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Updated: Jan 13, 2026

Comparative Analysis of Human Growth Hormone in Serum Using SPRi, Nano-SPRi and ELISA Assays
Published on: January 7, 2016
Growth hormone treatment in adults with Prader-Willi syndrome: an update
Graziano Grugni1, Alessandro Sartorio1
1Experimental Laboratory for Auxo-Endocrinological Research, Istituto Auxologico Italiano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Piancavallo-Verbania, Italy.
Insights
Recombinant human growth hormone therapy (rhGHT) shows promise for adults with Prader-Willi syndrome (PWS), improving body composition, strength, and psychological well-being. Further long-term studies are recommended.
Area of Science:
- Endocrinology
- Genetics
- Metabolic Disorders
Background:
- Prader-Willi syndrome (PWS) is a rare genetic disorder affecting chromosome 15q11.2-q13, leading to hypotonia, hyperphagia, obesity, and developmental issues.
- Key features include altered body composition, cognitive deficits, behavioral problems, short stature, and endocrine dysfunction, particularly affecting the growth hormone (GH)/IGF-I axis.
Purpose of the Study:
- To review the current evidence on recombinant human GH therapy (rhGHT) in adults with PWS.
- To evaluate the impact of rhGHT on various physiological and psychological parameters in this population.
Main Methods:
- This narrative review synthesizes available data from studies on rhGHT in adult PWS patients.
- Focus is placed on effects related to body composition, physical function, cardiovascular and respiratory health, endocrine/metabolic status, bone health, and psychological well-being.
Main Results:
- rhGHT demonstrates positive effects on body composition, which correlates with improved muscle strength and exercise tolerance.
- Evidence suggests improvements in cardiorespiratory function and psychological outcomes with rhGHT.
- Current studies are largely uncontrolled and short-term, limiting definitive conclusions.
Conclusions:
- rhGHT appears beneficial for adults with PWS, impacting body composition, physical capacity, and psychological health.
- Longitudinal studies are needed to confirm long-term efficacy and safety.
- Consideration for rhGHT approval in genetically confirmed PWS adults, irrespective of GH deficiency status, is suggested.
Introduction:
Prader-Willi syndrome (PWS) is a rare disorder caused by the lack of expression of paternal genes on chromosome 15q11.2-q13. The clinical picture of PWS is characterized by neonatal hypotonia, hyperphagia, obesity, altered body composition, cognitive impairment, behavioral disturbances, short stature, and multiple endocrinopathies, including growth hormone (GH)/IGF-I axis dysfunction.
Areas Covered:
This narrative review addresses the current state-of-the-art of recombinant human GH therapy (rhGHT) in adults with PWS, focusing on its effects on body composition, muscle strength and exercise capacity, cardiovascular and respiratory function, endocrine and metabolic parameters, bone health, and psychological aspects.
Expert Opinion:
Available data demonstrated the positive effects of rhGHT on the body composition of GH-treated subjects. This observation is significant, as improving body composition has been shown to increase muscle strength and exercise tolerance. Overall, rhGHT appears to improve both cardiorespiratory function and psychological outcomes. However, most of the studies are uncontrolled and short-term. Therefore, longitudinal trials evaluating the long-term effects of rhGHT are recommended to confirm these findings. Since the beneficial effects of rhGHT appear to be independent of the presence of GH deficiency, we believe that its approval should be considered in adults with genetically confirmed PWS without testing for GH secretion.
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