上集講述了腸道細菌的品種變異有助大腸癌形成的證據。923Please respect copyright.PENANAqSrWAFDFwl
https://www.penana.com/article/527196923Please respect copyright.PENANABPpZLGJCfV923Please respect copyright.PENANA9RvJfKS6iN
923Please respect copyright.PENANAf69F5gf7lm
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。923Please respect copyright.PENANA2zyrpaFI2g
923Please respect copyright.PENANAFi9mIMyFWI
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據923Please respect copyright.PENANAzFQd4tEOiB
(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。923Please respect copyright.PENANA2oxFfr5f0A923Please respect copyright.PENANA9waEMMuCPZ
923Please respect copyright.PENANAdi62RwqhJu
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。923Please respect copyright.PENANApHnlfpIMWI
923Please respect copyright.PENANAWAkZUxfmPX
(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)。923Please respect copyright.PENANAn5Np4WEFSF923Please respect copyright.PENANANOXk2EFGJs
923Please respect copyright.PENANA89SPI7NMaX
923Please respect copyright.PENANA28319Cm73y
(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。923Please respect copyright.PENANADGbVJWyDbL923Please respect copyright.PENANABEepTvo1LE
923Please respect copyright.PENANAC4lUJtv4FU
重要的是,兩組老鼠的進食量及體脂均無顯著分別。923Please respect copyright.PENANA04qdqDcrCC
923Please respect copyright.PENANA0imRNg3lEW
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。923Please respect copyright.PENANAK96alyr3YM
923Please respect copyright.PENANA9K0nfkY6wv
(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。923Please respect copyright.PENANAmZUqMjLXve923Please respect copyright.PENANADuQHazTdvB
923Please respect copyright.PENANABhTP80mUE2
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。923Please respect copyright.PENANAbSFW7DMMpc
923Please respect copyright.PENANAWdHb1Iuy5E
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。923Please respect copyright.PENANAdvhMfavKkG
923Please respect copyright.PENANA5xKwwlsvGq
(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。923Please respect copyright.PENANAtwfUWZX8GW923Please respect copyright.PENANAZxvpKvyxe3
923Please respect copyright.PENANA24INq98u96
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。923Please respect copyright.PENANAXk01ONTIrX
923Please respect copyright.PENANAGSWpYrgnzJ
923Please respect copyright.PENANA8z5uqjfBha
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。923Please respect copyright.PENANATfrc1kVZNQ
923Please respect copyright.PENANAuu4SDTdZO4
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/toc923Please respect copyright.PENANARvUdp1mnQ9
923Please respect copyright.PENANAdvJtRBX2yB
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。923Please respect copyright.PENANACBgx9TULiX
923Please respect copyright.PENANAdLI983n0IC
Link:923Please respect copyright.PENANAlxTP3ljQZd
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio923Please respect copyright.PENANApTrkUPaA3L
923Please respect copyright.PENANAsKquvNYbST
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。923Please respect copyright.PENANA3Sdgh2nFgB
923Please respect copyright.PENANALy1m6bFFO7
https://www.instagram.com/potatopigtongue/923Please respect copyright.PENANAQpSJfD6m5W
923Please respect copyright.PENANADuKSnjiuaA
923Please respect copyright.PENANANXnL8AKhZm
923Please respect copyright.PENANAeWRZCeyYyn
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/923Please respect copyright.PENANAa49yytUQaG
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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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