{"id":8737,"date":"2024-08-14T19:43:48","date_gmt":"2024-08-14T19:43:48","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8737"},"modified":"2024-08-14T19:43:48","modified_gmt":"2024-08-14T19:43:48","slug":"sargentol-in-red-vine-on-pc12-cells","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/sargentol-i-rodvin-pa-pc12-celler\/","title":{"rendered":"Den neurobeskyttende effekt og molekyl\u00e6r docking-unders\u00f8gelse af sargentol i r\u00f8dvin p\u00e5 PC12-celler"},"content":{"rendered":"<p>Den neurobeskyttende effekt og molekyl\u00e6r docking-unders\u00f8gelse af sargentol i r\u00f8dvin p\u00e5 PC12-celler<br \/>\nSkader p\u00e5 og d\u00f8d af neuroner involverer en lang r\u00e6kke processer, prim\u00e6rt oxidativ stress, neuroinflammation, excitotoksicitet, overbelastning af calciumioner (Ca2+), mitokondriel skade, apoptotiske proteiner, autofagi osv. Neurobeskyttelse er et vigtigt led i forebyggelsen og behandlingen af neurologiske sygdomme. Naturprodukter som curcumin, resveratrol og ginsenosider har vist gode neurobeskyttende effekter ved at regulere ROS, antiinflammatoriske effekter og h\u00e6mme excitotoksicitet. De har lovende anvendelser i bek\u00e6mpelsen af isk\u00e6misk hjerneskade og forbedring af indl\u00e6ring og kognitive evner.<br \/>\nSargentodoxa cuneta (Oliv.) Rehd Et Wils. er en plante, der er unik for Kina, og som virker afgiftende, fordriver karbunkler, fremmer blodcirkulationen, lindrer smerter og fordriver vind og fugt. De kemiske komponenter i r\u00f8dvin omfatter hovedsageligt fenolsyrer, phenylpropanoider, lignaner osv. Dens ekstrakter har farmakologiske aktiviteter s\u00e5som antiinflammatoriske, antioxidante og neurobeskyttende virkninger. I den indledende forskning isolerede vores laboratorium phenylpropanoidglykosidforbindelsen sargentol (190 mg isoleret fra 6 kg plantest\u00e6ngler) fra vilde r\u00f8de vinstokke, men der er kun f\u00e5 rapporter om den farmakologiske aktivitet af denne forbindelse. Denne artikel har til form\u00e5l at evaluere den beskyttende effekt af sargentol p\u00e5 PC12-celleskademodellen og diskutere dens mulige virkningsmekanisme baseret p\u00e5 molekyl\u00e6r docking-teknologi for at give et videnskabeligt grundlag for opdagelsen af neurobeskyttende aktive ingredienser fra traditionelle kinesiske medicinkilder.<\/p>\n<p>Skader p\u00e5 PC12-celler fremkaldt af fisetin bruges ofte til at etablere en cellemodel for Parkinsons sygdom, mens skader p\u00e5 PC12-celler fremkaldt af NaN3 ofte bruges til indledende screening af stoffer mod Alzheimers sygdom. I denne unders\u00f8gelse viste sargentol ingen signifikant h\u00e6mning af PC12-celleskade induceret af fisetin og NaN3 (P&gt;0,05), men var mest f\u00f8lsom over for H2O2-skademodellen og havde en signifikant h\u00e6mmende effekt p\u00e5 intracellul\u00e6r ROS induceret af H2O2 i PC12-celler.<br \/>\nFor yderligere at unders\u00f8ge den neurobeskyttende mekanisme for sargentol blev AutoDock Vina-software brugt til virtuelt at screene dets bindende m\u00e5lproteiner i denne unders\u00f8gelse. I betragtning af at ROS-effekt er en almindelig \u00e5rsag til celleskader eller apoptose i den H2O2-beskadigede cellemodel, valgte vi 14 proteiner, hovedsageligt ROS-effekt og inflammationsrelaterede proteiner, til molekyl\u00e6r docking.<br \/>\nBaseret p\u00e5 bindingsenergien og forholdet R blev potentielle m\u00e5l for sargentol identificeret, herunder TLR2 (5D3I), iNOS (2Y37), PI3K (1E7V), Keap1 (4L7B) og IKK \u03b2 (3RZF). Keap1-Nrf2-ARE-signalvejen er en af de vigtigste mekanismer til celleforsvar mod ROS-skader. Bindingsenergien mellem Keap1 (4L7B) og sargentol er -7,2 kcal\/mol, hvilket indikerer, at sargentol kan have en st\u00e6rk aktiveringsevne over for proteinet Keap1 og potentielle anti-ROS-effekter baseret p\u00e5 Keap1-Nrf2-ARE-signalvejen. Denne spekulation er i overensstemmelse med dataene under eksperiment 2.2. TLR2 (5D3I), iNOS (2Y37) og PI3K (1E7V) er vigtige reguleringsproteiner for ROS og inflammation. I denne molekyl\u00e6re docking var deres bindingsenergi til sargentol henholdsvis -7,7, -7,7 og -7,3 kcal\/mol. Is\u00e6r for f\u00f8rstn\u00e6vnte var bindingsstyrken h\u00f8jere end for den oprindelige ligand (-7,5 kcal\/mol). Det tyder p\u00e5, at sargentol kan ud\u00f8ve neurobeskyttende virkninger ved at h\u00e6mme den oxidative stressinflammations oxidative stresscyklus. I tidligere unders\u00f8gelser blev det konstateret, at sargentol signifikant kan h\u00e6mme \u00f8reh\u00e6velse hos mus, og dens antiinflammatoriske aktivitet er i overensstemmelse med den molekyl\u00e6re dockingforudsigelse i denne unders\u00f8gelse. If\u00f8lge bindingsenergien har sargentol en svag evne til at h\u00e6mme excitotoksicitet og regulere apoptosegener. Fremtidig forskning vil fokusere p\u00e5 sargentols antiinflammatoriske aktivitet og mekanisme.<\/p>","protected":false},"excerpt":{"rendered":"<p>The neuroprotective effect and molecular docking study of sargentol in red vine on PC12 cells The damage and death of neurons involve a wide range of processes, mainly including oxidative stress, neuroinflammation, excitotoxicity, calcium ion (Ca2+) overload, mitochondrial damage, apoptotic proteins, autophagy, etc. Neuroprotection is a key link in the prevention and treatment of neurological [&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>The neuroprotective effect and molecular docking study of sargentol in red vine on PC12 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\/da\/sargentol-i-rodvin-pa-pc12-celler\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The neuroprotective effect and molecular docking study of sargentol in red vine on PC12 cells - 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