[Functional morphology of the myocardium and carotid paraganglion of dogs during electrical stimulation of the carotid sinus nerve in experimental stenocardia].

Histochemical methods demonstrated the recovery of the glycogen content, the activity of succinate dehydrogenase and alpha-glycerophosphate dehydrogenase as well as increased fluorescence of catecholaminergic nerves in short-term ischemized myocardium (experimental angina pectoris) after stimulation of the carotid sinus nerve. At the same time, a decrease in the number of cells containing catecholamines in the carotid paraganglion was observed which might indicate their discharge into the blood. Normalization of the histochemical values in ischemized myocardium after stimulation of the carotid sinus nerve allows this method to recommend for investigations in clinical practice.