Abstract
We studied the effect of intensive light exposure on the aggregation activity of white male rats' platelets using the experimental Light-Dark (18:6) lighting model. Analysis of platelet aggregation activity was carried out using a computerized 230LA "Biola" aggregation analyzer using the method of V.A. Gabbasov. It was established that in case of prolonged light exposure in the body of laboratory animals there was a disturbance of aggregation activity accompanied by an increase in the parameters of the curve of the average weighted radius of platelets and the parameters of the light transmittance curve. Violation of the daytime regime in the form of artificial prolongation of illumination causes increase of platelet aggregation activity and provokes development of microcirculatory disturbances. Forming changes in the hemostasis system increase in proportion to the duration of the experiment. The most pronounced changes in the vascular-platelet mechanism of hemostasis are formed on the 21st day of the experiment, indicating the development of processes of maladaptation followed by exhaustion of the organism.
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