THE DISTRIBUTION OF DEOXYRIBONUCLEASE IN NORMAL, CIRRHOTIC AND NEOPLASTIC RAT LIVERS
Author(s) -
R. Daoust,
Antonio Cantero
Publication year - 1959
Publication title -
journal of histochemistry and cytochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.971
H-Index - 124
eISSN - 1551-5044
pISSN - 0022-1554
DOI - 10.1177/7.2.139
Subject(s) - parenchyma , connective tissue , liver parenchyma , pathology , deoxyribonuclease , lobules of liver , distribution (mathematics) , biology , enzyme , chemistry , biochemistry , medicine , mathematical analysis , mathematics
The distribution of deoxyribonuclease in normal, cirrhotic and neoplastic rat livers was investigated histochemically using the gelatine-DNA film method. The bile duct cells and connective tissue elements which are present in abnormal amounts in cirrhotic liver contain little DNAase activity compared with parenchymal tissue. The distribution pattern of DNAase is relatively uniform in normal liver parenchyma but becomes heterogeneous in the parenchyma of cirrhotic and neoplastic tissues. Groups of parenchymal cells in cirrhotic liver and the hepatoma cells in general appear devoid of DNAase activity. The necrotic areas of tissues, on the other hand, show intense enzyme activity.
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