Association of a Bovine Prion Gene Haplotype with Atypical BSE 英文参考文献.docVIP

Association of a Bovine Prion Gene Haplotype with Atypical BSE 英文参考文献.doc

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Association of a Bovine Prion Gene Haplotype with Atypical BSE 英文参考文献

AssociationofaBovinePrionGeneHaplotypewith AtypicalBSE MichaelL.Clawson1*,JuergenA.Richt2,ThierryBaron3,Anne-Gae¨lleBiacabe3,StefanieCzub4,MichaelP. Heaton1,TimothyP.L.Smith1,WilliamW.Laegreid1¤ 1UnitedStatesDepartmentofAgriculture(USDA),AgriculturalResearchService(ARS),U.S.MeatAnimalResearchCenter(USMARC),ClayCenter,Nebraska,UnitedStates ofAmerica,2USDA,ARS,NationalAnimalDiseaseCenter,Ames,Iowa,UnitedStatesofAmerica,3AgenceFranc?aise deSe′curite′ SanitairedesAliments(AFSSA),Unite′ ATNC, Lyon, France, 4National OIE BSE Reference Laboratories, Pathology/Virology/Wildlife Diseases, Animal Diseases Research Institute/Canada, Food Inspection Agency,Lethbridge/Alberta,Canada Abstract Background:Atypicalbovinespongiformencephalopathies(BSEs)arerecentlyrecognizedpriondiseasesofcattle.Atypical BSEs are rare; approximately 30 cases have been identified worldwide. We tested prion gene (PRNP) haplotypes for an associationwithatypicalBSE. Methodology/PrincipleFindings:HaplotypetaggingpolymorphismsthatcharacterizePRNPhaplotypesfromthepromoter region through thethreeprimeuntranslated region ofexon3 (25.2kb)wereused todetermine PRNPhaplotypesof six availableatypicalBSEcasesfromCanada,FranceandtheUnitedStates.Oneortwocopiesofadistinct PRNPhaplotype wereidentifiedinfiveofthesixcases(p=1.361024,two-tailedFisher’sexacttest;CI95% 0.263–0.901,differencebetween proportions).ThehaplotypespansaportionofPRNPthatincludespartofintron2,theentirecodingregionofexon3and partofthethreeprimeuntranslatedregionofexon3(13kb). Conclusions/Significance:ThisresultsuggeststhatageneticdeterminantinornearPRNPmayinfluencesusceptibilityof cattletoatypicalBSE. Citation:ClawsonML,RichtJA,BaronT,BiacabeA-G,CzubS,etal.(2008)AssociationofaBovinePrionGeneHaplotypewithAtypicalBSE.PLoSONE3(3):e1830. doi:10.1371/journal.pone.0001830 Editor:MatthewBaylis,UniversityofLiverpool,UnitedKingdom ReceivedDecember20,2007;AcceptedFebruary14,2008;PublishedMarch19,2008 Thisisanopen-accessarticledis

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