a large number of studies investigating the associations between the MTHFR polymorphisms and EH have provided controversial or inconclusive results. To better assess the purported relationship, we performed a comprehensive analysis of 52 published studies. Objective and Methods. Eligible studies were identified by searching the PubMed, Wanfang, and China National Knowledge Infrastructure (CNKI) databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to assess the potential association between the MTHFR rs1801133 polymorphism and EH. Results Overall, 10712 patients and 11916 controls were involved; we observed significantly increased association between the MTHFR rs1801133 polymorphism and EH risk (such as T vs. C: OR = 1.38, 95% CI = 1.25 - 1.54, P ≤ 0.001), with similar results evident within race subgroups (such as Asian: T vs. C: OR = 1.47, 95% CI = 1.30 - 1.67, P ≤ 0.001; compared to Chinese: T vs. C: OR = 1.54, 95% CI = 1.33 - 1.79, P ≤ 0.001). Similar associations were also found in subgroups defined by the source of controls and genotype methods. To our regret, based on the limited studies, no association was detected for rs1801131 polymorphism. Conclusions Our study provides evidence that the MTHFR rs1801133 null genotype may increase EH risk. Future studies with larger sample sizes are warranted to evaluate this association in more detail.
Collapse
Affiliation(s)
- Yingchao Fan
- Medical Laboratory, Shidong Hospital Affiliated to University of Shanghai for Science and Technology, No. 999, Shiguang Road, 200438 Yangpu District, Shanghai, China
| | - Liting Wu
- Medical Laboratory, Shidong Hospital Affiliated to University of Shanghai for Science and Technology, No. 999, Shiguang Road, 200438 Yangpu District, Shanghai, China
| | - Wenfang Zhuang
- Medical Laboratory, Shidong Hospital Affiliated to University of Shanghai for Science and Technology, No. 999, Shiguang Road, 200438 Yangpu District, Shanghai, China
| |
Collapse
|
5
|
Meng H, Huang S, Yang Y, He X, Fei L, Xing Y. Association Between MTHFR Polymorphisms and the Risk of Essential Hypertension: An Updated Meta-analysis. Front Genet 2021; 12:698590. [PMID: 34899823 PMCID: PMC8662810 DOI: 10.3389/fgene.2021.698590] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/18/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Since the 1990s, there have been a lot of research on single-nucleotide polymorphism (SNP) and different diseases, including many studies on 5,10-methylenetetrahydrofolate reductase (MTHFR) polymorphism and essential hypertension (EH). Nevertheless, their conclusions were controversial. So far, six previous meta-analyses discussed the internal relationship between the MTHFR polymorphism and EH, respectively. However, they did not evaluate the credibility of the positive associations. To build on previous meta-analyses, we updated the literature by including previously included papers as well as nine new articles, improved the inclusion criteria by also considering the quality of the papers, and applied new statistical techniques to assess the observed associations. OBJECTIVES This study aims to explore the degree of risk correlation between two MTHFR polymorphisms and EH. METHODS PubMed, EMBASE, the Cochrane Library, CNKI, and Wan Fang electronic databases were searched to identify relevant studies. We evaluated the relation between the MTHFR C677T (rs1801133) and A1298C (rs1801131) polymorphisms and EH by calculating the odds ratios (OR) as well as 95% confidence intervals (CI). Here we used subgroup analysis, sensitivity analysis, cumulative meta-analysis, assessment of publication bias, meta-regression meta, False-positive report probability (FPRP), Bayesian false discovery probability (BFDP), and Venice criterion. RESULTS Overall, harboring the variant of MTHFR C677T was associated with an increased risk of EH in the overall populations, East Asians, Southeast Asians, South Asians, Caucasians/Europeans, and Africans. After the sensitivity analysis, positive results were found only in the overall population (TT vs. CC: OR = 1.14, 95% CI: 1.00-1.30, P h = 0.032, I 2 = 39.8%; TT + TC vs. CC: OR = 1.15, 95% CI: 1.01-1.29, P h = 0.040, I 2 = 38.1%; T vs. C: OR = 1.14, 95% CI: 1.04-1.25, P h = 0.005, I 2 = 50.2%) and Asian population (TC vs. CC: OR = 1.14, 95% CI: 1.01-1.28, P h = 0.265, I 2 = 16.8%; TT + TC vs. CC: OR = 1.17, 95% CI: 1.04-1.30, P h = 0.105, I 2 = 32.9%; T vs. C: OR = 1.10, 95% CI: 1.02-1.19, P h = 0.018, I 2 = 48.6%). However, after further statistical assessment by FPRP, BFDP, and Venice criteria, the positive associations reported here could be deemed to be false-positives and present only weak evidence for a causal relationship. In addition, when we performed pooled analysis and sensitivity analysis on MTHFR A1298C; all the results were negative. CONCLUSION The positive relationships between MTHFR C677T and A1298C polymorphisms with the susceptibility to present with hypertension were not robust enough to withstand statistical interrogation by FPRP, BFDP, and Venice criteria. Therefore, these SNPs are probably not important in EH etiology.
Collapse
Affiliation(s)
- Hao Meng
- Department of Cardiovascular Medicine, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Shaoyan Huang
- Department of Endocrinology, Shaogauan First People's Hospital, Shaoguan, China
| | - Yali Yang
- Department of Cardiovascular Medicine, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Xiaofeng He
- Department of science and education, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Liping Fei
- Department of Cardiovascular Medicine, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Yuping Xing
- Neurology Department, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| |
Collapse
|
6
|
Morales R, Lledó B, Ortiz JA, Cascales A, Codina H, Rodríguez-Arnedo A, Llácer J, Bernabeu A, Bernabeu R. Methylenetetrahydrofolate reductase gene polymorphisms are not associated with embryo chromosomal abnormalities and IVF outcomes. Syst Biol Reprod Med 2021; 67:270-280. [PMID: 34053384 DOI: 10.1080/19396368.2021.1923861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of our study was to investigate the effect of maternal and embryo MTHFR C677T and A1298C polymorphisms on embryo aneuploidies and mosaicism and the correlation between these genetic variants in transferred euploid embryos and IVF outcomes. MTHFR genotype was analyzed in 77 women who performed an IVF/ICSI cycle with PGT-A. Moreover, to evaluate the effect of embryo MTHFR polymorphisms on embryo aneuploidies and mosaicism, the MTHFR genotype was analyzed in 191 biopsied embryos from the PGT-A cycles of these patients. Additionally, 218 DNA samples from trophectoderm biopsies belonging to a different group of patients were also genotyped. MTHFR polymorphisms were analyzed in a total amount of 409 trophectoderm samples. The main parameters analyzed were embryo aneuploidy and mosaicism rates. Finally, the IVF outcomes of 241 single euploid embryo transfers were assessed and compared between different MTHFR embryo genotypes. The aneuploidy rates were similar in embryos from homozygous normal women and women with at least one mutated allele (54.7% vs. 30.2% in 677C>T and 37.8% vs. 42.7% in 1298A>C). Furthermore, no differences were observed in the mosaicism rate (24.0% vs. 13.8% in 677C>T and 17.1% vs. 17.3% in 1298A>C). A similar analysis was performed, taking into account the embryo genotype results. No differences in aneuploidy rate were observed between the study groups. The only significant difference was the mosaicism rate among 677C>T genotype (13.5% in 677CC group vs. 5.4% in 677CT/TT; p = 0.019). Implantation rate, biochemical and clinical miscarriage rates, and ongoing pregnancy rate were compared between different embryo genotypes, and no statistically significant differences were found. In conclusion, the maternal MTHFR genotype did not influence embryo chromosomal abnormalities. Moreover, the embryo MTHFR genotype was not associated with embryo aneuploidy or IVF outcomes such as implantation, pregnancy loss, and ongoing pregnancy when euploid embryos were transferred.Abbreviations: MTHFR: methylenetetrahydrofolate reductase; IVF: in vitro fertilization; PGT-A: preimplantation genetic testing for aneuploidies; SAM: S-adenosyl methionine; SNP: single nucleotide polymorphism; SPSS: Statistical Package for Social Sciences; RIF: recurrent implantation failure; RPL: recurrent pregnancy loss; hCG: human chorionic gonadotropin; PBS: phosphate buffered saline; CGH: comparative genomic hybridization; NGS: next generation sequencing.
Collapse
Affiliation(s)
- Ruth Morales
- Molecular Biology, Instituto Bernabeu, Alicante, Spain
| | - Belén Lledó
- Molecular Biology, Instituto Bernabeu, Alicante, Spain
| | - José A Ortiz
- Molecular Biology, Instituto Bernabeu, Alicante, Spain
| | - Alba Cascales
- Molecular Biology, Instituto Bernabeu, Alicante, Spain
| | - Helena Codina
- Molecular Biology, Instituto Bernabeu, Alicante, Spain
| | | | - Joaquin Llácer
- Reproductive Medicine, Instituto Bernabeu, Alicante, Spain
| | | | | |
Collapse
|
7
|
Wu X, Lin J, Xue N, Teng J, Wang Y, Li Y, Xu X, Shen Z, Ding X, Fang Y. Relationship Between Gene Polymorphism of Methylenetetrahydrofolate Reductase C677T and Left Ventricular Hypertrophy in Chinese Patients with Chronic Kidney Disease. Lab Med 2021; 52:519-527. [PMID: 33693817 DOI: 10.1093/labmed/lmab004] [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: 11/13/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the relationship between the gene polymorphism of methylenetetrahydrofolate reductase (MTHFR) C677T and left ventricular hypertrophy (LVH) in patients with chronic kidney disease (CKD). METHODS A total of 763 Chinese patients with CKD undergoing genetic testing were included in the study. The association between the gene polymorphism of MTHFR C677T and echocardiographic parameters was analyzed through univariate and multivariate analyses. RESULTS We found a remarkably positive association between MTHFR C677T gene polymorphism and LVH indexes, including interventricular septal thickness (F = 3.8; P = .022), left ventricular posterior wall thickness (F = 3.0; P = .052), left ventricular mass (F = 3.9; P = .022), and left ventricular mass index (F = 2.6; P = .075). After adjusting for the potential confounders linking the polymorphism,we found that the positive association between the polymorphism and LVH indexes still existed in patients with CKD in some multiple linear regression models (P <.05). CONCLUSION MTHFR C677T gene polymorphism may be a genetic susceptibility marker for the development of LVH in patients with CKD.
Collapse
Affiliation(s)
- Xie Wu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Lin
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ning Xue
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie Teng
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yaqiong Wang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yang Li
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xunhui Xu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ziyan Shen
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Medical Center of Kidney Disease, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Zhongshan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
8
|
Butler S, Young A, Akam EC, Sinha N, Agrawal S, Mastana S. Association of methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms with coronary artery disease (CAD) in a North Indian population. COGENT MEDICINE 2018. [DOI: 10.1080/2331205x.2018.1478477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Stephen Butler
- Human Genomics Lab, School of Sport, Exercise and Heath Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| | - Aaron Young
- Human Genomics Lab, School of Sport, Exercise and Heath Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| | - Elizabeth C. Akam
- Human Genomics Lab, School of Sport, Exercise and Heath Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| | - Nakul Sinha
- Department of Cardiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, India
| | | | - Sarabjit Mastana
- Human Genomics Lab, School of Sport, Exercise and Heath Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| |
Collapse
|
9
|
Borai IH, Soliman AF, Ahmed HM, Ahmed GF, Kassim SK. Association of MTHFR C677T and ABCA1 G656A polymorphisms with obesity among Egyptian children. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
10
|
Attar M, Shirangi S, Shateri F, Shahbazi M. Common variant of 5,10-methylenetetrahydrofolate reductase may increase risk of coronary artery disease in the Iranian population. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2018. [DOI: 10.1016/j.ejmhg.2017.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
11
|
Methylenetetrahydrofolate Reductase (MTHFR) (C677T and A1298C) Polymorphisms and Vascular Complications in Patients with Type 2 Diabetes. Can J Diabetes 2017; 41:366-371. [DOI: 10.1016/j.jcjd.2016.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 08/14/2016] [Accepted: 11/17/2016] [Indexed: 11/23/2022]
|
12
|
Rashed L, Abdel Hay R, AlKaffas M, Ali S, Kadry D, Abdallah S. Studying the association between methylenetetrahydrofolate reductase (MTHFR) 677 gene polymorphism, cardiovascular risk and lichen planus. J Oral Pathol Med 2017; 46:1023-1029. [PMID: 28463405 DOI: 10.1111/jop.12588] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND There is a reported relation between hyperhomocysteinemia and lichen planus (LP). An increase in homocysteine (Hcy) and the risk of cardiovascular disease (CVD) in patients with methylenetetrahydrofolate reductase (MTHFR) mutation has been described. OBJECTIVE To detect MTHFR (C677T) gene polymorphism, and to find its association with CVD risk, Hcy and folic acid levels in patients with LP. METHODS This hospital-based case-control study included 110 patients with LP: 70 with cutaneous LP (CLP) and 40 with oral LP (OLP). A total of 120 age- and sex-matched healthy subjects were used as controls. Three millilitre venous blood sample was taken for detection of MTHFR gene polymorphism by PCR-RFLP technique and for measurement of the lipid profile. Hcy and folic acid were measured by ELISA. Hypertension was evaluated. RESULTS There were significantly higher prevalence of hypertension with higher Hcy, triglycerides and cholesterol levels and lower folic acid and HDL levels among patients' groups. Hypertension with higher Hcy and cholesterol levels together with lower folic acid and HDL levels have been found in OLP when compared to CLP. Patients showed a significant higher percentage of the MTHFR 677 TT genotype (P=.003) and of the MTHFR 677 T allele (P=.042) compared to controls. Moreover, there was a higher prevalence of MTHFR 677 T allele in patients with CLP. CONCLUSION MTHFR 677 gene polymorphism may be a risk factor for the development of the LP, and to predispose these patients to higher risk of CVD.
Collapse
Affiliation(s)
- Laila Rashed
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rania Abdel Hay
- Dermatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Marwa AlKaffas
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Shereen Ali
- Oral Medicine and Periodontology Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.,Oral Medicine and Periodontology Department, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt
| | - Dina Kadry
- Dermatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sara Abdallah
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| |
Collapse
|
13
|
Dhananjayan R, Malati T, Rupasree Y, Kutala VK. Association of Aberrations in One Carbon Metabolism with Intimal Medial Thickening in Patients with Type 2 Diabetes Mellitus. Indian J Clin Biochem 2015; 30:263-70. [PMID: 26089610 DOI: 10.1007/s12291-014-0458-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 06/30/2014] [Indexed: 01/22/2023]
Abstract
The present work was aimed to study the association of one carbon genetic variants, hyperhomocysteinemia and oxidative stress markers, i.e., serum nitrite, plasma malondialdehyde (MDA) and glutathione (GSH) on intimal medial thickening (IMT) in patients with type 2 diabetes mellitus (T2D). A total number of 76 subjects from ACS Medical College and Hospital, Chennai, India were included in the study, i.e., Group I (n = 42) of T2D and Group II (n = 34) of age- and sex matched healthy controls. The glycated haemoglobin was measured by ion-exchange resin method; plasma homocysteine by Enzyme Linked Immunosorbant Assay method; serum nitrite (nitric oxide, NO), plasma MDA and GSH by spectrophotometric methods; the IMT by high frequency ultrasound. The polymorphisms of one carbon genetic variants were genotyped using polymerase chain reaction-restriction fragment length polymorphism and amplified fragment length polymorphism methods. Results indicate that methyltetrahydrofolate homocysteine methyl transferase (MTR) A2756G allele was found to be protective in T2D and the other variants were not significantly associated with T2D. Glutamate carboxypeptidase II (GCP II) C1561T (r = 0.34; p = 0.05) and methylene tetrahydrofolate reductase (MTHFR) C677T (r = 0.35; 0.04) showed positive correlation with plasma homocysteine in T2D cases. In this study, MTR A2756G allele was found to be protective in T2D; GCP II C1561T and MTHFR C677T showed positive association with plasma homocysteine in T2D cases. Among all the genetic variants, MTR A2756G was found influence IMT. RFC 1 G80A and TYMS 5'-UTR 2R3R showed synergistically interact with MTR A2756G in influencing increase in IMT.
Collapse
Affiliation(s)
- R Dhananjayan
- Department of Biochemistry, ACS Medical College & Hospital, Velappanchavadi, Chennai, 600 077 Tamil Nadu India
| | - T Malati
- Department of Biochemistry, Nizam's Institute of Medical Sciences, Hyderabad, 500 082 Andhra Pradesh India
| | - Y Rupasree
- Clinical Pharmacology and Therapeutics, Nizam's Institute of Medical Sciences, Hyderabad, 500 082 Andhra Pradesh India
| | - Vijay Kumar Kutala
- Clinical Pharmacology and Therapeutics, Nizam's Institute of Medical Sciences, Hyderabad, 500 082 Andhra Pradesh India
| |
Collapse
|
14
|
Yang KM, Jia J, Mao LN, Men C, Tang KT, Li YY, Ding HX, Zhan YY. Methylenetetrahydrofolate reductase C677T gene polymorphism and essential hypertension: A meta-analysis of 10,415 subjects. Biomed Rep 2014; 2:699-708. [PMID: 25054014 DOI: 10.3892/br.2014.302] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 06/05/2014] [Indexed: 11/06/2022] Open
Abstract
The methylenetetrahydrofolate reductase (MTHFR) C677T gene polymorphism has been suggested to be associated with the risk of essential hypertension (EH), however, results remain inconclusive. To investigate this association, the present meta-analysis of 27 studies including 5,418 cases and 4,997 controls was performed. The pooled odds ratio (OR) and its corresponding 95% confidence interval were calculated using the random-effects model. A significant association between the MTHFR C677T gene polymorphism and EH was found under the allelic (OR, 1.32; 95% CI, 1.20-1.45; P=0.000), dominant (OR, 1.39; 95% CI, 1.25-1.55; P=0.000), recessive (OR, 1.38; 95% CI, 1.18-1.62; P=0.000), homozygote (OR, 1.59; 95% CI, 1.32-1.92; P=0.000), and heterozygote (OR, 1.32; 95% CI, 1.20-1.45; P=0.000) genetic models. A strong association was also revealed in subgroups, including Asian, Caucasian and Chinese. The Japanese subgroup did not show any significant association under all models. Meta-regression analyses suggested that the study design was a potential source of heterogeneity, whereas the subgroup analysis additionally indicated that the population origin may also be an explanation. Another subgroup analysis revealed that hospital-based studies have a stronger association than population-based studies, however, the former suffered a greater heterogeneity. Funnel plot and Egger's test manifested no evidence of publication bias. In conclusion, the present study supports the evidence for the association between the MTHFR C677T gene polymorphism and EH in the whole population, as well as in subgroups, such as Asian, Caucasian and Chinese. The carriers of the 677T allele are susceptible to EH.
Collapse
Affiliation(s)
- Ke-Ming Yang
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jian Jia
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Li-Na Mao
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Chen Men
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Kang-Ting Tang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yan-Yan Li
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Hai-Xia Ding
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yi-Yang Zhan
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| |
Collapse
|
15
|
Prevalence of thrombophilic gene polymorphisms (FVL G1691A and MTHFR C677T) in patients with myocardial infarction. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2014. [DOI: 10.1016/j.ejmhg.2014.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
|
16
|
Devi N, Padhy K, Lakshmi V, Satyanarayana PV, Veerraju P. Renin angiotensin aldosterone system (RAAS) gene polymorphism in CABG patients: a translational study. Indian J Thorac Cardiovasc Surg 2013. [DOI: 10.1007/s12055-013-0195-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
17
|
Moritz AI, de Moura JR, Persuhn DC. Frequency of MTHFR G1793A polymorphism in individuals with early coronary artery disease: cross-sectional study. SAO PAULO MED J 2013; 131:296-300. [PMID: 24310797 PMCID: PMC10876330 DOI: 10.1590/1516-3180.2013.1315500] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 12/07/2012] [Indexed: 01/05/2023] Open
Abstract
CONTEXT AND OBJECTIVE Atherosclerotic disease is the leading cause of death in Brazil. It is a complex disease and its prevention involves identification and control of risk factors. Moderately increased plasma homocysteine concentration (hyperhomocysteinemia) has been considered to be a risk factor for several vascular diseases. Mutations in the methylenetetrahydrofolate reductase (MTHFR) enzyme, which is involved in homocysteine metabolism, have been investigated as potential vascular disease risk factors. G1793A polymorphism was described in 2002 and there are few studies analyzing its involvement in diseases. The objective of this study was to investigate the prevalence of G1793A polymorphism in subjects with early coronary artery disease (CAD). DESIGN AND SETTING Cross-sectional study with control group conducted at a private cardiology clinic and a molecular biology laboratory (Universidade do Vale do Itajaí). METHODS We studied 74 early-onset CAD+ patients and 40 CAD- individuals with normal angiography results. DNA was extracted from blood samples. Molecular data were obtained via PCR/RFLP and agarose gel electrophoresis. RESULTS The occurrence of G1793A heterozygotes was similar in the control (5%) and test (6.25%) groups, thus showing that in the population studied there was no correlation between the marker and occurrences of early CAD. There was also no association between the polymorphism and the risk factors for atherosclerosis. CONCLUSIONS The frequency of the 1793A allele in the test group (3.4%) was similar to what was found in the control individuals (2.5%). There was no correlation between G1793A polymorphism and occurrences of early CAD in this population.
Collapse
Affiliation(s)
| | | | - Darlene Camati Persuhn
- PhD. Biochemist and Assistant Professor I, Department of Molecular Biology, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
| |
Collapse
|
18
|
AbdRaboh NR, Badr S, Ali S. Prevalence of methylenetetrahydrofolate reductase C677T and A1298C polymorphisms in Egyptian patients with type 2 diabetes mellitus. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2013. [DOI: 10.1016/j.ejmhg.2012.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
|
19
|
MTHFR C677T polymorphism and its relationship to myocardial infarction in the Eastern Black Sea region of Turkey. Arch Med Res 2012; 42:709-12. [PMID: 22222489 DOI: 10.1016/j.arcmed.2011.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 12/12/2011] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIMS An association of homozygous MTHFR 677T genotypes with elevated plasma homocysteine level has been documented, but results are still controversial. We aimed to investigate prevalence of the C677T polymorphism in patients with acute myocardial infarction (MI) in the Eastern Black Sea region of Turkey. METHODS We studied genomic DNA of 231 unrelated patients (aged 59 ± 13 years; 175 male, 56 female) with first anterior acute MI and 242 healthy controls (aged 54 ± 19 years; 182 male, 60 female) using real-time polymerase chain reaction kits for the MTHFR C677T mutation. RESULTS Prevalence of MTHFR C677T mutant genotype was 49.1% (CT: 45.8%, TT: 3.3%) in controls and 48.45% (CT: 38.5%, TT: 9.95%) in patients with acute MI. The TT mutation was more frequent in patients with acute MI than in controls (9.95 vs. 3.3%) (OR; 3.23, 95% CI; [1.34-8.05], p = 0.003). CONCLUSIONS The MTHFR gene homozygote TT mutation is a risk factor for patients with MI in the eastern Black Sea Turkish Population.
Collapse
|
20
|
Oxidative Stress is Associated with Genetic Polymorphisms in One-Carbon Metabolism in Coronary Artery Disease. Cell Biochem Biophys 2011; 67:353-61. [DOI: 10.1007/s12013-011-9322-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
21
|
Chang YH, Fu WM, Wu YH, Yeh CJ, Huang CN, Shiau MY. Prevalence of methylenetetrahydrofolate reductase C677T and A1298C polymorphisms in Taiwanese patients with Type 2 diabetic mellitus. Clin Biochem 2011; 44:1370-4. [DOI: 10.1016/j.clinbiochem.2011.09.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/23/2011] [Accepted: 09/16/2011] [Indexed: 01/15/2023]
|
22
|
Isordia-Salas I, Trejo-Aguilar A, Valadés-Mejía MG, Santiago-Germán D, Leaños-Miranda A, Mendoza-Valdéz L, Jáuregui-Aguilar R, Borrayo-Sánchez G, Majluf-Cruz A. C677T polymorphism of the 5,10 MTHFR gene in young Mexican subjects with ST-elevation myocardial infarction. Arch Med Res 2010; 41:246-50. [PMID: 20637366 DOI: 10.1016/j.arcmed.2010.04.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Accepted: 04/13/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIMS The C677T polymorphism of 5,10 methylenetetrahydrofolate reductase (MTHFR) gene has been associated with hypertension and coronary artery disease in several populations worldwide, but results are still controversial. The aim of this study was to examine the possible association of C677T polymorphism with ST-elevation myocardial infarction (STEMI) in young Mexican subjects. METHODS In a case-control study, 167 unrelated patients < or = 45 years of age with diagnosis of STEMI who were admitted to a cardiovascular intense care unit and 167 unrelated controls subjects matched by age and gender were recruited from January 2006 and June 2009. The C677T polymorphism was determined in all participants by a polymerase chain reaction-restriction fragment length polymorphism assay (PCR-RFLP). RESULTS There was no significant difference in the genotype distribution between groups (p = 0.69) or allele frequency (p = 0.40). There were independent factors for STEMI: smoking (OR 4.9, 95% CI 3.0-8.1, p = 0.001), hypertension (OR 1.8, 95% CI 1.0-3.3, p = 0.03), family history of atherothrombotic disease (OR 2.3, 95% CI 2.0-4.6, p = 0.02), and dyslipidemia (OR 3.2, 95% CI 1.8-5.6, p <0.001). Diabetes mellitus did not represent an independent risk factor for STEMI (OR 1.2, 95% CI 0.2-2.2, p = 0.82). CONCLUSIONS The TT genotype from the C677T of 5,10 MTHFR gene is not an independent risk factor for STEMI in the Mexican population. However, more studies are needed to determine the possible "protective effect" of the C677T polymorphism in our population.
Collapse
Affiliation(s)
- Irma Isordia-Salas
- Unidad de Investigación Médica en Trombosis, Hemostasia y Aterogénesis, H.G.R. No. 1, Dr. Carlos MacGregor Sánchez Navarro, Instituto Mexicano del Seguro Social, México, D.F., México.
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Vijaya Lakshmi SV, Naushad SM, Rupasree Y, Seshagiri Rao D, Kutala VK. Interactions of 5'-UTR thymidylate synthase polymorphism with 677C → T methylene tetrahydrofolate reductase and 66A → G methyltetrahydrofolate homocysteine methyl-transferase reductase polymorphisms determine susceptibility to coronary artery disease. J Atheroscler Thromb 2010; 18:56-64. [PMID: 20962453 DOI: 10.5551/jat.5702] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM The current study aimed to address the inconsistencies in association studies, specifically with reference to methylene tetrahydrofolate reductase (MTHFR) C677T polymorphism in the light of gene-gene and gene-nutrient interactions. METHODS A case-control study was conducted to analyze four genetic polymorphisms i.e. thymidylate synthase (TYMS) 5'-UTR 28 bp tandem repeat, MTHFR C677T, methyltetrahydrofolate homocysteine methyltransferase (MTR) A2756G, methyltetrahydrofolate homocysteine methyltransferase reductase (MTRR) A66G using PCR-AFLP and PCR-RFLP methods; plasma folate and B12 using AxSYM kits; plasma homocysteine by reverse phase HPLC and nitric oxide using Griess reaction. Fisher's exact test, logistic regression analysis and multifactor dimensionality reduction analysis were used for statistical analysis of genetic parameters. Student's t-test was used for biochemical parameters. RESULTS MTHFR C677T and MTRR A66G were found to increase the risk for CAD by 1.61-fold (95% CI: 1.04-2.50) and 1.92-fold (95% CI: 1.29-2.87) whereas TYMS 2R allele was found to reduce the risk for CAD (OR: 0.66, 95% CI: 0.49-0.88) by counteracting MTHFR and MTRR variant alleles. Significant gene-gene interactions were observed among TYMS/MTRR (P < 0.0001), MTR/TYMS/MTRR (P < 0.0001), and MTHFR/MTR/TYMS/MTRR (P < 0.0001). MTHFR was found to increase the risk (OR: 2.36, 95% CI: 1.28-4.37) only in the absence of the TYMS 2R allele, with marked impairment of the remethylation process (P = 0.007). This impairment was predominant when the dietary folate was in the lowest tertile. In subjects with dietary folate intake in the highest tertile, no such impairment was observed. CONCLUSION Dietary folate status and TYMS 5'-UTR 28bp tandem repeat polymorphism are important effect modifiers of CAD risk associated with genetic variants in remethylating genes.
Collapse
Affiliation(s)
- Sana Venkata Vijaya Lakshmi
- Department of Clinical Pharmacology & Therapeutics, Nizam's Institute of Medical Sciences, Andhra Pradesh, India.
| | | | | | | | | |
Collapse
|
24
|
Tripathi R, Tewari S, Singh PK, Agarwal S. Association of homocysteine and methylene tetrahydrofolate reductase (MTHFR C677T) gene polymorphism with coronary artery disease (CAD) in the population of North India. Genet Mol Biol 2010; 33:224-8. [PMID: 21637473 PMCID: PMC3036870 DOI: 10.1590/s1415-47572010005000026] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Accepted: 11/17/2009] [Indexed: 01/16/2023] Open
Abstract
The implications of the methylene tetrahydrofolate reductase (MTHFR) gene and the level of homocysteine in the pathogenesis of coronary artery disease (CAD) have been extensively studied in various ethnic groups. Our aim was to discover the association of MTHFR (C677T) polymorphism and homocysteine level with CAD in north Indian subjects. The study group consisted of 329 angiographically proven CAD patients, and 331 age and sex matched healthy individuals as controls. MTHFR (C677T) gene polymorphism was detected based on the polymerase chain reaction and restriction digestion with HinfI. Total homocysteine plasma concentration was measured using immunoassay. T allele frequency was found to be significantly higher in patients than in the control group. We found significantly elevated levels of mean homocysteine in the patient group when compared to the control group (p = 0.00). Traditional risk factors such as diabetes, hypertension, smoking habits, a positive family history and lipid profiles (triglyceride, total cholesterol, HDL-cholesterol, LDL-cholesterol, VLDL-cholesterol), were found significantly associated through univariate analysis. Furthermore, multivariable logistics regression analysis revealed that CAD is significantly and variably associated with diabetes, hypertension, smoking, triglycerides and HDL-cholesterol. Our findings showed that MTHFR C677T polymorphism and homocysteine levels were associated with coronary artery disease in the selected population.
Collapse
Affiliation(s)
- Rajneesh Tripathi
- Department of Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow India
| | | | | | | |
Collapse
|
25
|
Misra UK, Kalita J, Srivastava AK, Agarwal S. MTHFR Gene Polymorphism and Its Relationship with Plasma Homocysteine and Folate in a North Indian Population. Biochem Genet 2009; 48:229-35. [DOI: 10.1007/s10528-009-9312-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Accepted: 11/03/2009] [Indexed: 10/20/2022]
|
26
|
Genetic and environmental influences on total plasma homocysteine and coronary artery disease (CAD) risk among South Indians. Clin Chim Acta 2009; 405:127-31. [PMID: 19394322 DOI: 10.1016/j.cca.2009.04.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 04/19/2009] [Accepted: 04/21/2009] [Indexed: 11/23/2022]
Abstract
BACKGROUND Hyperhomocysteinemia, a documented risk factor for CAD is highly prevalent in Indians. The rationale behind the current study is to explore the genetic and environmental causes for such high prevalence as there are limited studies in this context. METHODS A total of 108 CAD cases and 108 controls were analyzed for tHcy and 4 folate pathway genetic polymorphisms [methylene tetrahydrofolate reductase (MTHFR) C677T, 5-methyltetrahydrofolate homocysteine methyl transferase (MTR) A2756G, methionine synthase reductase (MTRR) A66G and glutamate carboxypeptidase II (GCPII) C1561T] using reverse phase HPLC and PCR-RFLP methods respectively. RESULTS MTHFR 677T, MTRR 66A, GCPII 1561T, male gender, alcohol intake, smoking, diabetes, creatinine and hypertension were found to influence tHcy. After controlling for confounding factors, Hyperhomocysteinemia and two of its genetic determinants i.e. MTHFR C677T [OR: 1.96, 95% CI: 1.06-3.61] and GCP II C1561T [OR: 2.09, 95% CI: 1.09-3.97] were found to be associated with risk for CAD. Significant epistatic interactions were observed between MTHFR 677T/MTR 2756G and GCP II 1561T/MTRR 66G. Alcohol intake in subjects with MTR 2756G allele was found to inflate the risk for CAD [OR: 4.15, 95% CI: 1.35-12.69]. CONCLUSION Hyperhomocysteinemia, C677T MTHFR and C1561T GCPII are risk factors for CAD. Potential gene--gene and gene--environment interactions indicate the need for multi-variate analyses for risk prediction.
Collapse
|
27
|
Affiliation(s)
- M. Julia Brosnan
- From the Center for Metabolic Disease, Ordway Research Institute, Albany, NY
| |
Collapse
|
28
|
Freitas AI, Mendonça I, Guerra G, Brión M, Reis RP, Carracedo A, Brehm A. Methylenetetrahydrofolate reductase gene, homocysteine and coronary artery disease: The A1298C polymorphism does matter. Inferences from a case study (Madeira, Portugal). Thromb Res 2008; 122:648-56. [DOI: 10.1016/j.thromres.2008.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2007] [Revised: 01/23/2008] [Accepted: 02/05/2008] [Indexed: 11/16/2022]
|