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中华普通外科学文献(电子版) ›› 2018, Vol. 12 ›› Issue (05) : 310 -313. doi: 10.3877/cma.j.issn.1674-0793.2018.05.006

所属专题: 文献

论著

乌司他丁后处理对肝切除老年大鼠学习记忆功能的影响及机制研究
洪玉1, 刘嘉羿1, 王寿平2, 张磊3,()   
  1. 1. 510120 广州,中山大学孙逸仙纪念医院麻醉科
    2. 510150 广州医科大学附属第三医院麻醉科
    3. 510120 广州,中山大学孙逸仙纪念医院肝胆外科
  • 收稿日期:2018-06-25 出版日期:2018-10-01
  • 通信作者: 张磊
  • 基金资助:
    国家自然科学基金面上项目(81271223); 广东省自然科学基金资助项目(2017A030313871)

Mechanism of ulinastatin post-treatment on learning and memory function after partial hepatectomyin aged rats

Yu Hong1, Jiayi Liu1, Shouping Wang2, Lei Zhang3,()   

  1. 1. Department of Anesthesialogy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
    2. Department of Anesthesialogy, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
    3. Departmentof Hepatobiliary Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
  • Received:2018-06-25 Published:2018-10-01
  • Corresponding author: Lei Zhang
  • About author:
    Corresponding author: Zhang Lei, Email:
引用本文:

洪玉, 刘嘉羿, 王寿平, 张磊. 乌司他丁后处理对肝切除老年大鼠学习记忆功能的影响及机制研究[J/OL]. 中华普通外科学文献(电子版), 2018, 12(05): 310-313.

Yu Hong, Jiayi Liu, Shouping Wang, Lei Zhang. Mechanism of ulinastatin post-treatment on learning and memory function after partial hepatectomyin aged rats[J/OL]. Chinese Archives of General Surgery(Electronic Edition), 2018, 12(05): 310-313.

目的

观察乌司他丁(UTI)后处理对肝部分切除术(PH)老年大鼠学习记忆能力的影响并探讨其作用机制。

方法

选择健康雄性无特定病原体SPF级C57BL/6J大鼠36只,18月龄,体质量27~36 g。按照随机数字表法将大鼠分为3组:对照组(C组)、肝部分切除术组(PH组)和UTI后处理组(UTI组),每组12只。UTI组大鼠术毕苏醒即刻经腹腔注射UTI 50 000 U/kg,连续注射7 d,C组和PH组大鼠连续7 d每日腹腔注射等量0.9%氯化钠溶液。3组大鼠于末次给药结束后24 h均进行Morris水迷宫试验和旷场实验等行为学测试,测试完毕后处死大鼠,立即取海马组织冻存备用,采用ELISA法检测海马组织炎性因子IL-1、IL-6、TNF-α水平,Western blotting法检测海马组织Amlyoid-β蛋白、tau蛋白、磷酸化tau-Ser396蛋白的表达。

结果

与C组和UTI组比较,PH组大鼠第3、4天的逃避潜伏期、游泳距离均延长(F=11.783、72.141、70.807,均P<0.001),探索时间、穿越次数均缩短(F=143.244、32.428,均P<0.001),中央区探索时间、跨格次数、旷场直立次数均缩短(F=76.232、105.990、17.477,均P<0.001);海马组织炎症因子TNF-α、IL-6、IL-1的浓度均增加(F=395.545、1 124.503、474.526,均P<0.001),海马组织tau蛋白、磷酸化tau-Ser396蛋白、Amlyoid-β蛋白表达均增加(F=285.764、307.440、557.347,均P<0.001)。

结论

UTI可改善PH后老年大鼠的学习记忆能力,其机制可能与UTI抑制海马细胞炎症及Amlyoid-β蛋白、tau蛋白、磷酸化tau-Ser396蛋白的表达有关。

Objective

To investigate the effects of ulinastatin post-treatment on the learning and memory after partial hepatectomy in aged rats.

Methods

Thirty-six healthy C57BL/6J male mice (weighed 27-36 g) were randomly divided into three groups: control group (group C), partial hepatectomy group (group PH), and ulinastatin post-treatment group (group UTI), with 12 in each group. After being performed partial hepatectomy, 50 000 U/kg ulinastatin was injected intraperitoneally for 7 consecutive days in UTI group, while the equal volume of normal saline was given in group C and group PH. 24 hours after the last injection, the rats underwent Morris water maze and open-filed test. The animals were sacrificed and their hippocampi were immediately removed for determination of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and interleukin-1 (IL-1) using ELISA and expression of Amloyid-β protein, protein tau, protein tau phospho-396 in the hippicampus of the cells using Western blotting.

Results

Compared with group C and group UTI, the escape latency on the third and fourth day and swimming distance in group PH were significantly prolonged (F=11.783, 72.141, 70.807, all P<0.001), the exploring time and the crossing times were shortened (F=143.244, 32.428, both P<0.001), esidence time in the central district and span numbers, the erect frequency were shortened in the open field (F=76.232, 105.990, 17.477, all P<0.001) , and the expression of TNF-α, IL-6 and IL-1 was up-regulated (F=395.545, 1 124.503, 474.526, all P<0.001), the levels of hippocampal tau protein, tau phospho-396 and Amloyid-β protein were increased in group PH (F=285.764, 307.440, 557.347, all P<0.001).

Conclusion

Ulinastatin can improve the cognitive function after partial hepatectomy in old mice and inhibition of inflammatory responses, the expession of hippocampal tau protein, tau phospho-396 and Amloyid-β proteinin hippocampi is involved in the mechanism.

表1 3组大鼠水迷宫测试结果的比较(±s
表2 3组大鼠旷场实验结果的比较(±s
表3 3组大鼠TNF-α、IL-6、IL-1水平的比较(pg/ml,±s
表4 3组大鼠tau、tau-Ser396、Amlyoid-β蛋白表达的比较(±s
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