预览加载中，请您耐心等待几秒...

HeadTraumaLinkedtoAlzheimer’sDiseasePlaques.doc

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

HeadTraumaLinkedtoAlzheimer’sDiseasePlaques Astudyindicatesahistoryofconcussion,includingatleastonemomentarylossofconsciousness,mayincreasetheriskofAlzheimer’sdiseasebycontributingtothebuild-upofAlzheimer’s-associatedplaquesinthebrain. ResearchersatMayoClinicinRochester,Minnesotaconductedbrainscansof448peoplewithoutanythinkingormemoryproblemsand141individualswithmildcognitivedifficulties.Alltheparticipantswere70orolder. Eachgroupwasaskedwhethertheyhadexperiencedabraininjurythatinvolvedatemporarylossofconsciousnessormemory. Seventeenpercentofthecognitivelynormalparticipantssaidtheyhadhadabraininjuryand18percentofthosewithmemoryandthinkingdifficultiesreportedsufferingaconcussionorheadtrauma. Thestudyfoundnodifferencesinbrainimagingmeasurementsamongthecognitivelyhealthyindividuals,whetherornottheyhadexperiencedabraininjury.However,inthosewithmildcognitiveimpairmentandahistoryofconcussion,thescansrevealedan18percenthigherlevelofamyloidplaques.ThoseproteindepositsinthebrainarethehallmarkofAlzheimer’sdisease. LeadresearcherMichelleMielkecallsthefindingsinteresting,suggestingtheremaybearelationshipbetweenconcussionandAlzheimer’sdisease. AnarticleonthefindingsispublishedinthejournalNeurology.