畜牧兽医学报 ›› 2018, Vol. 49 ›› Issue (8): 1752-1760.doi: 10.11843/j.issn.0366-6964.2018.08.021

• 基础兽医 • 上一篇    下一篇

沙冬青种子总黄酮对免疫抑制小鼠免疫功能及胸腺和脾超微结构的影响

黄伟宽1, 刘瑞菊2, 贾宁1*, 方梅1, 陶波1,3, 张嘉男1, 梁鹏飞1, 邓康1   

  1. 1. 甘肃农业大学动物医学院, 兰州 730070;
    2. 山东省寿光市营里镇畜牧兽医管理站, 寿光 262700;
    3. 临夏现代职业学院, 临夏 731100
  • 收稿日期:2018-01-08 出版日期:2018-08-23 发布日期:2018-08-23
  • 通讯作者: 贾宁(1963-),男,教授,博士,主要从事兽医病理学与分子病理学研究,E-mail:1963jianing@163.com
  • 作者简介:黄伟宽(1994-),男,黎族,海南保亭人,硕士生,主要从事兽医病理学研究,E-mail:569590370@qq.com
  • 基金资助:

    国家自然科学基金(31560686)

The Effect of Total Flavonoids from Ammopiptanthus mongolicus on the Immune Function and Ultrastructure of Thymus and Spleen in Immunosuppressed Mice

HUANG Wei-kuan1, LIU Rui-ju2, JIA Ning1*, FANG Mei1, TAO Bo1,3, ZHANG Jia-nan1, LIANG Peng-fei1, DENG Kang1   

  1. 1. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
    2. Animal Husbandry and Veterinary Station of Shouguang, Shouguang 262700, China;
    3. Linxia Modern Career Academy, Linxia 731100, China
  • Received:2018-01-08 Online:2018-08-23 Published:2018-08-23

摘要:

旨在深入探讨沙冬青种子总黄酮对免疫抑制小鼠的免疫功能及胸腺和脾超微结构的影响。将100只昆明种小鼠随机分为5组:空白对照组、免疫抑制组、试验Ⅰ组、试验Ⅱ组和试验Ⅲ组,每组20只(雌雄各半),采用灌胃法给药,前7 d,免疫抑制组、试验Ⅰ组、试验Ⅱ组与试验Ⅲ组小鼠均灌胃0.6 mL环磷酰胺溶液;后21 d,试验Ⅰ组、试验Ⅱ组、试验Ⅲ组分别灌胃0.6 mL黄酮剂量为50、150、250 mg·(kg·d)-1的总黄酮溶液,未明确写出的组别和时间点在上述给药时段相应灌胃0.6 mL生理盐水。试验28 d后,分别测定碳粒廓清指数和脏器指数(胸腺、脾)及小鼠血清IL-2、IL-4含量。同时,采用扫描电镜观察脾和胸腺结构。结果表明,灌胃环磷酰胺可复制小鼠免疫抑制模型。不同剂量的沙冬青种子总黄酮能不同程度提高免疫抑制小鼠胸腺和脾指数、碳粒廓清指数、吞噬指数以及血清IL-2和IL-4含量,尤其试验Ⅱ组,总黄酮灌胃剂量为150 mg·(kg·d)-1,其效果最为突出,与免疫抑制组比较均差异极显著(P<0.01)。电镜观察显示,沙冬青种子总黄酮不同剂量试验组小鼠胸腺、脾中成熟淋巴细胞数量与免疫抑制组小鼠比较均不同程度增多,尤其试验Ⅱ组中成熟淋巴细胞数量增多最明显(P<0.01),且淋巴细胞排列紧密,与周围间质间隙明显减少。上述结果提示,沙冬青种子总黄酮可通过促进免疫器官淋巴细胞的增殖和成熟,改善和修复受损免疫器官组织结构,从而达到改善和增强免疫抑制小鼠免疫功能的作用,且在一定范围内具有剂量依赖效应。

Abstract:

To investigate the effect of total flavonoids from the seeds of Ammopiptanthus mongolicus on the immune function and the ultrastructure of thymus and spleen in immunosuppressed mice,100 Kunming mice were randomly divided into five groups(n=20,half male and half female):normal control group, immunosuppression group (cyclophosphamide induced), test group (cyclophosphamide induced, total flavonoids treated) Ⅰ, test group Ⅱ, and test group Ⅲ, and using intragastric administration of medicine to mice. After 28 days, carbon clearance index, thymus index, spleen index, and the content of IL-2, IL-4 in serum were detected. At the same time, the ultrastructure of thymus and spleen were observed through scanning electron microscope. The results showed that the immunosuppressed mice were copied successfully with cyclophosphamide, and the total flavonoids from the seeds of Ammopiptanthus mongolicus could increase the carbon clearance index, thymus index, and spleen index, the content of IL-2 and IL-4 in serum in immunosuppressed mice. The difference were significantly compared with the immunosuppression group, especially in test group Ⅱ[150 mg·(kg·d)-1total flavonoids] (P<0.01). Compared with the immunosuppression group, the number of mature lymphocytes in immunosuppressed mice thymus and spleen increased significantly in the total flavonoid-treated groups and the lymphocytes connected closely, especially in test groupⅡ[150 mg·(kg·d)-1total flavonoids] (P<0.01). The results suggest that the total flavonoids from the seeds of Ammopiptanthus mongolicus can reverse and repair obviously the immune function of the immunosuppressed mice and promote obviously the proliferation and activation of lymphocytes,further more, it has does-dependent relationship with the total flavonoids in a certain extent.

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