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。696Please respect copyright.ＰＥＮＡＮＡ8sFERHkkh6
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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。696Please respect copyright.ＰＥＮＡＮＡnYZvEuX2WP
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?696Please respect copyright.ＰＥＮＡＮＡevY0aXfMFp
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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。696Please respect copyright.ＰＥＮＡＮＡL9KChn1FdO
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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。696Please respect copyright.ＰＥＮＡＮＡScLNQfG69g
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遺憾的是，結果非常參差，整體成效並不理想。696Please respect copyright.ＰＥＮＡＮＡ83yoktk4l4
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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。696Please respect copyright.ＰＥＮＡＮＡPXuxHQS8uY
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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。696Please respect copyright.ＰＥＮＡＮＡ1x0ZLFIPJI
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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。696Please respect copyright.ＰＥＮＡＮＡx0m0oQ2gfs
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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。696Please respect copyright.ＰＥＮＡＮＡcT5xRNzvS5
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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。696Please respect copyright.ＰＥＮＡＮＡg9cvKP23d8
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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。696Please respect copyright.ＰＥＮＡＮＡqBPr22OA4t
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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。696Please respect copyright.ＰＥＮＡＮＡxdhLvHiAhN
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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。696Please respect copyright.ＰＥＮＡＮＡjywSUcQDVA
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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/toc696Please respect copyright.ＰＥＮＡＮＡdiu683pdkL
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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。696Please respect copyright.ＰＥＮＡＮＡq4lNdvAm1I
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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/portfolio696Please respect copyright.ＰＥＮＡＮＡYnnV47X2lB
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。696Please respect copyright.ＰＥＮＡＮＡ3NsLBEAEme
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Ref1:https://www.nature.com/articles/s41586-018-0343-4696Please respect copyright.ＰＥＮＡＮＡIiXKWfSQoX
Ref2:https://science.sciencemag.org/content/372/6537/20696Please respect copyright.ＰＥＮＡＮＡOlCOjc4yN3
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