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  • Title: Changes in lysosomal enzymes in acute experimental liver injury.
    Author: Slater TF, Greenbaum AL.
    Journal: Biochem J; 1965 Aug; 96(2):484-91. PubMed ID: 5837787.
    Abstract:
    1. An investigation has been made of the changes occurring in lysosomal enzyme activities during the early development of experimentally produced liver injury in the rat. Three enzymes have been studied: acid phosphatase, acid ribonuclease and beta-glucuronidase. Four different methods of inducing liver injury have been used: administration of carbon tetrachloride, thioacetamide, dimethylnitrosamine and the fungal toxin sporidesmin. 2. The majority of the data presented concern alterations produced by carbon tetrachloride. Despite the extensive central necrosis and accompanying fat accumulation which this poison produced in the liver, only small changes in the activity and latency of lysosomal enzymes could be detected. In the early (pre-necrotic) period of injury these changes were insignificant. At a late stage of injury, when extensive centrilobular necrosis was present, there were indications of lysosomal rupture. 3. The results obtained with the other three hepatotoxins were similar to those described for carbon tetrachloride in that no evidence of early lysosomal rupture was obtained during the pre-necrotic period. It is concluded that lysosomes probably play no role in the early development of the four types of liver injury studied but, instead, are involved in later scavenging processes.
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