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甘露消毒丹对湿热证大鼠内毒素转导信号的动态干预 被引量:16

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摘要 目的:观察甘露消毒丹对温病湿热证大鼠细胞内毒素特异性受体LBPmRNA、CD14mRNA、TL-R4mRNA及NF-κBp65表达变化的动态干预,深入探讨清热化湿方的治疗机制。方法:分为正常组、湿热模型组(高脂+高温高湿+大肠杆菌)、清热化湿组;采用逆转录-聚合酶链反应技术(RT-PCR)检测肝巨噬细胞LBPmRNA、CD14mRNA、TLR4mRNA,免疫组化技术检测肝巨噬细胞NF-κBp65活化。结果:模型组在感染6h、12h、24h等不同时相点LBPmRNA、CD14mRNA、TLR4mRNA、NF-κB表达非常显著增强,且不同时相点之间比较均有显著性差异,说明随着病程的发展,湿热模型LBPmRNA、CD14mRNA、TL-R4mRNA、NF-κB表达逐渐增强。治疗组6h、12h、24h等不同时相点比较,LBPmRNA、CD14mRNA、TL-R4mRNA表达减弱,具有非常显著性差异;24h时相点治疗组与模型组比较LBPmRNA、CD14mRNA、TL-R4mRNA表达减弱有非常显著性差异,但仍未恢复正常,与正常组比较仍有极显著性差异,说明LBPmR-NA遏制衰减是一个缓慢的过程。而治疗组NF-κB激活6h、12h、24h各时相点间比较均无显著性差异;且与正常组比较NF-κB激活均无显著性变化。结论:甘露消毒丹对温病湿热证大鼠肝巨噬细胞LBPm-RNA及NF-κB的激活具有较好的干预调控作用,能中止炎症介质的转录,限制急性炎症反应。
出处 《中医药学报》 CAS 2008年第4期43-45,共3页 Acta Chinese Medicine and Pharmacology
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参考文献4

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