{"id":4259,"date":"2024-08-04T09:00:30","date_gmt":"2024-08-04T09:00:30","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=4259"},"modified":"2024-08-04T09:00:30","modified_gmt":"2024-08-04T09:00:30","slug":"chinese-ephedra","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/chinese-ephedra\/","title":{"rendered":"Forskning i de kemiske komponenter i Ephedra sinica"},"content":{"rendered":"<p>Forskning i de kemiske komponenter i Ephedra sinica<br \/>\nEphedra intermedia Schrenk et C.A. Mey. er en af de tre medicinske ephedraer, der er medtaget i 2020-udgaven af den kinesiske farmakop\u00e9. Den blev f\u00f8rste gang opf\u00f8rt i Shennong Bencao Jing og er klassificeret som en middelgod plante. Den har en skarp og let bitter smag og h\u00f8rer til lunge- og bl\u00e6remeridianerne. Den virker svedtransporterende, fordriver kulde, fremmer lungecirkulationen, lindrer astma og fremmer diurese og reducerer h\u00e6velse. Ephedra sinica er hovedsageligt udbredt i Xinjiang, Indre Mongoliet, Xizang og andre provinser og regioner i Kina. Den er almindelig i det nordvestlige Kina. Den vokser i t\u00f8rre \u00f8rkener, strandomr\u00e5der, t\u00f8rre bjergskr\u00e5ninger eller gr\u00e6sarealer i hundredevis til mere end 2000 meter over havets overflade. Den spiller en vigtig rolle i opretholdelsen af balancen i det \u00f8kologiske milj\u00f8 og er kendt som \"\u00f8rkenens skat\". I slutningen af det 20. \u00e5rhundrede var kinesisk ephedra for det meste i vild tilstand med f\u00e5 dyrkede produkter. Samtidig indf\u00f8rte landm\u00e6nd og hyrder en h\u00f8stmetode, hvor de \"skar gr\u00e6s og fjernede r\u00f8dder\", og forskellige virksomheder konkurrerede om ephedra-ressourcerne, hvilket resulterede i stor skade p\u00e5 de vilde ressourcer af kinesisk ephedra. I \u00f8jeblikket er kinesisk ephedra medtaget i den anden gruppe af \"National Key Protected Wild Medicinal Species List\". Med den fortsatte udvikling af planteteknologi og beskyttelse af eksisterende naturressourcer har kinesisk ephedra gradvist dannet standardiseret plantning i Ningxia, Indre Mongoliet, Xinjiang og andre steder, og f\u00e6nomenet ressourceknaphed er blevet forbedret.<br \/>\nModerne forskning har vist, at de kemiske komponenter i ephedra hovedsageligt omfatter alkaloider, flavonoider, flygtige olier, lignaner og polysaccharider, som har farmakologiske virkninger s\u00e5som antiinflammatorisk, antiastma, immunosuppressiv og antitumor. P\u00e5 baggrund af vores tidligere forskning i den kemiske sammens\u00e6tning af Ephedra sinica og Ephedra sinica og for yderligere at afklare og udforske det farmakologiske stofgrundlag for Ephedra sinica unders\u00f8ger vi nu den kemiske sammens\u00e6tning af 50% acetoneekstrakt af Ephedra sinica og evaluerer in vitro-antiastmaaktiviteten af de opn\u00e5ede monomere forbindelser for yderligere at berige det farmakologiske stofgrundlag for Ephedra sinica.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4260\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-43.png\" alt=\"\" width=\"804\" height=\"612\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-43.png 804w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-43-768x585.png 768w\" sizes=\"(max-width: 804px) 100vw, 804px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4261\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-41.png\" alt=\"\" width=\"826\" height=\"418\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-41.png 826w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-41-768x389.png 768w\" sizes=\"(max-width: 826px) 100vw, 826px\" \/><\/p>\n<p>Som en l\u00e6geplante med en lang historie i Kina er ephedra blevet foretrukket af mange eksperter og forskere, og dens sammens\u00e6tning og farmakologiske virkninger er blevet systematisk unders\u00f8gt. Men efter at have konsulteret relevant litteratur fandt vi ud af, at forskningen for det meste har fokuseret p\u00e5 ephedra og ephedra, og at der er relativt mindre forskning i ephedra. Derfor blev der i denne unders\u00f8gelse anvendt flere kromatografiske metoder til at unders\u00f8ge den kemiske sammens\u00e6tning af 50%-acetoneekstraktet af Ephedra sinica, og 22 forbindelser blev isoleret fra det. Forbindelserne 1-11 var phenylpropanoide forbindelser, og forbindelserne 12-22 var terpenoider. Samtidig blev der udf\u00f8rt in vitro-antiastmaaktivitetsscreening p\u00e5 de opn\u00e5ede forbindelser, og resultaterne viste, at forbindelser 11 og 14 signifikant kunne h\u00e6mme frigivelsen af \u03b2-aminoglucosidase og forbedre degranulering af mastceller, hvilket indikerer, at forbindelser 11 og 14 har potentiel antiastmaaktivitet.<br \/>\nUd fra resultaterne af in vitro-aktivitetstest kan det ses, at typerne af aktive forbindelser ikke er koncentrerede, og m\u00e6ngden er relativt lille, hvilket g\u00f8r det vanskeligt at opsummere deres struktur-aktivitetsforhold. I fremtiden kan yderligere m\u00e5lrettet isolering af relaterede forbindelser og evaluering af deres aktiviteter overvejes for at opsummere deres struktur-aktivitetsforhold for yderligere at berige det farmakologiske stofgrundlag for Ephedra sinica og l\u00e6gge et fundament for udnyttelsen og udviklingen af Ephedra sinica-ressourcer.<\/p>","protected":false},"excerpt":{"rendered":"<p>Research on the Chemical Components of Ephedra sinica Ephedra intermedia Schrenk et C.A. Mey. is one of the three medicinal ephedra included in the 2020 edition of the Chinese Pharmacopoeia. It was first listed in the Shennong Bencao Jing and is classified as a medium grade. It has a pungent and slightly bitter taste, 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>Research on the Chemical Components of Ephedra sinica - 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\/chinese-ephedra\/\" \/>\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 of Ephedra sinica - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research on the Chemical Components of Ephedra sinica Ephedra intermedia Schrenk et C.A. Mey. is one of the three medicinal ephedra included in the 2020 edition of the Chinese Pharmacopoeia. It was first listed in the Shennong Bencao Jing and is classified as a medium grade. 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Mey. is one of the three medicinal ephedra included in the 2020 edition of the Chinese Pharmacopoeia. It was first listed in the Shennong Bencao Jing and is classified as a medium grade. 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