Background: Homocysteine, a key component in one-carbon metabolism, is of great importance in remethylation. Many epidemiologic studies have assessed the association between homocysteine and risk of digestive tract cancer, but the results are inconsistent.
Objective: The objective of our meta-analysis is to assess the association between homocysteine and digestive tract cancer risk.
Methods: Comprehensive searches were performed on the PubMed, Embase, Cochrane, and Web of Science databases up to September 25, 2018, to identify relevant studies. Thirteen studies were included in the meta-analysis. Odds ratios (ORs) and their corresponding 95% confidence intervals (95% CIs) were used to estimate the strength of the relationship between homocysteine and the risk of digestive tract cancer.
Results: The pooled OR of digestive tract cancer risk for patients with the highest categories of blood homocysteine levels versus the lowest categories was 1.27 (95% CI, 1.15, 1.39) with no significant heterogeneity observed ( = 0.798, = 0.0%). Moreover, the dose-response analysis revealed that each 5mol/L increase in homocysteine increased the incidence of digestive tract cancer by 7%.
Conclusion: Generally, our results indicated that elevated homocysteine was associated with higher risk of digestive tract cancer. That is, homocysteine concentration may be a potential biomarker for occurrence of digestive tract cancer.
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| http://dx.doi.org/10.1155/2018/3720684 | DOI Listing |
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