Alterations of Hepatocellular Peroxisomes in Viral Hepatitis in the Mouse.
Journal of hepatology(1990)
摘要
In addition to being found in peroxisomal diseases, peroxisomal alterations are also seen in viral hepatitis, though quantitative data are lacking. Experiments were performed on BALB/c mice. These mice were infected with Mouse Hepatitis Virus type 3 or were starved. The peroxisomes were cytochemically stained for catalase. Light microscopic, ultrastructural and morphometric analysis were performed. Several peroxisomal changes were observed 24 h after infection, and these changes became more pronounced after 40 h. There was a decrease in catalase activity, which was more pronounced in some regions, in some cells and in individual organelles; and there was also the onset of a progressive decrease in the number of organelles. It is believed that peroxisomes disappear by lysis. Proliferation probably occurs simultaneously up to 40 h after infection. At 48 h, necrotic foci are found to have swollen peroxisomes, and thus destruction is enhanced. Although peroxisomes seem to be sensitive markers of hepatic injury, they show a heterogeneous reaction pattern. Our results are discussed in relation to human viral hepatitis.
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