{"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\/fr\/hairy-cliff-bean-vine\/","title":{"rendered":"M\u00e9tabolisme et pharmacocin\u00e9tique in vitro et in vivo d'un extrait de chalcone provenant de la vigne de la f\u00e8ve velue"},"content":{"rendered":"<p>M\u00e9tabolisme et pharmacocin\u00e9tique in vitro et in vivo d'un extrait de chalcone provenant de la vigne de la f\u00e8ve velue<br \/>\nLes compos\u00e9s naturels ont contribu\u00e9 de mani\u00e8re significative \u00e0 la d\u00e9couverte de nouveaux m\u00e9dicaments, et les flavono\u00efdes constituent une cat\u00e9gorie majeure de produits naturels qui ont attir\u00e9 beaucoup d'attention en raison de leurs excellentes activit\u00e9s anti-inflammatoires, antitumorales, antibact\u00e9riennes, antiulc\u00e9reuses, h\u00e9patoprotectrices et de protection cardiovasculaire. Le compos\u00e9 actif anti-inflammatoire 2,5-dim\u00e9thoxyfurane [4 \", 5\" : 3,4] chalcone, extrait et isol\u00e9 de la tige de Millettia velutina Dunn de la famille des l\u00e9gumineuses, appartient aux compos\u00e9s chalcones. Les r\u00e9sultats des recherches de Ma et al. ont montr\u00e9 que ce compos\u00e9 poss\u00e8de une forte activit\u00e9 anti-inflammatoire. Dans les exp\u00e9riences cellulaires in vitro, il pr\u00e9sente principalement une bonne activit\u00e9 anti-inflammatoire en inhibant la s\u00e9cr\u00e9tion d'IL-1 \u03b2 et l'activation de la Caspase-1, ainsi qu'en inhibant l'agr\u00e9gation de l'ASC. Elle peut \u00e9galement att\u00e9nuer de mani\u00e8re significative le choc aigu induit par le LPS lors d'exp\u00e9riences in vivo sur des souris. Au cours des premi\u00e8res \u00e9tapes du d\u00e9veloppement d'un nouveau m\u00e9dicament, la recherche sur le m\u00e9tabolisme des m\u00e9dicaments peut permettre d'identifier rapidement des compos\u00e9s s\u00fbrs, efficaces et dot\u00e9s de bonnes propri\u00e9t\u00e9s pharmacocin\u00e9tiques, d'\u00e9liminer \u00e0 l'avance les compos\u00e9s non qualifi\u00e9s et de r\u00e9duire les co\u00fbts de recherche et de d\u00e9veloppement. \u00c0 l'heure actuelle, aucun rapport sur les donn\u00e9es m\u00e9taboliques in vivo et in vitro de ce compos\u00e9 n'a \u00e9t\u00e9 publi\u00e9 dans les revues nationales et \u00e9trang\u00e8res. Cette \u00e9tude a examin\u00e9 les m\u00e9tabolites du 2,5-dim\u00e9thoxyfurane [4 \", 5\" : 3,4] chalcone dans les microsomes h\u00e9patiques de cinq esp\u00e8ces, dont les rats, les souris, les singes rh\u00e9sus, les chiens Beagle et les humains, ainsi que chez les rats. Les \u00e9tudes pharmacocin\u00e9tiques du 2,5-dim\u00e9thoxyfurane [4 \", 5\" : 3,4] chalcone et de son m\u00e9tabolite (M1) in vitro et in vivo ont \u00e9galement \u00e9t\u00e9 men\u00e9es pour explorer la base de la substance principale du compos\u00e9, jetant ainsi les bases d'une recherche plus pouss\u00e9e sur les m\u00e9canismes.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Le haricot de falaise poilu est l'un des rem\u00e8des traditionnels chinois ayant de bons effets anti-inflammatoires. L'\u00e9chantillon 1, son principal composant anti-inflammatoire, a fait l'objet d'une recherche limit\u00e9e tant au niveau national qu'international, et il n'existe aucun rapport sur son m\u00e9tabolisme in vitro et in vivo. La m\u00e9thode UPLC-QE Orbitrap MS utilis\u00e9e dans cette exp\u00e9rience a une sensibilit\u00e9 et une sp\u00e9cificit\u00e9 \u00e9lev\u00e9es et pr\u00e9sente des avantages significatifs pour la d\u00e9couverte et l'identification des m\u00e9tabolites. En m\u00eame temps, les m\u00e9tabolites de l'\u00e9chantillon 1 dans les microsomes h\u00e9patiques de cinq esp\u00e8ces, dont les souris, les rats, les singes, les chiens et les humains, ont \u00e9t\u00e9 identifi\u00e9s comme M1 et M2, et les m\u00e9tabolites M1 et M2 ont \u00e9t\u00e9 trouv\u00e9s in vivo M2\u3001M3\u3001M4\u3001M5\uff0c Ensuite, la structure de chaque m\u00e9tabolite a \u00e9t\u00e9 d\u00e9duite sur la base des fragments de spectrom\u00e9trie de masse, et M1 a \u00e9t\u00e9 synth\u00e9tis\u00e9 \u00e0 l'aide de m\u00e9thodes synth\u00e9tiques, ce qui prouve l'exactitude et la fiabilit\u00e9 de la structure du compos\u00e9 d\u00e9duit. La m\u00e9thode UFLC-MS\/MS a \u00e9t\u00e9 utilis\u00e9e pour l'analyse quantitative d'\u00e9chantillons in vivo. La validation m\u00e9thodologique a montr\u00e9 que la m\u00e9thode est stable et fiable et qu'elle permet de d\u00e9tecter rapidement des traces de compos\u00e9s cibles dans l'\u00e9chantillon. Compar\u00e9e \u00e0 la chromatographie liquide et aux m\u00e9thodes d'analyse UV, elle pr\u00e9sente des avantages en termes de sensibilit\u00e9.<br \/>\nLes param\u00e8tres pharmacocin\u00e9tiques des compos\u00e9s sont un indicateur important pour l'\u00e9valuation des compos\u00e9s. Des \u00e9tudes in vitro et in vivo ont montr\u00e9 que le principal m\u00e9tabolite est M1. Les taux m\u00e9taboliques de l'\u00e9chantillon 1 et de M1 ont ensuite \u00e9t\u00e9 \u00e9tudi\u00e9s chez le rat et leurs param\u00e8tres pharmacocin\u00e9tiques ont \u00e9t\u00e9 calcul\u00e9s. On a constat\u00e9 que l'\u00e9chantillon 1 \u00e9tait converti en M1 in vivo et qu'il \u00e9tait ensuite m\u00e9tabolis\u00e9 en M5. Cette \u00e9tude a examin\u00e9 les m\u00e9tabolites in vivo et in vitro de l'\u00e9chantillon 1 et en a d\u00e9duit cinq m\u00e9tabolites. Les param\u00e8tres pharmacocin\u00e9tiques de l'\u00e9chantillon 1 et du principal m\u00e9tabolite M1 ont \u00e9t\u00e9 mesur\u00e9s chez le rat, et les changements dans le plasma de l'\u00e9chantillon 1 et de M1 ont \u00e9t\u00e9 \u00e9tudi\u00e9s. Les r\u00e9sultats ont montr\u00e9 que le compos\u00e9 1 \u00e9tait instable in vivo et rapidement m\u00e9tabolis\u00e9 en M1, ce qui indique que ce sont ses m\u00e9tabolites plut\u00f4t que lui-m\u00eame qui jouent un r\u00f4le anti-inflammatoire. Cette \u00e9tude fournit une base th\u00e9orique pour \u00e9lucider le m\u00e9canisme des substances anti-inflammatoires 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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