Linked Life Data

2045931

Source:http://linkedlifedata.com/resource/pubmed/id/2045931

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-7-15
pubmed:abstractText
Hepatic binding protein (HBP) is a hepatocyte-specific receptor for serum asialoglycoproteins. The receptor also recognizes a synthetic glycoprotein that has been developed as a radiopharmaceutical, technetium-99m-galactosyl-neoglycoalbumin (99mTc-NGA). This report describes the correlation between receptor parameters measured in vivo via kinetic modeling of 99mTc-NGA and those measured by in vitro radioassay of biopsied liver tissue. Eleven patients with diffuse hepatic disease underwent percutaneous liver biopsy followed by a 99mTc-NGA functional imaging study. In vivo measurements of HBP quantity Ro and forward binding rate constant kb obtained from the kinetic analysis of 99mTc-NGA liver and blood time-activity data were compared to total receptor quantity and the HBP-99mTc-NGA association constant KA as measured by Scatchard binding assay of the biopsied tissue. The correlation coefficients between in vivo and in vitro measurements were 0.73 (df = 8, p = 0.015) and 0.98 (df = 8, p less than 0.01) for Ro and kb, respectively. The in vivo measurements of HBP biochemistry via kinetic analysis of the radiopharmaceutical time-activity data reflect the average concentration and affinity of the receptor. This study further substantiates the validity of 99mTc-NGA as a quantitative probe for the HBP receptor.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0161-5505
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1177-82
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Validation of in vivo receptor measurements via in vitro radioassay: technetium-99m-galactosyl-neoglycoalbumin as prototype model.
pubmed:affiliation
Department of Radiology, University of California, Davis, Sacramento 95817.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.