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Effect of blood donation on the establishment of normal ranges of lymphocyte subsets


Bryant, JA and Wylie, BR and Yuan, FF and Ribeiro, A and Thomson, AR and Cooley, MA and Fletcher, A, Effect of blood donation on the establishment of normal ranges of lymphocyte subsets, Transfusion, 36, (6) pp. 559 - 566. ISSN 0041-1132 (1996) [Refereed Article]

DOI: doi:10.1046/j.1537-2995.1996.36696269517.x


BACKGROUND: Absolute counts of CD4+ T-lymphocytes are used in the management of patients with human immunodeficiency virus infection. Low absolute counts of CD3+CD4+ cells have also been observed in healthy people--a phenomenon called idiopathic CD4 lymphocytopenia. It is common practice for normal ranges for lymphocyte subsets to be derived from samples taken from blood donors. STUDY DESIGN AND METHODS: A sample of EDTA blood was taken through the donation line tubing, after donation from 565 blood donors in Sydney, Australia, who were selected from a range of age groups. An additional 12 donors provided a predonation sample as well as a postdonation sample. Hematologic assays were performed on two analyzers. Samples were stained for CD3, CD4, CD8, CD19, and CD56 and analyzed on a flow cytometer. RESULTS: Three donors were found to have absolute CD3+CD4+ counts < 300 cells per microL. The percentage of CD3+CD4+ cells was found to increase with age. Both the percentage and the absolute count of CD3+CD8+ cells decreased with age, which resulted in an increased CD4:CD8 ratio with age. Men had consistently higher absolute counts of CD3-CD56+ cells than women. The 12 additional donors all had greater percentages of CD3+CD4+ cells and lower absolute counts for CD3+, CD3+CD4+, CD3+CD8+, CD19+ and CD3-CD56+ cells after donation than they had before donation (p < 0.001). CONCLUSION: It is not satisfactory to base normal ranges for lymphocyte subsets on donor blood, from which the blood sample has been obtained after donation.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Immunology
Research Field:Cellular immunology
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Cooley, MA (Associate Professor Margaret Cooley)
ID Code:83747
Year Published:1996
Web of Science® Times Cited:14
Deposited By:Medicine
Deposited On:2013-03-21
Last Modified:2013-03-21

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