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1996-02-26
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Document 0678
DOCN M9620678
TI CD4 Lymphocyte enumeration: comparison between flow cytometry and enzyme
immunoassay.
DT 9602
AU Cordiali Fei P; Solmone M; Vanacore P; Giglio A; Bonifati C; Carducci M;
Mussi A; Chiarotti F; Ameglio F; Laboratory of Clinical Pathology,
Istituto San Gallicano, Rome,; Italy.
SO Cytometry. 1995 Mar 15;22(1):70-4. Unique Identifier : AIDSLINE
MED/96090286
AB Assessment of the CD4 lymphocyte number, currently performed by flow
cytometry, is one of the main laboratory tests for establishing
progression to acquired immunodeficiency syndrome (AIDS). An enzyme
immunoassay has recently been commercialized which can be very useful
for counting CD4 cells in laboratories where flow cytometers are not
available. In the present study, a comparative evaluation of CD4
positive lymphocytes with flow cytometry and the enzyme assay was made
in healthy subjects (N = 30, R = 0.88, P < 0.0001), human
immunodeficiency virus (HIV)-infected individuals (N = 80, R = 0.91, P <
0.0001), and patients with autoimmune diseases (N = 28, R = 0.82, P <
0.001) or psoriasis (N = 18, R = 0.76, P = 0.01). A correlation between
the two methodologies was not found in psoriatic patients under
treatment with cyclosporin A (N = 7, R = 0.05, not significant). Some
differences could be found at low CD4 lymphocyte levels since the
influence of CD4 antigen eluted from monocytes or soluble CD4 in the
whole blood sample could cause overestimation of CD4 cell numbers by the
enzyme assay.
DE Acquired Immunodeficiency Syndrome/*DIAGNOSIS Autoimmune
Diseases/*DIAGNOSIS Case-Control Studies Comparative Study CD4
Lymphocyte Count/*METHODS Disease Progression *Flow Cytometry Human
*Immunoenzyme Techniques Linear Models Psoriasis/*DIAGNOSIS Support,
Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).