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Antimutagenic 1,4-Dihydropyridine AV-153 Normalizes Expression of GLUT1, GLUT4, INOS, PARP1, and Gamma H2AX Histone in Myocardium of Rats with Streptozotocin Model of Diabetes Mellitus Cover

Antimutagenic 1,4-Dihydropyridine AV-153 Normalizes Expression of GLUT1, GLUT4, INOS, PARP1, and Gamma H2AX Histone in Myocardium of Rats with Streptozotocin Model of Diabetes Mellitus

Open Access
|May 2023

Abstract

Diabetic cardiomyopathy increases the risk of heart failure and worsens prognosis for diabetes mellitus (DM) patients. Its development depends on many factors, including modification of nitric oxide production and impaired DNA repair. The goal of the present work was to study in vivo effects of a 1,4-dihydropyridine AV-153, known as antimutagen and DNA-binder, on DNA integrity, and on the expression of several proteins involved in glucose transport, nitric oxide metabolism, and DNA repair in myocardium in diabetic rats. DM was induced in rats by streptozotocin (STZ) injection. Expression of proteins was studied by means of immunohistochemistry. Development of the STZ-induced DM significantly induced PARP1 and gamma H2AX histone, markers of DNA breakage, protein expression in heart tissue, while AV-153 administration decreased PARP1 and H2AX protein expression. In this model of diabetes, myocardial expression of iNOS was also significantly increased, but administration of AV-153 reduced it to normal levels. AV-153 also upregulated the expression of insulin-dependent GLUT4 and insulin-independent GLUT1 glucose transporters up to normal level in diabetic rats. Thus, AV-153 appears to be prospective for creation of a remedy for prevention of diabetic cardiomyopathy.

DOI: https://doi.org/10.2478/prolas-2023-0014 | Journal eISSN: 2255-890X | Journal ISSN: 1407-009X
Language: English
Page range: 96 - 101
Submitted on: Feb 8, 2021
Accepted on: Mar 28, 2023
Published on: May 18, 2023
Published by: Latvian Academy of Sciences
In partnership with: Paradigm Publishing Services
Publication frequency: 6 issues per year

© 2023 Evita Rostoka, Sergejs Isajevs, Jeļizaveta Sokolovska, Gunārs Duburs, Nikolajs Sjakste, published by Latvian Academy of Sciences
This work is licensed under the Creative Commons Attribution 4.0 License.