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。411Please respect copyright.PENANAWqanrzTST0
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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。411Please respect copyright.PENANA6KiH8lJU2Y
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1.Azole411Please respect copyright.PENANAyOjBSLJyoq
抑制構成細胞膜的Ergosterol產生411Please respect copyright.PENANAyFso9jxgI5
2. Polyene411Please respect copyright.PENANAKAdwbBnJna
消耗細胞膜的Ergosterol411Please respect copyright.PENANAtJ6sn8YWJe
3. Echinocandins411Please respect copyright.PENANA9QshN37rXh
抑制構成細胞外層的糖分組織產生411Please respect copyright.PENANAXXfVT5ScP8
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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。411Please respect copyright.PENANApfkEOU3GOp
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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。411Please respect copyright.PENANAy0JxjoyEzb
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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)。411Please respect copyright.PENANAvwcEClQXiJ
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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。411Please respect copyright.PENANAPnik4qZl12
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Turbinmicin能有效抑制不同真菌品種,包括Candida auris。411Please respect copyright.PENANAQY3KA0jPBP
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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。411Please respect copyright.PENANAYrnZ3L0ZB5
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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。411Please respect copyright.PENANAkD1bK4TynZ
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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。411Please respect copyright.PENANA9vVgubvSVt
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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。411Please respect copyright.PENANAQzb9tmvzfk
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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。411Please respect copyright.PENANAVT2xXdSXRc
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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/toc411Please respect copyright.PENANAnZinNNUY9R
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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。411Please respect copyright.PENANA4ksTAhUYoU
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Link:411Please respect copyright.PENANAlwsLKyflss
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio411Please respect copyright.PENANALIjXZJTRxX
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。411Please respect copyright.PENANA9DpCWyAzpn
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https://www.instagram.com/potatopigtongue/411Please respect copyright.PENANAYGECo0ob00
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Ref1:https://www.nejm.org/doi/full/10.1056/NEJMc1900112411Please respect copyright.PENANASDkpMfd6Z0
Ref2:https://science.sciencemag.org/content/370/6519/974411Please respect copyright.PENANAhFKTMKhwRA
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科普專欄–薯不揀單
作者:
薯仔聞茱莉
篇 #108
深入淺出–從深海生物中發掘出抗真菌藥物
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