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Fibroblast growth factor stimulates bone formation. Bone induction studied in rats
1Lund University Hospital Department of Orthopedics, Sweden.
Acta Orthopaedica Scandinavica
|August 1, 1989
Summary
Adding basic fibroblast growth factor (FGF) to demineralized bone matrix implants significantly enhanced new bone formation in rats. FGF-treated implants showed 25% more mineralized tissue compared to controls, indicating its potential in bone regeneration therapies.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Orthopedic Research
Background:
- Demineralized bone matrix (DBM) implantation in rodents stimulates new bone formation.
- This osteoinductive process is initiated by bone matrix proteins.
- Local growth factors may modulate bone formation post-initiation.
Purpose of the Study:
- To investigate the effect of adding recombinant human basic fibroblast growth factor (FGF) to DBM implants.
- To quantify the impact of FGF on bone formation induced by DBM.
Main Methods:
- Pairs of demineralized rat femoral diaphyses were implanted intramuscularly.
- One implant per pair received a gel containing 75 ng of FGF; the other served as a control (gel only or untreated).
- Bone formation was assessed after 3 weeks.
Main Results:
- All implants induced bone formation.
- FGF-treated implants demonstrated a 25% increase in mineralized tissue compared to untreated controls.
- Carboxymethyl cellulose gel alone did not influence bone yield.
Conclusions:
- Recombinant human basic fibroblast growth factor (FGF) enhances bone formation when combined with demineralized bone matrix.
- FGF shows promise as a therapeutic agent to augment bone regeneration strategies.
- DBM combined with FGF offers a potential for improved outcomes in bone defect repair.