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pubmed:abstractText |
The enzyme activities of S-adenosylhomocysteine hydrolase, adenosine deaminase and pyruvate kinase were determined in normal human erythrocytes subpopulations of different ages separated by centrifugation on a discontinuous Percoll:NaCl density gradient. The levels of S-adenosylhomocysteine hydrolase activity were found to undergo a sharp decrease with red cell ageing. Adenosine deaminase activities were, however, less critically dependent on erythrocyte age.
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