英语语法分析

CONCLUSION: Oxiracetam and piracetam had similar therapeutic effect and safety on VD.

结论：奥拉西坦对血管性痴呆的疗效和安全性与吡拉西坦相近。

Conclusion Oxiracetam has the positive effect of VD and adverse reactions were mild but similar to piracetam.

结论奥拉西坦治疗VD的疗效肯定，不良反应轻微，与吡拉西坦相似。

Conclusions Compound piracetam can prevent OVX osteoporosis, increase BMD and improve the biomechanical properties of the femur.

目的探讨复方脑复康对去卵巢(OVX)骨质疏松大鼠股骨骨密度及股骨生物力学的影响。