[Several possible approaches to the interpretation of histoenzymatic reactions]

As a result of comparative histoenzymatic and electron microscopic investigations performed on the myocardium of the isolated heart, a close connection has been stated between a peculiar sedimentation of diphormasan granules and conditions of mitochondria in myocardial cells at different time of thermal cardiac ischemia. Four types of sedimentation of the products of histoenzymatic sedimentation have been revealed: diffuse-granular, granular, scattered and "secondary" diffuse. Their connection with peculiarities of energy metabolism of mitochondria and transmembrane transport is demonstrated. A possibility is suggested to use histoenzymatic reactions in order to determine vitality of conserved organs.