scholarly journals No association of the MTHFR gene A1298C polymorphism with the risk of prostate cancer: A meta-analysis

2012 ◽  
Vol 3 (3) ◽  
pp. 493-498 ◽  
Author(s):  
DAWEI LI ◽  
TIAN TIAN ◽  
CHUNHUI GUO ◽  
JUCHAO REN ◽  
LEI YAN ◽  
...  
2019 ◽  
Author(s):  
Vandana Rai

AbstractMethylenetetrahydrofolate reductase (MTHFR) is a crucial enzyme involved in homocysteine/methionone metabolism. It catalyzes the conversion of 5,10methlenetetrahydrofolate in to 5methyltetrahydrofolate. A number of studies have examined the association of MTHFR A1298C polymorphism as risk factor for Alzheimer’s disease (AD), but the results were contradictory. To clarify the influence of MTHFR A1298C polymorphism on Alzheimer’s disease (AD), a meta-analysis of ten case-control studies was carried out. Four electronic databases were searched up to August, 2019 for suitable articles. The pooled odds ratios (ORs) with 95% confidence intervals (95% CIs) were used to evaluate the association. All statistical analyses were performed by MetaAnalyst program.The results of meta-analysis suggested that except allele contrast model, A1298C polymorphism is not risk for Alzheimer’s disease using overall comparisons in three genetic models (C vs. A: OR= 1.26, 95%CI= 0.912-1.76, p= 0.04; CC+AC vs. AA: OR= 1.43; 95%CI= 0.85-2.44; p=0.05; CC vs. AA: OR= 1.16, 95%CI= .88-1.55, p= 0.51; AC vs. AA: 1.55; 95%CI= 0.81-2.93,p=0.07). Publication bias was absent in all five genetic models. In conclusion, results of present meta-analysis showed no significant association between MTHFR A1298C polymorphism and AD risk.


2019 ◽  
Author(s):  
Vandana Rai

AbstractRecent epidemiological studies have reported association between methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms and lung cancer. The aim of the present study to perform a meta-analysis of published studies to validate the association between MTHFR A1298C polymorphism and risk of lung cancer.PubMed, Springer Link, Science Direct and Google Scholar databases were searched for eligible studies. Of the 78 initially identified studies, 11 case–control studies with 5,996 patients and 7,404 healthy controls were finally included in the present meta-analysis. Odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to assess the association, and all statistical analyses were performed using MIX software (version 1.7).No statistically significant associations were found between the MTHFR A1298C polymorphism and lung cancer risk in the additive/ allele contrast, co-dominant/heterozygote, homozygote, dominant and recessive genetic models (C vs. A: OR= 0.95, 95% CI= 0.83-1.08; CC vs. AA: OR= 1.13, 95% CI= 0.83-1.5; AC vs. AA: OR= 0.86, 95% CI= 0.70-1.02; AC+CC vs. AA: OR= 0.89, 95% CI= 0.75-1.05; CC vs. AA+AC: OR= 1.20, 95% CI= 0.89-1.40). Significant heterogeneity between individual studies was evident in all five models. In conclusion, present meta-analysis results indicated that there is no significant association between MTHFR A1298C polymorphism and risk of lung cancer.


2014 ◽  
Vol 38 (6) ◽  
pp. 425-432 ◽  
Author(s):  
Ming-Jie Zhang ◽  
Zi-Cheng Hu ◽  
Yan-Wei Yin ◽  
Bing-Hu Li ◽  
Yun Liu ◽  
...  

2015 ◽  
Vol 14 (4) ◽  
pp. 19191-19202 ◽  
Author(s):  
P.L. Chen ◽  
W.T. Li ◽  
J. Wang ◽  
Y.D. Jiang ◽  
P. Wu ◽  
...  

2014 ◽  
Vol 6 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Vandana Rai

Objective: Methyleneterahydrofolate reductase (MTHFR) A1298C polymorphism has been reported a risk factor for nonsyndromic cleft/palate (NSCL/P) in several published articles but results were inconclusive. To confirm the association between maternal MTHFR A1298C polymorphism and NSCL/P risk, a meta-analysis was conducted. Method: Case control articles for maternal MTHFR A1298C polymorphism and NSCL/P risk were identified by search of databases including PubMed, Google Scholar, Elsevier and Springer Link for the period up to December, 2013. Odds ratios (ORs) with 95% confidence intervals (CIs) were estimated to assess the association. Results: Meta-analysis of ten included studies showed that there was no significant association between maternal MTHFR A1298C polymorphism and risk of NSCL/P under five genetic models (for C versus A, OR= 1.007, 95 % CI= 0.89-1.13, P=0.90; for CC versus AA, OR=0.851, 95 % CI = 0.63-1.15, P=0.30.; for AC versus AA, OR= 1.033, 95 % CI= 0.88-1.21, P= 0.69; for CC+AC versus AA, OR= 1.005, 95 % CI= 0.86-1.17, P=0.94; for CC versus AC+AA, OR= 0.86, 95 % CI= 0.64-1.15, P= 0.32). Conclusion: In conclusion, results of present meta-analysis demonstrate that maternal MTHFR A1298C polymorphism may not be a risk factor for developing NSCL/P in offspring. Further studies with large sample sizes are needed to evaluate the association of maternal MTHFR A1298C polymorphism with NSCL/P in more detail. DOI: http://dx.doi.org/10.3126/ajms.v6i1.10281 Asian Journal of Medical Sciences Vol.6(1) 2015 16-21


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