Comparative Study of Cardioprotective Properties of Uridine-5'-Monophosphate and Uridine in a Rat Model of Myocardial Damage Induced by Isoprenaline

被引：0

作者：

N. V. Belosludtseva ^{[1
]}

T. A. Uryupina ^{[1
]}

D. A. Khurtin ^{[2
]}

N. V. Khunderyakova ^{[1
]}

G. D. Mironova ^{[1
]}

机构：

[1] Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Moscow oblast, Pushchino

[2] Mari State University, Mari El, Yoshkar-Ola

来源：

Biophysics | 2024年 / 69卷 / 4期

关键词：

cardiomyopathy; electrocardiography; glycolysis; isoprenaline; oxidative phosphorylation; UMP; uridine;

D O I：

10.1134/S0006350924700817

中图分类号：

学科分类号：

摘要：

The effects of uridine and its monophosphoryl derivative on the level of the main biochemical markers of myocardial damage in the blood and on the electrical activity of the heart were investigated in a rat model of cardiomyopathy induced by isoprenaline. It was shown that administration of isoprenaline (150 mg/kg, subcutaneously) caused an increase in the activity of serum enzymes aspartate aminotransferase (AST) and alanine aminotransferase (ALT), leading to an elevated AST/ALT ratio (De Ritis ratio), and enhanced activity of lactate dehydrogenase in blood lymphocytes, which confirms the development of myocardial damage in experimental animals. ECG analysis revealed prolongation of the RR, P-R, QT, and QTc intervals and the QRS complex, indicating that the duration of both depolarization and repolarization phases increased relative to the duration of the cardiac cycle in rats with isoprenaline-induced myocardial damage. Preliminary administration of uridine and uridine-5'-monophosphate to experimental animals at a dose of 30 mg/kg equally effectively prevented an increase in the enzymatic activity of AST and the De Ritis ratio, led to a decrease in the duration of P-R, QRS, QT, and QTc intervals, and partially normalized the metabolic activity of rat blood lymphocytes. These findings suggest that uridine and uridine-5'-monophosphate have a similar protective effect on the contractile function of cardiomyocytes and can be considered as agents for metabolic therapy in the treatment of ischemic heart disease. © Pleiades Publishing, Inc. 2024.

引用

页码：729 / 737

页数：8

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