The effect of a new magnesium-containing compound on the dynamics of apoptosis and proliferation of hepatocytes in reversible cholestasis in rats in an experiment

Abstract

Objective – to study the effect and effectiveness of a derivative of LBK-527on the dynamics of apoptosis and regenerative potential of hepatocytes in reversible cholestasis in rats in an experiment. Material and methods. Reversible occlusion of the choledochus was formed in 130 white non-linear male laboratory rats by fixing the common bile duct to the inner surface of the anterior abdominal wall using a latex tourniquet. After 5 days, the passage of bile was restored, followed by intravenous administration of LBK-527 and a comparison drug (ademethionine) in medium therapeutic doses. The animals were removed from the experiment on 1, 3, 7, 14, 21 days after the restoration of the bile passage, followed by liver extraction for immunohistochemical study of the expression of markers of proliferation and apoptosis of liver cells. Results. It was found that intravenous administration of the substance under study and the comparison drug from the 3rd day leads to a significant decrease in the expression of caspase-3, followed by the restoration of its level to normal values by the end of the experiment. In addition, when studying the expression level of Ki-67, a marked increase in this indicator was observed from the 1st day after the restoration of the bile passage, which indicates the activation of the proliferative potential of hepatocytes. Conclusion. When studying the molecular and cellular mechanisms of action of LBK-527, it was found that it has a pronounced hepatoprotective effect and consists in reducing the severity of apoptosis and intensification of regenerative processes in the liver.