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Induction of Type-1 Diabetes Mellitus in Laboratory Rats by Use of Alloxan: Route of Administration, Pitfalls, and Insulin Treatment

机译:使用四氧嘧啶在实验大鼠中诱导1型糖尿病:给药途径,陷阱和胰岛素治疗

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Uncertaintieshaveexistedregardingthesystematicinductionandmanagementofdrug-induceddiabetesmellitus(DM).Issueshaveincludedtheoptimalrouteofadministrationofthedrug,methodsofreducingdrugtoxicosisandmortality,howtoinducetype-1versustype-2DM,andhowtomanagelabileDMinrats.Inattemptingtoinducetype-1DMinSprague-Dawleyrats,weclassifiedhyperglycemicanimalsashavingtype-1DMonlyiftheirpost-treatmentbloodketoneconcentrationwashigh.Wefoundthatmultipledosesofalloxanledtosignificantlyhighermortalitythandidasingledose.Asinglehighdose(200mg/kgofbodyweightgivenintraperitoneally)wasthebesttreatmentandledto70%incidenceoftype-1DMandonly10%mortality.Incontrast,intravenousadministrationofsimilardoseswastoxic.Assiduousmanagementofalloxan-inducedDMiscrucialtoavoidseverehypoglycemiafrommassiveinsulinreleaseandtoavoiddiabeticketoacidosis.Frequentglucosemonitoringandappropriateadministrationofcarbohydrateandfluidsisnecessaryduringthisstage.Forlong-termmanagement,dailyadministrationoflong-actinginsulin(glargine)appearstobesafeandeffective.Rapid-actinginsulinsreduceglucoseconcentrationrapidly,andmustbeusedwithcaution.Ifspecificprecautionsareobserved,intraperitonealadministrationofhigh-dosealloxantolaboratoryratsleadstoaconditionthatcloselyresembleshumantype-1DM.
机译:Uncertaintieshaveexistedregardingthesystematicinductionandmanagementofdrug-induceddiabetesmellitus(DM).Issueshaveincludedtheoptimalrouteofadministrationofthedrug,methodsofreducingdrugtoxicosisandmortality,howtoinducetype-1versustype-2DM,andhowtomanagelabileDMinrats.Inattemptingtoinducetype-1DMinSprague-Dawleyrats,weclassifiedhyperglycemicanimalsashavingtype-1DMonlyiftheirpost-treatmentbloodketoneconcentrationwashigh.Wefoundthatmultipledosesofalloxanledtosignificantlyhighermortalitythandidasingledose.Asinglehighdose(200毫克/ kgofbodyweightgivenintraperitoneally)wasthebesttreatmentandledto70%incidenceoftype-1DMandonly10%mortality.Incontrast,intravenousadministrationofsimilardoseswastoxic严格的管理,由三氧氟沙星引起的DM避免从大量胰岛素释放和避免糖尿病性酮症酸中毒引起的严重低血糖。在此阶段需要频繁进行糖分监测和适当的碳水化合物和流体管理。安全有效。快速作用的胰岛素可迅速降低葡萄糖浓度,并且必须谨慎使用。如果采取特殊的预防措施,腹腔内给予高剂量的异黄酮修饰的大鼠可能导致类似于人型1DM的情况。

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