進食含有糖份的食物後，血液胰島素濃度便會上升，輔助細胞們吸取葡萄糖。768Please respect copyright.ＰＥＮＡＮＡI8z2kUyP0A
768Please respect copyright.ＰＥＮＡＮＡ0yfOJPsb0X
768Please respect copyright.ＰＥＮＡＮＡ61UId5CG0V
在利用肌肉細胞及脂肪細胞的實驗中，胰島素錄得可以在數分鐘內增強細胞的吸收葡萄糖效率2-10倍有多。768Please respect copyright.ＰＥＮＡＮＡoT5iDLpF9C
768Please respect copyright.ＰＥＮＡＮＡKrHBQAoQs9
768Please respect copyright.ＰＥＮＡＮＡZJav1oFmMh
(圖2)細胞需要特定位於表面的蛋白質幫忙，才能有效吸取糖份。768Please respect copyright.ＰＥＮＡＮＡWjxfOfJ0EG
768Please respect copyright.ＰＥＮＡＮＡPPR59e2qzK
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GLUT4是其中一款負責吸取糖份的蛋白質，但它平常所在的位置是在細部內部、而非位於表面。768Please respect copyright.ＰＥＮＡＮＡAktA0UjpXO
當細胞遇上胰島素的時候，GLUT4就會轉移到細胞表面，加快細胞吸收糖份的效率。768Please respect copyright.ＰＥＮＡＮＡT1lbC5ucMm
768Please respect copyright.ＰＥＮＡＮＡASYbWBkHSs
768Please respect copyright.ＰＥＮＡＮＡHmYA2M4CfR
(圖3)肌肉細胞及脂肪細胞均擁有GLUT4蛋白質，因此胰島素能增強它們吸取糖份的效率。768Please respect copyright.ＰＥＮＡＮＡ61FbMcAIW5
768Please respect copyright.ＰＥＮＡＮＡFhfKAqE5E9
768Please respect copyright.ＰＥＮＡＮＡf9QN2E4QM9
但兩者不同的是，肌肉會將過量的糖份轉化成為糖原(Glycogen)，768Please respect copyright.ＰＥＮＡＮＡTFvhtqXGxp
768Please respect copyright.ＰＥＮＡＮＡ55fth7RS8m
而脂肪細胞僅會將過量糖份的5%左右轉化成為糖原，另外的50%轉化成為脂肪(Triglyceride)，其餘的則不會用作儲存。768Please respect copyright.ＰＥＮＡＮＡunsJ3SKpaz
768Please respect copyright.ＰＥＮＡＮＡ4n6qXQhgMN
768Please respect copyright.ＰＥＮＡＮＡYNSX8NqTk8
值得留意的是，餐後的葡萄糖，僅約20%會被脂肪細胞所吸收，另外80%均由其他細胞使用。768Please respect copyright.ＰＥＮＡＮＡ4g05MVu5dF
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768Please respect copyright.ＰＥＮＡＮＡ0l3rQakdZH
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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。768Please respect copyright.ＰＥＮＡＮＡ2Rjoz8KRPl
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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/toc768Please respect copyright.ＰＥＮＡＮＡGsYCpvEM7V
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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。768Please respect copyright.ＰＥＮＡＮＡOCcI41YXBT
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Link:768Please respect copyright.ＰＥＮＡＮＡEbbKtVPl3X
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio768Please respect copyright.ＰＥＮＡＮＡtxloJUoAsy
768Please respect copyright.ＰＥＮＡＮＡhlVIwnf5lg
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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。768Please respect copyright.ＰＥＮＡＮＡ6aB5SIjZpg
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Ref1:https://www.cell.com/cell-metabolism/fulltext/S1550-4131(21)00126-1#fig1768Please respect copyright.ＰＥＮＡＮＡ71YSutSLH2
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