上集講述了腸道細菌的品種變異有助大腸癌形成的證據。920Please respect copyright.PENANAmjjQZRlkCj
https://www.penana.com/article/527196920Please respect copyright.PENANAsKsgO9mSXA920Please respect copyright.PENANAS0V0zMar7o
920Please respect copyright.PENANADUkuyZlTlE
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。920Please respect copyright.PENANAv6PFWpmTtJ
920Please respect copyright.PENANAdIjBBcrpPS
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據920Please respect copyright.PENANAfhjZdTXhUD
(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。920Please respect copyright.PENANAETMULHwqHI920Please respect copyright.PENANAH4ST76mr21
920Please respect copyright.PENANAYjGdDjh77s
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。920Please respect copyright.PENANA2g8FSvnsh9
920Please respect copyright.PENANAxKSMEjwvQW
(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)。920Please respect copyright.PENANA6IZZoTigUW920Please respect copyright.PENANAg4u2L7yJyl
920Please respect copyright.PENANAsWg4vWVS4Y
920Please respect copyright.PENANAmb5ZoMjYkc
(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。920Please respect copyright.PENANA8R7pSFA6Nd920Please respect copyright.PENANA12L5CRZfsY
920Please respect copyright.PENANACacqAkwMda
重要的是,兩組老鼠的進食量及體脂均無顯著分別。920Please respect copyright.PENANAFcYOxEsuSM
920Please respect copyright.PENANAp56TX9ZVgr
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。920Please respect copyright.PENANAZyWFeN9o5a
920Please respect copyright.PENANAmWnrsRNren
(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。920Please respect copyright.PENANAK1jwqJ6jX4920Please respect copyright.PENANAztYyeBRnTF
920Please respect copyright.PENANAX2dQ1xE7EX
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。920Please respect copyright.PENANAlGvhwkXM1o
920Please respect copyright.PENANATR6xJecm6h
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。920Please respect copyright.PENANAYSmSlzBLd0
920Please respect copyright.PENANA7pmidQW3O0
(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。920Please respect copyright.PENANAiZhQAL7XqC920Please respect copyright.PENANA2pGiFzu7i7
920Please respect copyright.PENANAqLhc8QQmiI
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。920Please respect copyright.PENANAw46RVZ0Kip
920Please respect copyright.PENANAGpwZNDxlpH
920Please respect copyright.PENANAStonRNUyRU
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。920Please respect copyright.PENANAvaE1hqRb6F
920Please respect copyright.PENANAa8mWdxhCSj
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/toc920Please respect copyright.PENANAqE1UqtVScu
920Please respect copyright.PENANAPdwhNT2qYE
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。920Please respect copyright.PENANA3TKqph6chd
920Please respect copyright.PENANAzTRkkmGTsk
Link:920Please respect copyright.PENANAvCleJqPnKS
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio920Please respect copyright.PENANAMDZlDa6Um8
920Please respect copyright.PENANAFBa05kQgqU
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。920Please respect copyright.PENANASQaqAxl7z0
920Please respect copyright.PENANAaXR3hLYJXm
https://www.instagram.com/potatopigtongue/920Please respect copyright.PENANAaEiEKLSiYU
920Please respect copyright.PENANAU3Ck3SCVu4
920Please respect copyright.PENANAecgLV4PDNx
920Please respect copyright.PENANAzWD6SdtJgL
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/920Please respect copyright.PENANARv8RC047Id
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科普專欄–薯不揀單
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薯仔聞茱莉

篇 #129
深入淺出–腸道細菌對生長的影響(一)
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