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  • Title: In vitro metabolism of packed erythrocytes stored in CPD-adenine.
    Author: Bensinger TA, Metro J, Beutler E.
    Journal: Transfusion; 1975; 15(2):135-9. PubMed ID: 1118878.
    Abstract:
    In vitro metabolism of erythrocytes packed at 70 and 90 per cent hematocrits and stored in various CPD-adenine preservatives was studied. It was found that maintenance of acceptable levels of adenosine triphosphate (ATP) for the full 42 days of storage could be accomplished only if glucose levels were doubled from the standard 138.7 mM concentration to 277.5 mM level. If glucose levels were doubled, the amount of adenine could be decreased from 4.07 mM (0.50 mM final concentration) to 2.04 mM (0.25 mM final concentration) with maintenance of ATP at greater than 2.0 mumoles/g Hb. 2,3-diphosphoglycerate concentrations were essentially absent by 21 days in the various media studies. Thus, in vitro levels of ATP appear to be maintained at acceptable levels in a CPD media modified to contain 2 times glucose and 2.04 mM adenine.
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