癌細胞跟正常細胞一樣，就算處於停止生長的狀態，均需攝取營養維持細胞運作。711Please respect copyright.ＰＥＮＡＮＡoZ1HLW7Gjj
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在這個基礎下，有不少主張提倡以生酮飲食(Ketogenic Diet)作為醫治癌症的輔助療法。711Please respect copyright.ＰＥＮＡＮＡ0IEfc8MxcV
究竟這是「武肺乃由5G網路而起」之流，還是有其實質科學實據支持呢?711Please respect copyright.ＰＥＮＡＮＡPNcLWtD9um
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（圖2）有不少的癌細胞均出現與PI3K蛋白質有關的變異，促使到它們具備更強大的快速繁殖及抵禦進行自我滅亡機制特性。711Please respect copyright.ＰＥＮＡＮＡGpuiiSrMPn
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有見及此，科學家們攜手合作，研發出藥物針對已變異的PI3K蛋白質，並在2010年其間進行大量的人類臨床研究，對相應的癌症病人下藥。711Please respect copyright.ＰＥＮＡＮＡgQKWQsGyPf
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遺憾的是，結果非常參差，整體成效並不理想。711Please respect copyright.ＰＥＮＡＮＡVGFNlygcdg
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（圖3）深入探討為何會失敗後，科學家發現藥物對人體產生了一道副作用，就是誘使肝臟產生糖份，使血糖上升。711Please respect copyright.ＰＥＮＡＮＡETGYi6ATiy
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胰臟因著血糖的上升而產生胰島素，而非常諷刺的是，胰島素是激勵PI3K蛋白質的物質。711Please respect copyright.ＰＥＮＡＮＡDZTS52Yqh4
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亦即是說，藥物副作用所產生的胰島素，抵消了藥物本來抑制PI3K的功用。711Please respect copyright.ＰＥＮＡＮＡVNcafLyvCc
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（圖4）基於生酮飲食能夠消耗肝臟的糖原，以及維持血液低胰島素水平，科學家嘗試利用生酮飲食來制衡藥物的副作用，並在老鼠模型上取得非常可觀的成果。711Please respect copyright.ＰＥＮＡＮＡjF6SS9kNkn
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現在即將進行子宮內壁膜癌症患者的臨床測試，以生酮飲食再配上PI3K藥物，希望能夠取得理想的成果。711Please respect copyright.ＰＥＮＡＮＡlfN7CPRrmy
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但有一點要注意的是，在某類型血癌及腦癌個案，生酮飲食反之然會鼓吹癌細胞加速生長，這很有可能是因為是某類別的癌細胞特別傾向吸收脂肪或酮體。711Please respect copyright.ＰＥＮＡＮＡQB8I1XNZZ1
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換句話說，在尚未摸透自身所患的癌細胞其新陳代謝特性之前，胡亂採取生酮飲食將有機會引來反效果，間接為癌細胞提供有利生長的環境。711Please respect copyright.ＰＥＮＡＮＡC07xAnIGHs
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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。711Please respect copyright.ＰＥＮＡＮＡ0eTIYZC8vV
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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/toc711Please respect copyright.ＰＥＮＡＮＡlhTdjCkT1H
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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。711Please respect copyright.ＰＥＮＡＮＡvmlIuO4wJD
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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/portfolio711Please respect copyright.ＰＥＮＡＮＡvFM0AhJMd1
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Ref1:https://www.nature.com/articles/s41586-018-0343-4711Please respect copyright.ＰＥＮＡＮＡF29OCtk78Q
Ref2:https://science.sciencemag.org/content/372/6537/20711Please respect copyright.ＰＥＮＡＮＡDZl3I31ceR
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