{"id":4196,"date":"2024-08-04T08:51:10","date_gmt":"2024-08-04T08:51:10","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=4196"},"modified":"2024-08-04T08:51:10","modified_gmt":"2024-08-04T08:51:10","slug":"dihydromyricetin","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/dihydromyricetin\/","title":{"rendered":"A dihidromiricetin szerkezeti m\u00f3dos\u00edt\u00e1s\u00e1val \u00e9s biol\u00f3giai aktivit\u00e1s\u00e1val kapcsolatos kutat\u00e1si eredm\u00e9nyek"},"content":{"rendered":"

A dihidromiricetin szerkezeti m\u00f3dos\u00edt\u00e1s\u00e1val \u00e9s biol\u00f3giai aktivit\u00e1s\u00e1val kapcsolatos kutat\u00e1si eredm\u00e9nyek
\nA dihidromiricetin (DHM, l\u00e1sd az 1. \u00e1br\u00e1t) az Ampelopsis Grossedentata W. T. Wang f\u0151 flavonoidkomponense, amely a zsenge hajt\u00e1s sz\u00e1raz t\u00f6meg\u00e9nek mintegy 30%-j\u00e9t teszi ki. Antioxid\u00e1ns, gyullad\u00e1scs\u00f6kkent\u0151, v\u00edrusellenes, r\u00e1kellenes, antibakteri\u00e1lis, f\u00e1radts\u00e1g elleni, szorong\u00e1s elleni, hipoglik\u00e9mi\u00e1s, m\u00e1jv\u00e9d\u0151, sz\u00edvv\u00e9d\u0151, Alzheimer-k\u00f3rt enyh\u00edt\u0151 \u00e9s asztm\u00e1t enyh\u00edt\u0151 hat\u00e1s\u00fa.
\nA DHM biztons\u00e1goss\u00e1ga j\u00f3, \u00e9s patk\u00e1nyokon \u00e9s egereken akut or\u00e1lis toxicit\u00e1si teszteket, hossz\u00fa t\u00e1v\u00fa toxicit\u00e1si teszteket \u00e9s genotoxicit\u00e1si teszteket v\u00e9geztek, amelyek mind negat\u00edvak voltak. A DHM stabilit\u00e1sa l\u00e9nyegesen gyeng\u00e9bb, mint m\u00e1s flavonoidok\u00e9, mivel 6 hidroxilcsoportja van, k\u00fcl\u00f6n\u00f6sen a B gy\u0171r\u0171 hidroxilcsoportja, amely k\u00f6nnyen oxid\u00e1l\u00f3dik. A PH \u2265 9, a magas h\u0151m\u00e9rs\u00e9klet \u00e9s a f\u00e9nyexpoz\u00edci\u00f3 felgyors\u00edthatja a DHM oxid\u00e1ci\u00f3j\u00e1t, ami nagym\u00e9rt\u00e9kben korl\u00e1tozza az alkalmaz\u00e1s\u00e1t. A DHM v\u00edzben val\u00f3 oldhat\u00f3s\u00e1ga 25 \u2103-on 263,54 mg\/l, \u00e9s a meleg\u00edt\u00e9s jav\u00edthatja a v\u00edzold\u00e9konys\u00e1g\u00e1t. Szimul\u00e1lt em\u00e9szt\u0151rendszerben a DHM 6,8-as pH-n\u00e1l pszeudo els\u0151rend\u0171 kinetikus boml\u00e1st mutat nem flavonoid vegy\u00fcletekk\u00e9. Ezenk\u00edv\u00fcl a pH-t tekintik a DHM gyomor-b\u00e9l traktusban val\u00f3 gyenge stabilit\u00e1s\u00e1nak alapvet\u0151 ok\u00e1nak, ami rossz biol\u00f3giai hozz\u00e1f\u00e9rhet\u0151s\u00e9g\u00e9hez vezet. A tumorellenes, antibakteri\u00e1lis, v\u00edrusellenes, gyullad\u00e1scs\u00f6kkent\u0151, antioxid\u00e1ns \u00e9s neuroprotekt\u00edv hat\u00e1sainak fokoz\u00e1sa \u00e9rdek\u00e9ben a kutat\u00f3k kiterjedt k\u00eds\u00e9rleti vizsg\u00e1latokat v\u00e9geztek a DHM-en, \u00e9s bizonyos kutat\u00e1si eredm\u00e9nyeket \u00e9rtek el. Ez a cikk \u00e1ttekint\u00e9st ny\u00fajt a szerkezeti m\u00f3dos\u00edt\u00e1s \u00e9s a biol\u00f3giai aktivit\u00e1s szempontj\u00e1b\u00f3l, \u00e9s r\u00e1mutat a dihidromiricetin szerkezeti m\u00f3dos\u00edt\u00e1si folyamat\u00e1nak probl\u00e9m\u00e1ira \u00e9s fejleszt\u00e9si ir\u00e1nyaira, technikai szolg\u00e1ltat\u00e1sokat ny\u00fajtva a dihidromiricetin-sz\u00e1rmaz\u00e9kok jobb fejleszt\u00e9s\u00e9hez.<\/p>\n

\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"<\/p>\n

A term\u00e9szetes term\u00e9kek sikeres szerkezeti m\u00f3dos\u00edt\u00e1s\u00e1t a szintetikus megval\u00f3s\u00edthat\u00f3s\u00e1g, a biol\u00f3giai aktivit\u00e1s, valamint a fizikai \u00e9s k\u00e9miai tulajdons\u00e1gok szempontj\u00e1b\u00f3l kell \u00e9rt\u00e9kelni. P\u00e9ld\u00e1ul egy metilcsoport bevezet\u00e9se a DHM szerkezet\u00e9be jelent\u0151sen g\u00e1tolhatja a COVID-19-et. A j\u00f6v\u0151beli szerkezeti m\u00f3dos\u00edt\u00e1si folyamat sor\u00e1n a m\u00f3dos\u00edt\u00e1si helyek a k\u00f6vetkez\u0151kre \u00f6sszpontos\u00edthatnak: \u2460 m\u00f3dos\u00edt\u00e1s a dihidromiricetin A gy\u0171r\u0171j\u00e9n, Friedel Crafts vagy Mannich reakci\u00f3k alkalmaz\u00e1s\u00e1val k\u00fcl\u00f6nb\u00f6z\u0151 csoportok bevezet\u00e9se a C-6 vagy 8 poz\u00edci\u00f3kban, majd a megl\u00e9v\u0151 gy\u00f3gyszerekkel val\u00f3 \u00f6sszeilleszt\u00e9s ikergy\u00f3gyszerek kialak\u00edt\u00e1s\u00e1ra; \u2461 Klasszikus m\u00f3dos\u00edt\u00e1si m\u00f3dszereket lehet haszn\u00e1lni a k\u00fcl\u00f6nb\u00f6z\u0151 hidroxilcsoportokon v\u00e9gzett \u00e9teres\u00edt\u00e9si vagy \u00e9szteres\u00edt\u00e9si reakci\u00f3k elv\u00e9gz\u00e9s\u00e9re, de k\u00fcl\u00f6n\u00f6s figyelmet kell ford\u00edtani a m\u00f3dos\u00edtott term\u00e9kek konform\u00e1ci\u00f3s v\u00e1ltoz\u00e1saira Lehet\u0151s\u00e9g van arra is, hogy csak a DHM 5-OH-n\u00e1l v\u00e9gezzenek fel nem kutatott m\u00f3dos\u00edt\u00e1sokat, mik\u00f6zben m\u00e1s hidroxilcsoportokat megtartanak, \u00faj biol\u00f3giai aktivit\u00e1sok felfedez\u00e9se \u00e9rdek\u00e9ben. A DHM szerkezeti m\u00f3dos\u00edt\u00e1s\u00e1nak neh\u00e9zs\u00e9gei: \u2460 A v\u00e9d\u0151- \u00e9s lev\u00e9d\u0151 reakci\u00f3kban gyakran neh\u00e9z el\u00e9rni a meghat\u00e1rozott hidroxilv\u00e9delmet vagy v\u00e9d\u0151v\u00e9delmet; \u2461 A reakci\u00f3 \u00e9s az elv\u00e1laszt\u00f3 tiszt\u00edt\u00e1si folyamat sor\u00e1n a DHM hajlamos a miricetinn\u00e9 oxid\u00e1l\u00f3dni vagy kalkonokk\u00e1 alakulni, ami \u00f6sszetett \u00e9s nehezen elv\u00e1laszthat\u00f3 term\u00e9keket eredm\u00e9nyez. A DHM v\u00e1ltozatos farmakol\u00f3giai tev\u00e9kenys\u00e9gei sz\u00e1mos kutat\u00f3t vonzottak a farmakol\u00f3giai aktivit\u00e1suk fokoz\u00e1s\u00e1ra \u00e9s potenci\u00e1lis farmakol\u00f3giai csoportjaik k\u00e9miai m\u00f3dos\u00edt\u00e1sok r\u00e9v\u00e9n t\u00f6rt\u00e9n\u0151 meg\u00e9rt\u00e9s\u00e9re. A DHM-sz\u00e1rmaz\u00e9kok k\u00e9ts\u00e9gtelen\u00fcl \u00faj rem\u00e9nyt adnak az \u00faj gy\u00f3gyszerek kifejleszt\u00e9s\u00e9hez.<\/p>","protected":false},"excerpt":{"rendered":"

Research progress on structural modification and biological activity of dihydromyricetin Dihydromyricetin (DHM, see Figure 1) is the main flavonoid component in Ampelopsis Grossedentata W. T. Wang, accounting for about 30% of its tender shoot dry weight. It has antioxidant, anti-inflammatory, antiviral, anticancer, antibacterial, anti fatigue, anti anxiety, hypoglycemic, hepatoprotective, cardioprotective, Alzheimer’s disease relieving, and asthma […]<\/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":"\nResearch progress on structural modification and biological activity of dihydromyricetin - 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\/dihydromyricetin\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research progress on structural modification and biological activity of dihydromyricetin - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Research progress on structural modification and biological activity of dihydromyricetin Dihydromyricetin (DHM, see Figure 1) is the main flavonoid component in Ampelopsis Grossedentata W. 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