上集講述了腸道細菌的品種變異有助大腸癌形成的證據。678Please respect copyright.PENANAJ9VsCgkCJF
https://www.penana.com/article/527196678Please respect copyright.PENANALOp9TIgKVZ678Please respect copyright.PENANA3BC6KbAnf7
678Please respect copyright.PENANAA1GrH4dulu
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。678Please respect copyright.PENANAE4ZtGA0htW
678Please respect copyright.PENANAkVrnG73cu4
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據678Please respect copyright.PENANAztraDvbJyz
(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。678Please respect copyright.PENANAkbUBRgYAOG678Please respect copyright.PENANApE4PlV252z
678Please respect copyright.PENANAXm544vUfko
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。678Please respect copyright.PENANAB2k13zRtNj
678Please respect copyright.PENANAHlAmd1Ljjf
(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)。678Please respect copyright.PENANAoty2zHK7tE678Please respect copyright.PENANAloRO0sewzF
678Please respect copyright.PENANAzArQi23wFa
678Please respect copyright.PENANActhrg46uhF
(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。678Please respect copyright.PENANAy1QuMSYwem678Please respect copyright.PENANAR2IR6HYR6L
678Please respect copyright.PENANA4PLJI7wVw7
重要的是,兩組老鼠的進食量及體脂均無顯著分別。678Please respect copyright.PENANAQIazep6Tu6
678Please respect copyright.PENANAWbsuHPzh8i
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。678Please respect copyright.PENANAjOjForOu2H
678Please respect copyright.PENANAnX4vjWqWpd
(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。678Please respect copyright.PENANAUBmOrYG4Y8678Please respect copyright.PENANAhDhLiSLnqd
678Please respect copyright.PENANAVbulPmIHe9
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。678Please respect copyright.PENANAqvDLUqhgrd
678Please respect copyright.PENANANKpAYHBBlz
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。678Please respect copyright.PENANAmpSZjnj78T
678Please respect copyright.PENANA8PIvAhLznp
(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。678Please respect copyright.PENANA5jaKq5S1b8678Please respect copyright.PENANA9mVT66JJDC
678Please respect copyright.PENANAOMbx0giPtR
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。678Please respect copyright.PENANAQl2DB4jYLU
678Please respect copyright.PENANAjZDczXekdK
678Please respect copyright.PENANA0TAlpBDGEb
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。678Please respect copyright.PENANAjBgGUUL5Cr
678Please respect copyright.PENANAqAkbuRxgYp
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/toc678Please respect copyright.PENANAFGbAS4vBzF
678Please respect copyright.PENANAItK3w8tptG
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。678Please respect copyright.PENANAnvY5hFapil
678Please respect copyright.PENANAeIzLNKcLT0
Link:678Please respect copyright.PENANAoVslxMxb4w
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio678Please respect copyright.PENANAjIzzCClcAR
678Please respect copyright.PENANAkMk0SD9l3L
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。678Please respect copyright.PENANA5ZufHtLEjI
678Please respect copyright.PENANAqgN0n9IsuF
https://www.instagram.com/potatopigtongue/678Please respect copyright.PENANAUbQQ5qRRn6
678Please respect copyright.PENANAcnWKnNLyvZ
678Please respect copyright.PENANA3g9tvScUVv
678Please respect copyright.PENANAc9YrU43uoz
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/678Please respect copyright.PENANAjqDEfjMtuU
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篇 #129
深入淺出–腸道細菌對生長的影響(一)
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