{"id":8721,"date":"2024-08-14T19:24:51","date_gmt":"2024-08-14T19:24:51","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8721"},"modified":"2024-08-14T19:24:51","modified_gmt":"2024-08-14T19:24:51","slug":"dandelion-root-polysaccharides","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/gyermeklancfu-gyoker-poliszacharidok\/","title":{"rendered":"A pitypanggy\u00f6k\u00e9r gy\u00f6k\u00e9r poliszacharidok szulfat\u00e1l\u00e1si folyamat\u00e1nak felt\u00e9teleinek optimaliz\u00e1l\u00e1sa \u00e9s v\u00e9d\u0151hat\u00e1suk a HepaRG sejtek oxidat\u00edv k\u00e1rosod\u00e1s\u00e1ra"},"content":{"rendered":"<p>A pitypanggy\u00f6k\u00e9r gy\u00f6k\u00e9r poliszacharidok szulfat\u00e1l\u00e1si folyamat\u00e1nak felt\u00e9teleinek optimaliz\u00e1l\u00e1sa \u00e9s v\u00e9d\u0151hat\u00e1suk a HepaRG sejtek oxidat\u00edv k\u00e1rosod\u00e1s\u00e1ra<br \/>\nA poliszacharidok aktivit\u00e1sa \u00e1ltal\u00e1ban a cukoregys\u00e9gek \u00f6sszet\u00e9tel\u00e9vel, a molekulat\u00f6meggel, a glikozidos k\u00f6t\u00e9sek t\u00edpus\u00e1val, a f\u0151l\u00e1nc konfigur\u00e1ci\u00f3j\u00e1val, az el\u00e1gaz\u00f3 l\u00e1ncokkal \u00e9s a t\u00e9rbeli konfigur\u00e1ci\u00f3val f\u00fcgg \u00f6ssze. Az eredeti poliszacharidokhoz k\u00e9pest a szerkezetileg m\u00f3dos\u00edtott poliszacharidok v\u00edzold\u00e9konys\u00e1ga jelent\u0151sen javul, ami el\u0151ny\u00f6s a poliszacharidok aktivit\u00e1s\u00e1nak fokoz\u00e1sa szempontj\u00e1b\u00f3l, \u00e9s egyesek ak\u00e1r \u00faj biol\u00f3giai aktivit\u00e1sokat is l\u00e9trehozhatnak. A foszforil\u00e1l\u00e1s, szulfat\u00e1l\u00e1s, karboximetil\u00e1l\u00e1s \u00e9s acetil\u00e1l\u00e1s a poliszacharidok k\u00e9miai m\u00f3dos\u00edt\u00e1s\u00e1nak \u00e1ltal\u00e1nosan haszn\u00e1lt m\u00f3dszerei. K\u00f6z\u00fcl\u00fck a szulfat\u00e1lt poliszacharidok egyre nagyobb figyelmet kapnak a kutat\u00f3k r\u00e9sz\u00e9r\u0151l kiv\u00e1l\u00f3 biol\u00f3giai aktivit\u00e1suk miatt, mint p\u00e9ld\u00e1ul v\u00e9ralvad\u00e1sg\u00e1tl\u00f3, gyullad\u00e1scs\u00f6kkent\u0151, antioxid\u00e1ns, daganatellenes \u00e9s immuner\u0151s\u00edt\u0151 hat\u00e1suk. A poliszacharidok szulf\u00e1tos\u00edt\u00e1sa olyan reakci\u00f3ra utal, amelynek sor\u00e1n a poliszacharid molekulal\u00e1nc hidroxilcsoportjait szulf\u00e1tcsoportokra cser\u00e9lik, \u00e9s a keletkez\u0151 term\u00e9ket poliszacharid-szulf\u00e1tnak is nevezik. A poliszacharidok szulfat\u00e1l\u00e1s\u00e1ra \u00e1ltal\u00e1nosan haszn\u00e1lt m\u00f3dszerek k\u00f6z\u00e9 tartozik a kl\u00f3rszulfonsav-piridin m\u00f3dszer, a t\u00f6m\u00e9ny k\u00e9nsav m\u00f3dszer, a Nagasawa m\u00f3dszer stb. A kl\u00f3rszulfonsav-piridin m\u00f3dszer el\u0151nye a gazdas\u00e1gos reakci\u00f3reagensek, az egyszer\u0171 reakci\u00f3k\u00f6r\u00fclm\u00e9nyek \u00e9s a magas term\u00e9kvisszanyer\u00e9si ar\u00e1ny, ez\u00e9rt gyakran haszn\u00e1lj\u00e1k a poliszacharid-szulf\u00e1toz\u00e1s m\u00f3dszerek\u00e9nt.<br \/>\nA gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r az Asteraceae n\u00f6v\u00e9ny, a gyermekl\u00e1ncf\u0171 sz\u00e1r\u00edtott gy\u00f6kere, amely k\u00fcl\u00f6nb\u00f6z\u0151 farmakol\u00f3giai tev\u00e9kenys\u00e9gekkel rendelkezik, p\u00e9ld\u00e1ul antioxid\u00e1ns, lipidcs\u00f6kkent\u0151 \u00e9s m\u00e1jv\u00e9d\u0151 hat\u00e1s\u00fa. Ma Hongmei \u00e9s munkat\u00e1rsai kutat\u00e1sai szerint a pitypanggy\u00f6k\u00e9rben a poliszacharidok a legnagyobb mennyis\u00e9gben el\u0151fordul\u00f3 akt\u00edv \u00f6sszetev\u0151, ak\u00e1r 42,75% tartalommal. Kutat\u00f3csoportunk meg\u00e1llap\u00edtotta, hogy a pitypanggy\u00f6k\u00e9r poliszacharidok j\u00f3 in vitro antioxid\u00e1ns aktivit\u00e1ssal rendelkeznek, ami a DPPH gy\u00f6k\u00f6k, hidroxilgy\u00f6k\u00f6k \u00e9s szuperoxid-anion gy\u00f6k\u00f6k elnyel\u00e9s\u00e9re val\u00f3 k\u00e9pess\u00e9g\u00fckben t\u00fckr\u00f6z\u0151dik, \u00e9s bizonyos d\u00f3zis-hat\u00e1s \u00f6sszef\u00fcgg\u00e9st mutat. Kutat\u00e1saink sor\u00e1n azonban azt tapasztaltuk, hogy a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok v\u00edzold\u00e9konys\u00e1ga nem t\u00fal j\u00f3, ami korl\u00e1tozza a jobb farmakol\u00f3giai hat\u00e1sok kifejt\u00e9s\u00e9nek k\u00e9pess\u00e9g\u00e9t. A szakirodalom arr\u00f3l sz\u00e1mol be, hogy a poliszacharidok szulfat\u00e1l\u00e1sa jav\u00edthatja v\u00edzoldhat\u00f3s\u00e1gukat \u00e9s fokozhatja biol\u00f3giai aktivit\u00e1sukat. Ez\u00e9rt a szerz\u0151 a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok szulf\u00e1tos m\u00f3dos\u00edt\u00e1s\u00e1t vizsg\u00e1lja. A H2O2 egy gyakori reakt\u00edv oxig\u00e9nfajok molekul\u00e1ja, amely a feh\u00e9rj\u00e9k \u00e9s lipidek, k\u00fcl\u00f6n\u00f6sen a genomban \u00e9s a mitokondriumokban l\u00e9v\u0151 DNS megzavar\u00e1s\u00e1val sejt apopt\u00f3zist vagy nekr\u00f3zist id\u00e9zhet el\u0151. Mivel k\u00e9pes hat\u00e9konyan n\u00f6velni az intracellul\u00e1ris oxidat\u00edv stressz szintj\u00e9t \u00e9s szimul\u00e1lni az oxig\u00e9n szabad gy\u00f6k\u00f6k \u00e1ltal in vivo okozott k\u00e1rosod\u00e1st, a H2O2-t gyakran haszn\u00e1lj\u00e1k modellanyagk\u00e9nt az in vitro sejtek oxidat\u00edv stressz okozta k\u00e1rosod\u00e1s\u00e1nak meg\u00e1llap\u00edt\u00e1s\u00e1hoz. Ez\u00e9rt ez a tanulm\u00e1ny a H2O2-t k\u00edv\u00e1nja haszn\u00e1lni a sejtek oxidat\u00edv stressz okozta k\u00e1rosod\u00e1s modellj\u00e9nek l\u00e9trehoz\u00e1s\u00e1ra, \u00e9s a szulf\u00e1tos pitypanggy\u00f6k\u00e9r poliszacharidok v\u00e9d\u0151 hat\u00e1s\u00e1t k\u00edv\u00e1nja vizsg\u00e1lni a H2O2 \u00e1ltal kiv\u00e1ltott sejtk\u00e1rosod\u00e1sra.<br \/>\n\u00d6sszefoglalva, ez a tanulm\u00e1ny a kl\u00f3rszulfonsav-piridin m\u00f3dszert alkalmazta a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok k\u00e9nsavval t\u00f6rt\u00e9n\u0151 m\u00f3dos\u00edt\u00e1s\u00e1ra. A szubsztit\u00faci\u00f3 m\u00e9rt\u00e9k\u00e9t indik\u00e1tork\u00e9nt haszn\u00e1ltuk a k\u00e9nsavas \u00e9szteres\u00edt\u00e9si folyamat optimaliz\u00e1l\u00e1s\u00e1hoz a v\u00e1laszfel\u00fcleti m\u00f3dszertan seg\u00edts\u00e9g\u00e9vel. El\u0151zetesen megvizsg\u00e1ltuk a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok \u00e9s szulf\u00e1tjaik v\u00e9d\u0151 hat\u00e1s\u00e1t a H2O2 \u00e1ltal kiv\u00e1ltott oxidat\u00edv k\u00e1rosod\u00e1sra a HepaRG sejtekben, azzal a c\u00e9llal, hogy \u00e9rt\u00e9kes referenci\u00e1kat szolg\u00e1ltassunk a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok fejleszt\u00e9s\u00e9hez \u00e9s felhaszn\u00e1l\u00e1s\u00e1hoz.<\/p>\n<p>Ebben a k\u00eds\u00e9rletben a kl\u00f3rszulfonsav-piridin m\u00f3dszert alkalmazt\u00e1k a gyermekl\u00e1ncf\u0171gy\u00f6k\u00e9r poliszacharidok szulfat\u00e1l\u00e1ssal t\u00f6rt\u00e9n\u0151 m\u00f3dos\u00edt\u00e1s\u00e1ra, \u00e9s a szulfat\u00e1l\u00e1si folyamatot a v\u00e1laszfel\u00fcleti m\u00f3dszertan seg\u00edts\u00e9g\u00e9vel optimaliz\u00e1lt\u00e1k. A szulfat\u00e1l\u00e1si reakci\u00f3 optim\u00e1lis felt\u00e9telei a 83 \u2103 reakci\u00f3h\u0151m\u00e9rs\u00e9klet, a piridin \u00e9s a kl\u00f3rszulfonsav 8-as ar\u00e1nya \u00e9s a 3 \u00f3r\u00e1s reakci\u00f3id\u0151 voltak. Ilyen k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt a szulfat\u00e1lt pitypanggy\u00f6k\u00e9r poliszacharidok szubsztit\u00faci\u00f3s foka 1,13 volt. A k\u00e9nsavval m\u00f3dos\u00edtott pitypanggy\u00f6k\u00e9r poliszacharidok j\u00f3 v\u00e9d\u0151hat\u00e1st fejtenek ki a H2O2 \u00e1ltal induk\u00e1lt oxidat\u00edv k\u00e1rosod\u00e1ssal j\u00e1r\u00f3 sejtekre. Ez a tanulm\u00e1ny azt jelzi, hogy a szulfat\u00e1l\u00e1ssal t\u00f6rt\u00e9n\u0151 m\u00f3dos\u00edt\u00e1s seg\u00edt a pitypanggy\u00f6k\u00e9r poliszacharidok antioxid\u00e1ns kapacit\u00e1s\u00e1nak n\u00f6vel\u00e9s\u00e9ben, \u00faj \u00f6tleteket \u00e9s ir\u00e1nyokat adva a pitypanggy\u00f6k\u00e9r poliszacharidok tov\u00e1bbi fejleszt\u00e9s\u00e9hez \u00e9s felhaszn\u00e1l\u00e1s\u00e1hoz.<\/p>","protected":false},"excerpt":{"rendered":"<p>Optimization of sulfation process conditions for dandelion root polysaccharides and their protective effect on oxidative damage of HepaRG cells The activity of polysaccharides is usually related to the composition of sugar units, molecular weight, type of glycosidic bonds, main chain configuration, branch chains, and spatial configuration. Compared with the original polysaccharides, structurally modified polysaccharides have [&hellip;]<\/p>\n","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>Optimization of sulfation process conditions for dandelion root polysaccharides and their protective effect on oxidative damage of HepaRG cells - 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\/hu\/gyermeklancfu-gyoker-poliszacharidok\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Optimization of sulfation process conditions for dandelion root polysaccharides and their protective effect on oxidative damage of HepaRG cells - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Optimization of sulfation process conditions for dandelion root polysaccharides and their protective effect on oxidative damage of HepaRG cells The activity of polysaccharides is usually related to the composition of sugar units, molecular weight, type of glycosidic bonds, main chain configuration, branch chains, and spatial configuration. 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Compared with the original polysaccharides, structurally modified polysaccharides have [&hellip;]","og_url":"https:\/\/longchangextracts.com\/hu\/gyermeklancfu-gyoker-poliszacharidok\/","og_site_name":"China Chemical Manufacturer","article_published_time":"2024-08-14T19:24:51+00:00","author":"longcha9","twitter_card":"summary_large_image","twitter_misc":{"Szerz\u0151:":"longcha9","Becs\u00fclt olvas\u00e1si id\u0151":"3 perc"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/longchangextracts.com\/dandelion-root-polysaccharides\/","url":"https:\/\/longchangextracts.com\/dandelion-root-polysaccharides\/","name":"Optimaliz\u00e1l\u00e1sa szulfat\u00e1l\u00e1si folyamat felt\u00e9telei pitypang gy\u00f6k\u00e9r poliszacharidok \u00e9s v\u00e9d\u0151 hat\u00e1sa oxidat\u00edv k\u00e1rosod\u00e1s\u00e1t HepaRG sejtek - K\u00edna Chemical Manufacturer","isPartOf":{"@id":"https:\/\/longchangextracts.com\/#website"},"datePublished":"2024-08-14T19:24:51+00:00","dateModified":"2024-08-14T19:24:51+00:00","author":{"@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/80933ac6926ad63fea74ec33f8d04869"},"breadcrumb":{"@id":"https:\/\/longchangextracts.com\/dandelion-root-polysaccharides\/#breadcrumb"},"inLanguage":"hu","potentialAction":[{"@type":"ReadAction","target":["https:\/\/longchangextracts.com\/dandelion-root-polysaccharides\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/longchangextracts.com\/dandelion-root-polysaccharides\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/longchangextracts.com\/"},{"@type":"ListItem","position":2,"name":"Optimization of sulfation process conditions for dandelion root polysaccharides and their protective effect on oxidative damage of HepaRG cells"}]},{"@type":"WebSite","@id":"https:\/\/longchangextracts.com\/#website","url":"https:\/\/longchangextracts.com\/","name":"K\u00edna Vegyi Gy\u00e1rt\u00f3","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/longchangextracts.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"hu"},{"@type":"Person","@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/80933ac6926ad63fea74ec33f8d04869","name":"longcha9","image":{"@type":"ImageObject","inLanguage":"hu","@id":"https:\/\/longchangextracts.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c1e84ee0759373263198c58e8f338f80?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c1e84ee0759373263198c58e8f338f80?s=96&d=mm&r=g","caption":"longcha9"}}]}},"_links":{"self":[{"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/posts\/8721"}],"collection":[{"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/comments?post=8721"}],"version-history":[{"count":1,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/posts\/8721\/revisions"}],"predecessor-version":[{"id":8722,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/posts\/8721\/revisions\/8722"}],"wp:attachment":[{"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/media?parent=8721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/categories?post=8721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/longchangextracts.com\/hu\/wp-json\/wp\/v2\/tags?post=8721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}