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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1998-5-29
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pubmed:abstractText |
The insulin-like growth factors (IGF-I and IGF-II) may play an important role in postpneumonectomy compensatory lung growth by translating hormonal inputs and mechanical forces into cellular proliferation signals. We examined the mRNA abundance of IGF-I, IGF-II, and IGF binding proteins (IGFBPs) in lungs of rats on postoperative days 1, 2, 3, 5, and 7 following left pneumonectomy (PNX) or shamoperation (SC) and in normal animals (CON). There was no difference in the abundance of lung IGF-I mRNA (measured by Northern analysis) or serum IGF-I (measured by radioimmunoassay (RIA)) between SC and PNX animals. IGF-II mRNA abundance was initially decreased following PNX (73% decrease compared to SC animals on day 1, p < .05) and then rose to approach SC group values on subsequent days. Transcripts for IGFBP-2, -3, -4, -5, and -6 were decreased in both the SC and PNX groups compared to CON animals on the day following pneumonectomy, then rose back to baseline by postoperative day 2-3. Tissue IGFBPs, measured by ligand blot analyses, were not different in either the SC or PNX groups. In contrast, all serum IGFBP bands were increased on postoperative day 1 following either sham or PNX surgery. In addition, serum IGFBP-4 was increased in PNX animals compared to the SC group on days 1 and 2 (increase of 38% and 78%, respectively, p < .05). We conclude that the changes observed in lung IGF and IGFBP expression following pneumonectomy do not represent major.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0190-2148
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
24
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
203-17
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9555577-Animals,
pubmed-meshheading:9555577-Blotting, Northern,
pubmed-meshheading:9555577-Insulin-Like Growth Factor I,
pubmed-meshheading:9555577-Insulin-Like Growth Factor II,
pubmed-meshheading:9555577-Lung,
pubmed-meshheading:9555577-Male,
pubmed-meshheading:9555577-Organ Size,
pubmed-meshheading:9555577-Pneumonectomy,
pubmed-meshheading:9555577-RNA, Messenger,
pubmed-meshheading:9555577-Rats,
pubmed-meshheading:9555577-Rats, Sprague-Dawley,
pubmed-meshheading:9555577-Regeneration
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pubmed:articleTitle |
Expression of the insulin-like growth factor system in postpneumonectomy lung growth.
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pubmed:affiliation |
Department of Pediatrics, University of North Carolina at Chapel Hill, USA. waprice.pedslan@mhs.unc.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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