上集講述了腸道細菌的品種變異有助大腸癌形成的證據。867Please respect copyright.PENANAVfjq8WzLBn
https://www.penana.com/article/527196867Please respect copyright.PENANAU5XJwTtSwg867Please respect copyright.PENANAjkt9BukxtA
867Please respect copyright.PENANAG6MUMyj3iq
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。867Please respect copyright.PENANA7pQLVFjnUf
867Please respect copyright.PENANAV21cQ97Rq8
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據867Please respect copyright.PENANAa4lNZtjXEQ
(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。867Please respect copyright.PENANAmUohLMvoCa867Please respect copyright.PENANAQZ4ZBb6Qp3
867Please respect copyright.PENANAyyXu4RxkIm
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。867Please respect copyright.PENANAAGX9RoqXzQ
867Please respect copyright.PENANARQ8rXIJejt
(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)。867Please respect copyright.PENANAAhj9qt0Lhu867Please respect copyright.PENANAJi4zJ6e3zE
867Please respect copyright.PENANA7avRm99cRp
867Please respect copyright.PENANAolSoviCVIY
(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。867Please respect copyright.PENANAXZYXe04Szo867Please respect copyright.PENANAERo8x0l0Gq
867Please respect copyright.PENANAbMaxJNUiS2
重要的是,兩組老鼠的進食量及體脂均無顯著分別。867Please respect copyright.PENANAmsvW3VBALP
867Please respect copyright.PENANAPsrKhdsSKj
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。867Please respect copyright.PENANA5JYhykV4Vp
867Please respect copyright.PENANAPWPHfAoUhI
(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。867Please respect copyright.PENANAbFKXej1bu0867Please respect copyright.PENANADY5hZbzc51
867Please respect copyright.PENANAC3gVpFFki7
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。867Please respect copyright.PENANAWVyqsHdjdg
867Please respect copyright.PENANAcwcfHzS8Kx
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。867Please respect copyright.PENANA20nUQz1giI
867Please respect copyright.PENANAaHT3v7RBC4
(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。867Please respect copyright.PENANA2AprxP743a867Please respect copyright.PENANApYNLJaW3na
867Please respect copyright.PENANAV3h4mnNDWE
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。867Please respect copyright.PENANA91WHCFQ3WC
867Please respect copyright.PENANATlM3e96zK8
867Please respect copyright.PENANA8pDav7EUCs
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。867Please respect copyright.PENANAYbhJBIKqKf
867Please respect copyright.PENANAJP0fXx8UnV
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/toc867Please respect copyright.PENANAbNe1319hJk
867Please respect copyright.PENANAs2Nuw6jOsl
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。867Please respect copyright.PENANAf3ihlPn4tA
867Please respect copyright.PENANAFfZqjLyw12
Link:867Please respect copyright.PENANA2z7oYu2SuH
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio867Please respect copyright.PENANA5TaGC7p25e
867Please respect copyright.PENANA6ACcfTcPN7
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。867Please respect copyright.PENANAmAthc8CH24
867Please respect copyright.PENANAcQ3t2qwdnL
https://www.instagram.com/potatopigtongue/867Please respect copyright.PENANAXyd8QO73SN
867Please respect copyright.PENANAlxQlDUZ6P7
867Please respect copyright.PENANArkn3lO9pSC
867Please respect copyright.PENANAmvAzOxkTeT
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/867Please respect copyright.PENANAzlIxOfgWXE