Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1994-6-29
pubmed:abstractText
The present study evaluates the properties of the reticulocytes produced in healthy volunteers after treatment with different regimens of recombinant human erythropoietin (r-HuEPO). Twenty-four subjects were randomly assigned to one of three different subcutaneous (SC) r-HuEPO (Protcrit; Ortho Biotech) administration protocols (I: 300 U/kg on days 1, 4, 7, 10; II: 400 U/kg on days 1, 5, 9; III: 600 U/kg on days 1, 10) with oral iron supplementation (Niferex; 150 mg, twice a day). The characteristics of the reticulocytes produced were examined with a flow cytometry method that allows measurements of individual reticulocyte cell volume, hemoglobin concentration, and hemoglobin content. Administration of SC r-HuEPO was associated with a significant increase in the production of reticulocytes. The hemoglobin content of reticulocytes (CHr, in picograms of hemoglobin per cell) in the three groups was 28.5 +/- 1.0, 28.2 +/- 0.5, and 28.5 +/- 1.3, respectively, at baseline, decreased to 24.6 +/- 1.6 (p < 0.001), 24.5 +/- 2.3 (p < 0.001), and 27.5 +/- 1.8 (not significant) at day 10, and returned to baseline after r-HuEPO was discontinued (28.8 +/- 0.9, 28 +/- 0.8, and 28.8 +/- 1.4, respectively, at day 22). The percentage of reticulocytes with cell hemoglobin content less than 23 pg was taken as an indicator of iron-deficient erythropoiesis. At baseline, 5.6% +/- 2.7%, 6.9% +/- 3.4%, and 8.3% +/- 3.8% of reticulocytes had less than 23 pg hemoglobin in groups I, II, and III, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-2143
pubmed:author
pubmed:issnType
Print
pubmed:volume
123
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
660-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Effects of subcutaneous recombinant human erythropoietin in normal subjects: development of decreased reticulocyte hemoglobin content and iron-deficient erythropoiesis.
pubmed:affiliation
Department of Pathology, Brigham and Women's Hospital.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Research Support, Non-U.S. Gov't