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  • Title: [A study on creatine uptake into human erythrocytes: relation to erythrocyte aging].
    Author: Okumiya T, Kageoka T, Hashimoto E, Park K, Nishida M, Sasaki M.
    Journal: Rinsho Byori; 1992 Apr; 40(4):441-4. PubMed ID: 1593770.
    Abstract:
    In order to assess the relation between creatine uptake into human erythrocytes and erythrocyte aging, actual influx of creatine into erythrocytes and creatine contents in erythrocytes were measured by using method of high performance liquid chromatography and isotopic estimation of 14C-creatine concentration. Actual influx of creatine into erythrocytes was showed rapidly, in spite of constant contents of erythrocyte creatine under the condition to be incubated at 37 degrees C for approximate 4 hours in isotonic saline containing high concentration of creatine. Km values of the creatine uptake into young erythrocytes were evidently smaller than that into old erythrocytes. On the other hand, no significant difference of Vmax values was observed to be dependent on erythrocyte aging.
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