上集講述了腸道細菌的品種變異有助大腸癌形成的證據。868Please respect copyright.PENANAqU4kyoW84r
https://www.penana.com/article/527196868Please respect copyright.PENANAvjuIzTI9HA868Please respect copyright.PENANAq5xKWMhY8M
868Please respect copyright.PENANASEzfA42nlu
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。868Please respect copyright.PENANAY9FQOWh0wl
868Please respect copyright.PENANA3cLrbuyUIn
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據868Please respect copyright.PENANADztDbbGPi4
(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。868Please respect copyright.PENANAvuxhWL8q1R868Please respect copyright.PENANAhdj7n9MwSm
868Please respect copyright.PENANAge9XO3kSRt
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。868Please respect copyright.PENANAXf5BWaPlzg
868Please respect copyright.PENANAPTVcICA6BP
(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)。868Please respect copyright.PENANA4tXZdsxL0J868Please respect copyright.PENANAhI7nUDWG9G
868Please respect copyright.PENANAlUyaQGXcYi
868Please respect copyright.PENANALz3Vkapw8w
(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。868Please respect copyright.PENANArqBSf7tkdh868Please respect copyright.PENANAr0AftqzzrD
868Please respect copyright.PENANAQvhMzpa6LD
重要的是,兩組老鼠的進食量及體脂均無顯著分別。868Please respect copyright.PENANA5BRVpKZXke
868Please respect copyright.PENANAUH3DLsVGUS
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。868Please respect copyright.PENANA132WKSfrB8
868Please respect copyright.PENANAbubud81lxM
(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。868Please respect copyright.PENANALiBuZm7Dkz868Please respect copyright.PENANAhhREwSjR15
868Please respect copyright.PENANA7hMG9ykoX6
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。868Please respect copyright.PENANAaMW3JgitlH
868Please respect copyright.PENANAwsVpcW0eLJ
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。868Please respect copyright.PENANAHNxuTP82nR
868Please respect copyright.PENANAOQLTq4S6PM
(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。868Please respect copyright.PENANA5NI4uflw1Q868Please respect copyright.PENANAsCKczrZQm8
868Please respect copyright.PENANApAZj4fPIt5
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。868Please respect copyright.PENANAsRpZoeqipa
868Please respect copyright.PENANA0hWSF0QNHf
868Please respect copyright.PENANAgWAXoABuue
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。868Please respect copyright.PENANAveE5FHzzyz
868Please respect copyright.PENANAnMEdk08ypa
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/toc868Please respect copyright.PENANAVhl7q74DtN
868Please respect copyright.PENANAGKo8lN6IJE
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。868Please respect copyright.PENANA9if3npw6Rf
868Please respect copyright.PENANAB4agzCl8XY
Link:868Please respect copyright.PENANAVG6zR8Dyig
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio868Please respect copyright.PENANAnNIYT6p6cQ
868Please respect copyright.PENANAyGRfYZX4UD
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。868Please respect copyright.PENANAEFLvj4STUc
868Please respect copyright.PENANAIt6f8bESiW
https://www.instagram.com/potatopigtongue/868Please respect copyright.PENANA4Y7JcxQKHi
868Please respect copyright.PENANARkxiRLIz92
868Please respect copyright.PENANAyIThB4VS3o
868Please respect copyright.PENANAPZAYagw3Xn
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/868Please respect copyright.PENANALaijXxnzYM
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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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