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漆黄素改善阿尔茨海默病模型小鼠学习记忆障碍的细胞内信号通路 被引量:6

Intracellular signaling pathway of fisetin attenuates learning and memory impairments in mouse model of Alzheimer's disease
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摘要 目的研究黄酮类化合物漆黄素对Ap诱发小鼠学习功能障碍的影响。方法通过侧脑室植入的引导管灌注Ap(1-42)建立AD小鼠模型。Ap灌注7d前开始每天进行漆黄素干预并持续至实验结束。AB灌注3d后,利用经典的水迷宫观察小鼠学习记忆功能的变化,实验结束后立即分离海马组织,提取核蛋白和总蛋白,分别利用Western blotting和RT-PCR方法检测小鼠海马核内核因子E2相关因子2(Nrf2)蛋白水平及其下游靶基因血红素加氧酶(HO-1)和1-谷氨酰半胱氨酸连接酶(1-GCL)催化亚基(GCLC)和修饰亚基(GCLM)的mRNA表达水平。结果(1)水迷宫实验结果显示,漆黄素干预组[10mg/kg:(17.54±3.56)s;20mg/kg:(13.04±2.36)s]较A8(142)模型组[(25.40±3.33)s;(1.70±0.05)次]能够剂量依赖性明显降低潜伏期,并增加穿过平台所在位置的次数[10mg/kg:(2.50±0.40)次;20ms/kg:(3.50±0.36)次],差异具有统计学意义(P〈0.05或P〈0.01);(2)Western blotting和RT-PCR结果显示,漆黄素干预组较AB(1-42)模型组能够明显增加海马核内Nrf2蛋白表达水平(10mg/kg:0.11±0.01;20mg/kg:0.16±0.02),上调HO-1(10mg/kg:0.56±0.06;20mS/kg:0.79±0.10)、GCLC(10mg/kg:0.61±0.04;20mg/kg:0.86±0.09)和GCLM(10ms/kg:0.35±0.04;20ms/kg:0.51±0.04)mRNA水平,差异均具有统计学意义(P〈0.05或P〈0.01)。结论漆黄素可有效缓解Aβ(1-42)诱发的小鼠认知功能障碍,其促智作用很可能与激活内源Nrf2抗氧化中枢信号通路有关。 Objective To explore the effects of fisetin on the learning and memory abilities impairments induced by Aβ in mice. Methods Alzheimer disease (AD) animal model was made by single intracerebroventricular infusion of Aβ (1-42) through guide cannula. Fisetin was orally administered 7 days before Aβ infusion once a day, and continued throughout the experimental period. Water maze test began on day 3 after Aβ infusion. All mice were sacrificed and hippocampi were dissected immediately after behavioral test. The protein expression of hippocampal nuclear Nrf2 and the mRNA level of HO-1, GCLC and GCLM were examined by western blotting and RT-RCR techniques respectively. Results ( 1 ) Aβ (1-42) significantly increased escape latency in hidden platform test ( ( 25.4 ± 3.33 ) s), and decreased the number of crossings in probe test ( 1.70 ± 0.25 ) compared with control ( ( 9.05 ± 1.37 ) s) for hidden plat form ;4.50 ± 0. 41 for probe test) and Aβ ( 42-1 ) -treated group ( ( 10.80 ± 1.38 ) s ) for hidden platform test ; 4.10 ± 0.39 for probe test ; P 〈 0.01 ). The prolonged treatment with fisetin dose-dependently reversed the changes (10 mg/kg: 17.54 ± 3.56s for hidden platform test ;2.50 ± 0.40 for probe test, P 〈 0.05,20 mg/kg: ( 13.04 ± 2.36) s for hidden platform test; 3.60 ± 0.36 for probe test, P 〈 0.01 ). (2) Aβ (1-42) significantly decreased the nuclear Nrf2 protein level (0.07 ±0.02) ,and mRNA level (0.45 ±0.04) of HO-1, GCLC (0.41 ± 0.04) and GCLM (0.26 ± 0.03 ) in the hippoeampus of mice compared with con- trol (0.18 ± 0.02 for Nrf2 ;0.83± 0.09 for HO-1 ; 1.01 ± 0.10 for GCLC ; 0.65 ± 0.07 for GCLM) and Aβ (42- 1 ) -treated group (0.21 ±0.02 for Nrf2 ; 0. 90 ± 0.08 for HO-1 ; 1.11 ± 0.11 for GCLC ; 0.72± 0.07 for GCLM) ( P 〈 0.05 or P 〈 0.01 ). However, fisetin administration significantly counteracted these changes ( 10 mg/kg :0.11 ± 0. 01 for Nrf2 ; 0. 56 ± 0. 06 fo
出处 《中华行为医学与脑科学杂志》 CAS CSCD 北大核心 2012年第10期865-868,共4页 Chinese Journal of Behavioral Medicine and Brain Science
基金 国家自然科学基金面上项目(30670714) 无锡市科技局政产学研项目(CYE01012)
关键词 漆黄素 阿尔茨海默病 淀粉样蛋白 核因子E2相关因子2 Fisetin Alzheimer's disease β-amyloid Nuclear factor ( erythroid-derived 2) -like 2
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参考文献20

  • 1Nunomura A, CasteUani RJ, Zhu X, et al. Involvement of oxidative stress in Alzheimer's disease. J Neuropathol Exp Neurol, 2006,65 : 631-641. 被引量:1
  • 2Dumont M, Beal MF. Neuroprotective strategies involving ROS in Alzheimer's disease. Free Radic Biol Meal,2011,51:1014-1026. 被引量:1
  • 3郑梅梅,贺燕,马艳,马学强,邢华医,杜怡峰.海风藤提取物对AD模型大鼠学习记忆的影响[J].中华行为医学与脑科学杂志,2011,20(10):878-880. 被引量:8
  • 4Chi TY, Wang LH, Qu C, et al. Protective effects of xanthoceraside on learning and memory impairment induced by Abeta( 25-35 ) in mice. J Asian Nat Prod Res ,2009,11 : 1019-1027. 被引量:1
  • 5Jhoo JH, Kim HC, Nabeshima T, et al. Beta-amyloid ( 1-42 ) -induced learning and memory deficits in mice : involvement of oxidative bur- dens in the hippocampus and cerebral cortex. Behav Brain Res, 2004,155 : 185-196. 被引量:1
  • 6Yin F,Liu J,Ji X,et al. Baiealin prevents the production of hydrogen peroxide and oxidative stress induced by Abeta aggregation in SH- SY5Y cells. Neurosci Lett,2011,492 :76-79. 被引量:1
  • 7Xi YD, Yu HL, Ding J, et al. Flavonoids protect cerebrovascular endo- thelial cells through Nrf2 and PBK from beta-amyloid peptide-in- duced oxidative damage. Curr Neurovasc Res,2012,9:32-41. 被引量:1
  • 8Arai Y, Watanabe S, Kimira M, et al. Dietary intakes of flavonols ,fla- vones and isoflavones by Japanese women and the inverse correlation between quercetin intake and plasma LDL cholesterol concentration. J Nutr,2000,130:2243-2250. 被引量:1
  • 9Hou DX, Fukuda M, Johnson JA, et al. Fisetin induces transcription of NADPH:quinone oxidoreductase gene through an antioxidant respon- sive element-involved activation. Int J Oncol,2001,18 :1175-1179. 被引量:1
  • 10Higa S, Hirano T, Kotani M, et al. Fisetin, a flavonol, inhibits TH2- type cytokine production by activated human hasophils. J Allergy Clin Immunol,2003,111 : 1299-1306. 被引量:1

二级参考文献15

  • 1肖飞,罗焕敏,李晓光,章佩芬,翁文,高勤.广东海风藤提取物HS_2对老年痴呆小鼠的药效学研究[J].中国药理学通报,2004,20(9):1001-1003. 被引量:18
  • 2于海明,王百忍,李改丽,邝芳,段小莉,鞠躬.大鼠侧脑室置管方法的改良[J].神经解剖学杂志,2005,21(2):207-211. 被引量:15
  • 3Selkoe DJ.Soluble oligomers of the amyloid-β-protein impair synaptic plasticity and behavior.Behav Brain Res,2008,192:106-113. 被引量:1
  • 4Shughrue PJ,Acton PJ,Breese RS,et al.Anti-ADDL antibodies differentially block oligomer binding to hippocampal neurons.Neurobiol Aging,2010,31:189-202. 被引量:1
  • 5Cleary JP,Walsh DM,Hofmeister JJ,et al.Natural oligomers of the amyloid-β protein specifically disrupt cognitive function.Nat Neurosci,2005,8:79-84. 被引量:1
  • 6Fernandez A,Llacuna I,Femandez-Checa JC,et al.Mitochondrial cholesterol loading exacerbates amyloid peptide-induced inflammation and neurotoxicity.J Neurosci,2009,29:6394-6405. 被引量:1
  • 7Tanzi RE,Bertram L.Twenty years of the Alzheimer' s disease amyloid hypothesis:a genetic perspective.Ce11,2005,120:545-555. 被引量:1
  • 8Walsh DM,Townsend M,Podlisny MB,et al.Certain inhibitors of synthetic amyloid beta-peptide (Abeta) fibrillogenesis block oligomerization of natural Abeta and thereby rescue long-term potentiation.J Neurosci,2005,25:2455-2462. 被引量:1
  • 9Jin M,Shepardson N,Yang T,et al.Soluble amyloid beta-protein dimers isolated from Alzheimer cortex directly induce Tau hyperphosphorylation and neuritic degeneration.Proc Natl Acad Sci U S A,2011,108:5819-5824. 被引量:1
  • 10He Y,Cui J,Lee JC,et al.Prolonged exposure of cortical neurons to oligomeric amyloid-β impairs NMDA receptor function via NADPH oxidase-mediated ROS prodution:protective effect of green tea (-)-epigallocatechin-3-gallate.ASN Neuro,2011,3:13-24. 被引量:1

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