The effect of biguanide derivatives on oxidative stress in rats with hyperglycemia

Gorina E.I.1 , Popova T.N.1, Shulgin K.K.1, Popov S.S.2, Panchenko L.F.3, Safonova O.A.1

1. Voronezh State University, Voronezh, Russia
2. Burdenko Voronezh State Medical University, Voronezh, Russia
3. Research Institute of General Pathology and Pathophysiology, Moscow, Russia
Section: Experimental Study
DOI: 10.18097/PBMC20186403261      PubMed Id: 29964263
Year: 2018  Volume: 64  Issue: 3  Pages: 261-267
The effect of the synthetic biguanide derivatives N-[imino(1-piperidinyl)methyl]guanidine (NIPMG) and 1,3-dimethyl-5-[(carbamimidamidomethanimidoil) amino]benzoyl-1,3dicarboxylate (DCB) on the degree of proteins oxidative modification (POM) and the DNA fragmentation, the content of the lipid peroxidation primary products – conjugated dienes (CD), and the activity of glutathione antioxidant system in the liver and heart of rats with experimental hyperglycemia was investigated. Administration of the biguanides (15.0 mg/kg) to hypoglycemic rats promoted reduction of the free radical processes intensity in the studied tissues. Data about CD and POM level changes in hyperglycemic rats treated by NIPMG and DKB correlate with the results of DNA fragmentation degree evaluation. At the same time, the activity of antioxidant enzymes (glutathione peroxidase and glutathione reductase), and the reduced glutathione content in the liver and heart of rats changed toward control values. For metformin, which was used as a comparison drug, changes in the studied parameters in the same direction were also found. These results indicate the ability of the tested biguanide derivatives to exhibit a positive regulatory effect on free radical homeostasis, reducing the degree of oxidative stress at this pathology.
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Keywords: hyperglycemia, free radical oxidation, proteins oxidative modification, DNA fragmentation, glutathione antioxidant system, biguanides

Gorina, E. I., Popova, T. N., Shulgin, K. K., Popov, S. S., Panchenko, L. F., Safonova, O. A. (2018). The effect of biguanide derivatives on oxidative stress in rats with hyperglycemia. Biomeditsinskaya Khimiya, 64(3), 261-267.
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