简介:Objective:ThisstudyaimstoexploretheassociationbetweenthedensityofHimalayanmarmot(Marmotahimalayana)andclimaticfactorssuchastemperature,precipitation,humidity,vapourpressure,sunshinepercentage,windvelocity,whicharecloselyassociatedwithglobalclimatechange,andtoprovideareferenceforplaguepreventionandcontrol.Methods:WeconductedaregressionanalysistofindthepossibleclimatefactorsassociatedwiththedensityofHimalayamarmot,andanalyzedtheresponsecharactersofHimalayanmarmottoclimatechange.Results:Dailyprecipitationdays(>=0.1mm)andsunshinepercentageweresignificantlyassociatedwiththedensityofHimalayanmarmot(p<0.01).Conclusion:Climatechangewasassociatedwiththeriskofplague.ThisphenomenonisvaluableforHimalayanmarmotandplagueprevention.MorestudiesareneededtounderstandtheimpactofclimatechangeonHimalayanmarmotandplague.
简介:INTRODUCTIONThedisease,damageorlossoftissueandorgancanseriouslyaffectthehumanlife,evenleadstomaimedordeath,thatitshouldnotbeignored.Todate,autograftsandallograftstransplantationarethemostusuallyusedmethodstorepairdefectsoftissuesandorgans.
简介:Osteoblastsofratculturedinvitrowerestimulatedwithpulsed50Hzelectromagneticfieldandbasicfibroblastgrowthfactor(bFGF).TheMTTmethod,flowcytometryandhistochemistrystainingwereusedtodetectcellproliferation,cellcycleandalkalinephosphatase.Theresultsindicated:afterstimulatedby1mTelectromagneticfield,thecellsaremoreabundant,havemoreSphasepercentages,2mTelectromagneticfieldhavenoevidenteffectoncells'growth;comparedwithelectromagneticfield,thecellsstimulatedbybFGFaremoreabundantandhavelargerSphaseratios.ElectromagneticfieldandbFGFhavenoeffectoncells,alkalinephosphatase.Therefore,weconcludedthatelectromagneticfieldcanenhanceosteoblastsgrowthlikesomegrowthfactorsuchasbasicfibroblastgrowthfactor,andtheosteoblasts',characteristicswasnotchanged.
简介:客观:在牛的心包的非细胞组成的新鲜标本在endothelial细胞(Ecs)的粘附和增长上调查脉管的endothelial生长因素(VEGF)和它的效果的绑定和版本,它被heparinization.Methods修改:牛的心包的Cross-linked非细胞组成的新鲜标本是由三个方法的heparinized:(1)heparinizedN-(3-dimethylaminopropyl)-N'-ethylcarbodiimidehydrochloride(EDC)对待非细胞组成的织物样品;(2)(ethyleneimine)(PEI)heparinizedpoly对待
简介:Guidedtissueregenerationisanewapproachinthereconstructivesurgeryofperipheralnerves.Biomimeticconductswereconstructfromtheexpandedveinonwhoseinnersurfacecompositedwithamnionfilaments(cf.Fig1).