Related Experiment Video
Updated: Oct 2, 2026

Comparative Analysis of Human Growth Hormone in Serum Using SPRi, Nano-SPRi and ELISA Assays
Published on: January 7, 2016
Early manifestations of Prader-Willi syndrome: influence of growth hormone
U Eiholzer1, M Schlumpf, Y Nordmann
1Foundation Growth Puberty Adolescence, Zürich, Switzerland. mail@childgrowth.org
Insights
Growth hormone (GH) treatment in infants with Prader-Willi syndrome (PWS) normalizes growth and body proportions. Early GH intervention in PWS children may improve body composition and motor development, warranting further long-term studies.
Area of Science:
- Pediatrics
- Genetics
- Endocrinology
Background:
- Prader-Willi syndrome (PWS) is increasingly diagnosed in infants due to genetic confirmation.
- Infants with PWS often exhibit features suggestive of early growth hormone (GH) deficiency, including low birth weight and poor growth.
- The optimal timing for initiating GH treatment in PWS patients remains an important clinical question.
Purpose of the Study:
- To evaluate the effects of early exogenous growth hormone (GH) treatment in very young children diagnosed with Prader-Willi syndrome (PWS).
Main Methods:
- A study involving ten very young children with PWS (mean age 1.0 year) treated with exogenous GH.
- Assessment of growth, body composition, and motor development in treated children.
Main Results:
- GH treatment normalized growth and body proportions in young PWS children.
- GH treatment likely reduced fat mass and increased muscle mass.
- Potential enhancement of motor development was observed.
- GH treatment is crucial but not sufficient for normalizing body composition and fat distribution.
Conclusions:
- Early GH treatment in children with Prader-Willi syndrome normalizes growth and body proportions.
- GH therapy may positively impact body composition and motor development in PWS.
- Longer-term studies are needed to confirm the benefits of initiating GH treatment at a very early age in PWS patients.
Abstract:
Pediatricians and neonatologists now understand the clinical picture of Prader-Willi syndrome (PWS) in infants as genetic tools are available to confirm this diagnosis. Hence, an increasing number of very young, still underweight children are being diagnosed with PWS. Some features, such as low prenatal weight and below-average height, subsequent poor growth velocity and increased body fat, possibly in infancy, may be interpreted as a consequence of early growth hormone (GH) deficiency. This raises the question of when is the best time for the initiation of GH treatment. This article presents the results of a study in which ten very young children with PWS (mean age 1.0 year) were treated with exogenous GH. We conclude that GH treatment in young, underweight children, as well as in older children with PWS: (1) normalizes growth and body proportions; (2) probably reduces fat mass and increases muscle mass; (3) may enhance motor development; and (4) is necessary, but obviously not sufficient, to normalize body composition and fat distribution. Whether there is a benefit in treating children with PWS from such an early age requires longer-term studies.
Related Concept Videos
Physical Growth During Infancy and Toddlerhood
Nature and Nurture
Type I Diabetes III: Clinical Manifestations
Principles of Development
Huntington Disease l: Introduction
Adrenal Gland Disorders
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
