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Bones for the future.

I T Boyle1

  • 1University Department of Medicine, Glasgow Royal Infirmary, UK.

Acta Paediatrica Scandinavica. Supplement
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

Metabolic bone disease has shifted from rickets to osteoporosis, causing fractures in older adults. Hormone replacement therapy is key for preventing post-menopausal fractures, as calcium intake has limited impact.

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Area of Science:

  • Bone Metabolism and Public Health
  • Nutritional Epidemiology
  • Geriatric Medicine

Background:

  • The primary bone health concern in Northern Europe has evolved from rickets/osteomalacia to osteoporosis, leading to increased fractures in the elderly.
  • While vitamin D metabolism and air pollution were implicated in past rickets epidemics, persistent issues in specific populations highlight the importance of other dietary factors.
  • Technological advancements in bone mass measurement enable better understanding of factors affecting bone density and fracture risk.

Purpose of the Study:

  • To examine the evolving landscape of metabolic bone diseases in Northern Europe.
  • To reassess the role of dietary factors beyond vitamin D in bone health.
  • To investigate the determinants of bone mass and fracture incidence, particularly in relation to aging and menopause.

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Main Methods:

  • Review of historical trends in metabolic bone disease prevalence.
  • Analysis of factors influencing bone mass accrual and maintenance.
  • Evaluation of the impact of dietary calcium, vitamin D, and lifestyle on bone health.
  • Assessment of the efficacy of hormone replacement therapy (HRT) and calcium supplementation in preventing fractures.

Main Results:

  • Peak bone mass may be influenced by childhood calcium intake, but optimal levels remain undefined.
  • Menopause significantly reduces bone mass in women, a process largely unaffected by calcium but potentially halted by estrogen therapy.
  • Negative calcium balance in post-menopausal osteoporosis appears to be a consequence, not a cause, with high calcium intake showing limited benefit.
  • Lifestyle factors like exercise and smoking may play a role, but hormone replacement therapy shows the most significant impact on reducing post-menopausal fractures.

Conclusions:

  • The shift from rickets to osteoporosis signifies a major change in bone health challenges.
  • Dietary calcium's role in preventing post-menopausal osteoporosis is limited; high intake is often required for minimal effect.
  • Hormone replacement therapy is the most effective intervention for mitigating the risk of fractures associated with post-menopausal bone loss.