Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-6-30
pubmed:abstractText
The action of insulin and IGF-1 in comparison to non-diabetic controls was studied in cultured fibroblasts of a patient with an inherited syndrome of insulin resistance (Type A syndrome). Insulin binding was reduced due to decreased receptor affinity, but sequence analyses revealed no alterations of splicing or primary insulin receptor (IR) structure. Most likely due to the IR affinity defect analyses of signal transduction pathways showed an impairment of insulin action on glucose uptake, total RNA synthesis and phosphorylation as well as activity of MAP-kinase. In addition inducibility of c-fos mRNA level was strongly impaired by insulin and IGF-1, but comparable to controls by PDGF indicating a postreceptor defect. In conclusion, we provide evidence that genetic syndromes of insulin resistance can be associated with both, receptor and postreceptor defects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
234
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
626-30
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Defects of insulin and IGF-1 action at receptor and postreceptor level in a patient with type A syndrome of insulin resistance.
pubmed:affiliation
Klinik II und Poliklinik für Innere Medizin der Universität zu Köln,Cologne, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't