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职称英语真题《卫生C》完形填空职称英语真题《卫生C》完形填空精选职称英语考试完形填空作为一种传统题型，在职称英语考试中也占有重要的地位。以下是yjbys网小编整理的关于职称英语真题《卫生C》完形填空精选，供大家备考。MoreaboutAlzheimer'sDiseaseScientistshavedevelopedskinteststhatmaybeusedinthefuturetoidentifypeoplewithAlzheimer'sdiseaselandmayultimatelyallowphysicianstopredict51isatriskofgettingthisneurologicaldisorder.Theonlycurrentmeansof52thediseaseinalivingpatientisalongandexpensiveseriesofteststhateliminateeveryothercauseofdementia."SinceAloisAlzheimerdescribedthe53nearlyacentury.ago,peoplehavebeentryingtofindawayto54diagnoseitinitsearlystages,"saidPatriciaGrady,actingdirectoroftheNationalInstituteofNeurologicalDisordersandStrokeinBethesda,Maryland."Thisdiscovery,if55,couldproveabigstepforwardinoureffortstodealwithandunderstandthedisease."Alzheimer'sisthesinglegreatest56ofmentaldeteriorationinolderpeople,affectingbetween2.5millionand4millionpeopleintheUnitedStates57.Thedevastatingdisordergraduallydestroysmemoryandtheabilitytofunction,andeventuallycausesdeath.Thereiscurrentlynoknown58forthedisease.Researches59thattheskincellsofAlzheimer'spatientshavedefectsthatinterferewiththeirabilitytoregulatetheflowofpotassiuminandoutofthecells.ThefactthatthecelldefectsarepresentintheskinsuggeststhatAlzheimer's60fromphysiologicalchangesthroughoutthebody,andthatdementiamaybethefirstnoticeable61ofthesechangesasthedefectsaffectthecellsinthebrain,scientistssaid.Theflowofpotassiumisespeciallycriticalincellsresponsibleformemoryformation.Thescientistsalsofoundtwootherdefectsthataffectthecells'supplyofcalcium,another62element.Onetestdevelopedbyresearchescalls63growingskincellsinalaboratorycultureandthentestingthemwithanelectricaldetectortodetermineifthemicroscopictunnelsthat64theflowofpotassiumareopen.Openpotassiumchannelscreateauniqueelectricalsignature.AspokesmanfortheAlzheimer'sAssociationsaidthatifthevalidityofthediagnostictestcanbeprovenitwouldbeanimportant65,butcautionedthatotherpromisingtestsforAizheimer'shavebeendisappo
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