Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-7-21
pubmed:abstractText
This investigation studied the effects of cell preparation methods, different antibody panels and blood storage on antigen expression of abnormal B lymphocytes from patients with B-CLL. Blood specimens collected in Heparin de novo were processed by using conventional Hypaque-Ficoll density gradient centrifugation and whole blood lysis. These were stored for 3 days at 4 degrees C, 24 degrees C and 30 degrees C. Although clonal excess was detected by all antibody panels, significant differences could be observed in terms of molecules of equivalent fluorochromes (MEF/MESF units). Evaluation of 'weak and strong' staining is dependent on the antibody panel used. Immunofluorescent values for CD19 and CD45 were unchanged at 4 degrees C and 24 degrees C but immunoglobulin staining showed best results when blood was stored at 4 degrees C. Storage at 30 degrees C produced unreliable results. Abnormal B lymphocytes should be analysed immediately after the specimen is obtained. If shipment is necessary they should be kept at 4 degrees C. Surface immunoglobulins are the 'antigens' most sensitive to storage alterations. Sample alterations alone are sufficient to the correct classification of NHL, especially in the case of low-grade NHL.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0141-9854
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-12
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Comparative flow cytometric study of clonal excess in leukaemic peripheral blood from patients suffering from chronic lymphocytic leukaemia (B-CLL) by different antibodies, staining techniques and the effects of blood storage.
pubmed:affiliation
Department of Internal Medicine, Otto-von-Guericke-University of Magdeburg, Germany.
pubmed:publicationType
Journal Article, Comparative Study