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Eur J Endocrinol. 1994 Jul;131(1):27-32.

Clinical utility of insulin-like growth factor binding protein-3 in the evaluation and treatment of short children with suspected growth hormone deficiency.

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  • 1Division of Endocrinology and Metabolism, Tokyo Metropolitan Kiyose Children's Hospital, Japan.

Abstract

We have shown previously that serum insulin-like growth factor binding protein-3 (IGFBP-3) levels have good predictive value for complete, but not partial, growth hormone deficiency (GHD). In this study, we compare IGFBP-3 levels in short children previously divided into groups on the basis of their post-stimulation GH levels. Complete GHD (N = 59) included those children with peak post-stimulation GH < 5 micrograms/l. The partial GHD group (N = 49) had post-stimulation GH peaks of > 5 micrograms/l but < 10 micrograms/l. The normal children with short stature (N = 103) had post-stimulation GH peaks > 10 micrograms/l. Partial GHD and normal children with short stature also were divided into either low IGF-I or normal IGF-I subgroups. The clinical sensitivity of IGFBP-3 for complete GHD was 92%, whereas its sensitivity for partial GHD was 39%. For partial GHD, among those with low IGF-I (N = 19) 68% were also low for IGFBP-3, while 80% of those with normal IGF-I (N = 30) were also normal for IGFBP-3. The clinical specificity of IGFBP-3 for normal children with short stature was 69%. For these groups, among those with low IGF-I (N = 22) 73% also were low for IGFBP-3, while 80% of those with normal IGF-I (N = 81) also were normal for IGFBP-3. In addition, we tested whether IGFBP-3 can predict the response to GH treatment in prepubertal children by comparing pretreatment IGFBP-3 with the height gain achieved by 1 year of GH treatment.(ABSTRACT TRUNCATED AT 250 WORDS)

PMID:
7518726
[PubMed - indexed for MEDLINE]
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