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Leadtoxicityremainsapublicproblemintheworld ,especiallyinthedevelopingcountries.Chronicleadexposurecancauseimpairmentofcog nitivefunctionandsignificantdelaysinbehavioraldevelopment.However ,themechanismsunderly ingtheseimpairmentshavenotbeendefined .Long term potentiation (LTP)isthoughttobeavalidmodeloflearningandmemoryatthelevelofthesynapse[1] .Recently ,nitricoxidesynthase (NOS)hasbeenshowntobeanimportantfactorforforma tionandlastingofLTP[2 ,3 ] .Theremightbesomerelationsamonglead ,LTP… 相似文献
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