简介：Gutmicrobiotaareinvolvedinthedevelopmentorpreventionofvariousdiseasessuchastype2diabetes,fattyliver,andmalignancysuchascolorectalcancer,breastcancerandhepatocellularcarcinoma.Alzheimer’sdisease,osteoporosis,sarcopenia,atheroscleroticstrokeandcardiovasculardiseasearemajordiseasesassociatedwithdecreasedactivitiesofdailyliving(ADL),especiallyinelderlypeople.Recentanalyseshaverevealedtheimportanceofgutmicrobiotainthecontrolofthesediseases.Thecompositionordiversityofthesemicrobiotaisdifferentbetweenpatientswiththeseconditionsandhealthycontrols,andadministrationofprobioticsorprebioticshasbeenshowneffectiveinthetreatmentofthesediseases.Gutmicrobiotamayaffectdistantorgansthroughmechanismsthatincluderegulatingtheabsorptionofnutrientsand/ortheproductionofmicrobialmetabolites,regulatingandinteractingwiththesystemicimmunesystem,andtranslocatingbacteria/bacterialproductsthroughdisruptedmucosalbarriers.Thus,thegutmicrobiotamaybeimportantregulatorsinthedevelopmentofdiseasesthataffectADL.Althoughadequateexerciseandproperdietareimportantforpreventingthesediseases,theircombinationwithinterventionsthatmanipulatethecompositionand/ordiversityofgutmicrobiotacouldbeapromisingstrategyformaintaininghealthconditionandpreservingADL.ThisreviewthussummarizescurrentunderstandingoftheroleofgutmicrobiotainthedevelopmentorpreventionofdiseasescloselyassociatedwiththemaintenanceofADL.

简介：PolysaccharideextractedfromEnteromorphaproliferapossessedexcellentbiologicalactivities,butitsmolecularweightwasgreatlyhighwhichinfluencedtheactivity.OrganicSehadhigherbiologicalactivitiesandwassaferthaninorganicSespecies.Inthepresentstudy,Enteromorphapolysaccharidewasdegradedtolowmolecularweightbyfree-radicaldegradationmethodofH2O2andascorbicacid.Bysinglefactorandorthogonalexperiments,theoptimaldegradationconditionswerereactiontimeof2h,reactiontemperatureof50℃,H2O2/ascorbicacid(n/n=1:1)concentrationof15mmolL-1,andsolid-liquidratioof1:50(gmL-1).Then,thedegradedpolysaccharidewaschemicallymodifiedtoobtainitsselenidederivativesbynitricacid-sodiumselenitemethod.Theseleniumcontentwas1137.29μgg?1,whilethecontentofsulfateradicalhadnochange.IRspectraindicatedthattheseleniteestergroupwasformed.Degradedpolysaccharideselenidewascharacterizedandevaluatedforantioxidant,antifungalandantibacterialactivities.TheresultsshowedthatdegradedpolysaccharideselenidehadstrongcapacityofscavengingDPPHand·OHfreeradical.IthadsignificantantibacterialpropertiesforEscherichiacoli,BacillussubtilisandSalmonellaspp.,anditalsohadsignificantantifungalpropertiesforAppleanthrax.Theresultascertaineddegradationandselenylationmodificationdidnotchangethemainstructureofpolysaccharides.Itwaspossiblethatfree-radicaldegradationwasaneffectivewayforenhancingantioxidantactivitytodecreasemolecularweightofpolysaccharides.

简介：四新triterpenesaponins，和五已知的混合物(5-9)，mandshunosidesF-I(1-4)从铁线莲mandshurica的根和根茎被孤立。他们的结构根据分光镜的证据和水解作用产品被阐明。Bisdesmosidicsaponin(3-9)在51.3%-的范围与抑制比率显示出没有生产的谦虚抑制64.6%在50摩尔

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简介：Notopterygiumincisum(QH)hasbeenusedforthetreatmentofrheumatoidarthritis(RA),andvolatileoilsmaybeitsmainlybioactiveconstituents.ThepresentstudywasdesignedtoanalyzethevolatilecompoundsinQHandtodeterminetheanti-arthriticcapacityofNotopterygiumvolatileoilsandthepotentialmechanismofaction.ThevolatilecompoundsanalysiswasconductedbyGC-MS.Theanti-arthriticcapacitytestofthevolatileoilswasconductedonadjuvant-inducedarthritis(AIA)rats.Theanti-inflammatorypropertywastestedinNOreleasemodelinRAW264.7cells.Endothelialcellswereusedtoevaluatetheanti-proliferativeandanti-tubeformativeeffects.70compoundswereanalyzedbyGC-MSinthevolatileoils.NotopterygiumvolatileoilsweakenedtheratAIAinadose-dependentmanner(2,4,and8gcrudedrug/kg).TheNOproductionbyRAW264.7wasdecreasedbymorethan50%inNotopterygiumvolatileoils(5,15,and45μg·mL-1)pretreatedgroups.NotopterygiumvolatileoilsalsoinhibitedEAhy926cellproliferationandfurtherdelayedEAhy926cellcapillarytubeformationinaconcentration-dependentmanner.Theanti-NOproductive,anti-proliferative,andanti-tubeformativeeffectsofNotopterygiumvolatileoilsstronglysuggestedthatthetherapeuticeffectofQHinAIAmightberelatedtothepotentanti-inflammatoryandanti-angiogeniccapacitiesofthevolatileoils.

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