scholarly journals C677T Polymorphism in the MTHFR Gene Is Associated With Risperidone-Induced Weight Gain in Schizophrenia

2020 ◽  
Vol 11 ◽  
Author(s):  
Jingping Liao ◽  
Ning Wang ◽  
Mengying Ma ◽  
Tianlan Lu ◽  
Hao Yan ◽  
...  
Keyword(s):  
Weight Gain ◽  
Mthfr Gene ◽  
C677t Polymorphism

IDENTIFYING THE C677T POLYMORPHISM OF MTHFR GENE BY PCR-RFLP TECHNIQUE

2011 ◽  
pp. 28-35
Author(s):  
Keyword(s):  
Internal Control ◽  
Restriction Site ◽  
Mthfr Gene ◽  
C677t Polymorphism ◽  
Mthfr Genotype ◽  
Restriction Digest ◽  
Genotype Frequencies ◽  
Pcr Rflp ◽  
Sequencing Technique ◽  
Volunteer Group

Background: The C677T polymorphism of MTHFR gene is a risk factor of many diseases. This study is aimed at: (1) Improving a PCR-RFLP process with the own designed primers to identify the C677T polymorphism of MTHFR gene. (2) Evaluating the prevalence of the C677T polymorphism of MTHFR gene in volunteer group. Materials and method: DNA samples was extracted from peripheral blood of 60 volunteers. Designing primers by using FastPCR software, then improving PCR technique. Standardizing the optimal conditions of restriction digest by HinfI. Confirming the results of polymorphism by DNA sequencing technique. Results: We designed successfully primers to amplify fragment of MTHFR gene including C677T polymorphism and an obligatory restriction site of HinfI (as internal control). 0.5 µl of HinfI enzyme (10 U/µl) is enough for restriction digest. The MTHFR genotype frequencies were: 71.67 % (677CC); 25% (677CT); and 3.33 % (677TT). Conclusion: We standardized successfully PCR-RFLP technique to identifying C677T polymorphism of MTHFR gene. Keywords: C677T polymorphism, MTHFR gene, PCR-RFLP

scholarly journals Association of C677T Polymorphism in MTHFR Gene, High Homocysteine and Low HDL Cholesterol Plasma Values in Heterozygous Familial Hypercholesterolemia

2009 ◽  
Vol 16 (6) ◽  
pp. 815-820 ◽  
Author(s):  
Jose T Real ◽  
Sergio Martinez-Hervas ◽  
Ana Barbara Garcia-Garcia ◽  
F Javier Chaves ◽  
Miguel Civera ◽  
...  
Keyword(s):  
Familial Hypercholesterolemia ◽  
Hdl Cholesterol ◽  
Mthfr Gene ◽  
C677t Polymorphism ◽  
Heterozygous Familial Hypercholesterolemia ◽  
Low Hdl

scholarly journals A Genetic Association Study of MTHFR C677T Polymorphism with Risk of Metabolic Syndrome: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 8 ◽  
pp. e1472
Author(s):  
Soheil Azizi ◽  
Amir Shamshirian ◽  
Reza Alizadeh-Navaei ◽  
Hamed Jafarpour ◽  
Zatollah Asemi ◽  
...  
Keyword(s):  
Systematic Review ◽  
Metabolic Syndrome ◽  
Meta Analysis ◽  
Mthfr Gene ◽  
Cochrane Library ◽  
Control Group ◽  
C677t Polymorphism ◽  
Mthfr C677t Polymorphism ◽  
Mthfr Gene Polymorphism ◽  
Allele Model

Methylenetetrahydrofolate reductase (MTHFR) is an enzyme that plays a crucial role as a methyl-group donor in demethylation of homocysteine. The aim of this systematic review and meta-analysis was to study the relationship between MTHFR gene polymorphism and metabolic syndrome (MS). We used search engines and databases such as Science Direct, Google Scholar, Embase, Cochrane Library, and PubMed to identify eligible studies up to 2018. The articles were studied based on keywords including MTHFR, mutation, variant, and polymorphism in combination with MS. Data was analyzed using Comprehensive Meta-Analysis version 2.2.064 software. After extracting the data from seven articles, the total number of subjects was 1280 in the patient group and 1374 in the control group. The odds ratio was estimated to be 1.078 for the allele model of T vs. C (95% confidence interval [CI]: 1.626-0.715), 1.157 for the allele model of CC vs. CT (95% CI: 0.829-1.615), 1.020 for the allele model of CT + TT vs. CC (95% CI: 1.611-0.646) and 0.799 for the allele model of TT vs. CC + CT (95% CI: 1.185-0.539). As well, the results showed no statistically significant correlation between polymorphism genotypes of the MTHFR gene and MS (P<0.05). In general, this study showed that the presence of C677T polymorphism in the MTHFR gene has no effect on the incidence of MS. [GMJ.2019;8:e1472]

scholarly journals Methylenetetrahydrofolate (MTHFR), the One-Carbon Cycle, and Cardiovascular Risks

Nutrients ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 4562
Author(s):  
Shanel Raghubeer ◽  
Tandi E. Matsha
Keyword(s):  
Carbon Cycle ◽  
Methylenetetrahydrofolate Reductase ◽  
Mthfr Gene ◽  
C677t Polymorphism ◽  
Cardiovascular Risks ◽  
Mthfr Polymorphism ◽  
Dna And Rna ◽  
Inflammatory Conditions ◽  
Increased Risk ◽  
The One

The 5-10-methylenetetrahydrofolate reductase (MTHFR) enzyme is vital for cellular homeostasis due to its key functions in the one-carbon cycle, which include methionine and folate metabolism and protein, DNA, and RNA synthesis. The enzyme is responsible for maintaining methionine and homocysteine (Hcy) balance to prevent cellular dysfunction. Polymorphisms in the MTHFR gene, especially C677T, have been associated with various diseases, including cardiovascular diseases (CVDs), cancer, inflammatory conditions, diabetes, and vascular disorders. The C677T MTHFR polymorphism is thought to be the most common cause of elevated Hcy levels, which is considered an independent risk factor for CVD. This polymorphism results in an amino acid change from alanine to valine, which prevents optimal functioning of the enzyme at temperatures above 37 °C. Many studies have been conducted to determine whether there is an association between the C677T polymorphism and increased risk for CVD. There is much evidence in favour of this association, while several studies have concluded that the polymorphism cannot be used to predict CVD development or progression. This review discusses current research regarding the C677T polymorphism and its relationship with CVD, inflammation, diabetes, and epigenetic regulation and compares the evidence provided for and against the association with CVD.

scholarly journals Plasma Homocysteine Level And C677T Polymorphism In MTHFR Gene In Patients With Acute Coronary Syndrome

2015 ◽  
Vol 8 (1) ◽  
pp. 46-51
Author(s):  
Andrey V. Grek ◽  
Lyudmyla N. Prystupa ◽  
Tatiana V. Sytnik
Keyword(s):  
Acute Coronary Syndrome ◽  
Endothelial Dysfunction ◽  
Homocysteine Level ◽  
Mthfr C677t ◽  
Mthfr Gene ◽  
Control Group ◽  
C677t Polymorphism ◽  
Mthfr Polymorphism ◽  
Mthfr C677t Polymorphism ◽  
Coronary Syndrome

SummaryCardiovascular diseases (CVD) of atherosclerotic origin and accompanying complications are a major cause of mortality in the world and Ukraine, in particular. Endothelial dysfunction is the key cause of atherosclerosis and atherothrombosis. One of the causes of endothelial dysfunction is hyperhomocysteinemia that may occur on the background of MTHFR (methylenetetrahydrofolate reductase) mutation.Thus, the goal of the study was to investigate the interrelation between homocysteine (Hc) level and MTHFR polymorphism in patients with acute coronary syndrome (ACS).161 patients with ischemic heart disease and ACS have been examined. The control group comprised 87 healthy individuals. Homocysteine level was the highest in the patients having ACS with ST-segment elevation and complicated course, and was 1.8 times higher than Hc level in the control group. The patients with the most severe ACS course comprised 27 % of homozygotes for the major allele C and 41 % of homozygotes for the minor allele T. Comparing the distribution of MTHFR gene C677T polymorphism in patients with ACS that were stratified by plasma Hc level, we observed a statistically significant association, P < 0.030 by chi-square test. We confirmed that these patients had a high T/T genotype frequency of MTHFR C677T polymorphism. The obtained data proved the association of T/T genotype of MTHFR C677T polymorphism with increased Hc level as well as ACS severity.

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