腸道發炎的時候,腸道會製造一些游離基(Reactive oxygen species)用來消滅外來的入侵者。427Please respect copyright.PENANAgPsOQZ0Gtj
較為常見的游離基就是H2O2 ,亦即是俗稱為雙氧水的化學物。427Please respect copyright.PENANAISR6ejSTQm427Please respect copyright.PENANAN4SxW9wQK7
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當細菌接受過多的游離基侵襲,便會死去。427Please respect copyright.PENANAcFrmC1fIs4
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(圖2)奈何道高一呎,魔高一丈,有一些細菌內含化解雙氧水的蛋白酶,更把雙氧水化解而成的氧氣供自己所用,不但不受損傷,反而加快自己的生長速度。427Please respect copyright.PENANAMQbgqO2VMP427Please respect copyright.PENANAVDkpGfYT1R
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(圖3)腸道發炎產生的游離基,腸道一隻名為NOX1的蛋白質有份參與製作的過程。427Please respect copyright.PENANARk7LH1mqfx427Please respect copyright.PENANA11Fi8Z1vp8
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當NOX1蛋白質在老鼠身上除去後,腸道發炎其間,那些擁有化解雙氧水及運用氧氣特性的細菌亦再也沒能快速滋長,奠定了腸道發炎時產生的游離基對個別細菌類別的影響。427Please respect copyright.PENANACqrOsVHxCQ
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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。427Please respect copyright.PENANA4dRQcxwGy2
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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/toc427Please respect copyright.PENANAD3u9r9caq7
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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。427Please respect copyright.PENANAVwW2CmfFlN
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Link:427Please respect copyright.PENANAk5Vtr1caxv
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio427Please respect copyright.PENANAcQI4YKvGY7
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基於WhatsApp/Facebook等問題,IG將不會再作更新,只會寄居本土LIHKG及Penana。427Please respect copyright.PENANAAAtshZpguI
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Ref1:https://pubmed.ncbi.nlm.nih.gov/33053375/
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