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Implication of critical pharmacokinetic gene variants on therapeutic response to metformin in Type 2 diabetes
Nagaraja M Phani1, Manik Vohra1, Ananth Kakar1
1Department of Biotechnology, School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
Aim:
Metformin, an oral hypoglycemic drug is the first line of treatment for Type 2 diabetes individuals. We studied the effect of critical gene single nucleotide polymorphisms on the glucose lowering effect of metformin.
Method:
We performed a prospective study on 221 newly diagnosed, treatment-naive Type 2 diabetes subjects. Individuals were started with metformin monotherapy and followed up for 12 weeks.
Results:
Our association analysis revealed that SLC22A2 rs316019 and SLC47A2 rs12943590 were significantly associated with metformin drug response across co-dominant and dominant models, respectively. SLC22A2 rs316019 GG and SLC47A2 rs12943590 GA combined genotypes showed maximum average change in HbA1c level.
Conclusion:
The present study proposes a role of SLC22A2 rs316019 and SLC47A2 rs12943590 in the pharmacokinetic action of metformin.
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