上集講述了腸道細菌的品種變異有助大腸癌形成的證據。679Please respect copyright.PENANA036QgojHBW
https://www.penana.com/article/527196679Please respect copyright.PENANAgpmO7M9LPn679Please respect copyright.PENANAUMJsuWej9h
679Please respect copyright.PENANAZevi6Eo0By
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。679Please respect copyright.PENANAAHPJdUbeux
679Please respect copyright.PENANApSi7j4q3kS
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據679Please respect copyright.PENANAECZRlIbuPp
(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。679Please respect copyright.PENANAp6aACuR7rB679Please respect copyright.PENANACoIkf2IOVz
679Please respect copyright.PENANAKYzN8PsoXi
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。679Please respect copyright.PENANAtvzLKGyCdm
679Please respect copyright.PENANAbvHvhSFxEj
(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)。679Please respect copyright.PENANABMCs4rje3j679Please respect copyright.PENANAEZLC8OcXyt
679Please respect copyright.PENANAO9BdrwZh1b
679Please respect copyright.PENANAxH4NBWWuYK
(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。679Please respect copyright.PENANAO1I0zz6WlF679Please respect copyright.PENANAwQ4mcocfcV
679Please respect copyright.PENANAvVlzpKCTYB
重要的是,兩組老鼠的進食量及體脂均無顯著分別。679Please respect copyright.PENANAAilIztBEVr
679Please respect copyright.PENANA9EhtNzxNou
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。679Please respect copyright.PENANA1Fuq2qFOJL
679Please respect copyright.PENANAIQV8QJHNmB
(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。679Please respect copyright.PENANAzW89X8xGnD679Please respect copyright.PENANARZxaZAvCKT
679Please respect copyright.PENANATLd9iJl8On
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。679Please respect copyright.PENANAlNvFf8xhvg
679Please respect copyright.PENANAYhJcNZCoUf
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。679Please respect copyright.PENANACX7PBwQ2UU
679Please respect copyright.PENANAmGCBKm6lzz
(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。679Please respect copyright.PENANAYW2L3MnlH6679Please respect copyright.PENANAo6irF7L1LY
679Please respect copyright.PENANAbemGAQ7dGa
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。679Please respect copyright.PENANAg3OlP8nrEf
679Please respect copyright.PENANApzWTEKUTyQ
679Please respect copyright.PENANAT7KwHf2GMH
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。679Please respect copyright.PENANAeYiZo3WQWQ
679Please respect copyright.PENANAreHPgH8QXy
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/toc679Please respect copyright.PENANA1oJ2mZ9FNC
679Please respect copyright.PENANAlsljSDx8J4
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。679Please respect copyright.PENANAyioBh0o16s
679Please respect copyright.PENANATAyLKKMAyK
Link:679Please respect copyright.PENANAHs2ERUUYCr
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio679Please respect copyright.PENANAQGyHC67gGG
679Please respect copyright.PENANAqBfEwtruyg
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。679Please respect copyright.PENANAqiXcr99e0l
679Please respect copyright.PENANAfS9wpwVItK
https://www.instagram.com/potatopigtongue/679Please respect copyright.PENANA2qOtLDDTBz
679Please respect copyright.PENANAVZP1nceTqL
679Please respect copyright.PENANA4WdXGFesD5
679Please respect copyright.PENANAOD2jnpYOXU
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/679Please respect copyright.PENANARepJY0aMWj
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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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