上集講述了腸道細菌的品種變異有助大腸癌形成的證據。887Please respect copyright.PENANAhBDLtXJ6Wm
https://www.penana.com/article/527196887Please respect copyright.PENANATOxejFgoEB887Please respect copyright.PENANAjoF8mYRvvq
887Please respect copyright.PENANAVHBJ8siQRp
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。887Please respect copyright.PENANAsf1h8etd1f
887Please respect copyright.PENANA721IOgGf1s
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據887Please respect copyright.PENANAOHvLMwfNcF
(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。887Please respect copyright.PENANA67JpCmNm1U887Please respect copyright.PENANAYKDqhfw5Fh
887Please respect copyright.PENANAqYvtliY4eu
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。887Please respect copyright.PENANAPDoF8blqpg
887Please respect copyright.PENANAErtFHRZfH3
(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)。887Please respect copyright.PENANATlgXni8zic887Please respect copyright.PENANAN6dfCam3zb
887Please respect copyright.PENANAxVOIyAKuKx
887Please respect copyright.PENANAWFPxbkqCIQ
(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。887Please respect copyright.PENANAXXzvkCAWr7887Please respect copyright.PENANAlvvxQ7AZWX
887Please respect copyright.PENANAgQ1M26fTB9
重要的是,兩組老鼠的進食量及體脂均無顯著分別。887Please respect copyright.PENANAewiIt0DTsF
887Please respect copyright.PENANA1Vwh63Pyb5
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。887Please respect copyright.PENANAebfx0pjEtt
887Please respect copyright.PENANAwLIUMz1WIN
(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。887Please respect copyright.PENANAU7hFMrJRUT887Please respect copyright.PENANARWXPyFwsIm
887Please respect copyright.PENANAg3DIgEdMT9
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。887Please respect copyright.PENANA2GbSSHUsfW
887Please respect copyright.PENANAJdj0xLRayq
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。887Please respect copyright.PENANA73zE62IETA
887Please respect copyright.PENANAvf2qiCj45u
(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。887Please respect copyright.PENANAhSBrT9tvjU887Please respect copyright.PENANAOAho3LGZ1b
887Please respect copyright.PENANAVDn48UKobF
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。887Please respect copyright.PENANAYAR22KMeIx
887Please respect copyright.PENANAcilSFDdB9q
887Please respect copyright.PENANAAmo8ibRRj3
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。887Please respect copyright.PENANAT9iEcbB064
887Please respect copyright.PENANAsjmfmodAgz
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/toc887Please respect copyright.PENANAbfJbhLbHNh
887Please respect copyright.PENANAYTE2JOTFCo
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。887Please respect copyright.PENANAyH0zV4ecQg
887Please respect copyright.PENANAG0MoibIl7d
Link:887Please respect copyright.PENANAqjCHAmHtUX
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio887Please respect copyright.PENANAufezT7DMqx
887Please respect copyright.PENANA0ocjHeIwAK
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。887Please respect copyright.PENANAzfS3knwjQW
887Please respect copyright.PENANAr55SbfGkuh
https://www.instagram.com/potatopigtongue/887Please respect copyright.PENANAcpcv9FO9e4
887Please respect copyright.PENANAKNlH9mQjk0
887Please respect copyright.PENANASKodMGe5NA
887Please respect copyright.PENANALxJh0YpE0r
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/887Please respect copyright.PENANAQUCYgFYc0l
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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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