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Chiu MH, Chang CH, Tantoh DM, Hsu TW, Hsiao CH, Zhong JH, Liaw YP. Susceptibility to hypertension based on MTHFR rs1801133 single nucleotide polymorphism and MTHFR promoter methylation. Front Cardiovasc Med 2023; 10:1159764. [PMID: 37849939 PMCID: PMC10577234 DOI: 10.3389/fcvm.2023.1159764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 09/11/2023] [Indexed: 10/19/2023] Open
Abstract
Background The aetio-pathologenesis of hypertension is multifactorial, encompassing genetic, epigenetic, and environmental factors. The combined effect of genetic and epigenetic changes on hypertension is not known. We evaluated the independent and interactive association of MTHFR rs1801133 single nucleotide polymorphism (SNP) and MTHFR promoter methylation with hypertension among Taiwanese adults. Methods We retrieved data including, MTHFR promoter methylation, MTHFR rs1801133 genotypes (CC, CT, and TT), basic demography, personal lifestyle habits, and disease history of 1,238 individuals from the Taiwan Biobank (TWB). Results The distributions of hypertension and MTHFR promoter methylation quartiles (β < 0.1338, 0.1338 ≤ β < 0.1385, 0.1385 ≤ β < 0.1423, and β ≥ 0.1423 corresponding to Conclusion Independently, rs1801133 TT was associated with a higher risk of hypertension, but methylation was not. Based on genotypes, lower methylation was dose-dependently associated with a higher risk of hypertension in individuals with the CC genotype. Our findings suggest that MTHFR rs1801133 and MTHFR promoter methylation could jointly influence hypertension susceptibility.
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Affiliation(s)
- Ming-Huang Chiu
- Department of Pulmonology and Respiratory Care, Cathay General Hospital, Taipei City, Taiwan
| | - Chia-Hsiu Chang
- Cardiovascular Center, Cathay General Hospital, Taipei City, Taiwan
| | - Disline Manli Tantoh
- Department of Medical Imaging, Chung Shan Medical University Hospital, Taichung City, Taiwan
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City, Taiwan
| | - Tsui-Wen Hsu
- Superintendent Office, Institute of Medicine, Cathay General Hospital, Taipei City, Taiwan
| | - Chih-Hsuan Hsiao
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City, Taiwan
| | - Ji-Han Zhong
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City, Taiwan
| | - Yung-Po Liaw
- Department of Medical Imaging, Chung Shan Medical University Hospital, Taichung City, Taiwan
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung City, Taiwan
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2
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Hassan MH, Raslan MA, Tharwat M, Sakhr HM, El-Khateeb EES, Sakr SF, Ameen HH, Hamdan AR. Metabolic Analysis of Methylenetetrahydrofolate Reductase Single Nucleotide Polymorphisms (MTHFR 677C<T and MTHFR 1298A<C), Serum Folate and Vitamin B12 in Neural Tube Defects. Indian J Clin Biochem 2023; 38:305-315. [PMID: 37234187 PMCID: PMC10205924 DOI: 10.1007/s12291-022-01049-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/17/2022] [Indexed: 10/18/2022]
Abstract
Neural tube defects (NTDs) are among the most prevalent and debilitating birth defects with their causes are still unknown, despite mounting evidence that genetic and/or environmental factors may play a role. We aimed to analyze two single nucleotide polymorphisms of methylenetetrahydrofolate reductase (MTHFR) gene, serum folate and vitamin B12 status among a cohort of Egyptian children with NTDs and their mothers. A case-control study has been conducted on 50 Egyptian children with various types of NTDs and their mothers. They were comparable with 50 unrelated healthy, age and sex matched children and their mothers (50) selected as controls. Pediatric and neurosurgical assessments were performed to the included cases. Serum folate and vitamin B12 were measured using ELISA kits. MTHFR 677C
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Affiliation(s)
- Mohammed H. Hassan
- Department of Medical Biochemistry, Faculty of Medicine, South Valley University, Qena, 83523 Egypt
| | - Mohamed A. Raslan
- Department of Chemistry, Faculty of Science, Aswan University, Aswan, 81528 Egypt
| | - Mena Tharwat
- Department of Chemistry, Faculty of Science, Aswan University, Aswan, 81528 Egypt
| | - Hala M. Sakhr
- Department of Pediatrics, Faculty of Medicine, South Valley University, Qena, 83523 Egypt
| | | | - Shimaa Fathy Sakr
- Molecular Biology Unit, Medical Technology Center, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Hesham H. Ameen
- Department of Clinical Pathology, Faculty of Medicine, Al-Azhar University (Assiut Branch), Assiut, Egypt
| | - Ali R. Hamdan
- Department of Neurosurgery, Faculty of Medicine, South Valley University, Qena, 83523 Egypt
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3
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Al Hageh C, Alefishat E, Ghassibe-Sabbagh M, Platt DE, Hamdan H, Tcheroyan R, Chammas E, O'Sullivan S, Abchee A, Wang B, Xu X, Nader M, Zalloua P. Homocysteine levels, H-Hypertension, and the MTHFR C677T genotypes: A complex interaction. Heliyon 2023; 9:e16444. [PMID: 37274647 PMCID: PMC10238895 DOI: 10.1016/j.heliyon.2023.e16444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 04/11/2023] [Accepted: 05/16/2023] [Indexed: 06/06/2023] Open
Abstract
Background and objectives High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (MTHFR). We aimed to investigate the levels of homocysteine and their association with hypertension, stroke, and antihypertensive medication usage in patients with different MTHFR C677T genotypes. Methods and results Genotype frequency of MTHFR polymorphism was performed, and plasma homocysteine levels were measured in 2,640 adult Lebanese patients. Hypertension, history of stroke, and list of medications were documented, among other clinical and demographic parameters. The TT mutant genotype and the T mutant allele of MTHFR were more prevalent in hyperhomocysteinemia (HHcy) and H-hypertensive (H-HTN, defined as hypertension with hyperhomocysteinemia) patients when compared to non-HHcy subjects and non H-HTN patients respectively. Homocysteine levels were significantly higher in hypertensive patients specifically among those on diuretics. A higher level of homocysteine was found in hypertensive patients with the MTHFR T allele compared to patients carrying the C allele. Among the T allele carriers, the average plasma homocysteine level was 13.3 ± 0.193 μmol/L for hypertensive subjects compared to 11.9 ± 0.173 μmol/L (non-hypertensives). Furthermore, homocysteine levels significantly correlated with stroke risk in patients with the T alleles. Conclusions We found an association of homocysteine with hypertension, hypertensive medication, and stroke risk among patients with the MTHFR T allele and the TT genotype. The association of diuretics therapy with higher homocysteine levels calls for routine measurements and therapeutic control of homocysteine in patients on diuretic, to improve health-related outcomes.
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Affiliation(s)
- Cynthia Al Hageh
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Eman Alefishat
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan
- Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | | | - Daniel E. Platt
- Computational Biology Center, IBM TJ Watson Research Centre, Yorktown Hgts, NY, USA
| | - Hamdan Hamdan
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Raya Tcheroyan
- School of Medicine, American University of Beirut, Beirut, Lebanon
| | - Elie Chammas
- School of Medicine, Lebanese University, Beirut, Lebanon
| | - Siobhán O'Sullivan
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Antoine Abchee
- Sheikh Shakhbout Medical City, Abu Dhabi, United Arab Emirates
| | - Binyan Wang
- Shenzhen Evergreen Medical Institute, Shenzhen, China
| | - Xiping Xu
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, College of Food Sciences and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Moni Nader
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Pierre Zalloua
- College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Zhang Q, Lin J, Zhang Z, Han L, Huang Q, Zhu J, Wang B, Fang X, Zheng Z, Yawalkar N, Liang J, Yan K. MTHFR Polymorphism and Folic Acid Supplementation Influence Serum Homocysteine Levels in Psoriatic Patients Treated with Methotrexate. J Clin Med 2022; 11:jcm11154580. [PMID: 35956194 PMCID: PMC9369514 DOI: 10.3390/jcm11154580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/03/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Hyperhomocysteinemia has been reported in psoriasis. We investigated the effect of methylenetetrahydrofolate reductase (MTHFR), polymorphism and folic acid supplementation on serum homocysteine levels in psoriasis. Methods: Serum homocysteine levels were detected at baseline and at week 12 in 201 patients who were genotyped with MTHFR rs1801133 without and 93 psoriatic patients with folate supplement. Results: TT genotype carriers of MTHFR rs1801133 had significantly higher serum homocysteine levels at baseline and at week 12, a better PASI 75 response rate at week 8, and a higher PASI 90 response rate at week 12 than the CT and CC genotype carriers. Multiple regression analysis demonstrated that serum homocysteine concentration at baseline was significantly associated with sex, weight, PASI score at baseline, and the rs1801133 genotype. The significant upregulation of serum homocysteine levels after treatment with methotrexate (MTX) was only observed in male CT and CC genotype carriers and female CC genotype carriers. In contrast, folic acid supplementation significantly decreased serum homocysteine levels after MTX treatment but only in male psoriatic patients. Conclusions: The effect of MTX on serum homocysteine levels was associated with the polymorphism of MTHFR rs1801133 and sex. Folic acid supplementation only decreased serum homocysteine levels in male psoriatic patients.
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Affiliation(s)
- Qi Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jinran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhenghua Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Ling Han
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Qiong Huang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jie Zhu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Bing Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xu Fang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhizhong Zheng
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Nikhil Yawalkar
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Jun Liang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
- Correspondence: (J.L.); (K.Y.); Tel.: +86-13501748188 (K.Y.); Fax: +86-21-52887782 (K.Y.)
| | - Kexiang Yan
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
- Correspondence: (J.L.); (K.Y.); Tel.: +86-13501748188 (K.Y.); Fax: +86-21-52887782 (K.Y.)
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Abstract
BACKGROUND The relationship between MTHFR (5, 10-methylene tetrahydrofolate reductase) gene polymorphisms and Systemic Lupus Erythematosus (SLE) has been wildly studied, but the results are still conflicting. Therefore, the purpose of this meta and pooled analysis was to identify the role of the MTHFR SNP (single nucleotide polymorphism, rs1801133) in SLE in a large sample of subjects and to assess the risk of SLE. METHODS Data were collected from EMBASE, PubMed and China National Knowledge Infrastructure from inception to August, 2019. Summary odds ratio (OR) with 95% confidence interval (CI) was applied to assess the association. Subgroup and sensitivity analysis were performed to assess the potential sources of heterogeneity of the pooled estimation. RESULTS We identified seven eligible studies involving 882 cases and 991 controls. MTHFR rs1801133 T carrier was significantly associated with increased risk of SLE when comparing to C allele [ORs were 1.766 (1.014-3.075) for T carrier vs CC, P = .04]. Furthermore, the results of the subgroup analysis by genotyping methods suggested that T allele significantly contributed to the risk of SLE for both by polymerase chain reaction-TaqMan (PCR-TaqMan) [10.111 (2.634-38.813) for TT vs CC, 3.467 (1.324-9.078) for CT vs CC and 3.744 (1.143-12.264) for TT vs C carrier]. Also the results of the subgroup analysis by ethnicity suggested that T allele significantly contributed to the risk of SLE for Asians [9.679 (4.444-21.082) for TT vs CC, 5.866 (3.021-11.389) for T carrier vs CC and 8.052 (3.861-16.795) for TT vs C carrier]. CONCLUSION This cumulative meta-analysis showed that the MTHFR SNP (rs1801133) contributed to susceptibility of SLE. However, more multicentre well-designed case-control studies and larger sample sizes are exceedingly required to validate our findings in the future.
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Affiliation(s)
- Huang-yan Zhou
- Department of blood transfusion, Jiangxi Cancer Hospital
| | - Min Yuan
- Department of Neurology, Jiangxi provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
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Osadnik T, Pawlas N, Lejawa M, Lisik M, Osadnik K, Fronczek M, Bujak K, Gąsior M. Genetic and environmental factors associated with homocysteine concentrations in a population of healthy young adults. Analysis of the MAGNETIC study. Nutr Metab Cardiovasc Dis 2020; 30:939-947. [PMID: 32404292 DOI: 10.1016/j.numecd.2020.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Elevated homocysteine concentration is associated with a higher risk of cardiovascular disease. The aim of our study was to determine the environmental and genetic factors associated with serum homocysteine concentration in healthy young adults. Moreover, we aimed to determine the cutoff value of homocysteine concentration for predicting unfavorable MTHFR genotype and to investigate whether this association is modified by dietary patterns and serum folate status. METHODS AND RESULTS A total of 744 healthy individuals, aged 18-35 years, were included in the study. Diet quality was assessed by establishing diet quality scores and adherence to the pro-Healthy Diet Index (pHDI) and non-Healthy Diet Index (nHDI). Genotyping was performed using the TaqMan method. Multivariate analysis showed that pHDI, creatinine, folate concentrations, and the T/T genotype of the C677T polymorphism in MTHFR, as well as the interaction between the T/T genotype of MTHFR (C677T polymorphism) and folate level, were most strongly related to homocysteine concentrations. The specificity of a homocysteine >13.1 μmol/l in predicting T/T homozygous status was 76% (area under the curve 0.68). CONCLUSION Healthy dietary patterns, folate, and creatinine levels, as well as the C677T polymorphism, proved to be the strongest predictors of homocysteine concentrations. T/T genotype of MTHFR modifies the relationship between folate and homocysteine.
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Affiliation(s)
- Tadeusz Osadnik
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland; 2nd Department of Cardiology and Angiology, Silesian Centre for Heart Diseases, Zabrze, Poland.
| | - Natalia Pawlas
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland; Institute of Occupational Medicine and Environmental Health, Sosnowiec, Poland
| | - Mateusz Lejawa
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland; Kardio-Med Silesia, Zabrze, Poland
| | - Małgorzata Lisik
- Genetic Outpatient Maria Skłodowska-Curie Memorial Cancer Center, Institute of Oncology Gliwice Branch, Poland
| | - Kamila Osadnik
- Department of Pharmacology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Martyna Fronczek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland; Kardio-Med Silesia, Zabrze, Poland
| | - Kamil Bujak
- 3rd Department of Cardiology, Silesian Center for Heart Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Mariusz Gąsior
- 3rd Department of Cardiology, Silesian Center for Heart Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland
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7
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Abstract
Many published studies have evaluated the association between the 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T (rs1801133) polymorphism and the risk of congenital heart disease (CHD); however, the specific conclusion is still controversial.To get a more accurate conclusion, we used a meta-analysis to evaluate the association between the MTHFR gene C677T polymorphism and the risk of CHD.Based on the design-based search strategy, a comprehensive literature search was conducted on PubMed, OVID, Cochrane Library, Embase, Wanfang, CNKI, and Web of Science. We selected the Newcastle-Ottawa Scale (NOS) to assess the quality of the included studies. We performed a heterogeneity test on the results of the study and calculated the combined odds ratios (ORs) and its corresponding 95% confidence intervals (95% CIs) under a random- or fixed-effect model. Subgroup analyses were conducted by ethnicity, source of controls, sample size, and genotyping method. Sensitivity analysis was used to insure authenticity of this meta-analysis result. Egger's test and Begg's funnel plot were performed to detect publication bias.Eventually, our meta-analysis included 15 eligible studies. We observed a significant correlation between the MTHFR C677T polymorphism and the development of CHD in the recessive model (OR: 1.35, 95% CI: 1.06-1.71, P = 0.006) for the overall population. In subgroups stratified by ethnicity and source of controls, subgroup analyses indicated similar associations in Asians and hospital-based groups, but not for Caucasians and population-based groups. Egger's test and Begg's funnel plot demonstrated no significant publication bias in our study.Our analysis identified that MTHFR C677T allele is a risk genetic for CHD development, especially in Asians compared with Caucasians.
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Affiliation(s)
- Peng-Fei Liu
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Bing Ding
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Jun-Yi Zhang
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Xiao-Fei Mei
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Fei Li
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Peng Wu
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Chun-Hao Mei
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Ya-Feng Zhou
- Department of Cardiology, The First Affiliated Hospital of Soochow University
| | - Tan Chen
- Department of Cardiology, The First Affiliated Hospital of Soochow University
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Mazdeh M, Khazaie M, Omrani MD, Noroozi R, Komaki A, Karimi M, Taheri M, Ghafouri-Fard S. Association between methylene tetrahydrofolate reductase polymorphisms and risk of ischemic stroke. Int J Neurosci 2020; 131:44-48. [PMID: 32098547 DOI: 10.1080/00207454.2020.1733554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background: The methylene tetrahydrofolate reductase (MTHFR) is a folate-dependent enzyme which catalyzes the conversion of homocysteine to methionine. Two single nucleotide polymorphisms (SNPs) within this gene namely rs1801133 (C677T) and rs1801131 (A1298C) have been associated with elevated risk of ischemic stroke and total serum homocysteine in some populations.Aim: To assess associations between MTHFR SNPs and risk of ischemic stroke in Iranian population.Methods: In the current case-control study, we genotyped rs1801133 and rs1801131 SNPs in 318 Iranian patients with history of ischemic stroke and 400 age- and sex-matched controls using tetra-primer amplification refractory mutation system-polymerase chain reaction method.Results: The rs1801133 was significantly associated with risk of stroke in recessive model (OR (95% CI) = 1.89 (1.12-3.20), p = 0.03). The CT haplotype (rs1801131 and rs1801133, respectively) was significantly over-represented in patients compared with controls (OR (95% CI) = 1.71 (0.25-2.32), p = 0.002).Conclusion: Consequently, our data demonstrate contribution of MTHFR variants in risk of ischemic stroke in Iranian population.
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Affiliation(s)
- Mehrdokht Mazdeh
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Neurology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mojtaba Khazaie
- Department of Neurology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mir Davood Omrani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rezvan Noroozi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Masoud Karimi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taheri
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Luo Z, Lu Z, Muhammad I, Chen Y, Chen Q, Zhang J, Song Y. Associations of the MTHFR rs1801133 polymorphism with coronary artery disease and lipid levels: a systematic review and updated meta-analysis. Lipids Health Dis 2018; 17:191. [PMID: 30115070 PMCID: PMC6097444 DOI: 10.1186/s12944-018-0837-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Accepted: 07/31/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The associations of the 5,10-methylenetetrahydrofolate reductase gene (MTHFR) rs1801133 polymorphism with coronary artery disease (CAD) and plasma lipid levels have been widely investigated, but the results were inconsistent and inconclusive. This meta-analysis aimed to clarify the relationships of the rs1801133 polymorphism with CAD and plasma lipid levels. METHODS By searching in PubMed, Google Scholar, Web of Science, Cochrane Library, Wanfang, VIP and CNKI databases, 123 studies (87,020 subjects) and 65 studies (85,554 subjects) were identified for the CAD association analysis and the lipid association analysis, respectively. Odds ratio (OR) and standardized mean difference (SMD) were used to determine the effects of the rs1801133 polymorphism on CAD risk and lipid levels, respectively. RESULTS The variant T allele of the rs1801133 polymorphism was associated with increased risk of CAD under allelic model [OR = 1.11, 95% confidence interval (CI) = 1.06-1.17, P < 0.01], additive model (OR = 1.25, 95% CI = 1.14-1.37, P < 0.01), dominant model (OR = 1.11, 95% CI = 1.04-1.17, P < 0.01), and recessive model (OR = 1.22, 95% CI = 1.12-1.32, P < 0.01). The T carriers had higher levels of total cholesterol (TC) (SMD = 0.04, 95% CI = 0.01-0.07, P = 0.02) and low-density lipoprotein cholesterol (LDL-C) (SMD = 0.07, 95% CI = 0.01-0.12, P = 0.01) than the non-carriers. CONCLUSIONS The meta-analysis suggested that the T allele of the rs1801133 polymorphism is a risk factor for CAD, which is possibly and partly mediated by abnormal lipid levels.
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Affiliation(s)
- Zhi Luo
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Zhan Lu
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Irfan Muhammad
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Yun Chen
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Qiuhong Chen
- School of Clinical Medicine, North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Jiaojiao Zhang
- School of Clinical Medicine, North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Yongyan Song
- Department of Medical Biochemistry, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, 637000, People's Republic of China.
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10
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Yuan L, Song Z, Deng X, Xiong W, Yang Z, Deng H. Association of the MTHFR rs1801131 and rs1801133 variants in sporadic Parkinson's disease patients. Neurosci Lett 2016; 616:26-31. [PMID: 26806866 DOI: 10.1016/j.neulet.2016.01.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/15/2016] [Accepted: 01/18/2016] [Indexed: 01/28/2023]
Abstract
Parkinson's disease (PD) is a common age-dependent neurodegenerative movement disorder related to multiple factors, and genetic factors play an important role in the pathogenesis of PD. Variants in the methylenetetrahydrofolate reductase gene (MTHFR), a gene encoding a folate-dependent enzyme that is involved in homocysteine metabolism, have been reported to be associated with PD. To explore the role of the MTHFR gene in the development of PD in Chinese Han population, we analyzed two MTHFR variants (rs1801131 and rs1801133) in a patient cohort consisting of 512 patients with PD from mainland China and a control cohort consisting of 512 age, gender and ethnicity matched normal subjects. Statistically significant differences in genotypic and allelic frequencies were detected in the MTHFR variant rs1801133 (P=0.022 and 0.007, respectively; odds ratio=0.780, 95% confidence interval=0.651-0.934). In addition, the A-T haplotype of rs1801131-rs1801133 showed a protective role against PD development (P=0.007, odds ratio=0.779, 95% confidence interval=0.650-0.933). Our results suggested that the T allele of rs1801133 variant and A-T haplotype of rs1801131-rs1801133 in the MTHFR gene may decrease the risk of developing PD in Chinese Han population from mainland China.
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Affiliation(s)
- Lamei Yuan
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China; Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Song
- Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiong Deng
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Wei Xiong
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhijian Yang
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Deng
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China; Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China.
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