Effect of erythropoietin on the lipid composition of red blood cell membrane

Ghosal, Jharna ; Biswas, Tuli ; Ghosh, Amitava ; Datta, Asoke G. (1984) Effect of erythropoietin on the lipid composition of red blood cell membrane Biochemical Medicine, 32 (1). pp. 1-14. ISSN 0006-2944

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000629...

Related URL: http://dx.doi.org/10.1016/0006-2944(84)90002-4


Effect of Ep on [14C]acetate incorporation into different lipid fractions of RBC membranes in starved and phenylhydrazine-treated rats was studied. The incorporation was increased into both neutral and phospholipid fractions on Ep treatment to starved or phenylhydrazine-treated rats. A slight decrease in the ratio of neutral lipid to phospholipid was observed under the influence of Ep in starved rats (23%) or in phenylhydrazine-treated rats (36%). Incorporation of radioactivities into different phospholipid fractions of RBC membrane increased on Ep treatment to starved rats, whereas, the relative percentages of these phospholipids (except LPC) remained more or less unchanged under similar conditions. Phenylhydrazine treatment increased the relative percentage of PC and concomitantly decreased the percentage of Sph. Percentage composition of both these two phospholipids showed a tendency to return to their normal levels on administration of Ep to phenylhydrazine-treated rats. Ep decreased the Σsaturated/Σunsaturated ratio of fatty acids in PE, PS, and PC of RBC membrane in starved rats. On the other hand, no significant change was observed in this ratio of fatty acids in the phospholipids except Sph of RBC membrane in the presence of phenylhydrazine and Ep. In Sph, the ratio went down under similar conditions.

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