食品科学 ›› 2009, Vol. 30 ›› Issue (19): 273-275.doi: 10.7506/spkx1002-6630-200919063

• 营养卫生 • 上一篇    下一篇

白术多糖对局灶性脑缺血再灌注后诱导型一氧化氮合酶的影响

王光伟1,丰昀2,刘永乐3,邱细敏1   

  1. 1.湖南师范大学医学院 2.长沙市中心医院 3.长沙理工大学生物与食品工程学院
  • 收稿日期:2009-02-16 修回日期:2009-06-26 出版日期:2009-10-01 发布日期:2010-12-29
  • 通讯作者: 王光伟 E-mail:wanggwwmq323@163.com
  • 基金资助:

    湖南省自然科学基金项目(08JJ3024);长沙市科技局科技计划资助项目(K069062-12)

Effect of Polysaccharide from Atractylodes macrocephala Koidz on Inducible Nitric Oxide Synthase after Focal Cerebral Ischemia Reperfusion in Rats

WANG Guang-wei1,FENG Yun2,LIU Yong-le3,QIU Xi-min1   

  1. 1. College of Medicine, Hunan Normal University, Changsha 410006, China;2. Changsha Central Hospital, Changsha 410004,
    China;3. College of Biological and Food Engineering, Changsha University of Science and Technology, Changsha 410015, China
  • Received:2009-02-16 Revised:2009-06-26 Online:2009-10-01 Published:2010-12-29
  • Contact: WANG Guang-wei1 E-mail:wanggwwmq323@163.com

摘要:

目的:探讨局灶性脑缺血再灌注后应用白术多糖治疗对诱导型一氧化氮合酶(iNOS)的影响。方法:采用局灶性脑缺血再灌注模型,Sprague Dawley 大鼠随机分为对照组、再灌注组、蒸馏水组及白术多糖组,每组再根据不同的再灌注时间分为3 个亚组。取缺血区组织,分别检测其水分含量及iNOS 活性。结果:再灌注组、蒸馏水组及白术多糖组各时间点水分含量均较对照组明显增加(P<0.01),但白术多糖组各时间点水分含量显著低于再灌注组及蒸馏水组相应时间点(P < 0.01)。再灌注组、蒸馏水组及白术多糖组各时间点iNOS 活性均较对照组明显升高(P < 0.01),但白术多糖组各时间点iNOS 活性显著低于再灌注组及蒸馏水组相应时间点(P < 0.01)。结论:白术多糖能下调缺血区iNOS 的表达,减轻再灌注后脑水肿的程度。

关键词: 白术多糖, 脑缺血, 再灌注, 一氧化氮合酶

Abstract:

Objective: To study the effect of polysaccharide from Atractylodes macrocephala Koidz on inducible nitric oxide synthase (iNOS) after focal cerebral ischemia reperfusion in rats. Methods: Eighty-four male Sprague Dawley rats were randomly divided into four groups: blank control, reperfusion model group, distilled water group and polysaccharide from Atractylodes macrocephala Koidz group. Meanwhile, three subgroups of rats were created in each group based on time intervals of reperfusion (24, 72 and 120 h) after 1 h of ischemia. Water content and iNOS activity in the ischemic brain tissues were determined. Results: Compared with the blank control group, water content revealed a significant increase in ischemic brain tissues from reperfusion model group, distilled water group and polysaccharide from Atractylodes macrocephala Koidz group at each time point (P < 0.01). Similarly, iNOS activity also exhibited significantly higher in reperfusion model group, distilled water group and polysaccharide from Atractylodes macrocephala Koidz group than that of blank control group (P < 0.01), however, the iNOS activity in polysaccharide from Atractylodes macrocephala Koidz group was significantly lower than that in reperfusion model group and distilled water group (P < 0.01). Conclusion: Polysaccharide from Atractylodes macrocephala Koidz can dramatically inhibit iNOS expression and alleviate brain edema in ischemic areas after focal cerebral ischemia reperfusion.

Key words: polysaccharide from Atractylodes macrocephala Koidz, brain ischemia, reperfusion, nitric oxide synthase

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