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  • Title: [Prolyl hydroxylase activity in liver specimens in chronic liver diseases (author's transl)].
    Author: Langness U, Clausnitzer H, Verspohl M, Grasedyck K.
    Journal: Med Klin; 1978 Aug 25; 73(34):1179-82. PubMed ID: 210365.
    Abstract:
    100 patients were laparoscopied, liver tissue specimens taken from atypically altered areas. Prolyl hydroxylase was determined in the specimen, in parallel tissue was examined by light microscope. 8 groups of patients could be differentiated: Patients 1. with active, 2, with inactive cirrhosis, 3. with fatty infiltrations, 4. with fatty infiltration and mesenchymal reaction, 5. with aggressive, 6. with persistent, 7. with reactive hepatitis, 8. patients without histological changes. In the case of connective tissue increase in the liver prolyl hydroxylase activities were statistically significant above normal. In addition, there was a statistically significant difference between the enzyme activities of each group. A correlation could be found between prolyl hydroxylase activity and morphologically estimated connective tissue formation, but not the serum enzyme activities usually determined in liver diseases. Therefore, could be concluded that prolyl hydroxylase activity is an index of actual collagen biosynthesis in chronic liver diseases.
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