橙皮苷对去卵巢骨质疏松症大鼠骨质流失和机制的影响

被引:14
作者
张晓文
马应卓
朱佳丽
李娟芳
王涛
机构
[1] 商洛学院健康管理学院护理系
关键词
橙皮苷; 去卵巢骨质疏松症; 骨质流失; OPG/RANKL/RANK信号通路;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的研究橙皮苷对去卵巢骨质疏松大鼠骨质流失和骨保护素(osteoprotegerin,OPG)/核因子kappa B配体的受体激活物(receptor activator of nuclear factor kappa B ligand,RANKL)/RANK通路的影响。方法将48只雌性Sprague-Dawley(SD)大鼠随机分为假手术组、去卵巢骨质疏松组、橙皮苷低剂量组、橙皮苷中剂量、橙皮苷高剂量组和雌激素组。检测骨组织骨体积分数(bone volume fraction,BV/TV)、骨小梁厚度(trabecular thickness,Tb.Th)、骨密度(bone mineral density,BMD)、骨小梁数量(trabecular number,Tb.N)、骨小梁分离度(trabecular separation,Tb.Sp),通过HE染色观察骨组织病理损伤,采用酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)检测人Ⅰ型胶原C端肽(C-terminal peptide collagen typeⅠ,CTX-Ⅰ)和血清骨钙素(bone glaprotein,BGP)的表达量。运用qRT-PCR和Western bolt分别检测骨组织OPG、RANKL、RANK的mRNA和蛋白表达。结果在橙皮苷治疗后,与去卵巢骨质疏松组相比,骨质疏松标志物BV/TV、BMD、Tb.Th和Tb.N水平升高,Tb.Sp水平降低;大鼠骨小梁数量明显增加,且骨小梁连接更为紧密;骨吸收标志物CTX-Ⅰ水平降低;骨形成标志物BGP水平升高。OPG mRNA相对表达量和蛋白的表达量升高,RANKL和RANK mRNA相对表达量和蛋白的表达量降低。结论橙皮苷能缓解去卵巢骨质疏松大鼠骨质流失并调节OPG/RANKL/RANK信号通路。
引用
收藏
页码:1283 / 1288
页数:6
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