Source of Increased Serum Beta-Hexosaminidase in Rat Liver Cirrhosis

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Abstract
Lysosomal enzymes were studied by histo- and biochemical methods in cirrhotic rat livers in order to explain the serum increase of lysosomal enzymes in cirrhosis. Biochemically, the most evident increase was found in isolated hepatocytes. Histochemically, the lysosomal enzymes were increased mainly in rows of macrophages and necrotic or atrophic hepatocytes adjacent to strands of connective tissue at the periphery of the cirrhotic nodules. The results were compared to similar studies in cholestatic rats. It is concluded that most of the increased serum activities of the lysosomal enzymes derive from the hepatocytes.