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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1993-12-20
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pubmed:abstractText |
A competitive enzyme immunoassay for the determination of human insulin-like growth factor I in microtiter plates was established. Using a polyclonal antiserum raised in rabbits against hIGF-I ovalbumin conjugate the assay system was able to detect IGF-I at a range of 12-800 pg/well with a sensitivity of 10 pg/well. It showed a low (< 0.5%) cross reactivity with hIGF-II. The serum concentrations of IGF-I found by EIA agreed well with those found in a conventional RIA (r = 0.965, p < 0.001). Effects of age and sex on IGF-I levels were studied in 260 normal adults. There was no evidence for sex differences but a steep decline of values from the third to the fourth and from the eight to the ninth decade, respectively. To asses the diagnostic capability of the IGF-I determination in liver cirrhosis, 71 sera of patients classified according to Child classes (A-C) were measured. Although significantly diminished concentrations were found in class B vs A and in class C vs B, the diagnostic sensitivity in cross-sectional examinations proved to be low (class A: 0.33, class B: 0.67). Only in the case of extensively destroyed liver parenchyma (Child C: 0.94) IGF-I was a good indicator of impaired hepatocellular capacity. In 29 patients with acromegaly serum IGF-I levels were investigated. All patients with active acromegaly showed increased IGF-I levels. In contrast, in inactive or weakly active acromegaly values were considerably lower.(ABSTRACT TRUNCATED AT 250 WORDS)
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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:issn |
0232-7384
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
101
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
144-9
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8223982-Acromegaly,
pubmed-meshheading:8223982-Adolescent,
pubmed-meshheading:8223982-Adult,
pubmed-meshheading:8223982-Aged,
pubmed-meshheading:8223982-Aged, 80 and over,
pubmed-meshheading:8223982-Female,
pubmed-meshheading:8223982-Growth Hormone,
pubmed-meshheading:8223982-Humans,
pubmed-meshheading:8223982-Immunoenzyme Techniques,
pubmed-meshheading:8223982-Insulin-Like Growth Factor I,
pubmed-meshheading:8223982-Liver Cirrhosis,
pubmed-meshheading:8223982-Male,
pubmed-meshheading:8223982-Middle Aged,
pubmed-meshheading:8223982-Radioimmunoassay,
pubmed-meshheading:8223982-Reference Values
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pubmed:year |
1993
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pubmed:articleTitle |
Measurement of insulin-like growth factor I (IGF-I) in normal adults, patients with liver cirrhosis and acromegaly: experience with a new competitive enzyme immunoassay.
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pubmed:affiliation |
Department of Medicine, University of Leipzig, FRG.
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pubmed:publicationType |
Journal Article
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