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趋化素样因子1在大鼠腹主动脉瘤病情发展中的作用 被引量:2

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摘要 目的探讨氢气抑制趋化素样因子1(Cklf1)在大鼠腹主动脉瘤病情发展中的作用。方法取雄性SD大鼠20只,随机分为腹主动脉瘤组和腹主动脉瘤干预组(腹腔注射氢气饱和生理盐水),建立腹主动脉瘤模型。术后28 d开腹取材,观察腹主动脉扩张情况,采用苏木素-伊红(HE)染色和弹力纤维染色检测炎症浸润和腹主动脉中膜弹力纤维破坏情况,免疫组化法检测Cklf1(r Cklf1)、金属蛋白酶(MMP2)蛋白表达情况,RT-PCR检测r Cklf1、MMP2基因表达情况。结果腹主动脉瘤组大鼠腹主动脉扩张率明显高于腹主动脉瘤干预组(P<0.01)。腹主动脉瘤组大鼠瘤壁r Cklf1 mRNA、MMP2 mRNA表达量均明显高于腹主动脉瘤干预组(P<0.01);r Cklf1、MMP2主要在腹主动脉瘤壁中层病变严重区域表达上调;与腹主动脉瘤组相比,干预组r Cklf1、MMP2阳性表达明显减弱,炎症浸润、弹力纤维破坏程度明显减轻。结论氢气可通过抑制r Cklf1表达,抑制炎性细胞向腹主动脉受损区域聚集,降低MMP2表达合成,减缓中膜弹力纤维降解,干预腹主动脉瘤进展。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2016年第6期1287-1288,共2页 Chinese Journal of Gerontology
基金 福建省自然科学基金(No.2014J01323)
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