APP下载

黄芪多糖对大鼠实验性胃溃疡的影响

2015-08-07黄志远

中国医药导报 2015年15期
关键词:胃溃疡

[摘要] 目的 观察黄芪多糖对大鼠实验性胃溃疡的影响。 方法 SPF级Wistar成年雄性大鼠48只,随机分成正常组,模型组,黄芪多糖高、中、低剂量组,阳性对照(雷尼替丁)组,每组各8只。采用乙酸法制备胃溃疡模型。治疗2周后,观察大鼠乙酸性胃溃疡面积(GUA)及血清超氧化物歧化酶(SOD)活性、丙二醛(MDA)水平的变化。 结果 正常组,模型组,黄芪多糖高、中、低剂量组及雷尼替丁组的GUA分别为:0、(9.06±2.65)、(1.91±0.19)、(2.54±0.27)、(3.85±0.19)、(2.37±0.31) mm2;相应的SOD活性分别为:(138.19±17.92)、(88.69±13.78)、(128.22±19.30)、(118.96±14.78)、(102.68±22.52)、(109.36±14.28) U/mL;相应的MDA水平分别为:(8.51±1.10)、(14.17±1.55)、(9.97±1.44)、(11.17±1.29)、(12.79±1.39)、(11.57±1.01) nmol/mL。与正常组比较,模型组血清SOD活性显著降低(P < 0.01),而MDA水平显著升高(P < 0.01);与模型组比较,黄芪多糖高、中剂量组GUA显著缩小(P < 0.01),血清SOD活性显著升高(P < 0.01),MDA水平显著降低(P < 0.01);与雷尼替丁组比较,黄芪多糖高剂量组GUA显著缩小(P < 0.05),血清SOD活性显著升高(P < 0.05),MDA水平显著降低(P < 0.05);与黄芪多糖低剂量组比较,高、中剂量组GUA显著缩小(P < 0.01)。 结论 黄芪多糖对大鼠乙酸性胃溃疡具有良好的治疗作用,以高剂量为佳,其机制可能与抑制自由基对胃黏膜的氧化损伤有关。

[关键词] 黄芪多糖;胃溃疡;超氧化物歧化酶;丙二醛

[中图分类号] R285.5 [文献标识码] A [文章编号] 1673-7210(2015)05(c)-0016-04

[Abstract] Objective To observe the effect of astragalus polysaccharides (AP) on experimental gastric ulcer rats. Methods 48 rats were randomly divided into 6 groups: normal group, model group, AP groups (high-dose, middle-dose and low-dose group) and ranitidine group, with 8 rats in each group. Gastric ulcers were caused by the corrosion of glacial acetic acid. After 2 weeks of treatment, the change of gastric ulcer area (GUA), serum activity of superoxide dismutase (SOD) and level of malondialdehyde (MDA) were observed. Results The GUA of normal group, model group, high-dose AP group, middle-dose AP group, low-dose AP group and ranitidine group was 0, (9.06±2.65), (1.91±0.19), (2.54±0.27), (3.85±0.19), (2.37±0.31) mm2 respectively; activity of SOD was (138.19±17.92), (88.69±13.78), (128.22±19.30), (118.96±14.78), (102.68±22.52), (109.36±14.28) U/mL respectively; level of MDA was (8.51±1.10), (14.17±1.55), (9.97±1.44), (11.17±1.29), (12.79±1.39), (11.57±1.01) nmol/mL respectively.Compared with normal group, the SOD activity of model group was significantly decreased (P < 0.01), while the MDA level of model group increased significantly (P < 0.01). Compared with model group, the GUA of high-dose AP group and middle-dose AP group decreased significantly (P < 0.01), and the SOD activity of them increased significantly (P < 0.01), while the MDA level of them decreased significantly (P < 0.01). Compared with ranitidine group, the GUA of high-dose AP group decreased significantly (P < 0.05), the SOD activity of it increased significantly (P < 0.05), while the MDA level of it decreased significantly (P < 0.05). Compared with low-dose AP group, the GUA of high-dose AP group and middle-dose AP group decreased significantly (P < 0.01). Conclusion The AP treats experimental GU rats effectively, especially in high-dose, probably by inhibiting oxidant injury on gastric mucosa of oxygen free radicals.

[Key words] Astragalus polysaccharides; Gastric ulcer; Superoxide dismutase; Malondialdehyde

黄芪,别名绵芪、绵黄芪,为豆科植物膜荚黄芪Astragalus membranaceus(Fisch.)Bge.或蒙古黄芪Astragalus mongholicus Bge.的干燥根,味甘,性温,归脾、肺经,生于坡灌丛及旱坡砂质壤土地区,分布于黑龙江、吉林、辽宁、河北、山西、内蒙古、陕西、甘肃、宁夏、青海、山东、四川和西藏等省自治区。黄芪具有补气固表、升阳举陷、利水消肿和托疮生肌等功效。黄芪味甘能补,性温能升,为补气升阳的要药。黄芪主要含有黄芪多糖、黄酮类、皂苷类、氨基酸、蛋白质、生物碱、微量元素等多种生物活性物成分,其中黄芪多糖是黄芪药理作用的主要药效成分。黄芪多糖具有增强机体的免疫功能,调节细胞的代谢功能,提高免疫细胞的免疫活性,抗细胞衰老,调节血糖,抗溃疡,诱导肿瘤细胞凋亡等作用[1-2]。此外,抗氧化也是黄芪多糖的重要药理作用[3-4]。本文探讨黄芪多糖对大鼠实验性胃溃疡的治疗作用及其对血清超氧化物歧化酶(superoxide dismutase,SOD)活性及丙二醛(malondialdehyde,MDA)水平的影响。……

登录APP查看全文

猜你喜欢

胃溃疡
探讨慢性胃炎及胃溃疡患者进行中医护理干预的应用效果
甘草次酸抑制胃溃疡大鼠胃黏膜细胞的凋亡
近几年蒙医治疗胃溃疡临床研究进展
辣椒素-预防胃溃疡的发生
奥美拉唑与西咪替丁在应激性胃溃疡治疗中的临床探讨
奥美拉唑治疗胃溃疡疗效观察
中医食疗治疗慢性胃溃疡30例
香砂六君子汤治疗胃溃疡40例
奥美拉唑联合黄连素治疗胃溃疡41例
抑郁状态对大鼠胃溃疡愈合质量的影响