《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (4): 1022-1026.doi: 10.16431/j.cnki.1671-7236.2017.04.012

• 动物营养与饲料科学 • 上一篇    下一篇

蜂花粉醇提物对衰老小鼠学习、记忆及脑组织抗氧化能力的影响

陈艳珍   

  1. 山东理工大学生命科学学院, 淄博 255049
  • 收稿日期:2016-08-16 出版日期:2017-04-20 发布日期:2017-05-03
  • 通讯作者: 陈艳珍 E-mail:chenyz@sdut.edu.cn
  • 作者简介:陈艳珍(1963-),女,黑龙江拜泉人,硕士,教授,研究方向:营养学
  • 基金资助:

    国家自然科学基金(31100987)

Effects of Ethanol Extracts from Bee Pollen on Learning,Memory and Brain Antioxidant Abilities in Aged Mice

CHEN Yan-zhen   

  1. College of Life Science, Shandong University of Technology, Zibo 255049, China
  • Received:2016-08-16 Online:2017-04-20 Published:2017-05-03

摘要:

试验旨在探讨蜂花粉醇提物(ethanol extracts from bee pollen,EEBP)对D-半乳糖诱导的衰老雄性小鼠学习、记忆和脑组织抗氧化能力的影响。以昆明种雄性小鼠为研究对象,按体重随机分为正常对照组、模型对照组和低、中、高剂量(400、800、1 600 mg/kg体重)EEBP组。除正常对照组外,其余各组小鼠每天颈背部皮下注射500 mg/kg体重 D-半乳糖0.2 mL,正常对照组注射等体积的生理盐水。EEBP组小鼠每天灌胃0.3 mL EEBP悬浮液,对照组小鼠灌胃等体积的蒸馏水,试验期56 d。采用Y型迷宫和跳台仪测试小鼠学习记忆能力,同时测定各组小鼠脑组织超氧化物歧化酶(superoxide dismutase,SOD)、谷胱甘肽过氧化物酶(glutathione peroxidase,GSH-Px)、过氧化氢酶(catalase,CAT)的活力及丙二醛(ma1ondialdehvde,MDA)的含量。结果表明,EEBP能显著降低D-半乳糖诱导的衰老小鼠Y型迷宫的学习次数,提高正确次数,延长跳台潜伏期,降低错误次数;提高衰老模型小鼠脑组织SOD、GSH-Px和CAT活性,降低MDA含量。以上结果说明EEBP可以改善D-半乳糖致衰老模型小鼠学习、记忆能力,提高脑组织的抗氧化能力,具有一定延缓脑衰老的作用。

关键词: 蜂花粉醇提物; 小鼠; 抗氧化; 学习; 记忆

Abstract:

The experiment was aimed to investigate the effects of ethanol extracts from bee pollen (EEBP) on learning, memory and brain antioxidant abilities in aged mice induced by D-galactose. Fifty ICR mice were randomly divided into five groups, designated as normal control, model control, low-dose, moderate-dose and high-dose EEBP groups. The mice in normal control group were given saline by gavage, in the other groups were given D-galactose solution by neck back subcutaneous injection at the daily dose of 500 mg/kg·BW for 8 consecutive weeks. At the same time,EEBP treated mice were administered EEBP by gavage at the daily doses of 400,800 and 1 600 mg/kg·BW, respectively. The learning and memory abilities of mice were determined by Y-maze and step-down tests. The content of malondialdehyde (MDA) and activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) in brain tissue of the mice were measured. The results showed that EEBP could enhance the memory, increase the activities of SOD,GSH-Px and decrease the content of CAT in mice.In conclusion, EEBP could ameliorate the degeneration of learning and memory abilities in D-galactose-induced aging mice,improve brain antioxidant abilities and thus delay brain aging.

Key words: ethanol extracts from bee pollen; mice; antioxidation; learning; memory

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