Home > Journals > Biology and research > Annales de Biologie Clinique > summary
 
      Advanced search    Shopping cart    French version 
 
Latest books
Catalogue/Search
Collections
All journals
Medicine
Biology and research
Annales de Biologie Clinique
- Current issue
- Archives
- Subscribe
- Order an issue
- More information
Public health
Agronomy and biotech.
My account
Forgotten password?
Online account   activation
Subscribe
Licences IP
- Instructions for use
- Estimate request form
- Licence agreement
Order an issue
Pay-per-view articles
Newsletters
How can I publish?
Journals
Books
Help for advertisers
Foreign rights
Book sales agents



 

Texte intégral de l'article
 
Printable version

Biochemical markers of bone turnover : clinical usefulness in osteoporosis


Annales de Biologie Clinique. Volume 57, Number 2, 137-48, Mars - Avril 1999, Revues générales

Résumé   Article gratuit  

Author(s) : P. Garnero, P.-D. Delmas

Summary : The recent development of specific and sensitive biochemical markers reflecting the overall rate of bone formation and bone resorption, has markedly improved the non invasive assessment of bone turnover in various metabolic bone diseases, especially for osteoporosis. The immunoassay of human osteocalcin recognizing the intact molecule and its major proteolytic fragment, assays for bone alkaline phosphatase and the intact form of the N-terminal extension propeptide of type I collagen are currently the most sensitive markers to assess bone formation. The best indices of bone resorption are the new immunoassays for the pyridinoline crosslinks and type I collagen related peptides in urine, but also very recently available in serum. Using these new markers, several studies have shown that bone turnover increases markedly after the menopause and remains elevated in late postmenopausal and elderly women. An increased bone turnover rate is related to a fast rate of bone loss in postmenopausal women and to a decreased bone mass in elderly women. Recent data suggest that some of the new immunoassays for pyridinoline crosslinks and related peptides could predict the subsequent risk of hip fracture in elderly women. Thus, bone markers might be used in combination with bone mass measurement to improve the prognostic assessment of postmenopausal women, i.e. their risk of developing osteoporosis and ultimately fractures. Treatment of postmenopausal women with antiresorptive drugs such as estrogens, bisphosphonates and calcitonin is followed by rapid decrease of the levels of bone markers that is correlated with the long term increase of bone mass as assessed by dual-energy X ray absorptiometry measurement. Thus, bone markers should be useful in monitoring treatment efficacy in patients with osteoporosis. Appropriate combination of the most efficient markers of bone formation and resorption will probably provide a powerful tool in the clinical investigation of osteoporosis.

Keywords : Bone markers – Osteoporosis – Osteocalcin – Alkaline phosphatase – Pyridinoline.

 

About us - Contact us - Conditions of use - Secure payment
Latest news - Conferences
Copyright © 2007 John Libbey Eurotext - All rights reserved
[ Legal information - Powered by Dolomède ]