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Bone tissue and hyperhomocysteinemia
1Service de Rhumatologie et Pôle ostéo-articulaire, CHU d'Angers, Inserm U922, Faculté de Médecine d'Angers, 49933 Angers Cedex, France. relevasseur@chu-angers.fr
Joint Bone Spine
|February 17, 2009
Summary
Homocysteine elevations can negatively impact bone strength by affecting collagen. Identifying causes and supplementing vitamins may improve bone, vascular, and general health.
Area of Science:
- Biochemistry
- Orthopedics
- Genetics
Background:
- Bone quality depends on architecture and collagen type 1 mechanical properties.
- Homocysteinuria, a genetic disorder, causes hyperhomocysteinemia and reduces bone strength.
- The impact of minor homocysteine elevations on bone is challenging to study clinically.
Purpose of the Study:
- To explore the relationship between homocysteine levels and bone tissue quality.
- To evaluate the potential role of homocysteine assays in detecting bone frailty.
- To provide clinical recommendations for managing patients with potential homocysteine elevation.
Main Methods:
- Review of existing animal and human studies on homocysteine and bone.
- Analysis of the effects of homocysteine on collagen crosslinks and bone remodeling.
- Consideration of clinical practice guidelines for managing hyperhomocysteinemia.
Main Results:
- Homocysteine may weaken collagen crosslinks and interfere with bone remodeling.
- Clinical evidence for minor homocysteine elevations' effect on bone is limited.
- Routine homocysteine assays for bone frailty are not clearly established.
Conclusions:
- Focus clinical practice on identifying causes of homocysteine elevation, such as medications.
- Recommend vitamin D and folic acid supplementation for at-risk patients.
- Improved homocysteine management may benefit bone, vascular, and overall health.
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