Title : Associations between metformin use and vitamin B12 levels, anemia, and neuropathy in patients with diabetes: a meta-analysis.

Pub. Date : 2019 Sep

PMID : 30615306






8 Functional Relationships(s)
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1 Associations between metformin use and vitamin B12 levels, anemia, and neuropathy in patients with diabetes: a meta-analysis. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
2 This meta-analyses reviewed all available studies on associations between metformin use and vitamin B12 levels, anemia, and neuropathy in diabetic patients. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
3 Compared with diabetic patients not taking metformin, patients taking metformin had a significantly higher risk of vitamin B12 deficiency (RR 2.09; 95% CI 1.49, 2.93; P < 0.0001; I2 = 64%) and significantly lower serum vitamin B12 concentrations (MD -63.70; 95% CI -74.35, -53.05] pM; P < 0.00001; I2 = 87%), which depended on dose and duration of treatment. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
4 Compared with diabetic patients not taking metformin, patients taking metformin had a significantly higher risk of vitamin B12 deficiency (RR 2.09; 95% CI 1.49, 2.93; P < 0.0001; I2 = 64%) and significantly lower serum vitamin B12 concentrations (MD -63.70; 95% CI -74.35, -53.05] pM; P < 0.00001; I2 = 87%), which depended on dose and duration of treatment. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
5 Metformin use was also associated with significantly greater percentage decrease in serum vitamin B12 concentrations from baseline in diabetic patients (MD -14.68%; 95% CI -17.98%, -11.39%; P < 0.00001; I2 = 33%). Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
6 CONCLUSIONS: Metformin use led to significantly lowered vitamin B12 concentrations and significantly higher risk of vitamin B12 deficiency in diabetic patients. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
7 CONCLUSIONS: Metformin use led to significantly lowered vitamin B12 concentrations and significantly higher risk of vitamin B12 deficiency in diabetic patients. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens
8 Annual vitamin B12 assessment in diabetic patients taking metformin is recommended. Metformin NADH:ubiquinone oxidoreductase subunit B3 Homo sapiens