Hematological Changes and Antidiabetic Activities of Colocasia esculenta (L.) Schatt Stem Tuber Aqueous Extract in Alloxan Induced Diabetic Rats

ABSTRACT

Managementofbloodglucoselevelisthehallmarkinthetreatmentofdiabetes.MuchworkhasnotbeendoneonthemanagementofdiabetesusingthestemtuberextractofColocasiaesculenta.TheobjectiveofthisstudywastoevaluatetheantihyperglycemicandhematologicalparameteronColocasiaesculentaaqueousstemextractinalloxaninduceddiabeticrats.Sixty(60)maleratswereusedinthestudy.Sevendaysofacclimatization,theratsweredividedrandomlyintosixgroupsoffiveineachgroup.Group1Servedasnormalcontrol,Group2Diabeticcontrolgroup(negativecontrol),Group3Diabeticgroupand“Glucinorm-M80”(positivecontrol),Group4Diabeticgroupandextractat200mg/kgbodyweight,Group5Diabeticgroupandextractat400mg/kg,Group6Diabeticgroupandextractat600mg/kg.Diabeteswasinducedinalbinoratsby intraperitonealinjectionofalloxanatasingledoseof120mg/kgbodyweightingroups2to6afterstarvingthemfor24hrs.Theanimalsweregivenfeedandwateradlibitum.ThealbinoratswereadministeredfortwentyeightdayswiththeaqueousColocasiaesculentastemtuber,afterwhichtheywerefastedovernight,anaesthetizedwithchloroformandsacrificed.Theresultshowedthattherewasasignificantincrease(p<0.05)inmeanbodyweightofthepositivecontrolandthetreatmentgroups(200mg/kgto600mg/kg)whencomparedwiththenegativecontrolwhichhasasignificantdecrease(p<0.05)inmeanbodyweight.Theresultalsoshowedasignificantincrease(P<0.05)intheconcentrationsofRBC,PCV,HB,whilePLTandMCHshowedsignificantdecrease(P<0.05)inthetreatmentgroupsandnegativecontrolgroupwhencomparedwiththenormalcontrolgroup.Alsotherewasanosignificant(P<0.05)differenceinMCHCofthetreatmentgroupswhencomparedwiththecontrolgroupandnegativecontrolgroup.Alsotherewasasignificantdifferenceinglycosylatehemoglobinofthetreatmentgroupswhencomparedwiththecontrolgroupandnegativegroup.ThisstudyhasdemonstratedthataqueousstemtuberextractofColocasiaesculentahasasignificantincreaseonbodyweightwhichmayhavearoleofimprovingthestatesofpossibleweightlossfollowingcomplicateddiabetes.Also,aqueousstemtuberextractofColocasiaesculentahasanameliorativeeffectonsugarlevelandsomehematologicalparametersofalloxaninduceddiabeticratsshowingeffectivediabeticcontrolandmanagementofdiabetes