上集講述了腸道細菌的品種變異有助大腸癌形成的證據。677Please respect copyright.PENANAbA4xMnDH5F
https://www.penana.com/article/527196677Please respect copyright.PENANA4ojzZZTvyZ677Please respect copyright.PENANA1Ypfv1r37c
677Please respect copyright.PENANAfjUDv1I4wk
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。677Please respect copyright.PENANAuJva3eoQKl
677Please respect copyright.PENANAI5B2UHuo01
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據677Please respect copyright.PENANA51VwBQSS2A
(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。677Please respect copyright.PENANAOq9EmpMxIO677Please respect copyright.PENANAs6dC4i5uwV
677Please respect copyright.PENANA3kRfkmAmHq
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。677Please respect copyright.PENANAELLvwyrOeq
677Please respect copyright.PENANA44EnAEzyJo
(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)。677Please respect copyright.PENANAgT16CRPAyu677Please respect copyright.PENANAgHJRCe4oD6
677Please respect copyright.PENANAVaxOzxhjqF
677Please respect copyright.PENANARYKVDbFbJ8
(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。677Please respect copyright.PENANAzmk3azD9tB677Please respect copyright.PENANA43IyAe86dI
677Please respect copyright.PENANA3dAJnOVnoE
重要的是,兩組老鼠的進食量及體脂均無顯著分別。677Please respect copyright.PENANAEsSxcUXJCD
677Please respect copyright.PENANAtlCq69bYHA
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。677Please respect copyright.PENANAcMzeaKoA2Z
677Please respect copyright.PENANAsD3gmwhR3e
(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。677Please respect copyright.PENANAcoWgfQLdXi677Please respect copyright.PENANAO4vRMZ22yu
677Please respect copyright.PENANA1HYY7TdD8a
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。677Please respect copyright.PENANA9zWHVfoyOC
677Please respect copyright.PENANA8ixmIW74pC
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。677Please respect copyright.PENANAq0dz7Ap14v
677Please respect copyright.PENANAJpwCVi5D2j
(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。677Please respect copyright.PENANAWQ6bBTiQRh677Please respect copyright.PENANAYpHyCfI9qq
677Please respect copyright.PENANAsquphKiFjo
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。677Please respect copyright.PENANAQ0n8Mtv7Od
677Please respect copyright.PENANAHUl6aPw7J2
677Please respect copyright.PENANApcuS5Vpgv2
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。677Please respect copyright.PENANAED1qabtM9M
677Please respect copyright.PENANA9twT8YYjez
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/toc677Please respect copyright.PENANAHXFM5Yyuhl
677Please respect copyright.PENANAy3Ej9sng02
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。677Please respect copyright.PENANADw7stm7Qvu
677Please respect copyright.PENANAEo5r5tnbOu
Link:677Please respect copyright.PENANAHhCn7AyCbr
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio677Please respect copyright.PENANAWXzvhMdIeN
677Please respect copyright.PENANA5KwJjY5SMu
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。677Please respect copyright.PENANAoc4cIEpmrK
677Please respect copyright.PENANACPaFNbFUNO
https://www.instagram.com/potatopigtongue/677Please respect copyright.PENANAmmXrD8EC5s
677Please respect copyright.PENANA9Nj9RHqaSL
677Please respect copyright.PENANA0wjI8KMmgu
677Please respect copyright.PENANAoHj6Wg8MZO
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/677Please respect copyright.PENANAG1PzXE1r30
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深入淺出–腸道細菌對生長的影響(一)
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