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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0011155,
umls-concept:C0011209,
umls-concept:C0013336,
umls-concept:C0021665,
umls-concept:C0028754,
umls-concept:C0034693,
umls-concept:C0034721,
umls-concept:C0037663,
umls-concept:C0344335,
umls-concept:C0449774,
umls-concept:C0871261,
umls-concept:C1704632,
umls-concept:C1706817,
umls-concept:C2911692
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pubmed:issue |
5
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pubmed:dateCreated |
1996-6-5
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pubmed:abstractText |
We describe a new animal model of obesity and GH deficiency and report the effects on body fat of administering (GH) and insulin-like growth factor (IGF-I) in the model. Female GH-deficient dwarf rats fed a high-fat diet became obese and insulin-resistant compared with chow-fed controls. They were treated with recombinant human GH (rhGH 100-500 micrograms/day, s.c. for 14 days) by daily injection or minipump infusion with or without rhIGF-I (200 micrograms/day, sc infusion). Injections of rhGH increased body weight; infusions of rhGH caused weight loss. RhIGF-I by itself, or rhIGF-I plus GH injections had little effect, whereas rhGH infusions plus rhIGF-I caused a weight loss equivalent to the weight gained during the high-fat feeding and a decrease in fat pad weight. For some responses (serum IGF-1 and GHBP), the obese rats were GH resistant. Fat was lost from the internal fat pads when obese rats were returned to a chow diet, and injections of rhGH surprisingly attenuated this loss of fat. In obese dwarf rats, the lipolytic effects of rhGH are dose-regime dependent. By itself IGF-I is not insulin-like, but in the presence of GH it has antiinsulin actions causing a powerful net lipolysis. If GH plus IGF-I have similar effects in humans they may be useful for reducing body fat.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0013-7227
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
137
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1904-12
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:8612530-Adipose Tissue,
pubmed-meshheading:8612530-Animals,
pubmed-meshheading:8612530-Diet,
pubmed-meshheading:8612530-Dietary Fats,
pubmed-meshheading:8612530-Drug Interactions,
pubmed-meshheading:8612530-Eating,
pubmed-meshheading:8612530-Female,
pubmed-meshheading:8612530-Growth Hormone,
pubmed-meshheading:8612530-Insulin-Like Growth Factor I,
pubmed-meshheading:8612530-Kinetics,
pubmed-meshheading:8612530-Lipolysis,
pubmed-meshheading:8612530-Obesity,
pubmed-meshheading:8612530-Rats,
pubmed-meshheading:8612530-Rats, Mutant Strains,
pubmed-meshheading:8612530-Recombinant Proteins,
pubmed-meshheading:8612530-Weight Gain
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pubmed:year |
1996
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pubmed:articleTitle |
The obese growth hormone (GH)-deficient dwarf rat: body fat responses to patterned delivery of GH and insulin-like growth factor-I.
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pubmed:affiliation |
Genentech, Inc., South San Francisco, California 94080, USA.
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pubmed:publicationType |
Journal Article
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