β-七叶皂苷钠对大鼠肠缺血再灌注损伤的保护作用
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张信来

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The protection effect of β-aescin for ischemia reperfusion injury of intestine in rats
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    摘要:

    目的:研究β-七叶皂苷钠 ( β-aescin,β-A)对大鼠缺血再灌注 (I/R) 后肠黏膜的保护作用,并探讨其作用机制。
    方法:88只健康雄性 Wistar 大鼠,随机分为2组:I/R对照组和I/Rβ-A预处理组,每组按I/R不同时点(0,1,2 h),观察组织病理损害,Haglund评分,肠含水率,肠毛细血管通透性,肠黏膜上皮细胞调亡率,血清TNF-α,IL-6含量变化及生存率。
    结果:与对照组比较,预处理组的肠黏膜组织病理损害,肠含水率,毛细血管通透性,血清 TNF- α, IL-6水平( P <0.01 )及肠黏膜细胞凋亡率均明显降低 (P<0.05),而且生存率明显提高( P<0.05 )。
    结论:β-A对肠I/ R 后肠黏膜具有保护作用; 其机制可能与抑制炎症细胞因子,降低I/ R 后毛细血管通透性及降低肠黏膜细胞调亡率有关。

    Abstract:

    Abstract:Objective:To investigate the protection effect of β-aescin on rat intestine ischemia /reperfusion (I/R) injury.
    Methods :Eighty-eight male wistar rats were randomly divided into two groups, then they were distinguished by different time point after occurrence of reperfusion at 0 h, 1 h, and 2 h. We observed the changes of the serum tumor necrosis factor-α, interleukine-6, the apoptosis of intestine mucosal epithelial cell, intestinal microvascular permeability, and the survival rate.
    Results:The group with β-aescin pretreatment was observed to have reduction of intestinal histopathological damage, and significant decrease of Haglund scores, intestinal microvascular permeability, intestinal water content and the level of TNF-α and IL-6 (P<0.01), and inhibition of intestinal mucosa cell apoptosis (P<0.05) and mortality rate during 36 hours (P<0.01) compared to controlled group with I/R after reperfusion.
    Conclusions:The β-aescin pretreatment could protect the intestinal mucosa from I/R injury, and it might be related to suppression of proinflammatory factors, reduction of intestinal mucosa cell apoptosis and decreased intestinal microvascular permeability.

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张信来, 刘陶迪, 罗力, 李得溪, 候明星.β-七叶皂苷钠对大鼠肠缺血再灌注损伤的保护作用[J].中国普通外科杂志,2008,17(10):12-997.
DOI:10.7659/j. issn.1005-6947.2008.10.012

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  • 在线发布日期: 2008-10-25