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基于肠道菌群探讨大黄灌肠改善肠道屏障延缓CKD的机制研究 Title:MechanisticStudyofImprovingIntestinalBarrierandDelayingCKDthroughRhubarbEnemaBasedonGutMicrobiota Abstract: Chronickidneydisease(CKD)isaprogressivedisorderthataffectsmillionsofpeopleworldwide.ThedysfunctionoftheintestinalbarrierhasbeenimplicatedinthepathogenesisandprogressionofCKD.TheemergingfieldofgutmicrobiotaresearchofferspromisinginsightsintounderstandingtheintricaterelationshipbetweenguthealthandCKD.Thispaperaimstoexplorethemechanismsbywhichrhubarbenema,throughmodulationofgutmicrobiota,canimprovetheintestinalbarrieranddelayCKDprogression. 1.Introduction 1.1CKDandIntestinalBarrierDysfunction 1.2GutMicrobiotaandCKD 1.3RationaleforRhubarbEnema 2.Methods 2.1AnimalModelEstablishment 2.2RhubarbEnemaAdministration 2.3SampleCollectionandAnalysis 3.Results 3.1EffectofRhubarbEnemaonGutMicrobiotaComposition 3.2ChangesinIntestinalBarrierFunction 3.3MolecularPathwaysInvolvedinGutBarrierMaintenance 4.Discussion 4.1ModulationofGutMicrobiotaCompositionbyRhubarbEnema 4.2ImprovementofIntestinalBarrierFunction 4.3PotentialMolecularMechanismsUnderlyingCKDDelay 5.Conclusion 5.1ImplicationsoftheStudy 5.2FutureDirections 1.Introduction 1.1CKDandIntestinalBarrierDysfunction Chronickidneydisease(CKD)isaglobalhealthburdencharacterizedbyprogressivekidneydamageanddeclineinrenalfunction.Increasingevidencesuggestsabidirectionalrelationshipbetweenthekidneysandthegut,withgutdysfunctionplayingacrucialroleinCKDprogression.Theintestinalbarrier,composedofepithelialcellsandtightjunctionproteins,maintainsthebalancebetweenabsorptionanddefenseagainstluminalpathogens.Disruptionoftheintestinalbarriercanleadtotranslocationofgut-derivedtoxinsandbacterial-derivedproductsintothecirculation,initiatinganinflammatoryresponseandexacerbatingkidneydamage. 1.2GutMicrobiotaandCKD Thegutmicrobiota,acomplexcommunityofmicroorganismsresidingintheintestines,hasemergedasacentralplayerinhealthanddisease.Alteredgutmicrobiotacomposition,knownasdysbiosis,hasbeenobservedinCKDpatientsandanim