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《GLP-1对非酒精性脂肪肝大鼠肝氧化应激及TNF-α、TGF-β1的影响-论文.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、JSouthMedUniv,2013,33(11):1661—1664doi10.3969~.issn.1673—4254.2013.11.21·1661·基础研究高慧亭,徐丽姝,李东风,关丽嫦,邓卫平南方医科大学,广东广州510515;广东省人民医院(广东省医学科学院)医学研究中心//广东省老年医学研究所,消化科,广东广州510080摘要:目的观察胰高血糖素样肽一1(GLP.1)对非酒精性脂肪肝大鼠肝氧化应激及肿瘤坏死因子a(TNF.a)、转换生长因子B1(TGF-131)的影响。方法雄性SD大鼠3O只,随机分为3组,分别予普通饮食10只(ND组
2、)、高脂饮食10只(HFD组)、高脂饮食加利拉鲁肽腹腔注射1O只(GLP一1组)。高脂饮食12周建立大鼠NAFLD模型,建模成功后GLP一1组予利拉鲁肽腹腔注射治疗4周。16周末处死各组大鼠,生物化学法检测血清ALT、血清和肝组织甘油三酯(TG)、总胆固醇(TC),分光光度计测定肝匀浆超氧化物歧化酶(SOD)、丙二醛(MAD)及FFAs,酶联免疫吸附法测定血清TGF—D1、肝匀浆TNF.c【。结果与ND组比较,HFD组大鼠体质量、肝指数、血清ALT、TG、Tc、TGF.p1及肝匀浆TG、Tc、MAD、FFAs、TNF.a均明显升高(尸>0.05),
3、肝匀浆SOD活力明显降低(P<0.05),肝脏脂肪变胜程度和炎症活动度显著增高(P<0.05);而与HFD组比较,GLP.1组可促进上述指标恢复(尸4、alcoholicfattyliverdiseaseGAOHuiting一,XULishu。,LIDongfenf,GUANGLichang3,DENGWeiping~SouthernMedicalUniversity,Guangzhou510515,China;ResearchCenterofMedicalSciences;DepartmentofGastroenterology,GuangdongAcademicoSMedicalSciences,GuangdongGeneralHospital,InstituteoiGeriatrics,Gu5、angzhou510080,ChinaAbstract:ObjectiveToinvestigatetheeffectsofglucagon—likepeptide一1(GLP一1)onliveroxidativestress,1NF—andTGF—p1inratswithdiet-inducednon—alcoholicfattyliverdisease(NAFLD).Methods1h【rtymaleratswererandomlydividedinto3equalgroupsandfedfor16weekswithnormaldiet(ND)6、,hilgh—fatdiet(HFD),orhigh—fatdietwithintraperitonealectionofliraglutide(GLP一1,administeredinthelater4weeks).Theratswerethensacrificedtoobtainbloodsamplesandlivertissuesforanalyzingthelevelsofbloodaminotransferase(Au’),triglyceride(TG),andtotal—cholesterol(TC)usinganautomaticb7、iochemicalanalyzerandthelevelsofsuperoxidedismutase(SOD),malondial—dehyde(MAD),freefattyacid(FFAs),TNF一intheliverhomogenatesandTGF—B1inserumbyradioimmunoassayorELISA.ResultsComparedwithNDgroup,HFDgroupshowedsignificantlyincreasedbodyweight,liverindex,serumlevelsofAUTGTeandTGF—8、p1,andTG,TC,MAD,FFAs,andTNF—aintheliverhomogenates,withalsosi
4、alcoholicfattyliverdiseaseGAOHuiting一,XULishu。,LIDongfenf,GUANGLichang3,DENGWeiping~SouthernMedicalUniversity,Guangzhou510515,China;ResearchCenterofMedicalSciences;DepartmentofGastroenterology,GuangdongAcademicoSMedicalSciences,GuangdongGeneralHospital,InstituteoiGeriatrics,Gu
5、angzhou510080,ChinaAbstract:ObjectiveToinvestigatetheeffectsofglucagon—likepeptide一1(GLP一1)onliveroxidativestress,1NF—andTGF—p1inratswithdiet-inducednon—alcoholicfattyliverdisease(NAFLD).Methods1h【rtymaleratswererandomlydividedinto3equalgroupsandfedfor16weekswithnormaldiet(ND)
6、,hilgh—fatdiet(HFD),orhigh—fatdietwithintraperitonealectionofliraglutide(GLP一1,administeredinthelater4weeks).Theratswerethensacrificedtoobtainbloodsamplesandlivertissuesforanalyzingthelevelsofbloodaminotransferase(Au’),triglyceride(TG),andtotal—cholesterol(TC)usinganautomaticb
7、iochemicalanalyzerandthelevelsofsuperoxidedismutase(SOD),malondial—dehyde(MAD),freefattyacid(FFAs),TNF一intheliverhomogenatesandTGF—B1inserumbyradioimmunoassayorELISA.ResultsComparedwithNDgroup,HFDgroupshowedsignificantlyincreasedbodyweight,liverindex,serumlevelsofAUTGTeandTGF—
8、p1,andTG,TC,MAD,FFAs,andTNF—aintheliverhomogenates,withalsosi
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