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首页> 中文期刊> 《中国药理学通报》 >“营卫通络方”对动脉粥样硬化早期颈动脉交感神经的调节作用

“营卫通络方”对动脉粥样硬化早期颈动脉交感神经的调节作用

         
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目的：观察“营卫通络方”对兔动脉粥样硬化早期交感神经的影响。方法将家兔随机分为正常组、高脂组、复合模型组、桂芍通络高( GSTL-H )、桂芍通络低( GSTL-L )剂量组,阿托伐他汀( ATO)组。正常组给予普通饲料,高脂组给予高脂饮食建立高脂血症模型,复合模型组及各用药组实施高脂饮食复合右侧颈动脉硅胶管包裹术。灌胃( ig)给药, qd,GSTL-H组给予桂芍通络0．6 g·kg-1·d-1,GSTL-L组给予桂芍通络0．3 g·kg-1·d-1,ATO组给予阿托伐他汀2．5 mg·kg-1·d-1,连续至4周时取材。生化法检测各组血脂水平变化,HE染色检测颈动脉形态学变化,ELISA法检测动脉壁中NE含量,免疫组化法检测NGF,TH分布密度, Western blot检测NGF及TH蛋白含量。结果与正常组相比,高脂组和复合模型组血清TC、TG、LDL-C水平明显升高；复合模型组内膜增生程度, NE 含量、交感神经分布密度(NGF,TH蛋白分布与表达)较高脂组更重(P<0．01)；与复合模型组相比,桂芍通络高、低剂量组可不同程度减轻血脂水平及内膜增生程度,降低管壁NE含量及交感神经密度( P<0．05,P<0．01)。结论“营卫通络方”-桂芍通络能够减轻兔颈动脉粥样硬化程度,其机制可能与调节动脉壁交感神经有关。%Aim To observe the effect of“Ying-nutrient and Wei-defense unblocking collaterals prescription”on the carotid sympathetic nerve in early atherosclero-sis. Methods The rabbits were randomly divided into 6 groups:Control group, high-fat group, Complex mod-el group, GSTL-H group, GSTL-L group and ATO group. The control group was fed with common food-stuffs, High-fat group with high-fat diet to build early atherosclerosis model, and all the other groups with high-fat diet combined with carotid artery cannula to build early atherosclerosis carotid artery injury rabbit model. All groups were given corresponding medicines intragastrically once a day for 4 weeks. The GSTL-H and GSTL-L group was given Guishaotongluo ultrafine powder 0. 6 g·kg-1·d-1, 0. 3 g·kg-1·d-1, and the ATO group was given suspension of atorvastain so-lution 2. 5 mg · kg-1 · d-1 . Biochemical method was used to detect blood lipid change. HE staining was ap-plied to observe the pathological morphology of intima-media, The content of NE in the carotid arterial was detected by ELISA. The immunohistochemical staining was used to detect the protein expression of NGF, TH around the carotid arterial. The expression of NGF, TH in the carotid artery adventitia was detected by Western blot. Results Compared with normal group, the levels of TC,TG and LDL-C in high-fat group and complex model group were significantly increased( P<0. 01). The degree of the intimal hyperplasia,the con-tent of NE and sympathetic density ( NGF, TH protein expression and distribution ) of the cartoid artery in complex model group were heavier compared with those in high-fat group; the lipid levels, degree of the inti-mal hyperplasia and sympathetic density ( NGF, TH protein expression and distribution ) in the GSTL-H, GSTL-L group were milder in varying degrees compa-ring with those in the complex model group(P<0. 05, P<0. 01 ) . Conclusion “Ying-nutrient and Wei-de-fense unblocking collaterals prescription” can reduce rabbit carotid atherosclerosis, and the mechanism may be related to regulating the sympathetic nerve of arterial wall.

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