{"id":8747,"date":"2024-08-14T19:47:46","date_gmt":"2024-08-14T19:47:46","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8747"},"modified":"2024-08-14T19:47:46","modified_gmt":"2024-08-14T19:47:46","slug":"oleuropein-on-tyrosinase","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/tr\/tirozinaz-uzerinde-oleuropein\/","title":{"rendered":"Oleuropeinin tirozinaz \u00fczerindeki inhibit\u00f6r etkisi \u00fczerine \u00e7al\u0131\u015fma"},"content":{"rendered":"<p>Oleuropeinin tirozinaz \u00fczerindeki inhibit\u00f6r etkisi \u00fczerine \u00e7al\u0131\u015fma<br \/>\nTirozinaz (EC. 1.14.18.1) mikroorganizmalarda, hayvanlarda, bitkilerde ve insanlarda yayg\u0131n olarak bulunur ve melanin sentezi s\u00fcrecinde yer alan \u00f6nemli bir h\u0131z s\u0131n\u0131rlay\u0131c\u0131 enzimdir. \u0130fade d\u00fczeyi ve aktivitesi melanin sentezinin h\u0131z\u0131n\u0131 ve verimini belirler. Tirozinaz aktivitesinin inhibe edilmesi, ciltteki pigment h\u00fccrelerinin tirozinaz metabolizmas\u0131n\u0131 iyile\u015ftirebilir, pigmentasyon olu\u015fumunu \u00f6nleyebilir ve \u00e7il, melazma, ya\u015fl\u0131l\u0131k lekeleri ve beyazla\u015fma olu\u015fumunun \u00f6nlenmesinde rol oynayabilir. Quercetin ve hidrokinon gibi yayg\u0131n olarak kullan\u0131lan tirozinaz inhibit\u00f6rleri iyi inhibit\u00f6r yeteneklere sahiptir, ancak dermatit, cilt alerjileri ve hatta cilt kanseri gibi yan etkilere neden olabilir. Bu nedenle, g\u00fcvenli, etkili ve toksik olmayan tirozinaz inhibit\u00f6rleri aray\u0131\u015f\u0131 \u015fu anda s\u0131cak bir ara\u015ft\u0131rma konusudur. \u015eu anda, ara\u015ft\u0131rmalar fenollerin, flavonoidlerin ve t\u00fcrevlerinin, polisakkaritlerin, u\u00e7ucu ya\u011flar\u0131n, organik asitlerin, kumarinlerin ve bir\u00e7ok bitki \u00f6z\u00fcndeki di\u011fer bile\u015fiklerin iyi tirozinaz inhibit\u00f6r\u00fc kaynaklar\u0131 oldu\u011funu g\u00f6stermi\u015ftir.<br \/>\nOleuropein, hidroksitirosol ve zeytin iskeletinden olu\u015fan, zeytin a\u011fac\u0131 boyunca da\u011f\u0131lm\u0131\u015f, en y\u00fcksek i\u00e7eri\u011fi zeytin yapraklar\u0131nda ve ard\u0131ndan zeytin meyvesinde bulunan bir iridoid glikozit bile\u015fi\u011fidir. Son y\u0131llarda, yerli ve yabanc\u0131 akademisyenler taraf\u0131ndan oleuropein \u00fczerine yap\u0131lan ara\u015ft\u0131rmalar\u0131n s\u00fcrekli derinle\u015fmesiyle, antiviral, anti-t\u00fcm\u00f6r, antibakteriyel, antioksidan, hipoglisemik, hipotansif, anti Alzheimer hastal\u0131\u011f\u0131, cilt yaras\u0131 korumas\u0131 vb. gibi \u00e7e\u015fitli biyolojik aktivitelere sahip oldu\u011fu bulunmu\u015ftur. Bununla birlikte, oleuropeinin tirozinaz aktivitesi \u00fczerindeki etkisi hakk\u0131nda \u00e7ok az rapor bulunmaktad\u0131r. Bu makale, tirozinaz aktivitesi ve etki mekanizmas\u0131 \u00fczerindeki etkisini inceleyerek oleuropeinin beyazlat\u0131c\u0131 bir bile\u015fen olarak geli\u015ftirilmesi ve kullan\u0131lmas\u0131 i\u00e7in teorik temel sa\u011flamay\u0131 ama\u00e7lamaktad\u0131r.<\/p>\n<p>Enzimatik reaksiyonlarda, enzimatik reaksiyon h\u0131z\u0131, birim zamanda \u00fcr\u00fcn art\u0131\u015f\u0131n\u0131n \u00f6l\u00e7\u00fclmesiyle ifade edilir. Ba\u015flang\u0131\u00e7 h\u0131z\u0131, enzimatik reaksiyonun ba\u015flang\u0131c\u0131nda, e\u011fimin neredeyse de\u011fi\u015fmeden kald\u0131\u011f\u0131 belirli bir s\u00fcre i\u00e7indeki h\u0131z\u0131 ifade eder. Belirli bir substrat konsantrasyonunda, \u00fcr\u00fcn zaman ili\u015fkisi e\u011frisinin s\u0131f\u0131r ge\u00e7i\u015f te\u011fetinin e\u011fiminden elde edilir. Enzimatik reaksiyonun ba\u015flang\u0131\u00e7 h\u0131z\u0131n\u0131 \u00f6l\u00e7me y\u00f6ntemi genellikle daha az m\u00fcdahale fakt\u00f6r\u00fc ile enzim aktivitesini belirlemek i\u00e7in kullan\u0131l\u0131r. Bu deneyde, A475nm Zaman e\u011frisi 0 ila 5,3 dakikal\u0131k reaksiyon aras\u0131nda yakla\u015f\u0131k do\u011frusal bir ili\u015fki g\u00f6stermi\u015ftir. Zaman artt\u0131k\u00e7a e\u011fri kademeli olarak d\u00fczle\u015fti, e\u011fim azald\u0131 ve reaksiyon h\u0131z\u0131 da azald\u0131. Bu s\u0131rada, \u00f6l\u00e7\u00fclen enzim aktivitesi ger\u00e7ek enzim aktivitesini temsil edemedi\u011finden, reaksiyonun 5,3 dakikas\u0131ndaki reaksiyon h\u0131z\u0131 ba\u015flang\u0131\u00e7 h\u0131z\u0131 olarak al\u0131nm\u0131\u015ft\u0131r.<br \/>\nTirozinaz aktivitesini in vitro olarak inhibe etme deneyi, h\u00fccre deneyleri ve biyokimyasal deneyler olarak ikiye ayr\u0131l\u0131r. Chan ve arkada\u015flar\u0131, h\u00fccrelerin ger\u00e7ek fizyolojik ortamlar\u0131 sim\u00fcle edebilece\u011fine ve tirozinaz aktivitesini h\u00fccre deneyleri yoluyla \u00f6l\u00e7menin, tirozinaz aktivitesini do\u011frudan \u00f6l\u00e7mekten daha g\u00fcvenilir oldu\u011funa ve inhibit\u00f6r aktivitesini daha iyi yans\u0131tabilece\u011fine inanmaktad\u0131r. Bu \u00e7al\u0131\u015fmada, oleuropeinin B16 h\u00fccre tirozinaz\u0131 ve mantar tirozinaz\u0131 \u00fczerindeki inhibit\u00f6r aktivitesinde farkl\u0131l\u0131klar vard\u0131. H\u00fccresel d\u00fczeyde, oleuropein tirozinaz aktivitesini pozitif kontrol kuersetinden daha iyi inhibe etmi\u015ftir. Bu, Li ve arkada\u015flar\u0131n\u0131n ara\u015ft\u0131rma sonu\u00e7lar\u0131yla tutarl\u0131d\u0131r.<br \/>\n\u0130nsan cildi ultraviyole radyasyona maruz kald\u0131\u011f\u0131nda, cildin ya\u015flanmas\u0131n\u0131, pigmentasyonunu ve k\u0131r\u0131\u015f\u0131kl\u0131klar\u0131n derinle\u015fmesini h\u0131zland\u0131ran b\u00fcy\u00fck miktarda reaktif oksijen t\u00fcrleri (ROS) ve serbest radikaller \u00fcretir. Ara\u015ft\u0131rmalar, y\u00fcksek ROS'un epidermiste alfa melanosit uyar\u0131c\u0131 hormonu harekete ge\u00e7irerek tirozinaz\u0131 aktive etti\u011fini ve sonu\u00e7ta melanositleri melanin \u00fcretmeleri i\u00e7in uyard\u0131\u011f\u0131n\u0131 g\u00f6stermi\u015ftir. Antioksidanlar, reaktif oksijen t\u00fcrlerini ve serbest radikalleri temizleyerek, cildin durumunu iyile\u015ftirerek, pigmentleri kademeli olarak da\u011f\u0131tarak ve b\u00f6ylece beyazlat\u0131c\u0131 bir rol oynayarak v\u00fccudun normal metabolizmas\u0131n\u0131 destekler. Wang ve arkada\u015flar\u0131 glisirizik asit, resveratrol, oksitlenmi\u015f resveratrol ve fenetil resorsinol gibi antioksidanlar\u0131n, substrat olarak L-dopa kullan\u0131ld\u0131\u011f\u0131nda antioksidan aktivite ve tirozinaz inhibisyonu aras\u0131nda sinerjik bir etkiye sahip oldu\u011funu ve tirozinaz aktivitesini b\u00fcy\u00fck \u00f6l\u00e7\u00fcde inhibe etti\u011fini bulmu\u015ftur. Zeytin ac\u0131 glikozidi g\u00fc\u00e7l\u00fc antioksidan aktiviteye sahiptir. Tirozinaz aktivitesinin inhibisyonunun antioksidan aktivite ile ili\u015fkili olup olmad\u0131\u011f\u0131 ve zeytin ac\u0131 glikozidi ile antioksidanlar aras\u0131nda sinerjik bir etki olup olmad\u0131\u011f\u0131 daha fazla ara\u015ft\u0131rmay\u0131 hak etmektedir.<br \/>\nTirozinaz, melanin sentezinde anahtar bir enzimdir. Tirozinaz aktivitesini inhibe ederek, melanin \u00fcretimi bask\u0131lanabilir ve b\u00f6ylece beyazlatma etkisi elde edilebilir. Bu \u00e7al\u0131\u015fman\u0131n sonu\u00e7lar\u0131, oleuropeinin B16 h\u00fccrelerinde ve mantar tirozinaz\u0131nda tirozinaz \u00fczerinde \u00f6nemli bir inhibit\u00f6r etkiye sahip oldu\u011funu ve doza ba\u011fl\u0131 iyi bir ili\u015fki g\u00f6sterdi\u011fini g\u00f6stermektedir. Kinetik analiz yoluyla, oleuropeinin mantar tirozinaz\u0131 \u00fczerindeki inhibit\u00f6r etkisinin t\u00fcr\u00fc tersine \u00e7evrilebilir rekabet\u00e7i olmayan inhibisyondur, yani oleuropeinin tirozinaza ba\u011flanmas\u0131 substrat ba\u011flanma b\u00f6lgesinin d\u0131\u015f\u0131ndaki temel bir grup \u00fczerindedir. Oleuropein tirozinaz\u0131n substrata (L-dopa) afinitesini azaltmaz, bunun yerine enzimin katalitik etkisini bloke ederek enzim aktivitesini inhibe eder ve Vm'yi azalt\u0131r. Zeytin ac\u0131 glikozidi geni\u015f bir kaynak yelpazesine, y\u00fcksek g\u00fcvenli\u011fe ve iyi antioksidan aktiviteye sahiptir. Beyazlat\u0131c\u0131 \u00fcr\u00fcnler i\u00e7in potansiyel bir hammadde olarak, geni\u015f uygulama olanaklar\u0131na sahiptir.<\/p>","protected":false},"excerpt":{"rendered":"<p>Oleuropeinin tirozinaz \u00fczerindeki inhibit\u00f6r etkisi \u00fczerine \u00e7al\u0131\u015fma Tirozinaz (EC. 1.14.18.1) mikroorganizmalarda, hayvanlarda, bitkilerde ve insanlarda yayg\u0131n olarak bulunur ve melanin sentezi s\u00fcrecinde yer alan \u00f6nemli bir h\u0131z s\u0131n\u0131rlay\u0131c\u0131 enzimdir. Ekspresyon seviyesi ve aktivitesi melanin sentezinin h\u0131z\u0131n\u0131 ve verimini belirler. Tirozinaz aktivitesinin inhibe edilmesi [...] iyile\u015ftirebilir.<\/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 inhibitory effect of oleuropein on tyrosinase - 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\/tr\/tirozinaz-uzerinde-oleuropein\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the inhibitory effect of oleuropein on tyrosinase - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the inhibitory effect of oleuropein on tyrosinase Tyrosinase (EC. 1.14.18.1) is widely present in microorganisms, animals, plants, and humans, and is an important rate limiting enzyme involved in the process of melanin synthesis. 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