Objective： TO observe the effect of Huxin Formula （护心方, HXF） on expressions of the chief reverse cholesterol transport （RCT） associated genes, caveolin-1 and scavenger receptor-B I （SR-B I ） in ApoE-gene kno...Objective： TO observe the effect of Huxin Formula （护心方, HXF） on expressions of the chief reverse cholesterol transport （RCT） associated genes, caveolin-1 and scavenger receptor-B I （SR-B I ） in ApoE-gene knockout [ApoE （-/-）] mice. Methods： Thirty ApoE （-/-） mice of 4-6 weeks old were randomly divided into three groups （A-C）. After being fed with high-fat diet for 16 weeks, they were treated with HXF （1 mL/100 g）, pravachol （0.3 mg/100 g）, and saline in equal volume respectively for 16 weeks successively; in addition, a blank group was set up with 10 C57BL/6J mice of 6-week old received 16-week high-fat feeding and saline treatment. Animals were sacrificed at the termination of the experiment, their paraffin sections of aortic tissue were used to measure the size of plaque, expressions of cavolin-1 and SR-B I were detected by immunological histochemical method. Results： As compared with the blank group, levels of caveolin-1 and SR-B I were increased in Groups A and B （P〈0.01）; but the increase in Group A was more significant than that in Group B （P〈0.05）. The plaque/aorta area ratio decreased significantly in Groups A and B, but showed insignificant difference between the two groups. Conclusion： HXF could obviously increase the expressions of RCT associated genes, caveolin-1 and SR-B I, promote the RCT process, so as to reduce the formation of aorta atherosclerotic plaque in ApoE （-/-） mice.展开更多
目的:探讨南蛇藤素对高脂饲养ApoE基因敲除小鼠(ApoE-/-)主动脉粥样硬化斑块内CD40配体表达、巨噬细胞和平滑肌细胞数量的影响。方法:8周龄雄性ApoE-/-小鼠12只,随机分为南蛇藤素组或二甲基亚砜(DMSO)溶剂对照组,每组各6只。均给以高脂...目的:探讨南蛇藤素对高脂饲养ApoE基因敲除小鼠(ApoE-/-)主动脉粥样硬化斑块内CD40配体表达、巨噬细胞和平滑肌细胞数量的影响。方法:8周龄雄性ApoE-/-小鼠12只,随机分为南蛇藤素组或二甲基亚砜(DMSO)溶剂对照组,每组各6只。均给以高脂饲养8周,在高脂饲养的后4周,分别给予南蛇藤素2mg·kg-1.d-1或相当剂量的DMSO腹腔注射(ip)4周。麻醉处死小鼠后,取小鼠主动脉,以石蜡包埋,行主动脉根部连续切片.。免疫组化法检测主动脉粥样硬化斑块内CD40配体、CD68和平滑肌α-actin表达水平,以Image Pro Plus 6.0软件进行图像分析。结果:与对照组相比,南蛇藤素组主动脉粥样硬化斑块内CD40配体表达显著减少(P<0.05);巨噬细胞的阳性率显著降低(P<0.05);而两组间动脉粥样硬化斑块内平滑肌细胞的阳性率没有显著差异(P>0.05)。结论:南蛇藤素可能通过减少ApoE-/-小鼠粥样斑块内CD40配体的表达和巨噬细胞的聚集,抑制动脉粥样硬化斑块中炎症反应,而发挥稳定动脉粥样硬化斑块的作用。展开更多
目的探讨南蛇藤素对高脂饲养载脂蛋白E基因敲除小鼠在动脉粥样硬化病变形成的早期动脉壁内C反应蛋白和组织因子表达的影响。方法8周龄雄性载脂蛋白E基因敲除小鼠12只,随机分为南蛇藤素干预组或二甲基亚砜溶剂对照组,每组各6只。均给予...目的探讨南蛇藤素对高脂饲养载脂蛋白E基因敲除小鼠在动脉粥样硬化病变形成的早期动脉壁内C反应蛋白和组织因子表达的影响。方法8周龄雄性载脂蛋白E基因敲除小鼠12只,随机分为南蛇藤素干预组或二甲基亚砜溶剂对照组,每组各6只。均给予高脂饲养8周,在高脂饲养的后4周,分别给予南蛇藤素2mg/(kg·d)或相当剂量的二甲基亚砜腹腔注射。麻醉处死小鼠后,取小鼠主动脉,以石蜡包埋,行主动脉根部连续切片;以HE染色观察形态学变化,免疫组织化学法检测主动脉壁内C反应蛋白和组织因子的表达水平,以Image Pro Plus6.0软件进行图像分析。结果南蛇藤素干预组主动脉粥样硬化斑块面积明显小于对照组,分别为4947±1277μm2和8403±2535μm2(P<0.05);南蛇藤素组主动脉粥样斑块面积/血管壁面积比值明显小于对照组(P<0.05);南蛇藤素组动脉壁C反应蛋白表达水平较对照组明显减少,平均光密度值分别为0.0152±0.0052与0.0256±0.0026(P<0.05);动脉粥样硬化斑块内组织因子表达水平较对照组明显减少,平均光密度值分别为0.0326±0.0132与0.0763±0.0347(P<0.05)。结论南蛇藤素可能通过抑制载脂蛋白E基因敲除小鼠炎症反应和动脉壁中C反应蛋白的表达而发挥抗动脉粥样的作用;还可能通过减少粥样斑块中组织因子的产生,而进一步起到稳定动脉粥样硬化斑块的作用。展开更多
目的观察搜风祛痰中药复方稳斑汤对ApoE基因敲除小鼠动脉粥样硬化(AS)不稳定斑块动物模型的影响。方法 6～8周龄ApoE基因敲除小鼠制备AS不稳定斑块模型,分别给予阿托伐他汀以及不同剂量稳斑汤干预1个月,正常组采用生理盐水灌胃1个月。...目的观察搜风祛痰中药复方稳斑汤对ApoE基因敲除小鼠动脉粥样硬化(AS)不稳定斑块动物模型的影响。方法 6～8周龄ApoE基因敲除小鼠制备AS不稳定斑块模型,分别给予阿托伐他汀以及不同剂量稳斑汤干预1个月,正常组采用生理盐水灌胃1个月。取小鼠主动脉组织HE染色进行病理学观察,并采用免疫组化和RT-PCR技术检测HO-1和TLR4的表达水平。结果各组小鼠腹主动脉组织中HO-1的表达水平治疗组明显高于对照组(P<0.01),各组小鼠腹主动脉组织中TLR4的表达水平治疗组明显低于对照组(P<0.01)。结论 Apo E基因敲除小鼠AS不稳定斑块的形成与炎症因子密切相关,搜风祛痰中药复方稳斑汤可能通过调节HO-1和TLR4的表达而干预AS斑块形成及破裂。展开更多
基金Supported by the National Natural Science Foundation of China （No. 81102584）Guangdong Provincial Administration of Traditional Chinese Medicine （No. 2009386）
文摘Objective： TO observe the effect of Huxin Formula （护心方, HXF） on expressions of the chief reverse cholesterol transport （RCT） associated genes, caveolin-1 and scavenger receptor-B I （SR-B I ） in ApoE-gene knockout [ApoE （-/-）] mice. Methods： Thirty ApoE （-/-） mice of 4-6 weeks old were randomly divided into three groups （A-C）. After being fed with high-fat diet for 16 weeks, they were treated with HXF （1 mL/100 g）, pravachol （0.3 mg/100 g）, and saline in equal volume respectively for 16 weeks successively; in addition, a blank group was set up with 10 C57BL/6J mice of 6-week old received 16-week high-fat feeding and saline treatment. Animals were sacrificed at the termination of the experiment, their paraffin sections of aortic tissue were used to measure the size of plaque, expressions of cavolin-1 and SR-B I were detected by immunological histochemical method. Results： As compared with the blank group, levels of caveolin-1 and SR-B I were increased in Groups A and B （P〈0.01）; but the increase in Group A was more significant than that in Group B （P〈0.05）. The plaque/aorta area ratio decreased significantly in Groups A and B, but showed insignificant difference between the two groups. Conclusion： HXF could obviously increase the expressions of RCT associated genes, caveolin-1 and SR-B I, promote the RCT process, so as to reduce the formation of aorta atherosclerotic plaque in ApoE （-/-） mice.
文摘目的:探讨南蛇藤素对高脂饲养ApoE基因敲除小鼠(ApoE-/-)主动脉粥样硬化斑块内CD40配体表达、巨噬细胞和平滑肌细胞数量的影响。方法:8周龄雄性ApoE-/-小鼠12只,随机分为南蛇藤素组或二甲基亚砜(DMSO)溶剂对照组,每组各6只。均给以高脂饲养8周,在高脂饲养的后4周,分别给予南蛇藤素2mg·kg-1.d-1或相当剂量的DMSO腹腔注射(ip)4周。麻醉处死小鼠后,取小鼠主动脉,以石蜡包埋,行主动脉根部连续切片.。免疫组化法检测主动脉粥样硬化斑块内CD40配体、CD68和平滑肌α-actin表达水平,以Image Pro Plus 6.0软件进行图像分析。结果:与对照组相比,南蛇藤素组主动脉粥样硬化斑块内CD40配体表达显著减少(P<0.05);巨噬细胞的阳性率显著降低(P<0.05);而两组间动脉粥样硬化斑块内平滑肌细胞的阳性率没有显著差异(P>0.05)。结论:南蛇藤素可能通过减少ApoE-/-小鼠粥样斑块内CD40配体的表达和巨噬细胞的聚集,抑制动脉粥样硬化斑块中炎症反应,而发挥稳定动脉粥样硬化斑块的作用。
文摘目的探讨南蛇藤素对高脂饲养载脂蛋白E基因敲除小鼠在动脉粥样硬化病变形成的早期动脉壁内C反应蛋白和组织因子表达的影响。方法8周龄雄性载脂蛋白E基因敲除小鼠12只,随机分为南蛇藤素干预组或二甲基亚砜溶剂对照组,每组各6只。均给予高脂饲养8周,在高脂饲养的后4周,分别给予南蛇藤素2mg/(kg·d)或相当剂量的二甲基亚砜腹腔注射。麻醉处死小鼠后,取小鼠主动脉,以石蜡包埋,行主动脉根部连续切片;以HE染色观察形态学变化,免疫组织化学法检测主动脉壁内C反应蛋白和组织因子的表达水平,以Image Pro Plus6.0软件进行图像分析。结果南蛇藤素干预组主动脉粥样硬化斑块面积明显小于对照组,分别为4947±1277μm2和8403±2535μm2(P<0.05);南蛇藤素组主动脉粥样斑块面积/血管壁面积比值明显小于对照组(P<0.05);南蛇藤素组动脉壁C反应蛋白表达水平较对照组明显减少,平均光密度值分别为0.0152±0.0052与0.0256±0.0026(P<0.05);动脉粥样硬化斑块内组织因子表达水平较对照组明显减少,平均光密度值分别为0.0326±0.0132与0.0763±0.0347(P<0.05)。结论南蛇藤素可能通过抑制载脂蛋白E基因敲除小鼠炎症反应和动脉壁中C反应蛋白的表达而发挥抗动脉粥样的作用;还可能通过减少粥样斑块中组织因子的产生,而进一步起到稳定动脉粥样硬化斑块的作用。
文摘目的观察搜风祛痰中药复方稳斑汤对ApoE基因敲除小鼠动脉粥样硬化(AS)不稳定斑块动物模型的影响。方法 6～8周龄ApoE基因敲除小鼠制备AS不稳定斑块模型,分别给予阿托伐他汀以及不同剂量稳斑汤干预1个月,正常组采用生理盐水灌胃1个月。取小鼠主动脉组织HE染色进行病理学观察,并采用免疫组化和RT-PCR技术检测HO-1和TLR4的表达水平。结果各组小鼠腹主动脉组织中HO-1的表达水平治疗组明显高于对照组(P<0.01),各组小鼠腹主动脉组织中TLR4的表达水平治疗组明显低于对照组(P<0.01)。结论 Apo E基因敲除小鼠AS不稳定斑块的形成与炎症因子密切相关,搜风祛痰中药复方稳斑汤可能通过调节HO-1和TLR4的表达而干预AS斑块形成及破裂。
