真菌感染(Fungi Infection)約引致全球每年約二百萬人的死亡,而現今對抗真菌(Fungi)的藥物類別主要共分為三大類別。677Please respect copyright.PENANAe2YWuIJb7e677Please respect copyright.PENANAVnwMUW81iQ
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(圖2)三大類別的藥物機制雖有不同,但最終目的均是透過破壞真菌的外層結構來抑制其生長。677Please respect copyright.PENANAutxm0dONw9677Please respect copyright.PENANA86iRwwBpSC
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1.Azole677Please respect copyright.PENANAQy0j17RGaK
抑制構成細胞膜的Ergosterol產生677Please respect copyright.PENANAllTuP8t1GA
2. Polyene677Please respect copyright.PENANAv2QQQOWY4D
消耗細胞膜的Ergosterol677Please respect copyright.PENANA6ewGgkhz2U
3. Echinocandins677Please respect copyright.PENANAu4jLRPAKwR
抑制構成細胞外層的糖分組織產生677Please respect copyright.PENANAty2u7qhBFd
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(圖3)然而,現今出現了某一類別的Candida auris,上述三款的藥物均對它無法作出顯著功效。677Please respect copyright.PENANAS2VyxqdPYN677Please respect copyright.PENANAjkQmXOUzSi
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它能夠透過血液循環系統走進全身各部位,引發感染。677Please respect copyright.PENANAwrysA0xrf3
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就在2018年,英國急症室病人出現大規模Candida auris的感染,後來證實為共用探熱針所致(Ref1)。677Please respect copyright.PENANA6YiY472sZx
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(圖4)有科學家近日發表文章(Ref2),在居住在深海生物的微生物中分離出命名為Turbinmicin的天然物質。677Please respect copyright.PENANAJlzrNICjIK677Please respect copyright.PENANAmxxc7rtdMe
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Turbinmicin能有效抑制不同真菌品種,包括Candida auris。677Please respect copyright.PENANAd2yhFCIaIQ
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它的機制乃為影響內部的蛋白質運輸,與現今三類抑制外圍結構的機制不同,可能因而能夠擊殺得到抵擋現今三大類藥物的Candida auris。677Please respect copyright.PENANA9LNLZBjfdE
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它並不會對人體的紅血球造成傷害,高劑量的使用亦沒有對老鼠做成影響,同時亦能治理Candida auris在老鼠體內所引發的感染。677Please respect copyright.PENANAAEjvHE7v64
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但會否引起副作用或其他問題,還需要進一步的研究確實後,才能開啟人類試驗。677Please respect copyright.PENANAs3pl8Kgdn2
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深海一直是未被深入發掘的領域,這一次找到對抗耐藥真菌曙光,日後可能會繼續有意想不到的驚喜。677Please respect copyright.PENANAb7buuSDtJQ
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如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。677Please respect copyright.PENANAi1C2aosa5K
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc677Please respect copyright.PENANAbRH5t2LsvN
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio677Please respect copyright.PENANAykhPk2fS9y
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。677Please respect copyright.PENANAMax4TolJ63
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https://www.instagram.com/potatopigtongue/677Please respect copyright.PENANAV3DowJ6A66
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Ref1:https://www.nejm.org/doi/full/10.1056/NEJMc1900112677Please respect copyright.PENANAUO5lVSFDUU
Ref2:https://science.sciencemag.org/content/370/6519/974677Please respect copyright.PENANA5IfTIs7hE3