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  • Title: [Enzymatic heterogeneity of the rat myocardium].
    Author: Klibaner MI, Danilova KM.
    Journal: Biull Eksp Biol Med; 1976; 81(4):487-9. PubMed ID: 1276459.
    Abstract:
    The histoenzymatic method was applied to the study of distribution of the activity of the redox enzymes in the myocardium of the ventricles in rats; distribution of the activity of lactic and malic dehydrogenase and of alpha-glycerophosphate proved to be the most manifest near the apex of the heart and was expressed in the presence of "spotty" areas of increased activity against the general homogeneous background of formazan deposits. The activity of mitochondrial upsilon-glycerophoric dehydrogenase was seen in all the portions of the ventricles and was characterized by an uneven distribution in the sarcoplasm with increase in the direction from the interdisc to the nucleus. Unevenness of distribution of the beta-oxybutyric dehydrogenase activity was detected in some of the animals and was pronounced in all the portions of the myocardium. The intensity of the reaction in detection of succinic dehydrogenase, NAD- and NADP-diaphorases varied but insignificantly.
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