title: [Functional morphology of the heart conduction system in acute myocardial infarct].
abstract: The results of histochemical, histoenzymological, and fluorescence microscopy studies of the conductive tissue of the heart in acute myocardial infarction in 30 fatal cases are presented. Focal decrease in redox and hydrolytic enzymes, monoaminoxidase, and cholinesterase in elementa of the conduction system as well as changes in the pattern of fluorescence of the specific muscle cells were found. The intensity of metabolic lesions was more pronounced at early stages of myocardial infarction in those cases where the conducting pathways were proximal to the foci of necrosis.
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000208:Acute Disease; D000368:Aged; D000469:Alkaline Phosphatase / Q000032:analysis; D002802:Cholinesterases / Q000032:analysis; D003580:Cytochromes; D003576:Electron Transport Complex IV / Q000032:analysis; D005969:Glutamate Dehydrogenase / Q000032:analysis; D005971:Glutamates; D005993:Glycerolphosphate Dehydrogenase / Q000032:analysis; D005994:Glycerophosphates; D006329:Heart Conduction System / Q000201:enzymology / Q000473:pathology*; D006801:Humans; D007770:L-Lactate Dehydrogenase / Q000032:analysis; D007773:Lactates; D008291:Malate Dehydrogenase / Q000032:analysis; D008293:Malates; D008875:Middle Aged; D008995:Monoamine Oxidase / Q000032:analysis; D009203:Myocardial Infarction / Q000473:pathology*; D009252:NADPH Dehydrogenase / Q000032:analysis; D013385:Succinate Dehydrogenase / Q000032:analysis; D013386:Succinates
chemical_list: D003580:Cytochromes; D005971:Glutamates; D005994:Glycerophosphates; D007773:Lactates; D008293:Malates; D013386:Succinates; D005993:Glycerolphosphate Dehydrogenase; D007770:L-Lactate Dehydrogenase; D008291:Malate Dehydrogenase; D013385:Succinate Dehydrogenase; D005969:Glutamate Dehydrogenase; D008995:Monoamine Oxidase; D009252:NADPH Dehydrogenase; D003576:Electron Transport Complex IV; D002802:Cholinesterases; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase
vernacular_title: Funktsional'naia morfologiia provodiashcheĭ sistemy serdtsa pri ostrom infarkte miokarda.