Molecular docking analysis of the interaction between metformin/glimepiride combination and organic cation

Haneen A Mohammed1, Ekhlass M Taha1, Amaal S Sadiq1

  • 1DEPARTMENT OF CHEMISTRY, COLLEGE OF SCIENCE FOR WOMEN, UNIVERSITY OF BAGHDAD, BAGHDAD, IRAQ.

Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|July 31, 2026
PubMed
Abstract

Insights

Glimepiride/metformin effectively binds to organic cation transporter 1 (OCT-1), demonstrating its potential for managing type 2 diabetes and controlling blood glucose levels.

Area of Science:

  • Pharmacology
  • Biochemistry
  • Molecular Biology

Background:

  • Organic cation transporter 1 (OCT-1) plays a role in drug transport and glucose metabolism.
  • Understanding drug-transporter interactions is crucial for optimizing therapeutic efficacy.

Purpose of the Study:

  • To investigate the interaction between glimepiride/metformin and OCT-1 using molecular docking.
  • To compare serum OCT-1 levels in type 2 diabetes patients and healthy individuals.

Main Methods:

  • Molecular docking simulations were performed to assess glimepiride/metformin binding to OCT-1.
  • Enzyme-linked immunosorbent assay (ELISA) was used to quantify serum OCT-1 levels in 50 women (26 with type 2 diabetes, 24 controls).

Main Results:

  • Molecular docking revealed a strong binding affinity (-10.2 kcal/mol) between glimepiride/metformin and OCT-1.
  • Serum OCT-1 levels were comparable between type 2 diabetes patients and healthy controls, suggesting efficient cellular uptake of the drug.

Conclusions:

  • The glimepiride/metformin combination exhibits significant interaction with OCT-1.
  • This interaction supports the use of glimepiride/metformin for effective blood glucose control in type 2 diabetes.

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