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Relationships between fat and bone.

I R Reid1

  • 1University of Auckland, Auckland, New Zealand. i.reid@auckland.ac.nz

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|October 30, 2007
PubMed
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Body weight, influenced by fat and lean mass, is a significant risk factor for fractures. Maintaining a healthy weight is crucial for preventing osteoporosis and bone density loss.

Area of Science:

  • Bone biology and metabolic health.

Background:

  • Body weight is a critical factor influencing bone turnover and density, comparable in importance to age for fracture risk.
  • Both fat mass and lean mass contribute to body weight's skeletal effects, with fat mass being particularly significant in postmenopausal women.

Purpose of the Study:

  • To explore the multifaceted relationship between body weight components (fat and lean mass) and bone health.
  • To elucidate the mechanisms linking adiposity to bone metabolism, including hormonal and mechanical factors.
  • To highlight the implications for osteoporosis prevention and treatment.

Main Methods:

  • Review of existing literature on body weight, body composition, and bone health.
  • Analysis of proposed mechanisms, including skeletal loading, hormonal secretions (insulin, amylin, preptin, estrogens, leptin), and novel nutritional hormones.

Related Experiment Videos

  • Clinical association studies examining fat mass and bone density in various populations.

    • Main Results:

    • Body weight, encompassing both fat and lean mass, is a major determinant of bone density and turnover.
    • Fat mass plays a crucial role, especially in postmenopausal women, through mechanical loading and the secretion of bone-active hormones like estrogens and leptin.
    • Hormonal pathways involving insulin, amylin, and preptin from pancreatic beta cells also contribute to the fat-bone relationship.

    Conclusions:

    • The interplay between body weight, particularly fat mass, and bone health is complex, involving mechanical and endocrine factors.
    • Further research into novel nutritional hormones is essential for a comprehensive understanding of bone biology.
    • Weight maintenance is a vital public health strategy for osteoporosis prevention, and understanding these mechanisms may lead to new therapeutic approaches.