简介：

简介：本项研究从仿红细胞出发，将增加双分子脂膜亲水性的ＰＥＧＰＥ（聚乙二醇与磷脂酰乙醇胺的衍生物）及增加双分子脂膜硬度的ＳＭ（神经鞘磷脂）掺入脂质体，比较其在体外稳定性、体内分布及清除半衰期。结果证明该类脂质体稳定性提高，体内被肝、脾清除减少，血循环中半衰期显著延长。本研究为脂质体载药至非网状内皮系统的靶向给药打下基础。

简介：TheaconitebelongstoplantsofgenusAconituminfamilyofRanunculaceaandhavenotableclinicalfunctionsintreatingrheumaticarthritis,heartfailure,etc.However,accidentsofaconitine(fromaconite)poisoningfrequentlyoccurtomanypeopletakingtheseherbs.

简介：SeventeenspeciesandtwovarietiesofEuphorbia,includingonenewvariety,werefoundinGansuProvince.Theybelongtothreesections,viz.Sect.Anisophyllum:EuphorbiabumifusaWilld.;Sect.Petaloma:E.marginataPursh;Sect.Tithymalus:E.micractinaBoiss.,E.wangiiOudejans,E.heishuiensisW.T.Wang,E.hylonomaHand.-Mzt.,E.ekinensisRu

简介：

简介：

简介：AIMTostudytheeffectofketoconazole(KTZ),aselectiveinhibitorofCYP3A,oninvivoandinvitrometabolicactivityofhepaticCYP3Ainratwithmidazolam(MDZ)asprobe,whichwasassessedbypharmacokineticparametersofMDZ.,andtoestablishasuitablemarkerorindicatorforestimatingdrugmetabolizingactivityofhepaticCYP3A.METHODS1.Invivostudy:SeveralloadingdosesofKTZpreparedinamixtureofPEG400andpropyleneglycol(9:1)wereadministratedthroughratsublingualveinfollowedbyconstantinfusionatdifferentratesthroughtailveinwithanattempttoachievecorrespondingsteady-stateplasmaconcentrationsinordertoattaincontinuousinhibitiononCYP3A.

简介：

简介：Thepresentworkisaimedtostudythepharmacokineticparametersofoptimizedrepaglinidefloatingdrugdeliverysystem(FDDS)by24factorialdesigns,followedbycomparisonwithacommerciallyavailableformulation.Themaineffectsandinteractionsofformulationvariableswerestudiedbyusingnormalandparetocharts.Theoptimizedformulationshowsafickiandiffusiondrugreleasemechanism.Pharmacokineticparametersofthedesigneddrugdeliverysystemwereevaluatedinrabbitmodels.Meanwhileasimple,specifichighperformanceliquidchromatographicmethodwasdevelopedandvalidatedasperbiopharmaceuticalspecifications,thelinearitywasobservedattherangeof110-550ng/mL(r2=0.999).Byusingmethanol-phosphatebuffer(pH2.5)(70:30,v/v)asmobilephaseattheflowrateof1.0mL/minthevalidationshowsabetterretentiontimeof5.2minforrepaglinide.AndthesamevalidationmethodwasusedforpharmacokineticprofileanalysisofrepaglinidemarketedproductsandFDDS.Thecomparativepharmacokineticresultssuchastmax,half-life,areaunderthecurve,meanresidencetimeswereincreasedsignificantlyfortherepaglinideinFDDSthanthemarketedproductofrepaglinideexceptCmaxandeliminationrateconstant.

简介：

简介：

简介：

简介：