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The infancy-childhood-puberty model of growth: clinical aspects
W Y Tse1, P C Hindmarsh, C G Brook
1Endocrine Unit, Middlesex Hospital, London, UK.
Insights
The infancy-childhood-puberty (ICP) growth model analyzes human development in three stages. This model helps detect growth abnormalities for timely intervention and therapy monitoring.
Area of Science:
- Human growth and development
- Pediatric endocrinology
- Biomathematics
Background:
- Human growth is a complex process from intrauterine life to maturity.
- Distinct biological mechanisms influence different growth phases.
- Understanding these phases is crucial for identifying growth disorders.
Purpose of the Study:
- To present the infancy-childhood-puberty (ICP) growth model.
- To describe the mathematical analysis and biological control of each growth component.
- To highlight the utility of the ICP model in detecting and managing growth abnormalities.
Main Methods:
- Mathematical analysis of three additive growth components: infancy, childhood, and puberty.
- Identification of distinct biological control mechanisms for each component.
- Application of the ICP model for abnormality detection and therapeutic monitoring.
Main Results:
- The infancy component is primarily nutrition-dependent.
- The childhood component is largely growth hormone (GH)-dependent.
- The pubertal component relies on the synergy between sex steroids and GH.
Conclusions:
- The ICP model provides a framework for understanding human growth.
- It allows for the mathematical analysis and biological characterization of growth phases.
- The model facilitates early detection and targeted intervention for growth abnormalities.
Abstract:
The infancy-childhood-puberty (ICP) growth model describes human growth from the latter half of the intrauterine life to maturity as three additive and partly superimposed components--infancy, childhood and puberty. Each component can be analysed mathematically and appears to be controlled by distinct biological mechanisms. The infancy component is largely nutrition dependent, the childhood component is mostly dependent on growth hormone (GH) and the pubertal component depends on the synergism between sex steroids and GH. The ICP model offers a method for detecting abnormalities in the three components, so that early intervention can be targeted and therapy monitored.