[1]任大斌 郑 平 冯九庚 段 剑 邹树峰 洪 涛 赵 麟 陈 伟.抑制ERK1/2对大鼠脑缺血再灌注损伤的保护作用[J].中国临床神经外科杂志,2019,(05):295-298.[doi:10.13798/j.issn.1009-153X.2019.05.012]
 REN Da-bin,ZHENG Ping,FENG Jiu-geng,et al.Protective effetc of inhbition of ERK1/2 on rats after cerebral ischemia-repufusion injury[J].,2019,(05):295-298.[doi:10.13798/j.issn.1009-153X.2019.05.012]
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抑制ERK1/2对大鼠脑缺血再灌注损伤的保护作用()
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《中国临床神经外科杂志》[ISSN:1009-153X/CN:42-1603/TN]

卷:
期数:
2019年05期
页码:
295-298
栏目:
论著
出版日期:
2019-05-27

文章信息/Info

Title:
Protective effetc of inhbition of ERK1/2 on rats after cerebral ischemia-repufusion injury
文章编号:
1009-153X(2019)05-0295-04
作者:
任大斌 郑 平 冯九庚 段 剑 邹树峰 洪 涛 赵 麟 陈 伟
201299 上海,上海健康医学院附属上海浦东新区人民医院神经外科(任大斌、郑 平、陈 伟);330008 南昌, 南昌大学第一附属医院神经外科(冯九庚、段剑、邹树峰、洪 涛、陈 伟);210029 南京,南京医科大学第一附属医院神经外科(赵 麟)
Author(s):
REN Da-bin1 ZHENG Ping1 FENG Jiu-geng2 DUAN Jian2 ZOU Shu-feng2 Hong Tao2 ZHAO Lin3 CHEN Wei12
1. Department of Neurosurgery, Affiliated People's Hospital of Shanghai Pudong New Area, Shanghai College of Medicine and Health Sciences, Shanghai 201299, China; 2. Department of Neurosurgery, The First Affliated Hospital of Nanchang University, Nanchang 330008, China; 3. Department of Neurosurgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210009, China
关键词:
脑缺血再灌注损伤缝隙连接蛋白43缝隙连接蛋白40异型连接核因子-κB细胞外调节蛋白激酶大鼠
Keywords:
Ischemia reperfusion injury Cx43 Cx40 Heterotypic gap junction Nuclear factor-κB Rat
分类号:
R 743
DOI:
10.13798/j.issn.1009-153X.2019.05.012
文献标志码:
A
摘要:
目的 探讨抑制细胞外调节蛋白激酶(ERK)1/2对脑缺血再灌注(I/R)损伤大鼠的作用及对缝隙连接蛋白(Cx)40/Cx43异型缝隙连接表达以及核因子-κB(NF-κB)相关炎症因子p-IκBa、肿瘤坏死因子(TNF)-α及干扰素(IFN)表达的影响。方法 选取成年雄性100只大鼠随机分为5组,每组20只:假手术组(仅暴露双侧颈总动脉而不夹闭);治疗组4 h组和治疗组8 h组(I/R后立即腹腔注射ERK1/2特异性抑制剂SCH772984,25 mg/kg);④溶媒组(I/R后立即腹腔注射溶媒二甲基亚枫);⑤模型组(阻断双侧颈总动脉血流30 min后,恢复血流,产生I/R损伤)。采用神经功能损伤程度量表(NSS)评分评估大鼠神经功能。采用干湿重法测定脑组织含水率。采用免疫印迹法测定损伤侧海马区皮质p-IκBa、TNF-α及IFN的表达,采用免疫共沉淀法检测Cx40/Cx43异型连接表达。结果 模型组NSS评分脑含水率、p-IκBa、TNF-α、IFN及Cx40/Cx43异型连接的表达水平较假手术组均明显增高(P<0.05),SCH772984干预后,均明显下降(P<0.05)。结论 抑制ERK1/2途径,可明显抑制Cx40/Cx43异型连接和NF-κB,减少炎症因子,缓解脑水肿,从而改善大鼠神经功能。
Abstract:
ObjectiveToinvestigatetheeffectofinhibitionofextracellularregulatedproteinkinase(ERK)1/2onratsafterthecerebralischemia-repufusion(I/R)injury.MethodsOnehundredadultSDratswererandomlydividedinto5groups20animalseach,i.e.shamoperation;treatmentgroups1and2inwhichtheanimalsreceivedtheintraperitonealinjectionofERK1/2inhibitorSCH772984(25mg/kg)immediatelyafterI/Randthenweresacrificed4and8hoursafterI/R,respectively;vehiclegroupinwhichtheanimalsreceivedintraperitonealinjectionofisovolumeticDMSOandthenweresacrificed8hoursafterI/R;injurygroupinwhichtheanimalswithoutreceivinganytreatmentweresacrificed8hoursafterI/R.ThecerebralI/Rinjurymodelwasestablishedbyclippingbilateralcommoncarotidarteries.ThecerebralwatercontentwasmeasuredbyHatashitawet-weightmethodin10ratsofeachgroup.Thelevelsofp-IκBa,tumornecrosisfactor-α(TNF-α),interferon(IFN)andCx40/Cx43heterotypicgapjunctionexpressionsweredeterminedinthehippocampaltissuesof10ratsofeachgroupbywesternblotandco-immunoprecipitation,respectively.ResultsWatercontentandlevelsofp-IκBa,TNF-α,IFNandCx40/Cx43heterotypicgapjunctionexpressionsweresignificantlylowerinthetreatmentgroups1and2thanthoseinthevehicleandinjurygroups(P<0.05)andweresignificantlyhigherthanthoseintheshamgroup(P<0.05).Therewerenosignificantlydifferencesinthecerebralwatercontentandthelevelsofp-IκBa,TNF-a,IFNandCx40/Cx43heterotypicgapjunctionexpressionsbetweenboththetreatmentgroups(P>0.05).ConclusionInhibitionofERK1/2mayrelievethecerebraloedemaandimprovetheneurologicalfunctionwhichmaybebydown-regulationofCx40/Cx43heterotypicgapjunctionandp-IκBaproteinexpressions,thenreducingthelevelsofinflammatoryfactorssuchasTNF-αandINFexpressionsintheratsafterI/Rinjury.

参考文献/References:


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备注/Memo

备注/Memo:
基金项目:上海健康医学院种子基金项目(SFP-18-21-13-007,SFP-18-21-13-005);上海市浦东新区科委民生项目(PKJ2016-Y31);国家自然科学基金(81701231);上海市自然科学基金(16ZR1431500)
通讯作者:陈 伟,E-mail:22248223@qq.com
更新日期/Last Update: 2019-05-27