{"id":8209,"date":"2024-08-11T20:18:22","date_gmt":"2024-08-11T20:18:22","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8209"},"modified":"2024-08-11T20:18:22","modified_gmt":"2024-08-11T20:18:22","slug":"hairy-cliff-bean-vine","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/hairy-cliff-bean-vine\/","title":{"rendered":"In vitro- og in vivo-metabolisme og farmakokinetik af et chalcon-ekstrakt fra den beh\u00e5rede klippeb\u00f8nne-ranke"},"content":{"rendered":"<p>In vitro- og in vivo-metabolisme og farmakokinetik af et chalcon-ekstrakt fra den beh\u00e5rede klippeb\u00f8nne-ranke<br \/>\nNaturlige forbindelser har bidraget v\u00e6sentligt til opdagelsen af nye l\u00e6gemidler, og flavonoider er en vigtig kategori af naturlige produkter, der har tiltrukket sig stor opm\u00e6rksomhed p\u00e5 grund af deres fremragende antiinflammatoriske, antitumorale, antibakterielle, maves\u00e5rsbeskyttende, hepatobeskyttende og hjerte-kar-beskyttende aktiviteter. Den antiinflammatoriske aktive forbindelse 2,5-dimethoxyfuran [4 \", 5\": 3,4] chalcone, udvundet og isoleret fra stammen af Millettia velutina Dunn i b\u00e6lgplantefamilien, h\u00f8rer til chalcone-forbindelser. Forskningsresultaterne fra Ma et al. viste, at forbindelsen har en st\u00e6rk antiinflammatorisk aktivitet. In vitro-celleeksperimenter udviser det hovedsageligt god antiinflammatorisk aktivitet ved at h\u00e6mme IL-1 \u03b2-sekretion og Caspase-1-aktivering samt h\u00e6mme ASC-aggregering. Og det kan betydeligt lindre LPS-induceret akut chok hos mus i in vivo-eksperimenter. I de tidlige stadier af udviklingen af nye l\u00e6gemidler kan forskning i l\u00e6gemiddelmetabolisme hj\u00e6lpe med hurtigt at identificere forbindelser, der er sikre, effektive og har gode farmakokinetiske egenskaber, eliminere ukvalificerede forbindelser p\u00e5 forh\u00e5nd og spare forsknings- og udviklingsomkostninger. I \u00f8jeblikket har der ikke v\u00e6ret nogen rapporter om in vivo- og in vitro-metaboliske data for denne forbindelse i indenlandske og udenlandske tidsskrifter. Dette studie unders\u00f8gte metabolitterne af 2,5-dimethoxyfuran [4 \", 5\": 3,4] chalcon i levermikrosomer af fem arter, herunder rotter, mus, rhesusaber, Beagle-hunde og mennesker, samt i rotter. De farmakokinetiske unders\u00f8gelser af 2,5-dimethoxyfuran [4 \", 5\": 3,4] chalcon og dets metabolit (M1) in vitro og in vivo blev ogs\u00e5 udf\u00f8rt for at udforske forbindelsens hovedstofgrundlag og l\u00e6gge grunden til yderligere mekanismeforskning.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Den beh\u00e5rede klippeb\u00f8nne er en af de traditionelle kinesiske l\u00e6gemidler med gode antiinflammatoriske virkninger. Pr\u00f8ve 1, som er den vigtigste antiinflammatoriske komponent, har f\u00e5et begr\u00e6nset forskning b\u00e5de nationalt og internationalt, og der har ikke v\u00e6ret nogen rapporter om dens in vitro og in vivo metabolisme. UPLC-QE Orbitrap MS-metoden, der blev brugt i dette eksperiment, har h\u00f8j f\u00f8lsomhed og specificitet og har betydelige fordele i forbindelse med opdagelse og identifikation af metabolitter. Samtidig blev metabolitterne i pr\u00f8ve 1 i levermikrosomer fra fem arter, herunder mus, rotter, aber, hunde og mennesker, identificeret som M1 og M2, og metabolitterne M1 og M2 blev fundet in vivo M2\u3001M3\u3001M4\u3001M5\uff0c Bagefter blev strukturen af hver metabolit udledt baseret p\u00e5 massespektrometri-fragmenterne, og M1 blev syntetiseret ved hj\u00e6lp af syntetiske metoder, hvilket beviste n\u00f8jagtigheden og p\u00e5lideligheden af den udledte forbindelsesstruktur. UFLC-MS\/MS-metoden blev brugt til kvantitativ analyse af in vivo-pr\u00f8ver. Metodologisk validering viste, at metoden er stabil og p\u00e5lidelig og hurtigt kan p\u00e5vise spor af m\u00e5lforbindelser i pr\u00f8ven. Sammenlignet med v\u00e6skekromatografi og UV-analysemetoder har den h\u00f8jere f\u00f8lsomhedsfordele.<br \/>\nDe farmakokinetiske parametre for forbindelser er en vigtig indikator for evaluering af forbindelser. Gennem in vitro- og in vivo-unders\u00f8gelser er den vigtigste metabolit M1. Derefter blev stofskiftehastighederne for pr\u00f8ve 1 og M1 unders\u00f8gt i rotter, og deres farmakokinetiske parametre blev beregnet. Det viste sig, at pr\u00f8ve 1 blev omdannet til M1 in vivo og yderligere metaboliseret til M5. Dette studie unders\u00f8gte in vivo- og in vitro-metabolitterne af pr\u00f8ve 1 og udledte fem metabolitter. De farmakokinetiske parametre for pr\u00f8ve 1 og hovedmetabolitten M1 blev m\u00e5lt i rotter, og \u00e6ndringerne i plasmaet af pr\u00f8ve 1 og M1 blev udforsket. Resultaterne viste, at forbindelse 1 var ustabil in vivo og hurtigt blev metaboliseret til M1, hvilket indikerer, at dets metabolitter snarere end sig selv spillede en antiinflammatorisk rolle. Denne unders\u00f8gelse giver et teoretisk grundlag for at belyse mekanismen for antiinflammatoriske stoffer in vivo.<\/p>","protected":false},"excerpt":{"rendered":"<p>In vitro and in vivo metabolism and pharmacokinetics of a chalcone extract from the hairy cliff bean vine Natural compounds have made significant contributions to the discovery of new drugs, and flavonoids are a major category of natural products that have attracted much attention due to their excellent anti-inflammatory, anti-tumor, antibacterial, anti ulcer, hepatoprotective, and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>In vitro and in vivo metabolism and pharmacokinetics of a chalcone extract from the hairy cliff bean vine - 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