{"id":8205,"date":"2024-08-11T20:16:31","date_gmt":"2024-08-11T20:16:31","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8205"},"modified":"2024-08-11T20:16:31","modified_gmt":"2024-08-11T20:16:31","slug":"baihuashecao","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/baihuashecao\/","title":{"rendered":"Forskning i de kemiske komponenter og antitumoraktiviteten i Hedyotis diffusa"},"content":{"rendered":"<p>Forskning i de kemiske komponenter og antitumoraktiviteten i Hedyotis diffusa<br \/>\nHedyotis diffusa Willd er en t\u00f8rret hel plante af Rubiaceae-familien, der tilh\u00f8rer sl\u00e6gten Hedyotis diffusa Willd. Den er kold af natur, bitter i smagen og s\u00f8d i smagen. Den er velegnet til hjerte-, lever-, milt- og tyktarmsmeridianerne. Hele planten bruges som medicin og er hovedsageligt udbredt i Guangxi, Fujian, Anhui, Yunnan og andre regioner i Kina. Forskning rapporterer, at Hedyotis diffusa indeholder dusinvis af forbindelser, herunder iridoider, syreforbindelser, anthraquinonforbindelser, flygtige komponenter, phenylpropanoider, coumariner og polysaccharider samt forskellige sporstoffer. Den har forskellige farmakologiske aktiviteter s\u00e5som antitumor, antiinflammatorisk, antibakteriel, antioxidant og immunforst\u00e6rkende. Hedyotis diffusa er en almindelig l\u00e6geurt i traditionel kinesisk medicin til behandling af antitumorforbindelser. Dens antitumoraktiviteter omfatter h\u00e6mning af tumorcelleproliferation, inducering af tumorcelleapoptose og tumorangiogenese, regulering af v\u00e6rtsimmunrespons og beskyttende autofagi. Det bruges i vid udstr\u00e6kning i forskellige kr\u00e6ftbehandlinger som f.eks. tumorer i ford\u00f8jelsessystemet, tumorer i det reproduktive system, tumorer i \u00e5ndedr\u00e6tssystemet og myelom. De vigtigste antitumorkomponenter i Hedyotis diffusa er ursolsyre og oleanolsyre. Antitumormekanismen for ursolsyre er at h\u00e6mme v\u00e6ksten af brystkr\u00e6ft- og tyktarmskr\u00e6ftcellelinjer ved at udl\u00f8se celleapoptose, cellecyklusstop og spille antimetastase- og antiangiogeneseegenskaber gennem forskellige molekyl\u00e6re m\u00e5l og signalveje. Oleanolsyre inducerer celleapoptose ved samtidig at regulere forskellige signalveje og biologiske processer gennem flere handlingsm\u00e5l, herunder intracellul\u00e6rt calciumniveau, NF - \u03ba B-signalvej, Notch-signalvej, JAK\/STAT3-signalvej og ekspression af ribosepolymerase. I de senere \u00e5r har mange forskere udf\u00f8rt omfattende forskning i den kemiske sammens\u00e6tning og de farmakologiske virkninger af Hedyotis diffusa og har l\u00f8bende isoleret nye forbindelser baseret p\u00e5 de farmakologiske stoffer i forskellige dele af Hedyotis diffusa. Indtil nu er der isoleret 171 forbindelser fra Hedyotis diffusa, herunder 32 cyclohexene ether terpener, 26 flavonoider, 24 anthraquinoner, 26 phenolforbindelser og deres derivater samt 50 flygtige olieforbindelser. Disse plantekemikalier og -ekstrakter har forskellige farmakologiske aktiviteter, s\u00e5som antitumor, antioxidant, antiinflammatorisk, h\u00e6mning af fibroblastproliferation, regulering af immunfunktionen og beskyttelse af nervesystemet. Dette eksperiment isolerede og rensede chloroform- og ethylacetatdelene af Hedyotis diffusa og p\u00e5viste antitumoraktiviteten af forskellige pol\u00e6re dele af Hedyotis diffusa gennem in vitro-cellefors\u00f8g.<\/p>\n<p>&nbsp;<\/p>\n<p>Dette eksperiment isolerede systematisk de kemiske komponenter fra chloroform- og ethylacetatdelene af Hedyotis diffusa og opn\u00e5ede 13 forbindelser. Blandt dem blev forbindelserne heptadecanoat, 7-hydroxytectoquinon og 2-butyl-1-hydroxyanthra-9,10-quinon f\u00f8rst isoleret fra denne plante. Den h\u00e6mmende effekt af forskellige pol\u00e6re dele og monomere forbindelser af Hedyotis diffusa p\u00e5 A549-celleproliferation blev p\u00e5vist gennem CCK8-eksperiment. Resultaterne viste, at b\u00e5de chloroform- og ethylacetatdelene af Hedyotis diffusa havde gode h\u00e6mmende virkninger p\u00e5 A549-celleproliferation, og der var et signifikant dosis-respons-forhold. Effekten af forskellige pol\u00e6re dele af Hedyotis diffusa p\u00e5 spredningen af A549-celler blev sammenlignet med cisplatin. N\u00e5r l\u00e6gemiddelkoncentrationen n\u00e5ede 200 \u03bc g\/mL, var det kun kloroformekstrakt, der var mere effektivt end cisplatin. N\u00e5r l\u00e6gemiddelkoncentrationen n\u00e5ede 400 \u03bc g\/mL, var b\u00e5de chloroformekstrakt og ethylacetatekstrakt mere effektive end cisplatin. Ud fra dette kan det fastsl\u00e5s, at chloroform- og ethylacetatdelene af Hedyotis diffusa er de aktive steder for anti-lungekr\u00e6ft A549-celler, og disse to dele vil v\u00e6re m\u00e5lene for isolering af aktive stoffer. Gennem screeningseksperimenter p\u00e5 den h\u00e6mmende proliferationsaktivitet af forbindelser p\u00e5 A549-celler blev det fundet, at betulinsyre, oleanolsyre og ursolsyre har gode h\u00e6mmende virkninger p\u00e5 A549-celler i samme koncentration. H\u00e6mningshastighederne for betulinsyre og oleanolsyre steg markant med stigningen i l\u00e6gemiddelkoncentrationen, og begge havde en tendens til at stabilisere sig ved 16-20 \u03bc mol\/L. Inhiberingshastigheden for ursolsyre forblev relativt stabil inden for omr\u00e5det 1-8 \u03bc mol\/L og steg derefter med stigende koncentration og n\u00e5ede 68,45% ved 20 \u03bc mol\/L. I koncentrationsomr\u00e5det 1-20 \u03bc mol\/L, sammenlignet med den positive kontrol cisplatin, var h\u00e6mningshastigheden for betulinsyre h\u00f8jere ved koncentrationer p\u00e5 16 \u03bc mol\/L og 20 \u03bc mol\/L end cisplatin; H\u00e6mningshastigheden for ursolsyre er h\u00f8jere end for cisplatin, n\u00e5r koncentrationen overstiger 16 \u03bc mol\/L; H\u00e6mningshastigheden for oleanolsyre er sammenlignelig med cisplatin ved 4-12 \u03bc mol\/L, men h\u00f8jere end cisplatin ved koncentrationer p\u00e5 over 12 \u03bc mol\/L. Tidligere unders\u00f8gelser har vist, at de kemiske komponenter i Hedyotis diffusa, s\u00e5som terpener, antraquinoner, steroler, flavonoider og polysaccharider, har fremtr\u00e6dende anticancereffekter. Forskning i den terapeutiske effekt og mekanisme mod tumorer bruger ofte vand- eller alkoholekstrakter af Hedyotis diffusa til at virke p\u00e5 forskellige tumorceller for at observere anti-tumoreffekter in vitro. Resultaterne af dette eksperiment giver et teoretisk grundlag for den grundl\u00e6ggende forskning i de anti-tumoraktive stoffer i Hedyotis diffusa.<\/p>","protected":false},"excerpt":{"rendered":"<p>Research on the Chemical Components and Antitumor Activity of Hedyotis diffusa Hedyotis diffusa Willd is a dried whole plant of the Rubiaceae family, belonging to the genus Hedyotis diffusa Willd. It is cold in nature, bitter in taste, and sweet in taste. It is suitable for the heart, liver, spleen, and large intestine meridians. The [&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>Research on the Chemical Components and Antitumor Activity of Hedyotis diffusa - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/da\/baihuashecao\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research on the Chemical Components and Antitumor Activity of Hedyotis diffusa - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research on the Chemical Components and Antitumor Activity of Hedyotis diffusa Hedyotis diffusa Willd is a dried whole plant of the Rubiaceae family, belonging to the genus Hedyotis diffusa Willd. It is cold in nature, bitter in taste, and sweet in taste. It is suitable for the heart, liver, spleen, and large intestine meridians. 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