PMID- 16464954 OWN - NLM STAT- MEDLINE DCOM- 20060501 LR - 20140729 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 91 IP - 4 DP - 2006 Apr TI - High serum levels of growth hormone (GH) and insulin-like growth factor-I (IGF-I) during high-dose GH treatment in short children born small for gestational age. PG - 1390-6 AB - CONTEXT: Epidemiological studies have indicated that high serum levels of GH and IGF-I are associated with long-term risks. OBJECTIVE: The objective of the study was to evaluate the changes in serum levels of GH during overnight profiles, IGF-I, and IGF binding protein 3 (IGFBP-3) in short small for gestational age (SGA) children during GH treatment with two doses. PATIENTS: Thirty-six prepubertal short SGA children were the subjects of this study. INTERVENTION: Subjects received 1 (group A) or 2 (group B) mg GH/m(2).d. MAIN OUTCOME MEASURES: At baseline and after 6 months of GH treatment, overnight GH profiles were performed, and serum IGF-I and IGFBP-3 levels were measured. RESULTS: After 6 months, group B had significantly higher GH levels during the profile (mean, maximum, and area under the curve above zero line) than group A (P < 0.009). In group B, maximum GH levels increased from 43.9-161 mU/liter (P < 0.0002), and in group A, from 57.2-104 mU/liter (P = 0.002). During the profile (i.e. 12 h per day), children of group B had mean GH levels of 64.4 vs. 34.8 mU/liter in group A (P = 0.001). The IGF-I and IGF-I to IGFBP-3 ratio sd scores increased significantly in both groups, but were higher in group B than A [1.5 vs. 0.2 (P = 0.002) and 1.4 vs. 0.3 (P = 0.007), respectively]. In group B, 74% of the children had IGF-I levels in the highest quintile during GH treatment compared with 19% in group A. CONCLUSION: Our study shows that high-dose GH treatment in short SGA children results in high serum GH and IGF-I levels in most children. We recommend monitoring IGF-I levels during GH therapy to ensure that these remain within the normal range. FAU - van Dijk, Marije AU - van Dijk M AD - Department of Pediatrics, Division of Endocrinology, Erasmus University Medical Center, Sophia Children's Hospital sk-0152, P.O. Box 2060, 3000 CB Rotterdam, The Netherlands. m.vandijk.1@erasmusmc.nl FAU - Mulder, Paul AU - Mulder P FAU - Houdijk, Mieke AU - Houdijk M FAU - Mulder, Jaap AU - Mulder J FAU - Noordam, Kees AU - Noordam K FAU - Odink, Roelof J AU - Odink RJ FAU - Rongen-Westerlaken, Ciska AU - Rongen-Westerlaken C FAU - Voorhoeve, Paul AU - Voorhoeve P FAU - Waelkens, Johan AU - Waelkens J FAU - Stokvis-Brantsma, Jet AU - Stokvis-Brantsma J FAU - Hokken-Koelega, Anita AU - Hokken-Koelega A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060207 PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Insulin-Like Growth Factor Binding Protein 3) RN - 12629-01-5 (Human Growth Hormone) RN - 67763-96-6 (Insulin-Like Growth Factor I) RN - 9002-72-6 (Growth Hormone) SB - IM MH - Area Under Curve MH - Body Height/*physiology MH - Child MH - Female MH - Growth/drug effects/physiology MH - Growth Hormone/*therapeutic use MH - Human Growth Hormone/*blood MH - Humans MH - Infant, Newborn MH - *Infant, Small for Gestational Age MH - Insulin-Like Growth Factor Binding Protein 3/blood MH - Insulin-Like Growth Factor I/*metabolism MH - Male EDAT- 2006/02/09 09:00 MHDA- 2006/05/02 09:00 CRDT- 2006/02/09 09:00 PHST- 2006/02/09 09:00 [pubmed] PHST- 2006/05/02 09:00 [medline] PHST- 2006/02/09 09:00 [entrez] AID - jc.2005-1663 [pii] AID - 10.1210/jc.2005-1663 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2006 Apr;91(4):1390-6. doi: 10.1210/jc.2005-1663. Epub 2006 Feb 7.