Changes in the composition of proteins in the blood during the period of ischemia-reperfusion syndrome, modeled by a violation of blood flow in the liver

Abstract

On the experimental model of liver ischemia-reperfusion, quantitative changes in protein composition in the blood of white outbred rats were investigated. It was found that against the background of a 10-minute ischemia, the total protein content decreased by 0,9%, albumins by 1,5% (p0,05). The content of globulins practically did not change, and the content of fibrinogen increased by 33,3% (p0,05). In the corresponding periods of reperfusion compared with intact values, the content of total protein and albumins decreased, and globulins and fibrinogen increased. The intensity of changes in the quantitative and qualitative content of proteins in the blood of animals depended on both the duration of the ischemia period and the duration of reperfusion. At the same time, the increase in the level of globulins in the blood occurred more intensively during reperfusion after 20 minutes of ischemia. Thus, against the background of ischemia, there are changes in the quantitative composition of plasma proteins (total protein, albumins, globulins, fibrinogen). As the duration of ischemia increases, pathological changes increase. With reperfusion, the process continues unidirectionally, but against the background of a deeper ischemia lasting 20 minutes, some parameters of the pathological changes in the blood composition are less pronounced than against a background of reperfusion after a 10-minute ischemia. This phenomenon is explained by the activation of the protective and adaptive functions of the body.