成都中医药大学附属医院,四川省成都市十二桥路39号,610072
zhangyi2288@163.com
收稿:2021-08-07,
修回:2021-12-26,
纸质出版:2022-03-17
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李斌,李佳欣,郝彦伟等.远志散对阿尔茨海默病模型小鼠学习记忆能力及海马紧密连接蛋白表达的影响[J].中医杂志,2022,63(06):557-563.
LI Bin,LI Jiaxin,HAO Yanwei,et al.Effects of Yuanzhi Powder (远志散) on Learning and Memory and Expression of Tight Junction Proteins in Hippocampus of Alzheimer's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(06):557-563.
李斌,李佳欣,郝彦伟等.远志散对阿尔茨海默病模型小鼠学习记忆能力及海马紧密连接蛋白表达的影响[J].中医杂志,2022,63(06):557-563. DOI: 10.13288/j.11-2166/r.2022.06.012.
LI Bin,LI Jiaxin,HAO Yanwei,et al.Effects of Yuanzhi Powder (远志散) on Learning and Memory and Expression of Tight Junction Proteins in Hippocampus of Alzheimer's Disease Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(06):557-563. DOI: 10.13288/j.11-2166/r.2022.06.012.
目的
2
探讨远志散治疗阿尔茨海默病的可能作用机制。
方法
2
30只快速老化(SAMP8)小鼠随机分为模型组、盐酸多奈哌齐组、远志散组,每组10只,另设10只抗快速老化小鼠(SAMR1小鼠)作为空白组。盐酸多奈哌齐组给予2 mg/(kg·d)盐酸多奈哌齐灌胃,远志散组给予12 g/(kg·d)远志散灌胃,灌胃量均为10 ml/kg;空白组、模型组以无菌水10 ml/kg灌胃。各组均每日1次,连续8周。采用Morris水迷宫实验观察各组小鼠学习记忆能力,HE染色检测海马CA1区神经元病理,免疫组化检测海马CA1区β淀粉样蛋白
1-42
(Aβ
1-42
)表达,硫磺素S(Thioflavine-S)染色观察海马β淀粉样蛋白(Aβ)聚集情况,Western blot法检测海马组织中胞质附着蛋白(ZO-1)、闭锁蛋白5、咬合蛋白表达。
结果
2
与空白组比较,模型组小鼠Morris水迷宫实验中第2、3、4天逃避潜伏期显著延长,进入有效区次数和有效区内停留时间显著减少(
P
<0.05或
P
<0.01);病理结果显示小鼠神经细胞层数减少,固化萎缩的神经元数量明显增加;Aβ
1-42
蛋白在海马CA1区有丰富表达,Thioflavine-S荧光强度明显增强;海马ZO-1、闭锁蛋白5、咬合蛋白表达水平均明显下降(
P
<0.01)。Morris水迷宫实验中盐酸多奈哌齐组与远志散组小鼠逃避潜伏期均逐日缩短(
P
<0.05或
P
<0.01),且第3、4天的逃避潜伏期显著短于同日的模型组,进入有效区次数和有效区停留时间均较模型组增加(
P
<0.05或
P
<0.01);盐酸多奈哌齐组与远志散组小鼠神经元数量均较模型组增加,固化萎缩的神经元数量均减少;Thioflavine-S荧光强度均较模型组明显减弱,Aβ
1-42
蛋白在海马CA1区中均呈低表达;海马中ZO-1、闭锁蛋白5、咬合蛋白表达水平均高于模型组(
P
<0.01)。远志散组与盐酸多奈哌齐组小鼠各指标比较差异均无统计学意义(
P
>0.05)。
结论
2
远志散能提高SAMP8小鼠学习记忆能力,抑制Aβ在海马中异常聚集,其机制可能与提高海马紧密连接蛋白ZO-1、闭锁蛋白5、咬合蛋白表达和改善血脑屏障功能有关。
Objective
2
To explore the possible mechanism of
Yuanzhi Powder
(远志散) in the treatment of Alzheimer's disease (AD).
Methods
2
Thirty rapidly aging mice SAMP8 were randomly divided into a model group, donepezil hydrochloride group and
Yuanzhi Powder
group, with 10 rats in each group. Another 10 anti-rapidly aging mice SAMR1 were set as blank group. Donepezil hydrochloride at a concentration of 2 mg/(kg·d) and
Yuanzhi Powder
at a concentration of 12 g/(kg·d) were given by gavage to the corresponding group respectively, while sterile water was administered by gavage in the blank group and the model group. The dose was 10 ml/kg in all groups, and the interventions were administered once daily for 8 weeks. Morris water maze (MWM) was used to test the learning and memory. HE staining was used to detect neuronal pathology in hippocampal CA1 region. The expression of amyloid-β
1-42
(Aβ
1-42
) in hippocampal CA1 region was detected by immunohistochemistrym, while amyloid-β (Aβ) aggregation was observed through thioflavine-S staining. Western blotting was used to detect the expression of cytoplasmic attachment protein (ZO-1), claudin-5 and occludin in hippocampus.
Results
2
Compared to those in the blank group, the escape latency on day 2, 3, 4 in the model group was prolonged significantly, and the number of entries into the target quadrant and the time spent in target quadrant using MWM were significantly reduced (
P
<0.05 or
P
<0.01). The pathological results showed the layers of nerve cells decreased and the solidified atrophy neurons increased in the model group. Moreover, Aβ
1-42
proteins were abundantly expressed in hippocampal CA1 region, the fluorescence intensity of Thioflavine-S was significantly enhanced, and the expression levels of ZO-1, claudin-5 and occludin in the hippocampus were significantly decreased in the model group (
P
<0.01). The escape latency detected by WMW decreased day by day in the donepezil hydrochloride group and the
Yuanzhi Powder
group
,
and was significantly shorter than that in the model group on the same day, while on day 3 and day 4, the the number of entries into the target quadrant and the time spent in target quadrant increased (
P
<0.05 or
P
<0.01). Compared to those in the model group, the layers of nerve cells significantly increased, while the solidified atrophy neurons decreased in donepezil hydrochloride group and the
Yuanzhi Powder
group. Moreover, the fluorescence intensity of Thioflavine-S was significantly weakened; Aβ
1-42
proteins was lowly expressed in the hippocampal CA1 region; and the expression levels of ZO-1, claudin-5 and occludin in the hippocampus were higher (
P
<0.01). There was no significant differences between
Yuanzhi Powder
group and donepezil hydrochloride group in all outcomes (
P
>0.05).
Conclusion
2
Yuanzhi Powder
can improve the learning and memory and inhibit the abnormal aggregation of Aβ in the hippocampus of SAMP8 mice. The mechanism may be related to its functions of increasing hippocampal tight junction protein ZO-1, oclaudin-5, and occludin expression and improving blood-brain barrier function.
JIA L , DU Y , CHU L , et al . Prevalence, risk factors, and management of dementia and mild cognitive impairment in adults aged 60 years or older in China: a cross-sectional study [J]. Lancet Public Health , 2020 , 5 ( 12 ): 661 - 671 .
PANZA F , LOZUPONE M , SERIPA D , et al . Amyloid-beta immunotherapy for alzheimer disease: Is it now a long shot? [J]. Ann Neurol , 2019 , 85 ( 3 ): 303 - 315 .
MONTAGNE A , NATION DA , SAGARE AP , et al . APOE4 leads to blood-brain barrier dysfunction predicting cognitive decline [J]. Nature , 2020 , 581 ( 7806 ): 71 - 76 .
RICCIARELLI R , FEDELE E . The amyloid cascade hypothesis in Alzheimer's disease:It's time to change our mind [J]. Curr Neuropharmacol , 2017 , 15 ( 6 ): 926 - 935 .
DELI MA . Potential use of tight junction modulators to reversibly open membranous barriers and improve drug delivery [J]. Biochim Biophys Acta , 2009 , 1788 ( 4 ): 892 - 910 .
LI B , XIE PJ , HAO YW , et al . Yuan-zhi-san inhibits tau protein aggregation in an Aβ1‑40‑induced Alzheimer's disease rat model via the ubiquitin‑proteasome system [J]. Mol Med Rep , 2021 , 23 ( 4 ): 279 .
李斌 , 谢沛俊 , 郭静 , 等 . 加味远志散联合茴拉西坦治疗遗忘型轻度认知障碍(痰浊蒙窍证)的临床研究 [J]. 辽宁中医杂志 , 2021 , 48 ( 2 ): 111 - 113 .
李仪奎 . 中药药理实验方法学 [M]. 上海 : 上海科学技术出版社 , 2006 : 1063 .
张电冲 , 于智敏 . 窍闭探析 [J]. 中国中医基础医学杂志 , 2020 , 26 ( 5 ): 564 - 565,568 .
郭徵艺 , 蒋薇 , 赵思琪 , 等 . 基于“脾不及则九窍不通”诠释益气开窍法防治痴呆的科学内涵 [J]. 中医杂志 , 2019 , 60 ( 20 ): 1798 - 1800 .
刘根 , 贺文彬 , 赵子强 , 等 . 基于中医传承辅助平台对老年性痴呆防治方剂核心药物组合的筛选研究 [J]. 中国实验方剂学杂志 , 2016 , 22 ( 7 ): 223 - 228 .
林丹霞 , 陈振 . 开心散联合盐酸多奈哌齐片对阿尔茨海默病的初步临床研究 [J]. 中医临床研究 , 2018 , 10 ( 23 ): 73 - 75 .
王健 , 林水淼 , 周如倩 , 等 . 调心方治疗阿尔茨海默氏病的临床研究 [J]. 北京中医药大学学报 , 2002 , 25 ( 3 ): 51 - 53 .
李斌 , 孙中莉 , 陈冠儒 , 等 . 远志散对东莨菪碱致记忆获得性障碍模型小鼠行为学和脑内AchE活性的影响 [J]. 广州中医药大学学报 , 2017 , 34 ( 5 ): 733 - 736 .
郭静 , 李斌 , 王智超 , 等 . 远志散对D-半乳糖致衰老小鼠学习记忆及氧化应激水平的影响 [J]. 中华中医药学刊 , 2019 , 37 ( 9 ): 2144 - 2147,2314 .
谢沛俊 , 郝彦伟 , 郭静 , 等 . 基于PI3K/AKT/GSK-3β通路探讨远志散调控阿尔兹海默病大鼠tau蛋白磷酸化的研究 [J]. 中华中医药学刊 , 2020 , 38 ( 11 ):167-170, 280 - 286 .
郝彦伟 , 李斌 , 张怡 , 等 . 基于脑肠肽Ghrelin水平探讨远志散对AD大鼠学习记忆能力及进食量的影响 [J]. 中国实验方剂学杂志 , 2020 , 26 ( 21 ): 8 - 14 .
李斌 , 谢沛俊 , 向劲松 , 等 . 远志散对阿尔茨海默病大鼠空间认知能力的影响及其机制研究 [J]. 中药材 , 2020 , 43 ( 9 ): 2238 - 2243 .
SEGURA-COLLAR B , MATA-MARTINEZ P , HERNÁ-NDEZLAÍN A , et al . Blood-brain barrier disruption: a common driver of central nervous system diseases [J]. Neuroscientist , 2021 : 1073858420985838 . doi: 10. 1177/1073858420985838 http://dx.doi.org/10.1177/1073858420985838 .
HEINEMANN SD , POSIMO JM , MASON DM , et al . Synergistic stress exacerbation in hippocampal neurons: evidence favoring the dual-hit hypothesis of neurodegeneration [J]. Hippocampus , 2016 , 26 ( 8 ): 980 - 994 .
REINHOLD A , RITTNER H . Barrier function in the peripheral and central nervous system: a review [J]. Pflugers Arch , 2016 , 469 ( 1 ): 123 - 134 .
CARRANO A , HOOZEMANS JJ , VIES SMVAN DER , et al . Neuroinflammation and blood-brain barrier changes in capillary amyloid angiopathy [J]. Neurodegener Dis , 2012 , 10 ( 1-4 ): 329 - 331 .
BUTTERFIELD DA , POON HF . The senescence-accelerated prone mouse (SAMP8): a model of age-related cognitive decline with relevance to alterations of the gene expression and protein abnormalities in Alzheimer's disease [J]. Exp Gerontol , 2005 , 40 ( 10 ): 774 - 783 .
杨之雪 , 唐成林 , 李小宏 , 等 . 电针调控SAMP8小鼠血脑屏障增强盐酸多奈哌齐对β-淀粉样蛋白的清除 [J]. 针刺研究 , 2020 , 45 ( 4 ): 281 - 286 .
杨辉 , 钟方敏 , 陈燕 , 等 . 补脑Ⅰ号对阿尔茨海默病模型小鼠脑内移植骨髓间充质干细胞后海马VEGF、BDNF表达及超微结构的影响 [J]. 中医杂志 , 2021 , 62 ( 15 ): 1349 - 1355 .
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