上集講述了腸道細菌的品種變異有助大腸癌形成的證據。924Please respect copyright.ＰＥＮＡＮＡicAlwJhXXR
https://www.penana.com/article/527196924Please respect copyright.ＰＥＮＡＮＡOeG695SXOD
924Please respect copyright.ＰＥＮＡＮＡ5UKYKMCIvk
924Please respect copyright.ＰＥＮＡＮＡd6sHdKcKkt
而除大腸癌外，腸道細菌的品種對成長方面亦會構成影響。924Please respect copyright.ＰＥＮＡＮＡG3F0aIomtj
924Please respect copyright.ＰＥＮＡＮＡKPtiFOEtNj
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據924Please respect copyright.ＰＥＮＡＮＡBGYut3mKE6
(重量對比高度、重量對比歲數及高度對比歲數)，定立了兒童是否呈營養充足的標準。924Please respect copyright.ＰＥＮＡＮＡL4F1tqPqRH
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924Please respect copyright.ＰＥＮＡＮＡWoK1kt70Vp
若兒童的三項數據低於某一個程度，兒童便會界定為營養不良的狀態。924Please respect copyright.ＰＥＮＡＮＡzgkIaWucpL
924Please respect copyright.ＰＥＮＡＮＡErAP7XyQ2p
(圖3)根據世衛定下的標準界定其營養攝取量是否充足，有科學家收集來自非洲東南部的內陸國家馬拉威6-18月大的兒童糞便，透過糞便移植(從口中灌入)將人類腸道的細菌寄居到老鼠的腸道中，從而探討腸道細菌對生長的影響（Ref1)。924Please respect copyright.ＰＥＮＡＮＡyjA5HToTOX
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(圖4)在食物款式一模一樣的情況下，移植營養充足兒童糞便的老鼠，其整體重量及肌肉重量均比移植營養不良兒童糞便的老鼠為高。924Please respect copyright.ＰＥＮＡＮＡA9rdeepJFx
924Please respect copyright.ＰＥＮＡＮＡa7ak2m0nxL
924Please respect copyright.ＰＥＮＡＮＡDmZBoNK6Bm
重要的是，兩組老鼠的進食量及體脂均無顯著分別。924Please respect copyright.ＰＥＮＡＮＡVr8PSZBnRj
924Please respect copyright.ＰＥＮＡＮＡ24xxWx9xgf
亦即是表示在食物攝取量一樣的狀態下，移植營養充足兒童糞便的老鼠，其肌肉的增長相對上較高。924Please respect copyright.ＰＥＮＡＮＡZqyH3aLlcN
924Please respect copyright.ＰＥＮＡＮＡoMRvKEZrfp
(圖5)科學家繼而作出另一實驗，糞便移植4日後，老鼠便開始進行不同組別的定居。924Please respect copyright.ＰＥＮＡＮＡMYoXsNqLgB
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924Please respect copyright.ＰＥＮＡＮＡdmLUG9p1GK
當移植營養充足兒童糞便的老鼠與營養不良兒童糞便的老鼠一同定居後，兩者的肌肉重量再也沒有分別。924Please respect copyright.ＰＥＮＡＮＡPdjnaQgeNk
924Please respect copyright.ＰＥＮＡＮＡoVG4Oy5OBe
但兩組分別飼養的話，移植營養充足兒童糞便的老鼠的肌肉重量顯然比營養不良兒童糞便組別為重。924Please respect copyright.ＰＥＮＡＮＡfNOAOAvhGZ
924Please respect copyright.ＰＥＮＡＮＡaVBq51Qm7r
(圖6)科學家發現，不同組別的老鼠定居後，老鼠的腸道群組亦同化成為營養充足的腸道群組。924Please respect copyright.ＰＥＮＡＮＡmLXnukfiN9
924Please respect copyright.ＰＥＮＡＮＡZzc4bn3P8H
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而經過一系列的實驗後，科學家提出R. gnavus 及 C. symbiosum這兩細菌品種在改變新陳代謝方面上具有重大的影響力，引致老鼠生長不良的情況。924Please respect copyright.ＰＥＮＡＮＡJdRJsL1vO9
924Please respect copyright.ＰＥＮＡＮＡM5CXABmykK
924Please respect copyright.ＰＥＮＡＮＡhmP2Al8YZu
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。924Please respect copyright.ＰＥＮＡＮＡOWKUp1bmI8
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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/toc924Please respect copyright.ＰＥＮＡＮＡIY3HBZP2EV
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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。924Please respect copyright.ＰＥＮＡＮＡAGr2ofimlz
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Link:924Please respect copyright.ＰＥＮＡＮＡloLBXRF22Z
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio924Please respect copyright.ＰＥＮＡＮＡN3JvOBx5I1
924Please respect copyright.ＰＥＮＡＮＡtrypQpYedi
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。924Please respect copyright.ＰＥＮＡＮＡ13OE3H1fFn
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https://www.instagram.com/potatopigtongue/924Please respect copyright.ＰＥＮＡＮＡCIwBwZBtXV
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/924Please respect copyright.ＰＥＮＡＮＡldHAmOSDZX
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