鸡血藤总黄酮对猪圆环病毒2型感染小鼠脾脏氧化应激的影响

doi:10.16431/j.cnki.1671-7236.2017.05.037

摘要/Abstract

摘要：

试验旨在探讨鸡血藤总黄酮（TFSD）对猪圆环病毒2型（PCV2）感染小鼠脾脏氧化应激的影响。将70只昆明小鼠随机分为7组，对照组、TFSD组（100 mg/kg体重）、PCV2组、PCV2＋维生素C （VC）组、PCV2＋不同浓度TFSD （25、50和100 mg/kg体重）组，每组10只，连续3 d采用灌胃和腹腔注射PCV2病毒液的方法建立小鼠氧化应激模型，第4~6天每天按上述分别灌胃给予生理盐水、VC或TFSD。第7天剖杀小鼠，取脾脏分析黄嘌呤氧化酶（XOD）、髓过氧化物酶（MPO）和超氧化物歧化酶（SOD）活力，并检测还原型谷胱甘肽（GSH）和氧化型谷胱甘肽（GSSG）水平，计算GSH/GSSH。结果显示，PCV2感染小鼠后，脾脏中XOD与MPO的活力及GSSG水平显著上升（P＜0.05），SOD活力、GSH水平及GSH/GSSG显著下降（P＜0.05）。TFSD处理小鼠脾脏的SOD活力、GSH水平和GSH/GSSG比值均显著高于PCV2组（P＜0.05），而XOD、MPO活力和GSSG水平则显著低于PCV2组（P＜0.05），对PCV2引起的氧化应激相关酶活力与相关分子水平变化的抑制作用优于VC。结果表明，鸡血藤总黄酮对PCV2诱导的小鼠脾脏氧化应激有良好的调节作用。

关键词: 鸡血藤总黄酮; 猪圆环病毒2型(PCV2); 氧化应激; 脾脏

Abstract:

The aim of this study was to investigate the effect of total flavonoids of Spatholobus suberectus Dunn (TFSD) on porcine circovirus type 2 (PCV2) induced oxidative stress in mice spleen.70 Kunming mice were divided into 7 groups:Control group, TFSD group (100 mg/(kg·BW)), PCV2 group, PCV2+vitamin C (VC) group, and PCV2+various concentrations of TFSD groups (25, 50 and 100 mg/(kg·BW)). Mice were continuously treated with PCV2 via both intragastric administration and intraperitoneal injection for 3 d to establish oxidative stress models. From the 4th to 6th day, mice were intragastric administrated with saline, VC or TFSD, respectively, according to the grouping method. At the 7th day, the activities of xanthine oxidase (XOD), myeloperoxidase (MPO) and superoxide dismutase (SOD), the levels of glutathione (GSH) and oxidized glutathione (GSSG), and the ratio of GSH to GSSG in the mice spleen were analyzed. The results showed that PCV2 infection significantly upregulated the XOD and MPO activities and GSSG content(P <0.05), and dramatically downregulated the SOD activity, GSH level and the ratio of GSH to GSSG (P <0.05) in the mice spleen.Compared to PCV2 group, the SOD activity, GSH content and the ratio of GSH to GSSG in mice treated with TFSD were significantly increased (P <0.05), while the activities of XOD and MPO and the level of GSSG were significantly decreased (P <0.05), showing better performance in the inhibition of PCV2 induced changes of oxidative stress associated enzyme activities and moledule levels than VC.In conclusion,TFSD had regulative effect on the oxidative stress induced by PCV2 in mouse spleen.

Key words: total flavonoids ofSpatholobus suberectus Dunn; porcine circovirus virus type 2(PCV2); oxidative stress; spleen

中图分类号:

R285.5

付远妨, 赵尉丹, 杨潇, 林霜, 胡庭俊, 陈海兰. 鸡血藤总黄酮对猪圆环病毒2型感染小鼠脾脏氧化应激的影响[J]. 《中国畜牧兽医》, 2017, 44(5): 1526-1532.

FU Yuan-fang, ZHAO Wei-dan, YANG Xiao, LIN Shuang, HU Ting-jun, CHEN Hai-lan. Effect of Total Flavonoids of Spatholobus suberectus Dunn on Oxidative Stress in Mice Spleen Induced by PCV2[J]. , 2017, 44(5): 1526-1532.

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