{"id":8619,"date":"2024-08-14T17:02:12","date_gmt":"2024-08-14T17:02:12","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8619"},"modified":"2024-08-14T17:02:12","modified_gmt":"2024-08-14T17:02:12","slug":"meropenem-on-methicillin-resistant-staphylococcus-aureus","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/tr\/meti\u0307si\u0307li\u0307ne-di\u0307rencli\u0307-staphylococcus-aureus-uzeri\u0307nde-meropenem\/","title":{"rendered":"Meropenem ile kombine edilen laktobasilin metisiline diren\u00e7li Staphylococcus aureus \u00fczerindeki antibakteriyel etkisi \u00fczerine \u00f6n \u00e7al\u0131\u015fma"},"content":{"rendered":"<p>Meropenem ile kombine edilen laktobasilin metisiline diren\u00e7li Staphylococcus aureus \u00fczerindeki antibakteriyel etkisi \u00fczerine \u00f6n \u00e7al\u0131\u015fma<br \/>\nS\u0131radan Staphylococcus aureus ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, metisiline diren\u00e7li Staphylococcus aureus'un (MRSA) neden oldu\u011fu enfeksiyonlar daha uzun hastanede kal\u0131\u015f s\u00fcrelerine ve daha y\u00fcksek \u00f6l\u00fcm oranlar\u0131na sahiptir. 2020 CHINET \u00c7in Bakteriyel Diren\u00e7 S\u00fcrveyans\u0131, \u00c7in'in b\u00fcy\u00fck b\u00f6lgelerindeki t\u0131bbi kurumlardan klinik olarak izole edilen Staphylococcus aureus aras\u0131nda MRSA tespit oran\u0131n\u0131n 31,0% ile nispeten y\u00fcksek oldu\u011funu g\u00f6stermi\u015ftir. Vankomisin ve daptomisin klinik uygulamada MRSA enfeksiyonlar\u0131n\u0131n tedavisinde en s\u0131k kullan\u0131lan antibiyotiklerdir ve MRSA bakteriyemisi i\u00e7in monoterapi olarak onaylanm\u0131\u015ft\u0131r. Bu standarda g\u00f6re tedavinin etkinli\u011finin \u00e7ok s\u0131n\u0131rl\u0131 oldu\u011funu g\u00f6steren veriler mevcuttur. MRSA bakteriyemisi ve MRSA enfektif endokarditi gibi ciddi MRSA enfeksiyonlar\u0131 y\u00fcksek mortalite oran\u0131na sahiptir, \u00f6zellikle de mortalite oran\u0131 y\u0131ldan y\u0131la artan MRSA bakteriyemisi \u015fu anda 30%'ye ula\u015fm\u0131\u015ft\u0131r. Beta laktam antibiyotiklerle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, vankomisin nispeten daha yava\u015f bir bakterisidal orana, zay\u0131f doku ge\u00e7irgenli\u011fine ve potansiyel toksisiteye sahiptir. Daptomisin, tedavi ba\u015far\u0131s\u0131zl\u0131\u011f\u0131 ile ili\u015fkili olabilecek akut b\u00f6brek hasar\u0131 riskine sahiptir. Ayr\u0131ca son y\u0131llarda yatakta vankomisine diren\u00e7li Staphylococcus aureus ve daptomisine diren\u00e7li su\u015flar da bulunmu\u015ftur. Bu nedenle, MRSA enfeksiyonlar\u0131n\u0131n tedavisi i\u00e7in yeni ila\u00e7lar\u0131n ve stratejilerin ara\u015ft\u0131r\u0131lmas\u0131na ve geli\u015ftirilmesine acil ihtiya\u00e7 vard\u0131r.<\/p>\n<p>NIS, geni\u015f spektrumlu antibakteriyel aktiviteye sahip, bakterilerin ikincil metaboliti olan ribozomal sentetik bir peptittir. D\u00fcnya \u00e7ap\u0131nda g\u0131da koruyucusu olarak yayg\u0131n bir \u015fekilde kullan\u0131lmaktad\u0131r ve baz\u0131 antibiyotikler \u00fczerinde sinerjik bir etkiye sahip oldu\u011fu bildirilmi\u015ftir. MEM, \u03b2-laktam enzimlerine kar\u015f\u0131 stabilite ve daha az advers reaksiyon gibi avantajlara sahip yeni bir \u03b2-laktam antibiyotiktir, ancak Gram pozitif bakteriyel enfeksiyonlar\u0131n tedavisinde yayg\u0131n olarak kullan\u0131lmamaktad\u0131r. Bu \u00e7al\u0131\u015fma, NIS ile MEM'in MRSA \u00fczerindeki antibakteriyel etkisini ve potansiyel mekanizmas\u0131n\u0131 \u00f6nceden ara\u015ft\u0131rarak yeni antibakteriyel tedavi planlar\u0131n\u0131n geli\u015ftirilmesi i\u00e7in bir ara\u015ft\u0131rma temeli sa\u011flam\u0131\u015ft\u0131r.<\/p>\n<p>NIS, Lactococcus ve Streptococcus cinsleri taraf\u0131ndan \u00fcretilen bir bakteriyosindir. G\u0131da bozulmas\u0131na neden olan Gram pozitif bakterilerin \u00e7o\u011funu, \u00f6zellikle de spor \u00fcretenleri etkili bir \u015fekilde inhibe edebilen do\u011fal bir peptit bile\u015fi\u011fidir.<\/p>\n<p>NIS bakteri h\u00fccre membranlar\u0131nda ge\u00e7irgen g\u00f6zenekler olu\u015fturabilir ve bakteri h\u00fccre duvarlar\u0131n\u0131n sentezini engelleyebilir. MEM'in antibakteriyel mekanizmas\u0131 esas olarak h\u00fccre duvarlar\u0131n\u0131n sentezini inhibe etmek ve bakteriler taraf\u0131ndan \u00fcretilen \u03b2 - laktazlar taraf\u0131ndan hidrolize edilmemektir. Bu \u00e7al\u0131\u015fma, NIS'in MRSA izolatlar\u0131 ve Staphylococcus aureus standart su\u015fu ATCC25923 \u00fczerinde tek ba\u015f\u0131na hareket ederken antibakteriyel aktivite sergiledi\u011fini g\u00f6stermektedir ki bu da daha \u00f6nce bildirilen ara\u015ft\u0131rma sonu\u00e7lar\u0131yla tutarl\u0131d\u0131r. Ayr\u0131ca bu \u00e7al\u0131\u015fma, NIS ve MEM'in MRSA su\u015flar\u0131 \u00fczerindeki sinerjik inhibit\u00f6r etkisini de g\u00f6stermektedir ki bu da NIS'in h\u00fccre zar\u0131 ge\u00e7irgenli\u011fini art\u0131rma kabiliyetiyle ilgili olabilir.<\/p>\n<p>Anti enfeksiyon tedavisi s\u0131ras\u0131nda, lezyon b\u00f6lgesinin biyofilmindeki antibiyotik konsantrasyonu i\u00e7eri do\u011fru ilerledik\u00e7e azal\u0131r. Biyofilmin derinliklerinde bulunan bakterilerin, d\u00fc\u015f\u00fck konsantrasyonlardaki antibiyotiklerin uyar\u0131m\u0131 alt\u0131nda diren\u00e7 geli\u015ftirme olas\u0131l\u0131\u011f\u0131 daha y\u00fcksektir ve bu da diren\u00e7li su\u015flar\u0131n ortaya \u00e7\u0131kma olas\u0131l\u0131\u011f\u0131n\u0131 art\u0131rabilir. Ayn\u0131 zamanda, biyofilmin bakteri h\u00fccreleri \u00fczerindeki korumas\u0131 antibiyotiklerin girmesini zorla\u015ft\u0131r\u0131r ve d\u00fc\u015f\u00fck metabolik durumdaki bakteriler antibiyotiklere daha az duyarl\u0131d\u0131r. Klinik uygulamada kronik enfeksiyon lezyonlar\u0131n\u0131n temizlenmesinin zor olmas\u0131n\u0131n ve durumun tekrarlay\u0131c\u0131 ve inat\u00e7\u0131 olmas\u0131n\u0131n ana nedeni budur. Bu \u00e7al\u0131\u015fma, NIS'in tek ba\u015f\u0131na Staphylococcus aureus taraf\u0131ndan \u00fcretilen biyofilm miktar\u0131n\u0131 azaltabildi\u011fini, MEM ile NIS birle\u015ftirildi\u011finde ise \u00fcretilen biyofilm miktar\u0131n\u0131n tek ba\u015f\u0131na NIS'e k\u0131yasla \u00f6nemli \u00f6l\u00e7\u00fcde azalmad\u0131\u011f\u0131n\u0131 ortaya koymu\u015ftur. Bunun nedeni, biyofilm olu\u015fumunun bakterilerin rastgele birikmesi olmamas\u0131 ve planktonik durumdan biyofilm olu\u015fumuna kadar \u00e7e\u015fitli a\u015famalar\u0131n h\u00fccre d\u0131\u015f\u0131 matris bile\u015fenlerinden, \u00e7e\u015fitli karma\u015f\u0131k ve d\u00fczenli sinyal yollar\u0131ndan ve bulunduklar\u0131 ortamdan etkilenmesi olabilir. MRSA biyofilminin yok edilmesine esas olarak NIS neden olurken, MEM sinerjik bir etkiye sahip de\u011fildir.<\/p>\n<p>Bu \u00e7al\u0131\u015fma, model organizma olan balmumu g\u00fcvesi enfeksiyon modeli arac\u0131l\u0131\u011f\u0131yla, NIS ve MEM kombinasyonunun MRSA ile enfekte olmu\u015f balmumu g\u00fcvelerinin hayatta kalma oran\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilece\u011fini bulmu\u015ftur. Bu \u00f6n kan\u0131t, NIS ve MEM'in MRSA'n\u0131n in vivo toksisitesi \u00fczerinde \u00f6nemli bir inhibit\u00f6r etkiye sahip oldu\u011funu g\u00f6stermektedir. Yukar\u0131daki ara\u015ft\u0131rmaya g\u00f6re, ila\u00e7 kombinasyonu ile bakteriyel hayatta kalma oran\u0131n\u0131n azalt\u0131lmas\u0131 ile ilgili olabilir. \u00d6nceki \u00e7al\u0131\u015fmalar, NIS ve antibiyotik kombinasyonunun Staphylococcus aureus enterotoksini (SEC) \u00fcretimini \u00f6nemli \u00f6l\u00e7\u00fcde azaltabildi\u011fini ve bu \u00e7al\u0131\u015fmada balmumu g\u00fcvelerinin hayatta kalma oran\u0131ndaki art\u0131\u015f\u0131n da bununla ilgili olabilece\u011fini bulmu\u015ftur.<\/p>\n<p>Patolojik ve toksikolojik \u00e7al\u0131\u015fmalar NIS'in insan v\u00fccudu i\u00e7in g\u00fcvenli ve toksik olmad\u0131\u011f\u0131n\u0131, bu nedenle y\u00fcksek uygulama de\u011ferine sahip oldu\u011funu g\u00f6stermi\u015ftir. Bu \u00e7al\u0131\u015fma, MEM ile birlikte kullan\u0131m\u0131n\u0131n MRSA \u00fczerinde sinerjik bir inhibit\u00f6r etkiye sahip oldu\u011funu ortaya koymu\u015ftur ve klinik uygulamada tedavi planlar\u0131n\u0131n iyile\u015ftirilmesi i\u00e7in referans sa\u011flamay\u0131 ummaktad\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"<p>Preliminary study on the antibacterial effect of lactobacillus combined with meropenem on methicillin-resistant Staphylococcus aureus Compared with ordinary Staphylococcus aureus, infections caused by methicillin-resistant Staphylococcus aureus (MRSA) have longer hospital stays and higher mortality rates. The 2020 CHINET China Bacterial Resistance Surveillance showed that the detection rate of MRSA was relatively high, at 31.0%, among [&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>Preliminary study on the antibacterial effect of lactobacillus combined with meropenem on methicillin-resistant Staphylococcus aureus - 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\/meti\u0307si\u0307li\u0307ne-di\u0307rencli\u0307-staphylococcus-aureus-uzeri\u0307nde-meropenem\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Preliminary study on the antibacterial effect of lactobacillus combined with meropenem on methicillin-resistant Staphylococcus aureus - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Preliminary study on the antibacterial effect of lactobacillus combined with meropenem on methicillin-resistant Staphylococcus aureus Compared with ordinary Staphylococcus aureus, infections caused by methicillin-resistant Staphylococcus aureus (MRSA) have longer hospital stays and higher mortality rates. 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