Reference : Quantitative assessment of erythropoiesis in haemodialysis patients demonstrates grad...
Scientific journals : Article
Human health sciences : Hematology
http://hdl.handle.net/2268/6629
Quantitative assessment of erythropoiesis in haemodialysis patients demonstrates gradual expansion of erythroblasts during constant treatment with recombinant human erythropoietin.
English
Beguin, Yves mailto [Centre Hospitalier Universitaire de Liège - CHU > > Hématologie clinique >]
Loo, Martine mailto [ > > ]
R'Zik, Samir mailto [Centre Hospitalier Universitaire de Liège - CHU > > PLAN COS >]
Sautois, Brieuc mailto [Centre Hospitalier Universitaire de Liège - CHU > > Oncologie médicale >]
Lejeune, Frédéric [Centre Hospitalier Universitaire de Liège - CHU > > HOSPITALISATION - S.I. CHIRURGICAUX (SI +1C) >]
Rorive, Georges mailto [Université de Liège - ULg > Département des sciences cliniques > Département des sciences cliniques >]
Fillet, Georges mailto [Centre Hospitalier Universitaire de Liège - CHU > > Hématologie clinique >]
1995
British Journal of Haematology
Blackwell Publishing
89
1
17-23
Yes (verified by ORBi)
International
0007-1048
1365-2141
Oxford
United Kingdom
[en] Adult ; Aged ; Anemia/blood/etiology/therapy ; Erythroblasts/pathology ; Erythropoiesis/physiology ; Erythropoietin/therapeutic use ; Female ; Hematocrit ; Humans ; Kidney Failure, Chronic/complications ; Male ; Middle Aged ; Receptors, Transferrin/metabolism ; Recombinant Proteins/therapeutic use ; Renal Dialysis ; Reticulocyte Count ; Time Factors
[en] Recombinant human erythropoietin (rHuEpo) has been shown to be effective in correcting the anaemia of chronic renal failure. It has been reported that reticulocytes as well as erythroid progenitors increase within 1-2 weeks, with no further elevation beyond this time interval. However, the erythroblast pool is quantitatively the most important compartment of erythropoiesis, and the rate, extent and duration of the expansion of erythropoietic activity in response to rHuEpo is not known. Treatment with rHuEpo was given to 64 patients i.v. thrice weekly after haemodialysis. The effect of rHuEpo was obvious from the early elevation of reticulocyte counts, but much of this increase was due to a rapid output of shift reticulocytes which levelled off after a few weeks. Serum transferrin receptor (TfR), a quantitative measure of erythropoiesis, increased progressively over 6 weeks to reach a plateau phase at about twice baseline values. The Hct increased progressively and continued to rise steadily after the TfR plateau was reached. The speed and extent of the expansion of erythropoietic activity correlated with the later haematological response to rHuEpo. When rHuEpo was discontinued, erythropoietic activity returned progressively to baseline values, to rise again gradually when treatment was resumed. Part of the Hct increase was also due to haemoconcentration. The results indicate that changes in the various erythroid compartments vary considerably in intensity and speed, and that the erythroblast compartment in particular is slow to respond to modifications in the erythropoietin stimulus.
http://hdl.handle.net/2268/6629

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