摘要
ObjectivesTodevelopasimple,accurateandreproduciblemethod,whichcombinesmacroandhistopathologicaltechniquesfordeterminingthedegreeoflipiddepositioningeneticallymodifiedmice.MethodTheentireaortasfromC57BL/6,ldlr-/-andapoE-/-micewerestainedwithSudanⅣusingeitherinvivoperfusionortraditionalinvitroenfacestainingtechniques.Histologicalsectionsofaorticrootandheartswereembeddedintissuefreezingmediumandcutwithacryostat,thenstainedwithOilRedO.Thecalculatedaorticrootareabasedontheaorticrootcircumferencewasusedtoreducemeasurementerrors.ResultsTheinvitroenfacestainingcanstainallfat,whichincludetheadventitialtissuearoundaorta.Howevertheinvivoperfusionstainingcanspecificallystainthefattydepositioninsideofaorta.Bothentireaortaandaorticrootsectionstainingshowedthattherewasahighlysignificantincreaseinfattydepositionintheaortasofthegeneticmodifiedmice.Althoughallmicegeneticbackgroundwassame,theapoE-/-micehadlargeratheroscleroticlesionsthanldlr-/-mice.ConclusionsThenewinvivoperfusionmethodismoreaccuratethantheinvitroenfacemethod.Thecombinationofthesemacroandmicroscopictechniquesovercomestheshortcomingsoftheearlierpublishedmethodswhicharegenerallylimitedtothemeasurementoffattyredstainingareasonly,neglectingnon-specificadventitialfatstainingaroundaortaandaorticrootsectiontissuedistortion.
出版日期
2011年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)