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1、英文论文投稿信Cover letter模板qiusuoBY-2006-1-178:59:00DearEditor,Wewouldliketosubmittheenclosedmanuscriptentitled"GDNFAcutelyModulatesNeuronalExcitabilityandA-typePotassiumChannelsinMidbrainDopaminergicNeurons",whichwewishtobeconsideredforpublicationinNatureNe
2、uroscience.GDNFhaslongbeenthoughttobeapotentneurotrophicfactorforthesurvivalofmidbraindopaminergicneurons,whicharedegeneratedinParkinson’sdisease.Inthispaper,wereportanunexpected,acuteeffectofGDNFonA-typepotassiumchannels,leadingtoapotentiationofneuron
3、alexcitability,inthedopaminergicneuronsincultureaswellasinadultbrainslices.Further,weshowthatGDNFregulatestheK+channelsthroughamechanismthatinvolvesactivationofMAPkinase.Thus,thisstudyhasrevealed,forthefirsttime,anacutemodulationofionchannelsbyGDNF.Our
4、findingschallengetheclassicviewofGDNFasalong-termsurvivalfactorformidbraindopaminergicneurons,andsuggestthatthenormalfunctionofGDNFistoregulateneuronalexcitability,andconsequentlydopaminerelease.TheseresultsmayalsohaveimplicationsinthetreatmentofParkin
5、son’sdisease.Duetoadirectcompetitionandconflictofinterest,werequestthatDrs.XXXofHarvardUniv.,andYYofYaleUniv.notbeconsideredasreviewers.Withthanksforyourconsideration,IamSincerelyyours,case2DearEditor,Wewouldliketosubmittheenclosedmanuscriptentitled"Ca
6、2+-bindingproteinfrequeninmediatesGDNF-inducedpotentiationofCa2+channelsandtransmitterrelease",whichwewishtobeconsideredforpublicationinNeuron.WebelievethattwoaspectsofthismanuscriptwillmakeitinterestingtogeneralreadersofNeuron.First,wereportthatGDNFha
7、salong-termregulatoryeffectonneurotransmitterreleaseattheneuromuscularsynapses.Thisprovidesthefirstphysiologicalevidenceforaroleofthisnewfamilyofneurotrophicfactorsinfunctionalsynaptictransmission.Second,weshowthattheGDNFeffectismediatedbyenhancingthee
8、xpressionoftheCa2+-bindingproteinfrequenin.Further,GDNFandfrequeninfacilitatesynaptictransmissionbyenhancingCa2+channelactivity,leadingtoanenhancementofCa2+influx.Thus,thisstudyhasidentified,forthefirsttime,amoleculartargetthatmediatest
