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Sensitivity of bone to glucocorticoids
1Division of Medical Sciences, University of Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK. M.S.Cooper@bham.ac.uk
Clinical Science (London, England : 1979)
|April 29, 2004
Summary
Glucocorticoids harm bone by decreasing bone formation, increasing fracture risk. Individual sensitivity varies due to glucocorticoid-metabolizing enzymes in bone cells, potentially guiding new drug development.
Area of Science:
- Endocrinology
- Bone Biology
- Pharmacology
Background:
- Glucocorticoids are widely prescribed but cause significant bone damage.
- Individual susceptibility to glucocorticoid-induced bone complications varies greatly.
- The exact mechanisms of bone loss and individual differences remain unclear.
Purpose of the Study:
- To review current research on fracture risk associated with glucocorticoid use.
- To explore the mechanisms behind glucocorticoid-induced bone damage.
- To investigate factors contributing to individual sensitivity to these drugs.
Main Methods:
- Review of recent studies quantifying fracture risk.
- Analysis of proposed mechanisms for bone density reduction.
- Examination of factors influencing individual drug response.
Main Results:
- Glucocorticoids significantly increase fracture risk, primarily by reducing bone formation.
- Glucocorticoid-metabolizing enzymes in osteoblasts may determine individual sensitivity.
- Understanding these enzymes could lead to better risk assessment.
Conclusions:
- Glucocorticoid therapy poses a substantial risk to bone health, particularly fracture risk.
- Individual variations in drug metabolism within bone cells are key to understanding susceptibility.
- Targeting these metabolic pathways may enable the development of safer anti-inflammatory treatments.