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Puberty and bone development.
Giuseppe Saggese1, Giampiero Igli Baroncelli, Silvano Bertelloni
1Endocrine Unit, Division of Pediatrics, Department of Reproductive Medicine and Pediatrics, University of Pisa, Via Roma 35, I-56125 Pisa, Italy. g.saggese@clp.med.unipi.it
Summary
Puberty significantly boosts bone development, with sex steroids, growth hormone, and vitamin D being key factors. Understanding these interactions is crucial for achieving peak bone mass and preventing osteoporosis later in life.
Area of Science:
- Endocrinology
- Bone Biology
- Adolescent Health
Background:
- Puberty is critical for bone development, nearly doubling skeletal mass.
- Peak bone mass achieved during adolescence influences lifelong fracture risk.
- Factors influencing pubertal bone accrual include hormones, vitamin D, and muscle mass.
Purpose of the Study:
- To elucidate the key determinants of bone mass accrual during puberty.
- To understand the roles of sex steroids, growth hormone, and vitamin D in bone development.
- To highlight the significance of pubertal bone gain for preventing age-related osteoporosis.
Main Methods:
- Review of existing literature on pubertal bone development.
- Analysis of hormonal and nutritional factors affecting skeletal growth.
- Examination of the interplay between muscle mass and bone modeling.
Main Results:
- Sex steroids, growth hormone, insulin-like growth factors, and 1,25-dihydroxyvitamin D are primary drivers of pubertal bone gain.
- Muscle mass plays a regulatory role in bone modeling and remodeling.
- Calcium intake directly influences bone formation during this period.
Conclusions:
- Optimizing pubertal bone accrual is essential for establishing peak bone mass.
- Interactions among hormonal, nutritional, and physical factors require further investigation.
- Adequate bone mass in youth is a critical determinant for reducing osteoporosis risk in later life.