{"id":8900,"date":"2024-08-15T10:22:05","date_gmt":"2024-08-15T10:22:05","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8900"},"modified":"2024-08-15T10:22:05","modified_gmt":"2024-08-15T10:22:05","slug":"houttuynia-cordata","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/houttuynia-cordata\/","title":{"rendered":"Unders\u00f8gelse af den kemiske sammens\u00e6tning og antitumoraktiviteten af de samlede alkaloider i roden og stammen af Houttuynia cordata"},"content":{"rendered":"<p>Unders\u00f8gelse af den kemiske sammens\u00e6tning og antitumoraktiviteten af de samlede alkaloider i roden og stammen af Houttuynia cordata<br \/>\nGelsemium-sl\u00e6gten i Loganiaceae-familien er hele planten Gelsemium. Der findes tre arter af planter i denne sl\u00e6gt p\u00e5 verdensplan, nemlig Gelsemium elegans Benth. og Gelsemium romkimii Small. De er hovedsageligt udbredt i Fujian, Zhejiang, Yunnan, Guangxi, Guangdong, Hunan, Guizhou, Jiangxi og Syd\u00f8stasien i Kina; Geksemium sempervireus Ait. er hovedsageligt udbredt i lande i Nord- og Sydamerika. Hu Man Teng, ogs\u00e5 kendt som Gelsemium, Cut Intestine Grass, Da Cha Yao, Pig Ginseng osv. er en stedsegr\u00f8n tr\u00e6agtig vinranke. Hele s\u00f8jlen er meget giftig, og r\u00f8dder, st\u00e6ngler, grene og blade bruges til medicinske form\u00e5l. Den har den virkning, at den reducerer h\u00e6velser, lindrer smerter, fjerner giftstoffer og dr\u00e6ber insekter; der findes folkemedicin til avanceret behandling af kr\u00e6ftformer som lever, mave, livmoderhals, bryst og skjoldbruskkirtel, som har visse terapeutiske virkninger. Alkaloider er de vigtigste kemiske komponenter i Houttuynia cordata. Derudover indeholder den ogs\u00e5 forbindelser som steroider, triterpenoider, coumariner osv.<br \/>\nI de senere \u00e5r har unders\u00f8gelser vist, at de samlede alkaloider i Houttuynia cordata har antitumor-, beroligende og smertestillende virkninger og kan regulere immunfunktionen. Forskere har rapporteret en sammenlignende unders\u00f8gelse af intensiteten af smerter for\u00e5rsaget af seks alkaloider, herunder morfin, Hanfangji og Corydalis yanhusuo, og fundet, at de samlede alkaloider i Houttuynia cordata har en st\u00e6rkere effekt p\u00e5 at \u00f8ge smertet\u00e6rsklen end morfin. Ethanolekstraktet af Houttuynia cordata har en immunosuppressiv effekt mod cyclophosphamid hos mus. De samlede alkaloider fra Houttuynia cordata kan fremme den fagocytiske funktion af makrofager i normale mus betydeligt, men har ingen signifikant effekt p\u00e5 andre immunfunktioner hos normale mus. Forskning har vist, at toksiciteten af Houttuynia cordata hovedsageligt kommer fra indolalkaloider. Mange monomere forbindelser i de samlede alkaloider i Houttuynia cordata har h\u00f8je terapeutiske effekter, men h\u00f8j toksicitet. Dybdeg\u00e5ende forskning i denne plante er af stor betydning for den videre udvikling og udnyttelse af Houttuynia cordata, idet man s\u00f8ger efter aktive ingredienser med antitumor-, beroligende og smertestillende egenskaber og syntetiserer forbindelser med h\u00f8jere aktivitet som r\u00e5materialer.<\/p>\n<p>I denne unders\u00f8gelse blev silikagels\u00f8jlekromatografi, MCI-gel, Sephadex LH-20, HPLC og andre metoder brugt til at isolere og oprense de samlede alkaloider i rhizomet af Houttuynia cordata. I alt 9 indolalkaloider blev isoleret, herunder Gelsemium-alkaloider A, Gelsemium oxysporum, Gelsemium oxysporum, Gelsemium oxysporum, 19-(S)-Gelsemium oxysporum, 19-(R)-Gelsemium oxysporum og Gelsemium oxysporum. Og der blev udf\u00f8rt in vitro-test af antitumoraktivitet p\u00e5 disse 9 indolalkaloider. Resultaterne viste, at alkaloiden fra Houttuynia cordata havde den bedste antitumoraktivitet p\u00e5 den humane leverkr\u00e6ftcelle HepG2, mens dens h\u00e6mmende effekt p\u00e5 A549, K562 og NIH3T3 var svagere. IC50-v\u00e6rdierne for Gelsemium-alkaloider A, Gelsemium oxysporum og Houttuynia cordata-alkaloider p\u00e5 HepG2 var henholdsvis 10,02 \u00b1 0,16, 3,98 \u00b1 0,11 og 9,87 \u00b1 0,18 \u03bc M. Blandt dem har Gelsemium elegans god cytotoksisk aktivitet mod den humane leverkr\u00e6ftcelle HepG2 og har et vist potentiale for at \u00e5bne antitumorl\u00e6gemidler. Denne unders\u00f8gelse afklarede yderligere det farmakologiske grundlag for Houttuynia cordatas antitumoraktivitet ved at unders\u00f8ge den kemiske sammens\u00e6tning og antitumoraktiviteten af de samlede alkaloider i rhizomet, hvilket giver et teoretisk grundlag for udviklingen af Houttuynia cordatas alkaloider til meget effektive antitumorl\u00e6gemidler med lav toksicitet.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on the Chemical Composition and Antitumor Activity of Total Alkaloids in the Root and Stem of Houttuynia cordata The Gelsemium genus of plants in the Loganiaceae family is the entire plant of Gelsemium. There are three species of plants in this genus worldwide, namely Gelsemium elegans Benth. and Gelsemium romkimii Small. They are mainly [&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>Study on the Chemical Composition and Antitumor Activity of Total Alkaloids in the Root and Stem of Houttuynia cordata - 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\/houttuynia-cordata\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the Chemical Composition and Antitumor Activity of Total Alkaloids in the Root and Stem of Houttuynia cordata - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Chemical Composition and Antitumor Activity of Total Alkaloids in the Root and Stem of Houttuynia cordata The Gelsemium genus of plants in the Loganiaceae family is the entire plant of Gelsemium. There are three species of plants in this genus worldwide, namely Gelsemium elegans Benth. and Gelsemium romkimii Small. 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