Bone formation with the combination of simvastatin and calcium sulfate in critical-sized rat calvarial defect
Myat Nyan1, Daisuke Sato, Mitsumasa Oda
1Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan. myatnyan@gmail.com
Abstract:
Simvastatin, a cholesterol synthesis inhibitor, enhances BMP2 expression in osteoblasts. The purpose of the present study was to examine whether simvastatin stimulates bone regeneration when combined with calcium sulfate as a carrier. Critical-sized bone defects in rat calvaria were treated with calcium sulfate or with combination of 1 mg simvastatin and calcium sulfate. In the combination group, although the least amount of bone formation with intense soft tissue inflammation was observed at 2 and 4 weeks, remarkable bone formation was evident at 8 weeks. Conclusively, the combination of simvastatin and calcium sulfate stimulated bone regeneration in spite of the inflammatory response.
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