上集講述了腸道細菌的品種變異有助大腸癌形成的證據。780Please respect copyright.PENANAKuYb9unwp1
https://www.penana.com/article/527196780Please respect copyright.PENANA4yIBBRVQZq
780Please respect copyright.PENANAODpBhh6seJ
780Please respect copyright.PENANAFf76PQ3DRq
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。780Please respect copyright.PENANAyljXtLurHd
780Please respect copyright.PENANAYpTWpyx1nA
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據780Please respect copyright.PENANAkdbiNrcy7a
(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。780Please respect copyright.PENANAZuLM16kElQ
780Please respect copyright.PENANAKPIv0VwY8o
780Please respect copyright.PENANAfW3uLXb5Un
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。780Please respect copyright.PENANAH48u0UIqVy
780Please respect copyright.PENANAUegDBV6IUB
(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)。780Please respect copyright.PENANABJTMiouLWI
780Please respect copyright.PENANAI4zaZwfocD
780Please respect copyright.PENANADDrBWIQfxb
780Please respect copyright.PENANAiwGmU8kQXX
(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。780Please respect copyright.PENANAaQXdruWGMS
780Please respect copyright.PENANAElXeHxC5k5
780Please respect copyright.PENANAkwwXdLOwgF
重要的是,兩組老鼠的進食量及體脂均無顯著分別。780Please respect copyright.PENANAJjHXNlSc74
780Please respect copyright.PENANA2yIV3a1cb0
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。780Please respect copyright.PENANAsf9lDxWSXv
780Please respect copyright.PENANAUbqUFJWgas
(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。780Please respect copyright.PENANA8POgKziyER
780Please respect copyright.PENANAh5sIk0oC6g
780Please respect copyright.PENANAx85xen2lKR
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。780Please respect copyright.PENANA0Z7xVA4Ek9
780Please respect copyright.PENANAGpgMn4Ls6M
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。780Please respect copyright.PENANAnR7lvMW7vj
780Please respect copyright.PENANAmc0GfGSBUE
(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。780Please respect copyright.PENANAN1jCVo5TrD
780Please respect copyright.PENANA9YXQdYRYcy
780Please respect copyright.PENANA3avRmQvyym
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。780Please respect copyright.PENANAQFSfuJNHl1
780Please respect copyright.PENANAWhbKXqFFMd
780Please respect copyright.PENANAxDwXvm6Wh6
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。780Please respect copyright.PENANAodbOPF7KDY
780Please respect copyright.PENANAXgj0KABorY
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/toc780Please respect copyright.PENANAhSXLdFpD97
780Please respect copyright.PENANAnXv9ZizHQK
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。780Please respect copyright.PENANAsynhNVsWCg
780Please respect copyright.PENANAkjw2NIHs28
Link:780Please respect copyright.PENANAOvKtBYU93A
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio780Please respect copyright.PENANAF7tIykn3Oj
780Please respect copyright.PENANA2oV02OoDh2
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。780Please respect copyright.PENANAD82QvG6uLC
780Please respect copyright.PENANAZPijWeA90R
https://www.instagram.com/potatopigtongue/780Please respect copyright.PENANAt0gWtzkpml
780Please respect copyright.PENANA1JLyeB2eIO
780Please respect copyright.PENANAQODEOMNYPd
780Please respect copyright.PENANAjqgVupWyBM
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/780Please respect copyright.PENANAGocdWowke6