上集講述了腸道細菌的品種變異有助大腸癌形成的證據。918Please respect copyright.PENANA2d9zyUCmHD
https://www.penana.com/article/527196918Please respect copyright.PENANASK4MdnN31R918Please respect copyright.PENANAt83NqCwt6A
918Please respect copyright.PENANA39uE8KwYq0
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。918Please respect copyright.PENANAl2jeh8mXNy
918Please respect copyright.PENANACsEa0MmfpW
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據918Please respect copyright.PENANAD39HG81pbK
(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。918Please respect copyright.PENANAWonHNff6BE918Please respect copyright.PENANAVEojVrIyng
918Please respect copyright.PENANAOqWGuWXv52
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。918Please respect copyright.PENANAMrSOffnAPa
918Please respect copyright.PENANAsF4ZMvPAIa
(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)。918Please respect copyright.PENANA3wVkCpNRXs918Please respect copyright.PENANA2DYSkuAYxE
918Please respect copyright.PENANA2eqgmMVGwE
918Please respect copyright.PENANApjniCohpxG
(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。918Please respect copyright.PENANAwy86BHNHmy918Please respect copyright.PENANACeQtBFle3s
918Please respect copyright.PENANAnTe5cQ1MEJ
重要的是,兩組老鼠的進食量及體脂均無顯著分別。918Please respect copyright.PENANA3K9VuXTE2s
918Please respect copyright.PENANADN1BjSABbj
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。918Please respect copyright.PENANAPaWgSSZcpl
918Please respect copyright.PENANAxWJOYu3Fsm
(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。918Please respect copyright.PENANAN08eN8h9Hy918Please respect copyright.PENANATQdFhvbOLy
918Please respect copyright.PENANA3MxROzJgnR
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。918Please respect copyright.PENANAOvJ7WYX97b
918Please respect copyright.PENANAj5ZBsRk97R
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。918Please respect copyright.PENANAK8LNxjfA5A
918Please respect copyright.PENANAI3h3IN8y4m
(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。918Please respect copyright.PENANAx44u4bM6Hx918Please respect copyright.PENANAdiZoB2K9Dv
918Please respect copyright.PENANAWLKr1K37zA
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。918Please respect copyright.PENANALKXqzjSLi4
918Please respect copyright.PENANAhr5mnCWZTv
918Please respect copyright.PENANAwbNYPgiRHs
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。918Please respect copyright.PENANAlCht7A0ga2
918Please respect copyright.PENANAvrtP9vJs2Y
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/toc918Please respect copyright.PENANA3Hw3kxWI0j
918Please respect copyright.PENANAdhSJhcTZnt
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。918Please respect copyright.PENANAdsNqLVicSu
918Please respect copyright.PENANAkuYV4Kw8F3
Link:918Please respect copyright.PENANAFxrAQLJFfE
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio918Please respect copyright.PENANA44bhKTgR4K
918Please respect copyright.PENANAsbi8diCvge
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。918Please respect copyright.PENANAQQzRwRCUjh
918Please respect copyright.PENANA1eKVqRiKgj
https://www.instagram.com/potatopigtongue/918Please respect copyright.PENANADikTw9pvri
918Please respect copyright.PENANAiS2dxaW1Ac
918Please respect copyright.PENANA0Gp7Tw3fId
918Please respect copyright.PENANAmU1wYq1dmE
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/918Please respect copyright.PENANAw3wWtJ2DG0
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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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