MTHFR C677T, Prothrombin G20210A, and Factor V Leiden (G1691A) Polymorphism and Beta-Thalassemia Risk: A Meta-Analysis

Abstract

Background Beta (β)-thalassemia major patients frequently suffer from many vascular problems. Thrombophilia is a blood disorder that comprises imbalances in the blood coagulating factor due to ecological and hereditary components. Previous evidence shows that thrombosis is the commonest risk in beta-thalassemia patients. Several studies have examined that MTHFR C677T, prothrombin G20210A (PT G20210A), and Factor V Leiden G1691A (FVL G1691A) polymorphism play a crucial role in the development of β-thalassemia major, yet the result was questionable and uncertain. Therefore, in this study, we executed the correlation between these gene polymorphisms with β-thalassemia major patients. Methods Suitable keywords were used to search related articles in PubMed, Google Scholar, and Web of Science. In this random-effects meta-analysis, we analyzed the odds ratio (OR) for the estimation of risk. Results A total of nine research articles with 645 β-thalassemia major patients and 989 healthy controls were incorporated in this meta-analysis. The pooled OR was assessed in MTHFR C677T, PT G20210A, and FVL G1691A polymorphism. This random-effects meta-analysis demonstrated that MTHFR C677T, PT G20210A, and FVL G1691A gene polymorphism did not significantly associate with β-thalassemia major. Moreover, the heterogeneity was significantly found in genotype CC vs CT+TT C677T (I 2 =61%) and allele C vs T (I 2 =71%) of MTHFR and genotype GG vs GA (I 2 =95%), GG vs GA+AA (I 2 =95%), GA vs GG+AA (I 2 =95%), and allele G vs A (I 2 =93%) of FVL G1691A. Conclusion The results of this meta-analysis show that MTHFR C677T, prothrombin G20210A, and Factor V Leiden (G1691A) gene polymorphism are not a risk factor for β-thalassemia major.

The Relevance of β-Thalassemia Heterozygosity in Pediatric Clinical Practice: Croatian Experience

“…Furthermore, genetic predisposition to osteoporosis (VDR, COLIAI, COLIA2, and TGFB1 gene variants) can affect thalassemia trait complications. An increased risk of thrombosis related to Factor II, Factor V and MTHFR gene variants and cardiac complications related to GSTM1 haplotype, ApoE ε4 allele and some HLA haplotypes, have been reported in patient with thalassemia major [38][39][40] (pp. 339-344).…”