Linked Life Data

1464354

Source:http://linkedlifedata.com/resource/pubmed/id/1464354

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1993-1-21
pubmed:abstractText
The purpose of this study was to describe the function of platelets throughout their life span by expressing their in vivo distribution and kinetic behaviour in mathematical terms by using multicompartmental analysis. The distribution of indium-111 labelled platelets in five normal subjects was imaged and quantified with a scintillation camera image processing system. Serial blood samples were also obtained. The data were modelled using the SAAM (Simulation Analysis and Modelling) compartmental computer program. Five models were entertained to evaluate the role of platelets that were either functional or injured during collection and their interaction with the liver, spleen and vascular endothelium. Models were evaluated by comparing F values calculated from the least squares estimate obtained from each model. The Dornhorst function was used to describe the sequestration of platelets in the compartmental model. Results indicated that the data could not be satisfactorily simulated when compartments were included that simulated only functional and sequestered platelets (model 1). It was necessary to include compartments that simulated the kinetics of collection-injured platelets in the liver (model 2) and spleen (model 3). The model that simulated the interaction with the vascular endothelium (model 5) showed a visual but not significant improvement in the fitting of the observed data compared to model 3. The mean organ uptake and range indicated in parentheses were calculated at equilibrium. There were 20% (15%-27%) of the injected platelets in the spleen, 10% (8%-11%) in the liver and 70% (64%-75%) in the circulation.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0340-6997
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1023-31
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Blood platelet kinetics in normal subjects modelled by compartmental analysis.
pubmed:affiliation
Department of Biophysics (G68), University of the Orange Free State, Bloemfontein, South Africa.
pubmed:publicationType
Journal Article