简介：目的：探究人参内生细菌gel5菌株对人参病原菌的作用机理，明确ge15菌株胞外分泌液中抑菌活性成分的提取方法、活性组分及抑菌活性物质的稳定性。方法：通过硫酸铵沉淀、浓盐酸沉淀及饱及正丁醇萃取等方法获得菌株发酵液中抑菌活性成分；牛津杯法测定提取成分的抑菌活性。结果：从ge15菌株发酵液得到的提取液均有抑菌活性；对发酵上清液经高温和蛋白酶K处理，抑菌活性未见明显变化。结论：ge15菌株能产生多种抑菌活性成分；抑菌成分对高温和蛋白酶K稳定。

简介：Theuterinetetaniccontractionanduterinearterybloodflowreductionarepossiblereasonsforprimarydysmenorrhea（PD）.Inthepresentstudy,weaimedtoevaluatetheuterinerelaxanteffectandtheinfluenceonuterinearterybloodvelocityofGe-GenDecoction（GGD）,awell-knownChineseherbalformula.InfemaleICRmice,uterinecontractionwasinducedbyoxytocinexposurefollowingestradiolbenzoatepretreatment,andtheuterinearterybloodvelocitywasdetectedbyDopplerultrasound.HistopathologicalexaminationoftheuterinetissuesampleswereperformedbyH&Estaining.Exvivostudiesdemonstratedthatoxytocin,posteriorpituitary,oracetylcholineinducedcontractionsinisolatedmouseuterus.GGDinhibitedbothspontaneousandstimulatedcontractions.InvivostudydemonstratedthatGGDsignificantlyreducedoxytocin-inducedwrithingresponseswithamaximalinhibitionof87%.FurtherstudydemonstratedthatGGDnormalizedoxytocin-inducedabnormalitiesofprostaglandinsF2alpha(PGF2α)andCa2+inmice.Inaddition,injectionofoxytocininducedadecreaseinuterinearterybloodflowvelocity.PretreatmentwithGGDreversedtheoxytocinresponseonbloodflowvelocity.HistopathologicalexaminationshowedpretreatmentwithGGDalleviatedinflammationandedemaintheuteruswhencomparedwiththemodelgroup.BothexvivoandinvivoresultsindicatedthatGGDpossessedasignificantspasmolyticeffectonuterinetetaniccontractionaswellasimprovementonuterinearterybloodvelocitywhichmayinvolvePGF2αandCa2+signaling,suggestingthatGGDmayhaveaclinicpotentialinPDtherapy.

简介：目的：比较六种代料栽培配方栽培茯苓前后土壤活性变化，探讨影响茯苓生长的土壤活性因素，指导代料配方的改良。提高代料栽培茯苓的产量和质量。方法：以传统松木栽培茯苓为对照，选择土壤中含水量、pH、有机物、多种酶和微生物等土壤活性指标，采用现代分析方法，测定六种代料栽培茯苓前后的土壤活性变化。结果：代料配方与传统松木栽培茯苓前后的各项土壤活性指标均发生变化；加权综合分析表明，代料配方E试验组与传统松木对照组G的土壤活性变化较接近。结论：为优选代料配方及其改善栽培茯苓的土壤环境提供了参考依据。

简介：Si-Miao-Wan(SMW),atradiationalChinesemedicinalformulaconsistingofAtractylodisRhizoma,PhellodendriChinensisCortex,CoicisSemen,andAchyranthisBidentataeRadix,hasbeenusedforthetreatmentofgoutandgoutyarthritisformanyyears.Inthepresentstudy,aliquidchromatographyquadrupole-time-of-flightmassspectrometry(LC-Q-TOF/MS)methodwasestablishedtoidentifythemultipleconstituentsofSMWanditsmetabolitesinratbiologicalsamplesafteroraladministration.Atotalof48compoundsinSMW,including21alkaloids,12organicacids,2terpenes,3lactones,2phytosterols,and8othercompounds,weretentativelycharacterizedwiththediagnostic-ionfilteringstrategy.BasedonthediagnosticionsappliedtoidentifycompoundsinSMW,28prototypecompoundsand10metaboliccompoundsweredetectedinthebiologicalsamples.ThiswasthefirstcomprehensivedrugmetabolisminvestigationofSMWinrats.Thedevelopedmethodcouldbeausefulmeansforidentifyingthemulti-componentsinSMWandthemetaboliccomponents.TheresultsmayhelpexplorethepossiblemetabolicprocessesandmechanismofactionforSMWinvivo.