Clinical disorders of bone resorption.

Area of Science:

• Bone biology and metabolic disorders.
• Pharmacology of bone resorption inhibitors.

Background:

• Bone is metabolically active, with continuous remodeling throughout life.
• Increased bone resorption causes common disorders like osteoporosis, Paget's disease, and cancer-related bone changes.
• Reduced bone resorption is less common, often genetic (e.g., osteopetrosis).

Purpose of the Study:

• To review common bone resorption disorders and their treatments.
• To highlight the role of bisphosphonates in managing increased bone resorption.
• To discuss the potential for new therapeutic agents based on bone biology.

Main Methods:

• Review of clinical disorders of bone resorption.
• Discussion of current therapeutic strategies, including bisphosphonates, estrogens, SERMs, and calcitonin.
• Exploration of recent advances in understanding bone biology and drug mechanisms.

Main Results:

• Osteoporosis is the most prevalent disorder, affecting many postmenopausal women.
• Bisphosphonates are the most common drugs used to treat increased bone resorption.
• Elucidation of drug mechanisms and bone biology offers avenues for novel treatments.

Conclusions:

• Effective management of bone resorption disorders relies on inhibiting bone breakdown.
• Continued research into bone biology is crucial for developing improved and novel therapeutic agents.
• Understanding regulatory mechanisms in bone biology presents opportunities for future drug development.