Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1992-12-24
pubmed:abstractText
Insulin gene expression has been demonstrated in nonpancreatic tissues early in development, suggesting that this hormone might have actions significant for the differentiating embryo. Because such actions imply ligand-receptor binding, we quantified mRNAs encoding the two known forms of insulin receptor in rat liver and yolk sac, two endodermally derived tissues shown to express insulin genes, between gestation days (E) 13 and E21 (mid-organogenesis to parturition). Because of its presumed importance for fetal growth, we estimated the abundance of mRNA encoding insulin-like growth factor 1 (IGF 1) receptor in the same samples for comparison. The abundance of insulin receptor mRNA exceeded that for IGF 1 receptor mRNA in liver and yolk sac at all times studied. This difference was greater in liver, where insulin receptor mRNAs were three to more than 50 times more abundant than IGF 1 receptor mRNA on gestation days E13-E16, times which antedate the development of significant hepatic metabolic actions of insulin. The marked abundance of mRNAs encoding insulin receptors is consistent with the hypothesis that insulin has significant actions in specific tissues during the organogenic period.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0888-8809
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1665-72
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Insulin receptor gene expression during development: developmental regulation of insulin receptor mRNA abundance in embryonic rat liver and yolk sac, developmental regulation of insulin receptor gene splicing, and comparison to abundance of insulin-like growth factor 1 receptor mRNA.
pubmed:affiliation
Washington University Medical Service, St. Louis Department of Veterans' Affairs Medical Center, John Cochran Division, Missouri 63106.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S.