Response to IGF-1 Generation Test in Short Prepubertal Children Born Very Preterm or at Term

Autor: Valentina Chiavaroli, José G. B. Derraik, Paul L. Hofman, Wayne S. Cutfield, Harriet L. Miles
Rok vydání: 2015
Předmět:
Zdroj: Hormone Research in Paediatrics. 84:298-304
ISSN: 1663-2826
1663-2818
DOI: 10.1159/000439233
Popis: Aims: To investigate whether short children born very preterm (Methods: We studied 26 prepubertal children (aged 7.0 ± 2.0 years) with short stature (height adjusted for parents' heights Results: At baseline, preterm children had lower IGF-binding protein 1 (IGFBP-1; -22%; p = 0.049) and IGFBP-3 (-24%; p = 0.013) concentrations than term children. Preterm children also had insulin concentrations that tended to be 39% higher (p = 0.059) than term peers. After stimulation, IGF-1 and IGFBP-3 concentrations increased similarly in term and preterm groups, while GH-binding protein (GHBP) concentrations decreased in both groups. Preterm children had higher GHBP (+50%; p = 0.049), insulin (+86%; p = 0.005), and leptin (+107%; p = 0.020) but lower IGFBP-1 (-47%; p = 0.006) concentrations than term children following rhGH stimulation. Conclusions: Preterm children who are short for genetic height potential show no evidence of GH resistance that would explain their short stature. However, there was indirect evidence of insulin resistance in the preterm children, as previously described in this group.
Databáze: OpenAIRE