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Related Experiment Videos

Morphological and physiological changes during growth: an update.

A Ballabriga1

  • 1Autonomous University of Barcelona, Department of Pediatrics, Spain. tberry@alehop.com

European Journal of Clinical Nutrition
|May 11, 2000
PubMed
Summary
This summary is machine-generated.

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Achieving peak bone mass during childhood and adolescence is crucial for preventing osteoporosis. Adequate calcium intake and understanding bone growth processes, including ossification and mineralization, are key factors.

Area of Science:

  • Pediatric Endocrinology
  • Bone Biology
  • Human Growth and Development

Background:

  • Skeletal growth involves complex changes in body composition, with significant gender differences in body mass index and lean body mass.
  • Bone ossification occurs via endochondral (from cartilage) and intramembranous (from mesenchyme) pathways.
  • Bone growth and mineralization are simultaneous processes vital for achieving peak bone mass.

Purpose of the Study:

  • To elucidate the critical factors influencing skeletal growth and peak bone mass acquisition during childhood and adolescence.
  • To highlight the importance of calcium balance and mineralization processes for long-term bone health.
  • To explore the role of hormonal factors, such as leptin, in pubertal development and bone mass accrual.

Main Methods:

Related Experiment Videos

  • Review of skeletal growth mechanisms, including endochondral and intramembranous ossification.
  • Analysis of body composition changes and their relation to age and gender.
  • Examination of calcium balance, bone mineralization, and hormonal influences (e.g., vitamin D, estrogen, leptin) on bone mass.

Main Results:

  • Peak bone mass achievement during adolescence is essential to mitigate future osteoporosis risk.
  • Positive calcium balance during adolescence is necessary for maximizing bone mass, with retention plateauing at higher intakes.
  • Leptin levels increase before puberty, with higher levels in girls, suggesting a link between adipose tissue and puberty onset.

Conclusions:

  • Childhood and adolescence are critical periods for establishing bone mass to prevent later-life osteoporosis.
  • Understanding the polygenic regulation of bone mass and the influence of factors like calcium and hormones is vital.
  • Leptin may play a significant role in mediating the relationship between adipose tissue and pubertal development.