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Growth hormone improves body composition and motor development in infants with Prader-Willi syndrome after six months
Barbara Whitman1, Aaron Carrel, Tracy Bekx
1St. Louis University School of Medicine, Department of Pediatrics, MO 63104-1095, USA. whitmanb@slu.edu
Insights
Growth hormone (GH) therapy significantly improved body composition and motor skills in infants with Prader-Willi syndrome (PWS). This 6-month study shows promising results for PWS treatment.
Area of Science:
- Pediatric Endocrinology
- Genetics
- Developmental Pediatrics
Background:
- Infants with Prader-Willi syndrome (PWS) exhibit abnormal body composition.
- Previous studies indicate growth hormone (GH) therapy enhances body composition and motor skills in children with PWS.
Purpose of the Study:
- To evaluate the effects of 6-month GH therapy on body composition and motor development in infants with PWS.
Main Methods:
- Twenty-five infants with PWS underwent dual energy X-ray absorptiometry (DEXA) for body composition and the Toddler Infant Motor Evaluation (TIME) for motor skills.
- Participants were randomized to receive GH treatment (Genotropin) or a placebo for 6 months.
Main Results:
- GH treatment led to a significant increase in lean body mass (from 6.4 to 8.9 kg) and a decrease in body fat (from 27.6% to 22.4%).
- Motor scores improved by 4 months in the treated group compared to 2 months in the control group (p < 0.01).
Conclusions:
- Six months of GH therapy significantly improves body composition and motor development in infants with PWS.
- Further research is ongoing to determine if these improvements result in long-term obesity reduction.
Background:
Infants with Prader-Willi syndrome (PWS) show abnormalities of body composition. Children with PWS treated with growth hormone (GH) demonstrate improved body composition and motor skills.
Objective:
To assess body composition and motor changes in infants with PWS following 6 months GH therapy.
Methods:
Twenty-five infants with PWS (mean age 15.5 mo) underwent dual energy X-ray absorptiometry (DEXA) assessment of body composition, and motor assessment with the Toddler Infant Motor Evaluation (TIME). Patients were then randomized to treatment (Genotropin, 1 mg/m2/day) or control, with reassessment at 6 months.
Results:
GH treatment significantly increased lean body mass (6.4 +/- 2.4 kg to 8.9 +/- 2.7 kg) and decreased body fat (27.6 +/- 9.9% to 22.4 +/- 10.3%). Age equivalent motor scores improved 4 months in the treated group vs 2 months in controls (p < 0.01).
Conclusions:
Infants with PWS show significant body composition and motor development improvement following 6 months GH therapy. We are investigating whether this improvement leads to long-term reductions in obesity.
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