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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1993-6-9
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pubmed:abstractText |
A specific radioimmunoassay for human IGFBP-2 was developed using a polyclonal antiserum directed against a partial sequence (hIGFBP-2(176-190)). The tracer was prepared by radioiodination of a [Tyr]o-hIGFBP-2(176-190) derivative. The assay was used to study IGFBP-2 levels in numerous clinical and experimental situations. There was little circadian fluctuations of serum level which showed a marked age-dependence with high levels at birth and senescence and low levels during puberty. Decreased IGFBP-2 levels were present in untreated insulin-dependent diabetes mellitus (IDDM), in acromegaly and during dexamethasone suppression test. GH deficiency, fasting, IGF-I administration to patients with GH receptor deficiency, hepatic failure and insulinomas caused a moderate increase of serum IGFBP-2. Markedly elevated levels were found in chronic renal failure, non-islet cell tumour induced hypoglycemia and leukaemias. The fact that all possible relationships between insulin secretion and IGFBP-2 levels could be identified suggests that insulin is not a major regulator. In general, there was an inverse relationship with serum IGFBP-3 (except IDDM) and IGFBP-2 levels were high in situations where free IGF-II should be expected to be high. The tentative conclusion would therefore be that free IGF-II is a major regulator of circulating IGFBP-2.
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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:month |
Mar
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pubmed:issn |
0956-523X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
100-4
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pubmed:dateRevised |
2005-11-16
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pubmed:meshHeading |
pubmed-meshheading:7683512-Animals,
pubmed-meshheading:7683512-Carrier Proteins,
pubmed-meshheading:7683512-Disease,
pubmed-meshheading:7683512-Humans,
pubmed-meshheading:7683512-Insulin-Like Growth Factor Binding Protein 2,
pubmed-meshheading:7683512-Radioimmunoassay,
pubmed-meshheading:7683512-Somatomedins
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pubmed:year |
1993
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pubmed:articleTitle |
Clinical studies of IGFBP-2 by radioimmunoassay.
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pubmed:affiliation |
Universitätskinderklinik, Tübingen, Germany.
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pubmed:publicationType |
Journal Article,
Review
|