Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
1996-1-16
|
pubmed:abstractText |
Insulin-like growth factor I (IGF-I) is thought to play a role in the development of proliferative diabetic retinopathy. Proliferative diabetic retinopathy is characterised by the formation of fibrovascular epiretinal membranes, and IGF-I may initiate and/or potentiate this epiretinal proliferation. To evaluate further the part played by IGF-I in the development of epiretinal tissue, we investigated the presence of IGF-I receptor/binding protein in proliferating diabetic fibrovascular epiretinal membranes. Five fibrovascular epiretinal membranes were obtained by vitrectomy from five patients with proliferating diabetic retinopathy. The presence of IGF-I receptors was investigated by autoradiography using 125I-labeled IGF-I on frozen sections. To characterise binding specificity, some sections were preincubated with either insulin or unlabeled IGF-I. Sections of post-mortem liver were used as controls. Strong labeling of cells with 125I-labeled IGF-I was observed in all epiretinal membranes and in liver cells. Almost no autoradiographic labeling was observed in sections that had been blocked with non-radioactive IGF-I, and very little labeling was found following blockage with insulin. Our preliminary study suggests the presence of IGF-I receptor/binding protein in human diabetic epiretinal membranes. These results support the hypothesis that IGF-I may be involved in the formation of proliferative diabetic membranes.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0941-2921
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
4
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
264-8
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:7496335-Autoradiography,
pubmed-meshheading:7496335-Diabetic Retinopathy,
pubmed-meshheading:7496335-Histocytochemistry,
pubmed-meshheading:7496335-Humans,
pubmed-meshheading:7496335-Insulin-Like Growth Factor Binding Proteins,
pubmed-meshheading:7496335-Liver,
pubmed-meshheading:7496335-Receptor, IGF Type 1,
pubmed-meshheading:7496335-Retina,
pubmed-meshheading:7496335-Retinal Neovascularization
|
pubmed:year |
1995
|
pubmed:articleTitle |
Insulin-like growth factor I (IGF-I) receptor/binding protein in human diabetic epiretinal membranes.
|
pubmed:affiliation |
Moorfields Eye Hospital, Vitreo-Retinal Department, London, UK.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|