Linked Life Data

2973657

Source:http://linkedlifedata.com/resource/pubmed/id/2973657

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1988-12-27
pubmed:abstractText
Complement receptors, CR1 and CR3, on neutrophils increase their cellular spontaneously at 37 degrees C or after mechanical stress during the cell preparation. We have established a cell preparation procedure and a cytofluorometric immunoassay method to evaluate the receptor expression in vivo in this study. The expression of CR1 and CR3 was studied after haemolysis in NH4Cl at different temperatures and incubation intervals. It was shown that cell preparation and receptor analysis must be performed at 15 degrees C or lower to avoid up-regulation of the receptor structures. Two minutes' incubation at 20 degrees C was sufficient to modulate the cells in this regard. Granulocytes from healthy blood donors were analysed and the mean fluorescence intensity (MFI), which reflects the number of receptors on the cell surface, showed a normal distribution for the CR1 (n = 158) and CR3 (n = 76) expression in the healthy population. The MFI of the two receptors showed a correlation (r = 0.71). Granulocytes from all donors could be modulated at 37 degrees C to a similar degree for both receptors (r = 0.76), despite the fact that they are supposed to be mobilized from different intracellular pools. A group of patients with localized inflammatory processes, such as sinusitis, differed from the healthy controls. In this group, the CR1 expression was not normally distributed, but 15 out of 26 patients (58%) had granulocytes with a CR1 expression exceeding the mean +/- SD of the normal population.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0300-9475
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
339-44
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
The expression of CR1 and CR3 on non-modulated and modulated granulocytes of healthy blood donors as measured by flow cytofluorometry.
pubmed:affiliation
Department of Clinical Immunology, Karolinska Hospital, Stockholm, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't