We have located links that may give you full text access.
Journal Article
Research Support, Non-U.S. Gov't
Hypochromic red blood cells in low-risk myelodysplastic syndromes: effects of treatment with hemopoietic growth factors.
Haematologica 2004 December
BACKGROUND AND OBJECTIVES: The anemia of low-risk myelodysplastic syndromes (MDS), refractory anemia (RA) and RA with ringed sideroblasts (RARS), may respond to treatment with hematopoietic growth factors (GF)); erythropoietin (Epo) +/- granulocyte colony-stimulating factor (G-CSF). The present study was designed to assess whether functional iron deficiency may develop in MDS patients receiving these treatments.
DESIGN AND METHODS: Erythrocyte scattergrams from 34 patients with RA and RARS (untreated, transfused, or GF-treated with partial or complete erythroid response) were analyzed with Bayer-Advia equipment.
RESULTS: In untreated RARS, the proportion of hypochromic erythrocytes (Hypo-e, median 6.2%, range 1.1-8%) and hypochromic reticulocytes (Hypo-r, median 45%, range 22-48%), as well as mean corpuscular volume (MCV, median 101 fL) were significantly elevated compared to corresponding values in controls. These values increased further after GF-treatment (median 11%, 57%, and 105 fL, respectively), in spite of improved hemoglobin values and adequate body iron stores. The values observed in untreated RA patients largely fell within the normal range, and there was no significant influence of GF treatment. Notably, the hemoglobin content of reticulocytes (MCHr) did not differ between MDS and controls, and was not influenced by GF treatment.
INTERPRETATION AND CONCLUSIONS: The red cell population in RARS shows morphological abnormalities in terms of varying but overall increased size, and reduced hemoglobin concentration. The proportion of abnormal cells increases after successful pro-erythroid GF treatment, indicating that GF promote erythroblast survival, and maturation into erythrocytes. Hence, the finding of hypochromic red cells should not routinely be interpreted as a marker for Epo-induced functional iron deficiency in MDS.
DESIGN AND METHODS: Erythrocyte scattergrams from 34 patients with RA and RARS (untreated, transfused, or GF-treated with partial or complete erythroid response) were analyzed with Bayer-Advia equipment.
RESULTS: In untreated RARS, the proportion of hypochromic erythrocytes (Hypo-e, median 6.2%, range 1.1-8%) and hypochromic reticulocytes (Hypo-r, median 45%, range 22-48%), as well as mean corpuscular volume (MCV, median 101 fL) were significantly elevated compared to corresponding values in controls. These values increased further after GF-treatment (median 11%, 57%, and 105 fL, respectively), in spite of improved hemoglobin values and adequate body iron stores. The values observed in untreated RA patients largely fell within the normal range, and there was no significant influence of GF treatment. Notably, the hemoglobin content of reticulocytes (MCHr) did not differ between MDS and controls, and was not influenced by GF treatment.
INTERPRETATION AND CONCLUSIONS: The red cell population in RARS shows morphological abnormalities in terms of varying but overall increased size, and reduced hemoglobin concentration. The proportion of abnormal cells increases after successful pro-erythroid GF treatment, indicating that GF promote erythroblast survival, and maturation into erythrocytes. Hence, the finding of hypochromic red cells should not routinely be interpreted as a marker for Epo-induced functional iron deficiency in MDS.
Full text links
Related Resources
Trending Papers
Challenges in Septic Shock: From New Hemodynamics to Blood Purification Therapies.Journal of Personalized Medicine 2024 Februrary 4
Molecular Targets of Novel Therapeutics for Diabetic Kidney Disease: A New Era of Nephroprotection.International Journal of Molecular Sciences 2024 April 4
The 'Ten Commandments' for the 2023 European Society of Cardiology guidelines for the management of endocarditis.European Heart Journal 2024 April 18
A Guide to the Use of Vasopressors and Inotropes for Patients in Shock.Journal of Intensive Care Medicine 2024 April 14
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app