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Erythropoetin treatment can increase 2,3-diphosphoglycerate levels in red blood cells
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Hematologi)
2001 (English)In: Scandinavian Journal of Clinical and Laboratory Investigation, ISSN 0036-5513, Vol. 61, no 5, 337-340 p.Article in journal (Refereed) Published
Abstract [en]

Some patients experience an improved well-being during treatment with recombinant human erythropoietin even with an unchanged Hb level. We have hypothesized that this may not be only a placebo effect. 2,3-diphosphoglycerate (2,3-DPG) in red blood cells increases in response to anaemia/hypoxia and causes a shift of the oxygen dissociation curve, allowing a more effective oxygen delivery. We have investigated red cell 2,3-DPG concentrations during erythropoietin treatment in healthy volunteers as a mediator of a possible physiological explanation. Thirteen healthy subjects with no iron deficiency were recruited and randomly assigned to a treatment group comprising five males and three females and a control group including three males and two females. The treatment group was treated with erythropoietin (Recormon), 20 IE/kg subcutaneously three times/week for 4 weeks. Blood samples were collected at each injection day and 10 days after the last injection and at corresponding times in the control group. B-Hb, red cell 2,3-DPG and P50 were measured by standard techniques and oxygen-releasing capacity was calculated. RESULTS: due to the sampling (26 ml each time, three times/week) the mean Hb level was lowered from 140.5 +/- 5.9 to 128.6 +/- 10.4 g/L in the control group whereas the erythropoietin treatment group maintained a mean Hb level of about 142 g/L (p<0.002). The 2,3-DPG mean level curve as well as that for oxygen releasing capacity also differed significantly between the two groups (p < 0.002), the treatment group showing higher levels. CONCLUSION: treatment with erythropoietin causes an increase in red cell 2,3-DPG levels.

Place, publisher, year, edition, pages
2001. Vol. 61, no 5, 337-340 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-137255PubMedID: 11569479OAI: oai:DiVA.org:uu-137255DiVA: diva2:377926
Available from: 2010-12-15 Created: 2010-12-15 Last updated: 2010-12-21Bibliographically approved

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