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白藜芦醇对呼吸道合胞病毒感染小鼠肺部病毒滴度及其气道炎症的影响

, PP. 1924-1927

Keywords: 白藜芦醇,RSV,气道炎症,气道高反应

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Abstract:

目的研究白藜芦醇(resveratrol,RES)对呼吸道合胞病毒(respiratorysyncytialvirus,RSV)感染小鼠肺部病毒滴度及其所致气道炎症的影响。方法6~8周龄雌性BALB/c小鼠,环磷酰胺100mg/kg腹腔注射后,随机分为对照组、RSV感染组、白藜芦醇腹腔注射组、白藜芦醇雾化组,每组8只。环磷酰胺处理5d后,给予RSV滴鼻建立RSV感染模型,并在RSV感染1h后给予白藜芦醇30mg/(kg?d)腹腔注射和雾化吸入。5d后检测小鼠清醒状态下气道阻力,处死小鼠研究肺部RSV病毒滴度、肺泡灌洗液(BALF)中细胞计数、肺部病理组织炎症及评分。结果白藜芦醇不同方式给药,干预组肺部RSV病毒滴度均显著低于RSV感染组(P<0.01),BALF中细胞总数白藜芦醇干预组明显低于RSV感染组(P<0.05),而白藜芦醇干预组与对照组相比差异无显著性;肺组织炎症病理评分:白藜芦醇干预组明显低于RSV感染组(P<0.01),白藜芦醇干预组清醒状态小鼠气道高反应(吸入乙酰甲胆碱浓度12.5~50.0mg/ml时)较单纯RSV感染组明显减轻(P<0.05)。结论白藜芦醇不同方式给药均能够减轻RSV诱发的肺部炎症及气道高反应,其机制可能是通过抑制RSV感染后肺部病毒滴度,减少RSV在体内的复制。

References

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