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Related Experiment Videos

New developments in biochemical markers for osteoporosis

P Garnero1, P D Delmas

  • 1INSERM Research Unit 403, Hôpital E. Herriot, Pavillion F, 69437 Lyon Cedex 03, Lyon, France.

Calcified Tissue International
|January 1, 1996
PubMed
Summary

New bone turnover markers offer precise assessment of osteoporosis risk and treatment effectiveness in postmenopausal women. These markers help predict fracture risk and monitor therapy, improving patient prognosis.

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Area of Science:

  • Biochemistry
  • Orthopedics
  • Endocrinology

Background:

  • Noninvasive assessment of bone turnover has advanced with sensitive and specific markers for bone formation and resorption.
  • Key markers include alkaline phosphatase, osteocalcin, and collagen peptides for formation, and tartrate-resistant acid phosphatase and collagen degradation products for resorption.

Purpose of the Study:

  • To review the latest advancements in noninvasive bone turnover markers.
  • To evaluate their role in assessing osteoporosis, predicting fracture risk, and monitoring treatment efficacy in postmenopausal women.

Main Methods:

  • Immunoassays for osteocalcin and bone alkaline phosphatase (formation markers).
  • High-pressure liquid chromatography or immunoassays for pyridinium crosslinks (resorption markers).

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  • Analysis of bone turnover rates in relation to menopausal status, age, and bone loss.

    • Main Results:

    • Bone turnover increases post-menopause and remains elevated in elderly women, correlating with bone loss and decreased bone mass.
    • Pyridinium crosslink immunoassays show potential in predicting hip fracture risk in elderly women.
    • Antiresorptive treatments rapidly decrease bone marker levels, correlating with improved bone mass.

    Conclusions:

    • Sensitive bone markers like osteocalcin, bone alkaline phosphatase, and pyridinium crosslinks are crucial for clinical osteoporosis assessment.
    • These markers, combined with bone mass measurements, can improve prognostic assessment and fracture risk prediction in postmenopausal women.
    • Bone markers are highly valuable for monitoring the efficacy of osteoporosis treatments.