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中国临床药理学与治疗学 ›› 2018, Vol. 23 ›› Issue (1): 41-46.doi: 10.12092/j.issn.1009-2501.2018.01.008

• 基础研究 • 上一篇    下一篇

原花青素对急性痛风性关节炎大鼠TLR4/NF-κB信号通路的影响

罗 菲1,梅 燕2   

  1. 1 杭州市富阳中医骨伤医院,杭州 311400,浙江;2 重庆市中医院,重庆 400021
  • 收稿日期:2017-11-14 修回日期:2017-12-11 出版日期:2018-01-26 发布日期:2018-02-07
  • 通讯作者: 梅燕,女,硕士,主管护师,研究方向:临床护理学。 E-mail:30067011@qq.com
  • 作者简介:罗菲,女,本科,主管药师,研究方向:临床药理学。
  • 基金资助:

    重庆市科委自然科学基金项目(cstc2016jcyjA0268)

Effects of procyanidins on TLR4/NF-κB signaling pathway in rats with acute gouty arthritis

LUO Fei 1, MEI Yan 2   

  1. 1 Hangzhou Fuyang Traditional Chinese Medicine Bone Injury Hospital, Hangzhou 311400, Zhejiang, China; 2 Chongqing Traditional Chinese Medicine Hospital, Chongqing 400021, China
  • Received:2017-11-14 Revised:2017-12-11 Online:2018-01-26 Published:2018-02-07

摘要:

目的: 观察原花青素(proanthocyanidins, PC)对急性痛风性关节炎SD大鼠的作用,并探讨其可能机制。方法: 将SD大鼠随机分为6个组(12只/组),分别是:正常组、模型组、低剂量给药组(30 mg/kg)、中剂量给药组(60 mg/kg)、高剂量给药组(90 mg/kg)以及秋水仙碱阳性对照组(0.3 mg/kg)。给药组和对照组给予对应剂量的药物灌胃给药,正常组和模型组则给予相同体积的生理盐水灌胃,连续5 d。于第6天,通过采用向踝关节腔内注射尿酸钠的方法来制作急性痛风性关节炎(AGA)的模型。在造模前、后的固定时间点,测定各组大鼠的关节肿胀度和机械痛阈值,观察其步态、并进行分级;在造模24 h后,用酶联免疫吸附法(enzyme linked immunosorbent assay, ELISA)测定血清中IL-1β、IL-6、TNF-α的水平,用蛋白质免疫印迹法(Western blot)测定滑膜组织中Toll样受体-4(TLR4)和NF-κB的蛋白表达。结果: 原花青素的3个剂量组均能缓解急性痛风性关节炎所导致的大鼠踝关节肿胀、改善模型大鼠的步态变化和造模造成的痛觉改变。同时,原花青素可抑制急性痛风性关节炎SD大鼠TLR4、NF-κB蛋白的表达,下调血清中IL-1β、IL-6、TNF-α的水平。结论: 原花青素对SD大鼠急性痛风性关节炎具有一定的改善作用,其机制可能与抑制TLR4/NF-κB信号通路,从而抑制IL-1β等炎症因子有关。

关键词: 原花青素, 急性痛风性关节炎, 炎症因子

Abstract:

AIM: To observe the effect of procyanidins on acute gouty arthritis SD rats and to explore its possible mechanism. METHODS:SD rats were randomly  divided into six groups: the normal group, the model group, low dose group (30 mg/kg), middle dose group (60 mg/kg), high dose group (90 mg/kg) and colchicine positive control group (0.3 mg/kg). Administration group and control group were given the corresponding dose of drugs by intragastric administration, the normal and model groups were given the same volume of saline. Model of acute gouty arthritis was established by injecting sodium urate into ankle joint cavity. At the fixed time point, joint swelling and mechanical pain threshold were determined, the gait was observed. The levels of IL-1beta, IL-6 and TNF-alfa in serum were measured by ELISA; the protein expression of TLR4 and NF-kB in synovial tissue was measured by Western blot.  RESULTS: Procyanidins can relieve swelling of the ankle, improve gait changes and pain changes in rats. At the same time, procyanidins can inhibit the expression of TLR4 and NF-kB protein in SD rats with acute gouty arthritis, down-regulate the levels of IL-1beta, IL-6 and TNF-alfa in serum. CONCLUSION: Proanthocyanidins exhibit a certain effect on SD rats with acute gouty arthritis. The mechanism may be related to the inhibition of TLR4/NF-kB signaling pathway, thereby inhibiting IL-1beta and other inflammatory factors.

Key words: proanthocyanidins, acute gouty arthritis, inflammatory factor

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