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《Luteolin prevents uric acid-induced pancreatic β-cell dysfunction》.pdf
Availableonlineatwww.jbr-pub.org
OpenAccessatPubMedCentral JBR
TheJournalofBiomedicalResearch,2014,28(4):292-298
ResearchPaper
Luteolinpreventsuricacid—inducedpancreaticB—celldysfunction
YingDing,XuhuiShi,XuanyuShuai,YuemeiXu,YunLiu,XiubinLiang,DongWei。,
DongmingSu,,因
CenterofMetabolicDiseaseResearch,NanjingMedicalUniversity,Nanfing,Jiangsu210029,China;
。CenterofCellularTherapy,theSecondAffiliatedHospitalofNanjingMedicalUniversity,Nanjing,Jiangsu210029,China;
CDepartmentofEndocrinology,theSecondPeoplesHospitalofChengdu,Scihuan610017,China.
Received23October2013,Revised07December2013,Accepted16January2014,Epub28Mrach2014
Abstract
Elevateduricacidcausesdirectinjurytopancreatic 一cells.Inthisstudy,weexaminedmeeffectsofluteolin,an
importantantioxidant,onuricacid-induced口一celldysfunction.Wefirstevaluatedtheeffectofluteolinonnitric
oxide(NO1formationinuricacid.stimulatedMin6cellsusingtheGriessmethod.Next.weperfomr edtransient
trnasfectionandreporterassaystomeasuretrnascriptiona1activityofnuclearfactor(NF1一KB.Westernblotting
assayswerealsoperfomr edtoassesshteeffectofluteolinonhteexpressionofMafA andinducibleNO synhtase
(iNOS inuricacid-treatedceils.Finally.weevaluatedtheeffectofluteolinonuricacid-inducedinhibitionofglu—
cose-stimulatedinsulinsecretionfGSIS)inMin6cellsandfreshlyisolatedmousepnacreaticislets.Wefoundthat
luteolinsignificantlyinhibiteduricacid-inducedNO production,whichwaswellcorrelatedwithreducedexpression
OfiN0SmRNA na dprotein.Furthemr ore.decreasedactivityofNF s:Bwasimplicatedininhibitionbyluteolinof
increasediNOSexpressioninducedbyuricacid.Besides.1uteolinsignificantlyincreasedMafA expressioninM in6
cellsexposedtouricacid。whichwasreversedbyoverexpressio
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