张胜强;张柳;王文雅;田发明;李震;程潭;

• 1:华北煤炭医学院附属医院骨外科
• 2:华北煤炭医学院病理教研室

摘要(Abstract)：

[目的]观察降钙素对去卵巢大鼠腰椎骨量和椎间盘退变的作用。[方法]30只3个月龄Sprague-Dawley(SD)大鼠,随机均分为3组,每组10只:假手术(Sham)组,去卵巢(OVX)组,去卵巢+降钙素(OVX+CT)组。3个月后处死动物,并于处死前10d和4d分别给予四环素和钙黄绿素双荧光标记。取L2～4椎体进行骨密度及骨组织形态计量学分析,L4～5腰椎及椎间盘进行VG染色,运用免疫组化检测椎间盘MMP-13的表达,观察椎间盘的病理学改变并根据组织学评分系统对腰椎间盘的退变程度(LVD)进行评分。[结果](1)腰椎间盘评分:OVX+V组显著高于Sham组及OVX+CT组;(2)腰椎骨密度及骨形态计量学骨量参数(BV/TV,Tb.N):OVX+V组显著低于Sham组及OVX+CT组;(3)免疫组化:OVX+V组大鼠椎间盘中基质金属蛋白酶MMP-13表达显著高于OVX+CT组、Sham组。[结论]降钙素可预防去卵巢大鼠腰椎间盘的退变,其作用机制可能与维持椎体骨量及微观结构,同时降低椎间盘中MMP-13的表达抑制基质的降解有关。

关键词(KeyWords)： 椎间盘退变;降钙素;基质金属蛋白酶-13;骨组织形态计量学

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张胜强;张柳;王文雅;田发明;李震;程潭;

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参考文献(References)：

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