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Pathogenesis of osteoporosis.

C J Rosen1

  • 1The Jackson Library, Bar Harbor, Maine, USA.

Bailliere'S Best Practice & Research. Clinical Endocrinology & Metabolism
|October 19, 2000
PubMed
Summary

Osteoporosis, a common bone disorder, is influenced by bone acquisition in youth and loss in adulthood. Understanding bone remodeling imbalances and molecular cues is key to developing future osteoporosis treatments.

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Area of Science:

  • Bone biology and osteoporosis research.

Background:

  • Osteoporosis is a prevalent condition, particularly in post-menopausal women, leading to fractures.
  • Low bone mineral density is a significant predictor of osteoporotic fractures.
  • Bone density is determined by adolescent acquisition and adult bone loss.

Purpose of the Study:

  • To clarify bone mass acquisition during adolescence.
  • To investigate adult bone loss and its determinants.
  • To identify molecular targets for future osteoporosis therapies.

Main Methods:

  • Review of recent studies on bone mass acquisition in adolescents.
  • Analysis of factors contributing to adult bone loss.
  • Elucidation of molecular mechanisms coupling bone formation and resorption.

Main Results:

  • Genetic factors significantly influence peak bone mass acquisition, interacting with environmental and hormonal factors.
  • Disorders in bone remodeling, favoring resorption over formation, contribute to bone loss.
  • Systemic factors like estrogen deprivation and parathyroid hormone impact bone remodeling balance.

Conclusions:

  • Understanding the interplay of genetics, environment, and hormones in bone acquisition is crucial.
  • Imbalances in bone remodeling are central to osteoporosis pathogenesis.
  • Identified molecular cues offer potential therapeutic targets for preventing osteoporosis and fractures.

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