上集講述了腸道細菌的品種變異有助大腸癌形成的證據。633Please respect copyright.PENANA5BZTAu99eb
https://www.penana.com/article/527196633Please respect copyright.PENANAmNnH0VeMQf
633Please respect copyright.PENANAd738UDgJmM
633Please respect copyright.PENANAqBSBCgiHeC
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。633Please respect copyright.PENANAxljreJQYdv
633Please respect copyright.PENANAvg16JbCRzD
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據633Please respect copyright.PENANAzLE3e8ovxU
(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。633Please respect copyright.PENANAEu70ODZa2a
633Please respect copyright.PENANABHhLmtwysV
633Please respect copyright.PENANAxtuVEe1Nco
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。633Please respect copyright.PENANAOvmOtb76ca
633Please respect copyright.PENANAItUTnofNTl
(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)。633Please respect copyright.PENANALGvo7JAMcD
633Please respect copyright.PENANALHUYaS4got
633Please respect copyright.PENANAJZtuxXGkCl
633Please respect copyright.PENANAhqeJnQRr04
(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。633Please respect copyright.PENANAph5oYVEcL7
633Please respect copyright.PENANAPFXkfjbrR3
633Please respect copyright.PENANAkJyfKfqXGc
重要的是,兩組老鼠的進食量及體脂均無顯著分別。633Please respect copyright.PENANAPcDGijgMIL
633Please respect copyright.PENANAqDaGe3kgqp
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。633Please respect copyright.PENANA7UfZr8Gwn5
633Please respect copyright.PENANAz0cFtfcRZq
(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。633Please respect copyright.PENANATWd2uhyDew
633Please respect copyright.PENANAUSo2ibaiot
633Please respect copyright.PENANAXN80HqFDTK
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。633Please respect copyright.PENANA2tped4Etyi
633Please respect copyright.PENANAK05gtUmWKp
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。633Please respect copyright.PENANAgTAKAHIl1i
633Please respect copyright.PENANAPUWeBvAyAz
(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。633Please respect copyright.PENANAj4nM6xbmTU
633Please respect copyright.PENANAiEJ01U6NUI
633Please respect copyright.PENANAqlFMxuj8CI
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。633Please respect copyright.PENANAhCE5mxsMup
633Please respect copyright.PENANAtn6rdzoinx
633Please respect copyright.PENANA6RzMD5AkjD
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。633Please respect copyright.PENANANLjSBIGEgC
633Please respect copyright.PENANAvEkkkpz2VH
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/toc633Please respect copyright.PENANA3hnTgI5KdD
633Please respect copyright.PENANAyLa30Ep3gB
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。633Please respect copyright.PENANA0zuB4hnGMD
633Please respect copyright.PENANApP9GUUkQng
Link:633Please respect copyright.PENANAbzmhzWImxP
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio633Please respect copyright.PENANAtUrDjjZCDS
633Please respect copyright.PENANAjPbGiLWjwh
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。633Please respect copyright.PENANAJM76wJDOkp
633Please respect copyright.PENANAHFpOAFEakE
https://www.instagram.com/potatopigtongue/633Please respect copyright.PENANApDlUxio6hr
633Please respect copyright.PENANAQUdpDQuhfo
633Please respect copyright.PENANAI7w1U1uez5
633Please respect copyright.PENANACPIkgXaLEl
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/633Please respect copyright.PENANAkDVGkjoQ65