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The recognition and treatment of growth disorders - a 50-year retrospective
1Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, Department of Pediatrics, The University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. zemel@email.chop.edu
Insights
Despite advances in growth disorder treatment, growth failure persists in children with complex conditions. Human biologists are crucial for understanding growth patterns and improving care for conditions like cystic fibrosis and sickle-cell anemia.
Area of Science:
- Human biology
- Pediatric endocrinology
- Growth and development
Background:
- Significant progress in understanding and treating classic growth disorders over 50 years.
- Key advances include recognizing hormone receptor defects, developing recombinant growth hormone, and understanding epigenetic influences on growth.
- Growth failure remains a critical issue for children with complex health conditions, including cancer survivors, premature infants, transplant recipients, and those with cystic fibrosis.
Discussion:
- Poor growth in these populations can have lasting effects into adulthood due to increased life expectancy.
- Human biologists play a vital role in defining normal growth patterns, body composition, and the interplay of growth with maturation.
- Understanding environmental, behavioral, and genetic factors influencing growth is essential for effective intervention.
Key Insights:
- Growth failure is linked to survival and malnutrition in genetic disorders like cystic fibrosis and sickle-cell anemia.
- Studying bone mineral accretion in children with cystic fibrosis highlights the importance of normative growth data for managing chronic diseases.
- Normal growth patterns in healthy children are critical benchmarks for diagnosing and managing growth disorders in chronically ill children.
Outlook:
- Continued research by human biologists is essential for advancing the recognition and treatment of growth disorders.
- Integrating knowledge of growth patterns into the care of children with chronic diseases can improve long-term outcomes.
- Further investigation into the complex interplay of factors affecting growth is needed to address persistent challenges in pediatric health.
Abstract:
The past 50 years have seen great progress in the understanding and treatment of classic growth disorders. Advances such as the recognition of hormone receptor defects, the development of recombinant growth hormone, and the expanding awareness of epigenetic phenomena affecting growth are among these great achievements. Yet growth failure remains a pervasive problem among children with complex health conditions, such as survivors of childhood cancers, premature infants, organ transplant recipients, and children with cystic fibrosis. The significant increases in life expectancy among these groups underscores the potential consequences of poor growth, whether due to the underlying conditions or medical treatments, as they may have long-lasting effects into adulthood. The ongoing contributions of human biologists to the study of human growth remain essential in the recognition and treatment of growth disorders, by defining normal patterns of growth and body composition, the interplay of growth and maturation, the role of environmental, behavioral and genetic factors, and the long-term consequences of growth patterns. Examples will be given based on two common genetic disorders, cystic fibrosis and sickle-cell anemia, to highlight the relationships between growth failure, survival, and malnutrition. Also, a study of bone mineral accretion in children with cystic fibrosis will illustrate the importance of understanding patterns of growth in healthy children, and their application in the diagnosis and management of children with chronic disease. These examples accentuate the need for continued participation of human biologists in the study of growth and development and the care of children.
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