Long-term effects of growth hormone (GH) treatment on body composition and bone mineral density in short children born small-for-gestational-age: six-year follow-up of a randomized controlled GH trial
Ruben H. Willemsen
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorNicolette J. T. Arends
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorWillie M. Bakker-van Waarde
Beatrix Children's Hospital, Groningen, the Netherlands,
Search for more papers by this authorMaarten Jansen
Wilhelmina Children's Hospital, Utrecht, the Netherlands,
Search for more papers by this authorEdgar G. A. H. Van Mil
Free University Medical Center, Amsterdam, the Netherlands,
Search for more papers by this authorRoelof J. Odink
Catharina Hospital, Eindhoven, the Netherlands,
Search for more papers by this authorMaarten Reeser
Juliana Children's Hospital, The Hague, the Netherlands,
Search for more papers by this authorCiska Rongen-Westerlaken
Canisius Wilhelmina Hospital, Nijmegen, the Netherlands,
Search for more papers by this authorWilhelmina H. Stokvis-Brantsma
Leiden University Medical Center, Leiden, the Netherlands
Search for more papers by this authorJohan J. J. Waelkens
Catharina Hospital, Eindhoven, the Netherlands,
Search for more papers by this authorAnita C. S. Hokken-Koelega
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorRuben H. Willemsen
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorNicolette J. T. Arends
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorWillie M. Bakker-van Waarde
Beatrix Children's Hospital, Groningen, the Netherlands,
Search for more papers by this authorMaarten Jansen
Wilhelmina Children's Hospital, Utrecht, the Netherlands,
Search for more papers by this authorEdgar G. A. H. Van Mil
Free University Medical Center, Amsterdam, the Netherlands,
Search for more papers by this authorRoelof J. Odink
Catharina Hospital, Eindhoven, the Netherlands,
Search for more papers by this authorMaarten Reeser
Juliana Children's Hospital, The Hague, the Netherlands,
Search for more papers by this authorCiska Rongen-Westerlaken
Canisius Wilhelmina Hospital, Nijmegen, the Netherlands,
Search for more papers by this authorWilhelmina H. Stokvis-Brantsma
Leiden University Medical Center, Leiden, the Netherlands
Search for more papers by this authorJohan J. J. Waelkens
Catharina Hospital, Eindhoven, the Netherlands,
Search for more papers by this authorAnita C. S. Hokken-Koelega
Department of Pediatrics, Division of Endocrinology, Erasmus MC Sophia, Rotterdam, the Netherlands,
Search for more papers by this authorSummary
Context Alterations in the GH-IGF-I axis in short small-for-gestational-age (SGA) children might be associated with abnormalities in bone mineral density (BMD) and body composition. In addition, birth weight has been inversely associated with diabetes and cardiovascular disease in adult life. Data on detailed body composition in short SGA children and long-term effects of GH treatment are very scarce.
Objective To investigate effects of long-term GH treatment on body composition and BMD by dual energy X-ray absorptiometry (DXA) in short SGA children.
Design Longitudinal 6-year GH study with a randomized controlled part for 3 years.
Results At baseline, fat percentage standard deviation score (SDS) and lumbar spine BMD SDS corrected for height (BMADLS SDS) were significantly lower than zero. Lean body mass (LBM) SDS adjusted for age was also reduced, but LBM adjusted for height (LBM SDSheight) was not decreased. GH treatment induced a decrease in fat percentage SDS and an increase in BMADLS SDS. LBM SDSheight remained similar in GH-treated children, but deteriorated in untreated controls. When these untreated controls subsequently started GH treatment, their LBM SDSheight rapidly normalized to values comparable with zero.
Conclusion During long-term GH treatment in short SGA children, fat percentage SDS decreased and BMADLS SDS increased. These effects of GH treatment were most prominent in children who started treatment at a younger age and in those with greater height gain during GH treatment. LBM SDSheight remained around 0 SDS in GH-treated children, but declined to low normal values in untreated controls.
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