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辛伐他汀对DH豚鼠自发性膝骨性关节炎关节软骨退变的影响 被引量:1

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摘要 目的探讨辛伐他汀灌胃干预对DH豚鼠原发性膝骨关节炎(OA)关节软骨退变的影响。方法 3个月龄DH豚鼠18只,6只在实验开始时处死(基线组),其余12只分别给予辛伐他汀(20 mg·kg-1·d-1)(辛伐他汀组)或生理盐水灌胃(对照组),6个月后处死所有动物。留取静脉血备行酶联免疫吸附(ELISA)检测分析白细胞介素(IL)-1β的表达;取膝关节股骨行常规石蜡包埋,经Van Gieson(VG)染色及国际骨性关节炎研究协会(OARSI)评分,评价软骨退变情况,免疫组化染色检测IL-1β的表达;对胫骨软骨下骨行Micro-CT分析骨密度(BMD)、相对体积(BV/TV)、骨小梁厚度(Tb.Th)、骨小梁数量(Tb.N)及结构模型指数(SMI)。结果 1血清学指标:辛伐他汀组和对照组IL-1β水平显著高于基线组,辛伐他汀组显著低于对照组(P<0.05);2关节软骨组织学评价:与基线组相比,对照组关节软骨出现退变表现,OARSI评分显著升高(P<0.05),辛伐他汀组与对照组无显著差别;3免疫组化染色结果提示辛伐他汀组和对照组关节软骨IL-1β的表达水平显著高于基线组,但辛伐他汀组和对照组无显著区别;4软骨下骨Micro CT检测结果:辛伐他汀组及对照软骨下骨BMD、Tb.Th显著高于基线组,SMI显著低于基线组(P<0.05),辛伐他汀组与对照组无显著差别。结论辛伐他汀系统性干预可降低DH豚鼠血IL-1β水平,但不能抑制其膝关节软骨自发性退变及软骨下骨骨量和微观结构的改变。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2016年第6期1291-1293,共3页 Chinese Journal of Gerontology
基金 河北省高等学校科学研究计划(No.QN20131007) 河北省自然科学基金(No.H2013209255)
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