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中华神经创伤外科电子杂志 ›› 2017, Vol. 03 ›› Issue (02) : 93 -97. doi: 10.3877/cma.j.issn.2095-9141.2017.02.008

所属专题: 文献

基础研究

槲皮素在实验性大鼠脑出血模型中的对抗炎症作用及细胞凋亡作用的研究
徐兰娟1, 易波1, 李保林1,()   
  1. 1. 450007 郑州,郑州大学附属郑州中心医院重症医学科
  • 收稿日期:2017-02-13 出版日期:2017-04-15
  • 通信作者: 李保林

Study on the effect of quercetin on inflammation and apoptosis in experimental intracerebral hemorrhage model in rats

Lanjuan Xu1, Bo Yi1, Baolin Li1,()   

  1. 1. ICU, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450007, China
  • Received:2017-02-13 Published:2017-04-15
  • Corresponding author: Baolin Li
  • About author:
    Corresponding author: Li Baolin, Email:
引用本文:

徐兰娟, 易波, 李保林. 槲皮素在实验性大鼠脑出血模型中的对抗炎症作用及细胞凋亡作用的研究[J/OL]. 中华神经创伤外科电子杂志, 2017, 03(02): 93-97.

Lanjuan Xu, Bo Yi, Baolin Li. Study on the effect of quercetin on inflammation and apoptosis in experimental intracerebral hemorrhage model in rats[J/OL]. Chinese Journal of Neurotraumatic Surgery(Electronic Edition), 2017, 03(02): 93-97.

目的

探讨槲皮素对大鼠脑出血模型神经功能恢复的作用及可能机制。

方法

采用胶原酶法制作大鼠脑出血模型,随机分为假手术组、脑出血组、脑出血+槲皮素5 mg/kg组和脑出血+槲皮素50 mg/kg组。药物实验组通过腹腔注射槲皮素,通过实时定量聚合酶链式反应技术来检测脑组织提取物中的炎症指标及使用TUNEL法观察细胞凋亡情况。

结果

经过3 d最佳剂量(50 mg/kg)槲皮素的治疗,与脑出血组相比可以显著降低炎症因子的表达量及减少TUNEL阳性细胞的数量。

结论

槲皮素的最佳剂量的早期治疗通过抑制炎症反应和减少细胞凋亡,可以改善脑出血模型后的脑损伤,从而促进神经功能的恢复。

Objective

To investigate the effect of quercetin on neuronal functional recovery in intracerebral hemorrhage (ICH) rats and its underlying mechanisms.

Methods

In the present study, we established an ICH model by injecting type VII bacterial collagenase (0.5 U) into the central striatum of male Sprague-Dawley rats. The animals were randomized to four groups: sham-operation group; ICH+vehicle group; ICH+5 mg/kg quercetin group; and ICH+50 mg/kg quercetin group. The expression levels of inflammatory cytokines in the brain tissue were assayed by real-time PCR, and cell apoptosis was assayed by TUNEL staining 3 d after model establishment.

Results

It was found that the expression levels of inflammation markers and the number of apoptotic cells were reduced significantly in ICH rats receiving quercetin in 50 mg/kg quercetin group.

Conclusion

These results confirmed the therapeutic efficacy of quercetin in repairing brain injury, probably by inhibiting inflammatory response and apoptosis, thus promoting nerve functional restoration.

表1 RT-PCR扩增产物大小
表2 4组大鼠脑出血神经功能缺损评分(±s,分)
表3 4组大鼠脑出血脑组织水含量和TUNEL阳性细胞数(±s
图1 各组大鼠脑出血标本TUNEL染色结果(×200)
表4 4组大鼠脑出血病灶体积(±s
图2 各组大鼠脑出血标本出血灶体积
表5 4组大鼠炎症因子mRNA的表达量(±s
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