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。535Please respect copyright.PENANAg4XITCAB9q
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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。535Please respect copyright.PENANA93HUBL0Odg
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1.Azole535Please respect copyright.PENANAZH9SbIwTmW
抑制構成細胞膜的Ergosterol產生535Please respect copyright.PENANAq5jamyWVVk
2. Polyene535Please respect copyright.PENANAqjXVhrRbxT
消耗細胞膜的Ergosterol535Please respect copyright.PENANAYiEJ7LBljg
3. Echinocandins535Please respect copyright.PENANArtfoRrmnTE
抑制構成細胞外層的糖分組織產生535Please respect copyright.PENANAIacYJD5DKZ
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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。535Please respect copyright.PENANAejiXb2pKw8
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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。535Please respect copyright.PENANAW3M3XrMrqj
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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)。535Please respect copyright.PENANAaqZKPzIAmH
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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。535Please respect copyright.PENANAMXc9JmXDIe
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Turbinmicin能有效抑制不同真菌品種,包括Candida auris。535Please respect copyright.PENANABlZfk21gpO
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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。535Please respect copyright.PENANA0OmHbwdW53
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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。535Please respect copyright.PENANA6kHsBxLzPG
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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。535Please respect copyright.PENANAXQgJy3j6hz
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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。535Please respect copyright.PENANAI2qUUylSxi
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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。535Please respect copyright.PENANAby2a8fANEH
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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/toc535Please respect copyright.PENANAJd8XP5paam
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。535Please respect copyright.PENANAf13ukYNhWk
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Link:535Please respect copyright.PENANArXD6ENSKr3
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio535Please respect copyright.PENANAdkYyGNurqv
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。535Please respect copyright.PENANAZzq0ob9Pas
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https://www.instagram.com/potatopigtongue/535Please respect copyright.PENANA2yXnFMejWp
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Ref1:https://www.nejm.org/doi/full/10.1056/NEJMc1900112535Please respect copyright.PENANAbfkOaFqa9e
Ref2:https://science.sciencemag.org/content/370/6519/974535Please respect copyright.PENANAoqONTNehHB