Sialic acid metabolism in regenerating rat liver |
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| Authors: | Gollamudi S. Kishore Raoul Carubelli |
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| Affiliation: | 1. Biomembrane Research Laboratory, Oklahoma Medical Research Foundation, University of Oklahoma, Health Sciences Center, Oklahoma City, Oklahoma 73104 U.S.A.;2. Department of Biochemistry and Molecular Biology, University of Oklahoma, Health Sciences Center, Oklahoma City, Oklahoma 73104 U.S.A. |
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| Abstract: | Sialic acid metabolism was investigated in control rat liver, in regenerating liver at 24 h and 48 h after partial hepatectomy and in the liver of sham-operated animals. High levels of membrane-bound neuramindase, with no detectable changes in the soluble enzyme, were observed in regenerating rat liver. The neuraminidase activities in the liver of sham-operated rats were identical to those present in control liver. High levels of CMP-N-acetylneuraminic acid synthetase and sialyltransferase were observed both in regenerating liver as well as in the liver of sham-operated rats. The sialic acid content of regenerating rat liver, which was lower than that found in the liver of control and sham-operated rats at 24 h, returned to normal values 48 h after surgery. |
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