The experiment lasted for 3 weeks. Nitric oxide(NO), osteocalcin(BGP), epidermal growth factor(EGF) and the bone mineral contents(BMCs) in 4 different sections of femur were detected.

• 观察指标:股骨颈、股骨干近1/3端、中1/3段和远1/3段4个不同部位一氧化氮(NO)、骨钙素(BGP)、表皮生长因子(EGF)的含量及矿盐含量。