补肾活血法通过 Wnt/β-catenin 信号通路缓解绝经后骨质疏松
摘要
采用随机数字表达随机分为 4 组,每组 10 只,分别为假手术组、去势手术组、补肾活血汤低剂量组及补肾活血汤高剂量组,
假手术组和去势手术组给予 0.9% 的生理盐水灌胃,低剂量组和高剂量组分别以 6.1g/kg 及 18.1g/kg,每日给药两次,12 周
后将小鼠处死,取血液及骨组织进行检测。通过 ELISA 实验检测骨生化指标;通过 Micro-CT 检测骨密度参数及骨小梁参数;
通过骨组织 HE 染色观察骨组织病理形态变化;通过 Western blot 检测 Wnt 及 β-catenin 蛋白。结果:实验表明相比于其他组,
去势手术组小鼠的Ca和P的水平明显降低;Micro-CT结果显示,药物组BV/TV、Tb.N、Tb.Th显著高于去势手术组(P<0.05),
Tb.Sp 显著低于去势手术组(P<0.05);骨组织 HE 染色显示药物组骨小梁的明显多于去势手术组;Western blot 结果显示
相比于去势手术组,药物组 Wnt 蛋白及 β-catenin 蛋白表达明显增加(P<0.05)。结论:补肾活血法具有良好的防治骨丢
失功效,且这种效果是通过Wnt/β-catenin信号通路来调控,该研究为临床使用补肾活血法用于治疗骨质疏松提供理论基础。
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