中国临床解剖学杂志 ›› 2015, Vol. 33 ›› Issue (2): 204-208.doi: 10.13418/j.issn.1001-165x.201

• 实验研究 • 上一篇    下一篇

去卵巢联合糖皮质激素诱发兔骨质疏松模型的研究

张远华1,  苏艳杰2,  黄潮桐3   

  1. 1.广州市番禺区南村医院, 广州511442;   2.香港中文大学深圳研究院, 深圳518057;
    3.广东医学院附属厚街医院, 广东 东莞 523945
  • 收稿日期:2014-12-04 发布日期:2015-04-21
  • 通讯作者: 黄潮桐,教授,主任医师,硕士生导师,E-mail: myhct@medmail.com.cn E-mail:mail:yuanhua9901186@163.com
  • 作者简介:张远华(1980-),男,湖北省黄冈市人,医学硕士,主治医师, 研究方向:骨质疏松与数字骨科学,Tel:13543436469

The research of ovariectomy  combined with glucocorticoid for induction of osteoporosis in rabbits

ZHANG Yuan-hua1,    SU Yan-jie2,    HUANG Chao-tong3   

  1. 1.Nancun Hospital of Panyu District, Guangzhou 511442, China; 2.The Chinese University of Hong Kong Shenzhen Research, Shenzhen 518057, China; 3.Institute Affiliated Houjie Hospital of Guangdong Medical College, Dongguan 523945, China
  • Received:2014-12-04 Published:2015-04-21

摘要:

目的 建立去卵巢联合糖皮质激素致兔骨质疏松模型,探讨去卵巢联合糖皮质激素对兔骨代谢的影响。 方法   将18只新西兰雌兔随机分为3组:假手术组(SHAM,生理盐水5 ml·kg-1·d-1);去卵巢组(OVX,生理盐水5 ml/kg/d);去卵巢联合糖皮质激素组(OVX+GC,地塞米松1 mg·kg-1·d-1)。实验第0、3和6周,检测各组大白兔腰椎(3~6)和右侧股骨的骨密度。实验结束时,取右侧股骨进行生物力学检测;取第3腰椎进行骨组织形态计量学检测。 结果   与SHAM组相比,OVX+GC组大白兔骨密度、骨生物力学性能(最大载荷、断裂载荷等)、骨小梁面积百分数、骨小梁厚度和骨小梁数量均显著降低(P<0.05),骨小梁分离度显著升高(P<0.05),而OVX组大白兔的均无显著差异。 结论   去卵巢联合糖皮质激素法建立兔骨质疏松模型切实可行,而且效果优于单纯去卵巢兔骨质疏松模型。

关键词: 去卵巢, 糖皮质激素, 骨质疏松,

Abstract:

Objective   To explore the effect of ovariectomy combined with glucocorticoid on rabbits bone metabolism and develop a new method for inducing osteoporosis in rabbits.   Method   18 New Zealand female rabbits were randomly divided into 3 groups: Sham-operated group (SHAM, Physiological saline 5 ml·kg-1·d-1);  ovariectomy group (OVX, Physiological saline 5 ml·kg-1·d-1); ovariectomy combined with glucocorticoid group (OVX +GC, Dexamethasone 1 mg·kg-1·d-1). The femoral bone mineral density (BMD) of the rabbit lumbar (3~6) and the right femoral were assessed at  0, 3 and 6-week, respectively. At the end of the experiment, the right femur biomechanics and the third lumbar vertebra bone tissue morphology metrology were determined.   Result  Compared with Sham-operated group, the BMD, the bone biomechanics (maximum load, fracture load) , the trabecular bone area percentage, the bone trabecular thickness and the bone trabecular number in the ovariectomy combined with glucocorticoid group were significantly decreased (P<0.05), the bone separating degree were significantly increased(P<0.05), while the ovariectomy group was not significantly different.  Conclusion   The method of ovariectomy combined with glucocorticoid is better at induction of osteoporosis in rabbits than ovariectomy alone and it is a feasible approach.

Key words: Ovariectomy, Glucocorticoid, Osteoporosis, Rabbits

中图分类号: