上集講述了腸道細菌的品種變異有助大腸癌形成的證據。871Please respect copyright.PENANA6o3hXZdKuZ
https://www.penana.com/article/527196871Please respect copyright.PENANAdYtiwqLow8871Please respect copyright.PENANArLQIN3Hnrg
871Please respect copyright.PENANAwVtnIB53NA
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。871Please respect copyright.PENANAupXv7p9CQC
871Please respect copyright.PENANAZ64YecFhEU
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據871Please respect copyright.PENANAFiMpeNxifX
(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。871Please respect copyright.PENANAkmh42SCokD871Please respect copyright.PENANAp82Imovg1T
871Please respect copyright.PENANAsljymGz54z
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。871Please respect copyright.PENANAAL64SwA41c
871Please respect copyright.PENANAAz4fk0ucvT
(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)。871Please respect copyright.PENANAurpfQz1fFK871Please respect copyright.PENANAS3gMq25iyX
871Please respect copyright.PENANA3WB50U3c12
871Please respect copyright.PENANACm6WjatK1n
(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。871Please respect copyright.PENANAgH8DOFGET2871Please respect copyright.PENANAGZxFhJSieq
871Please respect copyright.PENANAg264gJtgBQ
重要的是,兩組老鼠的進食量及體脂均無顯著分別。871Please respect copyright.PENANA0SEo7zV0aS
871Please respect copyright.PENANAht3ZHuZwIj
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。871Please respect copyright.PENANAAGgEF5vVsQ
871Please respect copyright.PENANABCk0mfy8mN
(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。871Please respect copyright.PENANAP3nbxCEExu871Please respect copyright.PENANASCmDIR3Xmx
871Please respect copyright.PENANA0Qh5jMbqbG
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。871Please respect copyright.PENANAlqhiv8ybTz
871Please respect copyright.PENANA3Mvy1JduYK
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。871Please respect copyright.PENANAL2rQnjbMEB
871Please respect copyright.PENANAzn8cTLiwyR
(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。871Please respect copyright.PENANAgo9JQSgwyp871Please respect copyright.PENANA3FImyEv6Ua
871Please respect copyright.PENANAwKUyrM8G2o
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。871Please respect copyright.PENANAwO0cuqoNRm
871Please respect copyright.PENANAKLiJPIgCSh
871Please respect copyright.PENANAKPhGsAqnl8
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。871Please respect copyright.PENANArtOWDd29II
871Please respect copyright.PENANALgBDVbTMBI
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/toc871Please respect copyright.PENANAUHkRfv8cMc
871Please respect copyright.PENANALp5avmMLmo
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。871Please respect copyright.PENANA9uQ9ZGijMN
871Please respect copyright.PENANAEZg9BO8YXP
Link:871Please respect copyright.PENANAxqEA1iLv1b
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio871Please respect copyright.PENANAVNtybcDBKF
871Please respect copyright.PENANALfPiRTwnnG
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。871Please respect copyright.PENANAwATK66sNcx
871Please respect copyright.PENANAyKVShXmlul
https://www.instagram.com/potatopigtongue/871Please respect copyright.PENANAZMJGvAa4jC
871Please respect copyright.PENANApl5E5rCTWY
871Please respect copyright.PENANALEVS5Jnpqv
871Please respect copyright.PENANAA3xpzNqGae
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/871Please respect copyright.PENANA7kV3Pc7aFB
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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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