[Stereological characteristics and enzymatic activity of myocardial capillaries in different variants of pathology and death (data from immediate autopsies)].

Parallel stereo- and cytospectrophotometric examinations of human myocardial capillaries, 20-60 min after biological death were carried out. The activity of alkaline phosphatase, adenosine triphosphatase, lactate dehydrogenase and NAD-diaphorase in the capillary wall in relation to the sex and age in cardiovascular pathology, renal diseases and leukemias were studied. The permeability and level of energy supply of transendothelial transport were found to depend on the kind of the main pathological process and type of death. According to the parameters under study, the functional state of the capillary network of the myocardium in atherosclerosis with or without its combination with hypertension and also in secondary renal hypertension is described.