Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-6-9
pubmed:abstractText
To investigate the regulation of insulin-like growth factor-I (IGF-I) and insulin receptor in muscle, a sensitive enzyme immunoreceptor assay (EIRA), which allows for the determination of both affinity and capacity of the receptors, was developed. After solubilization with Triton X-100, receptors were immobilized in microtiter plates using receptor specific monoclonal antibodies that recognize the intracellular beta-domain of the respective receptors (clone 17A3 and clone 29B4). The immobilized receptors were labeled with either biotinylated IGF-I or insulin. The bound hormones were detected with a streptavidin-horseradish peroxidase technique. The assay had a detection limit of 1 fmol receptor/well. The intraassay variation was 9% (n = 22) for the IGF-I receptor concentration and 12% (n = 22) for the insulin receptor. The interassay variation was 5% (n = 4) for the IGF-I receptor and 10% (n = 4) for the insulin receptor. The coefficient of variation of the dissociation constants (Kd) was 26% (n = 7) for the IGF-I receptor and 24% (n = 7) for the insulin receptor. The assay system was used to study the effect of growth hormone treatment upon IGF-I and insulin receptors in bovine skeletal muscle. Three groups of 12 heifers (13 months old) were treated with either 320 or 640 mg recombinant bovine somatotropin (slow release preparation) every fortnight for 3 months. When samples of m. splenius were assayed for IGF-I and insulin receptors, there was no difference between groups for receptor concentration or affinity.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0003-2697
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
216
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
406-12
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
An enzyme immunoreceptor assay for the quantitation of insulin-like growth factor-I and insulin receptors in bovine muscle tissue.
pubmed:affiliation
Institut f. Physiologie, TU München, Freising, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't