{"id":8918,"date":"2024-08-15T10:33:03","date_gmt":"2024-08-15T10:33:03","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8918"},"modified":"2024-08-15T10:33:03","modified_gmt":"2024-08-15T10:33:03","slug":"the-stem-of-niujiaogua","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/stammen-af-niujiaogua\/","title":{"rendered":"Unders\u00f8gelse af den kemiske sammens\u00e6tning og cytotoksiske aktivitet af stammen af Niujiaogua"},"content":{"rendered":"<p>Unders\u00f8gelse af den kemiske sammens\u00e6tning og cytotoksiske aktivitet af stammen af Niujiaogua<br \/>\nCalotropis gigantea (L.) Dry. ex Ait f. Ogs\u00e5 kendt som Broken Intestine Grass eller Five Dog Lying Flower Heart er det en plante af Calotropis-sl\u00e6gten i Asclepiadaceae-familien. Den er hovedsageligt udbredt i dele af Kina, Indien, Vietnam, Sri Lanka og Myanmar samt i provinserne Yunnan, Hainan, Guangdong og Sichuan i Kina. Den vokser p\u00e5 solrige skr\u00e5ninger i lav h\u00f8jde, \u00e5bne marker og strande. Niujiaogua virker sliml\u00f8sende, astmalindrende, antibakteriel, antioxiderende, antiinflammatorisk og afgiftende. Bullhornmelonblomster virker smertestillende; stilken har en leverbeskyttende effekt; bladene virker mod diarr\u00e9; m\u00e6lk fremmer s\u00e5rheling og har antibakterielle egenskaber. Moderne forskning har vist, at croissanter indeholder forskellige kemiske komponenter, herunder hjerteglykosider, steroider, triterpenoider og flavonoider. P\u00e5 grund af dens betydelige antitumoraktivitet har mange forskere isoleret, oprenset og strukturelt identificeret de kemiske komponenter i cowpea. For bedre at kunne studere det kemiske grundlag for Niujiaogua-planten og yderligere forbedre dens biologiske aktivitet unders\u00f8gte denne unders\u00f8gelse den kemiske sammens\u00e6tning og cytotoksiske aktivitet af Niujiaogua-stammen. Forskellige kromatografiske separationsteknikker s\u00e5som silicagel og Sephadex LH-20 blev brugt til at adskille ethylacetatfraktionen af ethanolekstraktet af Niujiaogua-stammen, og forbindelsens in vitro-cytotoksiske aktivitet mod fire typer tumorceller blev bestemt ved MTT-assay.<\/p>\n<p>Ti forbindelser blev isoleret fra stilken af den hornede kalebas, hvor forbindelserne 1, 3, 4 og 6-8 var de f\u00f8rste, der blev isoleret fra denne plante. Blandt dem er forbindelserne 1-4 lignaner og forbindelserne 8-10 phenolforbindelser. Den cytotoksiske aktivitet af forbindelserne 1-10 mod fire typer tumorer blev testet, og resultaterne viste, at forbindelserne 4 og 5 havde varierende grader af cytotoksisk aktivitet mod de fire typer tumorceller med IC50-v\u00e6rdier fra henholdsvis 12,37 til 49,29 og 0,29 til 0,98 \u03bc M. Andre forbindelser viste ikke signifikant aktivitet. If\u00f8lge litteraturrapporter har forbindelse 4 svag cytotoksisk aktivitet mod human ovariecancercellelinje SK-OV-3. Forbindelse 5, fruktosid, er den vigtigste hjerteglykosidkomponent i hornkalebassen, der udg\u00f8r mere end 2,8% af ekstraktindholdet, og har st\u00e6rk cytotoksisk aktivitet mod forskellige tumorceller. Nylige unders\u00f8gelser har vist, at fruktosid kan fremkalde mitokondriemedieret apoptose i melanomceller, hvilket kan v\u00e6re med til at forebygge melanom. Det tyder p\u00e5, at forbindelsen kan have mange potentielle aktiviteter, som endnu ikke er blevet udviklet, og som har v\u00e6rdi for yderligere forskning.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on the Chemical Composition and Cytotoxic Activity of the Stem of Niujiaogua Calotropis gigantea (L.) Dry. ex Ait f. Also known as the Broken Intestine Grass or the Five Dog Lying Flower Heart, it is a plant of the Calotropis genus in the Asclepiadaceae family. It is mainly distributed in parts of China, India, [&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 Cytotoxic Activity of the Stem of Niujiaogua - 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\/stammen-af-niujiaogua\/\" \/>\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 Cytotoxic Activity of the Stem of Niujiaogua - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Chemical Composition and Cytotoxic Activity of the Stem of Niujiaogua Calotropis gigantea (L.) Dry. ex Ait f. Also known as the Broken Intestine Grass or the Five Dog Lying Flower Heart, it is a plant of the Calotropis genus in the Asclepiadaceae family. 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Dry. ex Ait f. Also known as the Broken Intestine Grass or the Five Dog Lying Flower Heart, it is a plant of the Calotropis genus in the Asclepiadaceae family. 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