PMID: 7524925Apr 1, 1993Paper

Comparison between insulin-like growth factor-I (IGF-I) and IGF binding protein-3 (IGFBP-3) measurement in the diagnosis of growth hormone deficiency

Endocrine Journal
Y HasegawaS Saisyo

Abstract

To analyze the utility of insulin-like growth factor-I (IGF-I) and insulin-like growth factor binding protein-3 (IGFBP-3) radioimmunoassay in the diagnosis of growth hormone deficiency (GHD) we measured IGF-I and IGFBP-3 in sera from normal children (n = 309), short children (n = 99) and patients with GHD (n = 73). In 80% and 93% of classical GHD (cGHD), IGF-I and IGFBP-3 levels, respectively, were below the age-related cutoff levels (lower limit). In 81% and 88% of normal short children (NS), IGF-I and IGFBP-3 levels, respectively, were above the age-related cutoff levels. Thus, both IGF-I and IGFBP-3 were good parameters for screening GHD. In contrast, in more than half of partial GHD (pGHD), either IGF-I or IGFBP-3 was above the age-related cutoff levels. The poor discrimination between patients with pGHD and NS by using these two parameters may be the result of their relatively similar GH levels, as compared to cGHD, or due to the limitations of GH stimulation tests. In about 80-90% of NS, IGF-I and IGFBP-3 were above the age-related cutoff levels at all ages. A hundred percent of cGHD under 10 years old had IGFBP-3 below the age-related cutoff levels, whereas 79% of cGHD under 10 years old had IGF-I below the age-related c...Continue Reading

Citations

Jan 1, 1995·Progress in Growth Factor Research·Y HasegawaY Tsuchiya
Jun 25, 1994·Lancet·T HarrisP Wilson
Aug 1, 1994·Journal of Immunoassay·M TakadaY Hasegawa
Apr 1, 1994·Acta Paediatrica. Supplement·R G RosenfeldY Oh
Mar 12, 2005·Hormone Research·Gianluca AimarettiEzio Ghigo
Mar 13, 2009·American Journal of Physiology. Cell Physiology·Paulette M Yamada, Kuk-Wha Lee
Jan 16, 2020·Archives of Endocrinology and Metabolism·Katharina Schilbach, Martin Bidlingmaier

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