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Calcium homeostasis and mineralization in puberty
1Department of Clinical Chemistry, Glostrup Hospital.
Danish Medical Bulletin
|April 1, 1989
Summary
Puberty significantly impacts bone mineralization, with serum phosphate and alkaline phosphatase levels increasing alongside growth spurts. Bone mineral content (BMC) shows a substantial increase, closely linked to testosterone secretion and growth phases during this critical period.
Area of Science:
- Endocrinology
- Pediatric Bone Health
- Mineral Metabolism
Background:
- Bone mineralization and calcium homeostasis are crucial during puberty, yet specific research in this area is limited.
- Understanding these processes is vital for assessing long-term skeletal health.
Purpose of the Study:
- To summarize current knowledge on calcium homeostasis and bone mineralization during puberty.
- To analyze the relationship between hormonal changes, mineral levels, and bone mineral content during pubertal development.
Main Methods:
- Review of existing studies and presentation of own research data.
- Utilized photon absorptiometry for precise measurement of bone mineral content (BMC).
- Analyzed serum concentrations of calcium, phosphate, magnesium, alkaline phosphatase, and androgens.
Main Results:
- Serum calcium remains stable, while phosphate and alkaline phosphatase increase with pubertal growth.
- Bone mineral content (BMC) increases significantly (up to 25%) in the year preceding peak height velocity (PHV).
- Increases in BMC correlate with testosterone secretion and alkaline phosphatase, peaking slightly after hormonal and growth surges.
Conclusions:
- Pubertal development involves dynamic changes in mineral metabolism and bone accretion.
- Bone mineral content (BMC) acquisition is closely tied to hormonal and growth changes during puberty.
- Longitudinal studies are valuable for understanding pubertal growth dynamics, while cross-sectional data aid in establishing reference ranges.