Association of MTHFR 677C>T polymorphism with breast cancer risk: A case-control study and meta-analysis.
J Cancer Res Ther
; 18(6): 1451-1460, 2022.
Article
em En
| MEDLINE
| ID: mdl-36412394
ABSTRACT
Background and Objectives:
Breast cancer is a complex, multifactorial disease that arises as a result of interactions between multiple genes and environmental factors. Methylenetetrahydrofolate reductase (MTHFR) is a low susceptibility gene, involved in folate metabolism. It assists in conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate which further leads to DNA methylation. 5,10-methylenetetrahydrofolate assists in conversion of uracil to thymine and purine synthesis for DNA synthesis. MTHFR 677C>T polymorphism alters the activity of MTHFR enzyme potentially effecting DNA repair and synthesis, hence a potential risk for cancer like breast cancer. Hence, the present study was conducted to evaluate association of MTHFR 677C>T polymorphism and breast cancer in Punjabi population. Moreover, a meta-analysis was conducted to address the same. Materials andMethods:
A total of 247 breast cancer patients and 247 controls were selected from Punjabi population for analysis using PCR-RFLP method. For meta-analysis, 67 studies were selected, and allele contrast, homozygous, heterozygous, dominant, and recessive models were used to evaluate the association between MTHFR 677C>T and breast cancer.Results:
The frequencies of CC, CT, and TT genotype were 68.4% versus 74.5%, 28.7% versus 23.5%, and 2.9% versus 2.0% in patients and controls, respectively. There was no significant difference found. In meta-analysis, significant association was found in overall and Asian population while no significant association was found in Caucasians. Interpretation andConclusions:
MTHFR 677C>T polymorphism is not a risk factor for breast cancer in Punjabi population. Inconsistency with the meta-analysis can be due to ethnic diversity.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
/
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Metilenotetra-Hidrofolato Redutase (NADPH2)
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Systematic_reviews
Limite:
Female
/
Humans
Idioma:
En
Revista:
J Cancer Res Ther
Ano de publicação:
2022
Tipo de documento:
Article