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  • Title: The anemia of end-stage renal disease: hematopoietic progenitor cell response.
    Author: Segal GM, Eschbach JW, Egrie JC, Stueve T, Adamson JW.
    Journal: Kidney Int; 1988 May; 33(5):983-8. PubMed ID: 3392887.
    Abstract:
    Patients with the anemia of end-stage renal disease (ESRD) fail to display an appropriate compensatory increase in red cell production. In order to investigate the extent to which the impaired erythropoietic response is determined at the progenitor cell level, we determined the frequencies of marrow colony-forming cells in 11 anemic and 3 non-anemic, dialysis-dependent ESRD patients and 10 healthy individuals. In addition, we measured serum levels of erythropoietin (Epo) by radioimmunoassay. There were no significant differences (P greater than 0.1) between normal and ESRD groups in the frequencies of primitive or late erythroid (BFU-E and CFU-E, respectively), granulocyte-macrophage, and megakaryocyte progenitors, CFU-E/BFU-E ratios, or serum Epo levels. In contrast, 5 non-uremic patients with chronic anemia comparable in severity to the anemic ESRD patients had serum Epo levels and CFU-E/BFU-E ratios that were significantly increased (P less than 0.05 and P less than 0.001, respectively) in comparison to the normal controls and ESRD patients. Pre-dialysis serum and plasma from both ESRD groups were as supportive of autologous erythroid and non-erythroid colony growth in vitro as normal serum and plasma; inhibition was not observed. We conclude that the relative numbers of erythroid and non-erythroid progenitors and the majority of serum Epo levels are unchanged from normal in patients with the anemia of ESRD. However, their normal CFU-E/BFU-E ratio reflects an inadequate compensatory erythropoietic response due to their inability to appropriately increase Epo production in response to anemia. Inhibitors of autologous erythroid colony formation were not detected in ESRD serum.(ABSTRACT TRUNCATED AT 250 WORDS)
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