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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1989-3-31
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pubmed:abstractText |
The half-life (t1/2) of disappearance of endogenous GH from serum was studied using physiological effectors to stimulate and then suppress GH release. GH secretion was stimulated by a single iv injection of GHRH, followed 45 min later by an iv bolus dose and then a 2.5-h infusion of somatostatin (SRIH) to suppress further release. The in vivo t1/2 of GH in seven men was calculated from serum GH concentrations measured at frequent intervals after beginning the SRIH infusion. The mean t1/2 of endogenous GH was 18.9 +/- 0.8 (+/- SE) min by monoexponential analysis and 3.5 +/- 0.7 and 20.7 +/- 0.7 min by biexponential fitting. In these normal men, the decline in GH concentrations after GHRH and SRIH administration was similar to that after the administration of GHRH alone, which yielded a t1/2 of 20.3 +/- 1.9 min. We conclude that the physiological kinetics of endogenous GH removal/disappearance can be estimated in vivo in man using GHRH with or without SRIH infusion.
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pubmed:grant | |
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 |
Mar
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pubmed:issn |
0021-972X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
68
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
535-41
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2563734-Adult,
pubmed-meshheading:2563734-Growth Hormone,
pubmed-meshheading:2563734-Growth Hormone-Releasing Hormone,
pubmed-meshheading:2563734-Half-Life,
pubmed-meshheading:2563734-Humans,
pubmed-meshheading:2563734-Infusions, Intravenous,
pubmed-meshheading:2563734-Male,
pubmed-meshheading:2563734-Somatostatin
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pubmed:year |
1989
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pubmed:articleTitle |
Half-time of endogenous growth hormone (GH) disappearance in normal man after stimulation of GH secretion by GH-releasing hormone and suppression with somatostatin.
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pubmed:affiliation |
Department of Internal Medicine, University of Virginia Medical School, Charlottesville 22908.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|