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时间:2020-05-01
《β-胡萝卜素对高糖诱导的血管内皮细胞损伤的保护作用.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、24南昌大学学报(医学版)2014年第54卷第7期JournalofNanchangUniversity(MedicalSciences)2014,Vo1.54No.7I];一胡萝b素对高糖诱导的血管内皮细胞损伤的保护作用邱模昌,蔡灵卿,王芳,刘建明,程畅河(江西医学高等专科学校药学系,江西上饶334000)摘要:目的研究p一胡萝素(p—c)对高糖诱导的内皮细胞损伤的保护作用,并初步探讨其作用机制。方法在血管内皮细胞长至8o以上融合时,将其分为5组:正常对照组、高糖损伤组及低、中和高剂量Bc组,每组6个
2、复孔。正常对照组加入10葡萄糖注射液5.5mmol·L,高糖损伤组加入1o葡萄糖注射液33mmol·I,低、中和高剂量p—c组分别加入pclO、2O、40/~mol·L+10葡萄糖注射液33mmol·I。各组放置5CO。培养箱中培养48h后,收集细胞或培养液进行实验。使用酶联免疫检测仪、采用MTT比色法检测5组血管内皮细胞存活率,采用流式细胞仪检测血管内皮细胞凋亡率、血管内皮细胞中活性氧(ROS)水平,使用全自动生化仪、采用乳酸一丙酮酸连续监测法检测5组血管内皮细胞培养液中乳酸脱氢酶(LDH)活性,使用
3、全自动生化仪、采用硫代巴比妥酸比色定量法检测5组血管内皮细胞培养液中丙二醛(MDA)的水平;先参照N()检测试剂盒的使用说明书进行实验,后采用酶联免疫检测仪榆测5组血管内皮细胞培养液中NO水平。结果与正常对照组比较,高糖损伤组的血管内皮细胞存活率、血管内皮细胞培养液中NO水平均明显降低,血管内皮细胞培养液中LDH活性、MDA水平,血管内皮细胞凋亡率、血管内皮细胞中R0s水平均明显升高(均P4、细胞培养液中LDH活性、MDA水平及低、中和高剂量口一C组的血管内皮细胞凋亡率、血管内皮细胞中ROS水平均明显降低(P5、dothelialCellDamageInducedbyHighGlucoseQIUMo-chang,CAILing-qing,WANGFang,LIUJian—ming,CHENGChang-he(DepartmentofPharmacy,JiangxiMedicalHigherSpecialistSchool,Shangrao334000,China)ABSTRACT:ObjectiveTostudytheeffectsofp—carotene(p—C)onhighglucose—induceden6、dothelialeelldamageanditsmechanismofaction.MethodsWhencellfusionreachedmorethan80,vascularendothelialcellsweretreatedwith5.5mmol·L10glucoseinjection(controlgroup),33mmol·I一(highglucosegroup),10/,mol·Lt?-C+33mmol·Iglucoseinjection(1owdoset?-Cgroup),20mol·7、Ip—C+33mmol·Iglucoseinjection(mediumdosel3一Cgroup),or40>mol·IC+33mmol·L~glucoseinjection(highdosep—Cgroup).Eachgroupincludedsixwells.Afterculturefor48hoursinanincubatorfilledwith5CO,,cellsorculturemediumwerecollected.CellviabilitywasassayedbyMTTcolorimet8、ryusingmicroplatereader.Cellapoptosisandintracellularreactiveoxygenspecies(ROS)generationweredetectedbyflowcytornetry.Theactivityoflacticdehydrogenaseinmediumwasexaminedbycontinuousmonitoringoftheconversionlacticacidtopyru
4、细胞培养液中LDH活性、MDA水平及低、中和高剂量口一C组的血管内皮细胞凋亡率、血管内皮细胞中ROS水平均明显降低(P5、dothelialCellDamageInducedbyHighGlucoseQIUMo-chang,CAILing-qing,WANGFang,LIUJian—ming,CHENGChang-he(DepartmentofPharmacy,JiangxiMedicalHigherSpecialistSchool,Shangrao334000,China)ABSTRACT:ObjectiveTostudytheeffectsofp—carotene(p—C)onhighglucose—induceden6、dothelialeelldamageanditsmechanismofaction.MethodsWhencellfusionreachedmorethan80,vascularendothelialcellsweretreatedwith5.5mmol·L10glucoseinjection(controlgroup),33mmol·I一(highglucosegroup),10/,mol·Lt?-C+33mmol·Iglucoseinjection(1owdoset?-Cgroup),20mol·7、Ip—C+33mmol·Iglucoseinjection(mediumdosel3一Cgroup),or40>mol·IC+33mmol·L~glucoseinjection(highdosep—Cgroup).Eachgroupincludedsixwells.Afterculturefor48hoursinanincubatorfilledwith5CO,,cellsorculturemediumwerecollected.CellviabilitywasassayedbyMTTcolorimet8、ryusingmicroplatereader.Cellapoptosisandintracellularreactiveoxygenspecies(ROS)generationweredetectedbyflowcytornetry.Theactivityoflacticdehydrogenaseinmediumwasexaminedbycontinuousmonitoringoftheconversionlacticacidtopyru
5、dothelialCellDamageInducedbyHighGlucoseQIUMo-chang,CAILing-qing,WANGFang,LIUJian—ming,CHENGChang-he(DepartmentofPharmacy,JiangxiMedicalHigherSpecialistSchool,Shangrao334000,China)ABSTRACT:ObjectiveTostudytheeffectsofp—carotene(p—C)onhighglucose—induceden
6、dothelialeelldamageanditsmechanismofaction.MethodsWhencellfusionreachedmorethan80,vascularendothelialcellsweretreatedwith5.5mmol·L10glucoseinjection(controlgroup),33mmol·I一(highglucosegroup),10/,mol·Lt?-C+33mmol·Iglucoseinjection(1owdoset?-Cgroup),20mol·
7、Ip—C+33mmol·Iglucoseinjection(mediumdosel3一Cgroup),or40>mol·IC+33mmol·L~glucoseinjection(highdosep—Cgroup).Eachgroupincludedsixwells.Afterculturefor48hoursinanincubatorfilledwith5CO,,cellsorculturemediumwerecollected.CellviabilitywasassayedbyMTTcolorimet
8、ryusingmicroplatereader.Cellapoptosisandintracellularreactiveoxygenspecies(ROS)generationweredetectedbyflowcytornetry.Theactivityoflacticdehydrogenaseinmediumwasexaminedbycontinuousmonitoringoftheconversionlacticacidtopyru
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