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Background <p>We did this study to better clarify the correlations of methylenetetrahydrofolate dehydrogenase 1 (MTHFD1)-<i>G1958A (rs2236225)</i> gene polymorphism with the risk of congenital heart diseases (CHD) and its subgroups.</p> Methods <p>Relevant articles were searched in PubMed, Web of Science, Cochrane Library, Embase, CNKI, VIP database and Wanfang DATA until October 2023. We will use odds ratios (ORs) and 95% confidence intervals (CIs) to examine the potential associations of MTHFD1- <i>G1958A</i> gene polymorphism with CHD and its subgroups.</p> Results <p>We included a total of 9 eligible studies, encompassing 1917 children with CHD, 1863 healthy children, 1717 mothers of the children with CHD and 1666 mothers of healthy children. In our study, the meta-analysis of fetal group revealed no significant association between any of the five genetic models for the MTHFD1-<i>G1958A</i> polymorphism and the risk of CHD. Subgroup analysis showed that associations between the MTHFD1-<i>G1958A</i> polymorphism and Tetralogy of Fallot (TOF) risk in the homozygote model (<i>AA</i> vs. <i>GG</i>, OR = 2.82, 95%CI [1.16, 6.86], <i>P</i> = 0.02) and recessive model (<i>AA</i> vs. <i>GG + GA</i>, OR = 3.09, 95%CI [1.36, 7.03], <i>P</i> = 0.007). In addition, the MTHFD1-<i>G1958A</i> polymorphism was associated with the risk of CHD in racial subgroup, increasing the risk of CHD in Caucasians. In maternal analysis, 2 genetic models of MTHFD1-<i>G1958A</i> polymorphism increased the risk of CHD: the heterozygote model (<i>GA</i> vs. <i>GG</i>, OR = 1.22, 95%CI [1.04, 1.42], <i>P</i> = 0.01), and the dominance model (<i>GA + AA vs. GG</i>, OR = 1.17, 95%CI [1.01, 1.34], <i>P</i> = 0.03).</p> Conclusions <p>The fetal MTHFD1-<i>G1958A (rs2236225)</i> gene polymorphism increase their risk of TOF. The maternal MTHFD1-<i>G1958A</i> polymorphism has a strong correlation with the risk of CHD, and there are racial differences in this correlation. Compared with <i>GG</i> genotype, the <i>GA</i> genotype increases the risk of CHD.</p>

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Association of MTHFD1 G1958A (rs2236225) gene polymorphism with the risk of congenital heart disease: a systematic review and meta-analysis

  • 期刊论文

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  • 发表日期：

    2025年1月27日

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  • Kang Yi,
  • Shao-E He,
  • Tao Guo,
  • Zi-Qiang Wang,
  • Xin Zhang,
  • Jian-Guo Xu,
  • Hao-Yue Zhang,
  • Wei-Guo Liu,
  • Tao You

摘要

Background

We did this study to better clarify the correlations of methylenetetrahydrofolate dehydrogenase 1 (MTHFD1)-G1958A (rs2236225) gene polymorphism with the risk of congenital heart diseases (CHD) and its subgroups.

Methods

Relevant articles were searched in PubMed, Web of Science, Cochrane Library, Embase, CNKI, VIP database and Wanfang DATA until October 2023. We will use odds ratios (ORs) and 95% confidence intervals (CIs) to examine the potential associations of MTHFD1- G1958A gene polymorphism with CHD and its subgroups.

Results

We included a total of 9 eligible studies, encompassing 1917 children with CHD, 1863 healthy children, 1717 mothers of the children with CHD and 1666 mothers of healthy children. In our study, the meta-analysis of fetal group revealed no significant association between any of the five genetic models for the MTHFD1-G1958A polymorphism and the risk of CHD. Subgroup analysis showed that associations between the MTHFD1-G1958A polymorphism and Tetralogy of Fallot (TOF) risk in the homozygote model (AA vs. GG, OR = 2.82, 95%CI [1.16, 6.86], P = 0.02) and recessive model (AA vs. GG + GA, OR = 3.09, 95%CI [1.36, 7.03], P = 0.007). In addition, the MTHFD1-G1958A polymorphism was associated with the risk of CHD in racial subgroup, increasing the risk of CHD in Caucasians. In maternal analysis, 2 genetic models of MTHFD1-G1958A polymorphism increased the risk of CHD: the heterozygote model (GA vs. GG, OR = 1.22, 95%CI [1.04, 1.42], P = 0.01), and the dominance model (GA + AA vs. GG, OR = 1.17, 95%CI [1.01, 1.34], P = 0.03).

Conclusions

The fetal MTHFD1-G1958A (rs2236225) gene polymorphism increase their risk of TOF. The maternal MTHFD1-G1958A polymorphism has a strong correlation with the risk of CHD, and there are racial differences in this correlation. Compared with GG genotype, the GA genotype increases the risk of CHD.