rhPTH(1-34)对骨质疏松大鼠的作用及对sclerostin的影响Therapeutic effect of human parathyroid hormone1-34 (rhPTH1-34) on osteoporosis of ovariectomized rats
富勇;唐永亮;赵承斌;张军;
摘要(Abstract):
[目的]探讨人重组甲状旁腺素1-34(rhPTH1-34)对骨质疏松的治疗作用以及与血钙、磷代谢和生长因子的关系。[方法]用摘除大鼠双侧卵巢的方式制备骨质疏松模型,实验动物分为3个组:模型对照组(OVX组,摘除大鼠双侧卵巢不作任何处理);rhPTH1-34治疗组(PTH组,摘除大鼠双侧卵巢12周后用rhPTH1-34治疗8周);假手术组(sham组,仅切除卵巢周围的脂肪组织约3 g,术后12周纳入实验)。应用第4代双能X线骨密度仪测量大鼠股骨上段骨密度值(BMD);用ELISA法测定血清硬化蛋白(sclerostin)水平及骨钙素(BGP)浓度;用自动生化仪测定血清碱性磷酸酶(ALP)。[结果]rhPTH1-34治疗组、sham组均较OVX组股骨上段骨密度增高,组间比较差异有显著性(P<0.01)。rhPTH1-34治疗组血清BGP浓度值升高及sclerostin值降低,与OVX组比较差异有显著性(P<0.01)。各组血清钙、磷含量无明显变化,与OVX组比较差异无显著性,ALP值治疗组与OVX组无明显差异。[结论]rhPTH1-34能够预防股骨上段骨密度丢失,并且血清BGP浓度值升高及sclerostin值降低,但对Ca、P、ALP含量无明显作用。
关键词(KeyWords): 人重组甲状旁腺素;骨密度;硬化蛋白;碱性磷酸酶;骨钙素
基金项目(Foundation): 黑龙江省科技攻关计划(项目编号:GC07C34884)
作者(Author): 富勇;唐永亮;赵承斌;张军;
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DOI:
参考文献(References):
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