Switch to
Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1985-6-24
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pubmed:abstractText |
GH-releasing factor (GHRH) was measured by RIA in the plasma of 22 constitutionally short children given an ornithine infusion or an oral dose of L-dopa. After an overnight fast and 1 h of rest, plasma GHRH levels were 49.7 +/- 7.3 pg/ml (+/- SEM). In 5 children, L-dopa induced an increase in mean GH levels from 1.8 to 12 ng/ml at 60 min. Mean plasma GHRH levels increased from 47 pg/ml to a peak of 96 pg/ml at 15 min (P less than 0.02). In 4 other children, no increase in either GH or GHRH occurred after L-dopa treatment. In these 9 children, a significant correlation was found between the peak GH and GHRH concentrations (r = 0.841; P less than 0.001). On the contrary, ornithine-induced GH release was not preceded by a GHRH rise, but was followed by a GHRH decrease, from 51 to 27 pg/ml (P less than 0.02). We conclude that the 2 tests stimulate GH release in different ways, and that GH levels may be involved in the feedback control of GHRH secretion.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Growth Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Growth Hormone-Releasing Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Iodine Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Levodopa,
http://linkedlifedata.com/resource/pubmed/chemical/Ornithine
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0021-972X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
60
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1132-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3923020-Adolescent,
pubmed-meshheading:3923020-Child,
pubmed-meshheading:3923020-Child, Preschool,
pubmed-meshheading:3923020-Female,
pubmed-meshheading:3923020-Growth Hormone,
pubmed-meshheading:3923020-Growth Hormone-Releasing Hormone,
pubmed-meshheading:3923020-Humans,
pubmed-meshheading:3923020-Iodine Radioisotopes,
pubmed-meshheading:3923020-Levodopa,
pubmed-meshheading:3923020-Male,
pubmed-meshheading:3923020-Ornithine
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pubmed:year |
1985
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pubmed:articleTitle |
Variations of plasma growth hormone (GH)-releasing factor levels during GH stimulation tests in children.
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pubmed:publicationType |
Journal Article
|