Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-6-2
pubmed:abstractText
The amount and localization of three hormones (histamine, endorphin and triiodothyronine [T(3)]) was measured in male and female rat peritoneal cells (lymphocytes, mast cells, monocyte-macrophage-granulocyte group [mo-gran]) using flow cytometry as well as confocal microscopy after paraformaldehyde (PFA) or EDAC fixation. In the EDAC fixed lymphocytes and mo-gran of female animals two-magnitude higher levels of histamine were measured after EDAC fixation and one magitude higher in mast cells. The amount of T(3) was almost four-fold in lymphocytes and 2.5-4-fold in mast cells and mo-gran. Endorphin content was not altered by the type of fixation. In each cell type in males one magnitude higher levels of histamine and T(3) were measured after EDAC fixation and a small, but significant, elevation of endorphin. Confocal microscopy supports the quantitative data. The results show that (1) the fixation with the crosslinking molecule, EDAC, is more suitable for immunocytochemical studies of amino-acid type hormones in immune cells, (2) more histamine and T(3) are present in the immune cells than it was supposed previously when studying PFA-fixed preparations, (3) the estimation of the amount of peptide hormones seems to be accurate after PFA fixation, (4) there is a quantitative difference comparing the results of PFA and EDAC fixation between males and females.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1065-6995
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
412-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Influence of paraformaldehyde and EDAC fixation on the demonstrability of hormones (histamine, endorphin, triiodothyronine) in rat immune cells: an immunocytochemical comparative analysis.
pubmed:affiliation
Department of Genetics, Cell and Immunobiology, Semmelweis University, POB 370, 1445 Budapest, Hungary. csagyor@dgci.sote.hu
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Evaluation Studies