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葛根素对大鼠主动脉球囊损伤后血小板活化及凝血酶受体表达的影响 被引量:1

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摘要 目的研究球囊损伤后血管内膜增生的过程、血小板活化水平、凝血酶受体mRNA的变化及葛根素的影响。方法将72只雄性W istar大鼠随机分为对照组、手术组和葛根素治疗组,分别在术后3、7、14和28 d通过组织学检查、放射免疫法和逆转录聚合酶链反应技术检测内膜增生的情况、血小板表面GMP-140的数目、凝血酶受体mRNA的水平及葛根素〔50 mg/(kg.d)〕腹腔注射对它们的影响。结果①凝血酶受体mRNA在正常血管组织表达极弱,球囊损伤术后3 d已显著增加,术后14 d达峰值,术后28 d开始下降。②GMP-140于术后3 d明显升高,术后7 d开始下降。③术后3 d已有增殖的血管平滑肌细胞移行至内膜层;术后7 d内膜开始增生;术后14 d血管平滑肌细胞的增殖及内膜增生更为明显;术后28 d血管平滑肌细胞的增殖明显减弱,细胞外基质增加,内膜继续增生。④使用葛根素后血小板表面GMP-140的数目减少,血管平滑肌细胞的增殖减弱,但凝血酶受体mRNA表达及内膜增生程度未见明显变化。结论血管内皮损伤后内膜增生的过程中血小板活化、凝血酶受体mRNA表达增加,葛根素抑制血小板的活化及血管平滑肌细胞的增殖,但对凝血酶受体mRNA的表达及内膜增生的程度无明显影响。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2006年第3期365-367,共3页 Chinese Journal of Gerontology
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