上集講述了腸道細菌的品種變異有助大腸癌形成的證據。886Please respect copyright.PENANAV4ZzDGVFWY
https://www.penana.com/article/527196886Please respect copyright.PENANARGYT9aiuBI886Please respect copyright.PENANARe9uPHYWMb
886Please respect copyright.PENANAo5V3kCguAs
而除大腸癌外,腸道細菌的品種對成長方面亦會構成影響。886Please respect copyright.PENANA8bCTxckLrL
886Please respect copyright.PENANAVkl5AO9Vei
(圖2)世衛(WHO)用上來自6個國家的8440個健康兒童三項數據886Please respect copyright.PENANAfmjXRkOp8q
(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。886Please respect copyright.PENANAGmKMkj5psD886Please respect copyright.PENANAjNP4qf8Qqg
886Please respect copyright.PENANA2Qd6rp0XSb
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。886Please respect copyright.PENANAbhDFr3nY9X
886Please respect copyright.PENANAiI3UQrw51z
(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)。886Please respect copyright.PENANAzqz41w39zp886Please respect copyright.PENANAVK06joCswt
886Please respect copyright.PENANADv80yqQZKk
886Please respect copyright.PENANALqZWQxJwII
(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。886Please respect copyright.PENANAFSf7HYUOPV886Please respect copyright.PENANA7huxbLV1su
886Please respect copyright.PENANAXVlfQ2GNaH
重要的是,兩組老鼠的進食量及體脂均無顯著分別。886Please respect copyright.PENANAE7p73CEFsP
886Please respect copyright.PENANAnIU1hgBbPe
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。886Please respect copyright.PENANATGkGCPrbr7
886Please respect copyright.PENANAyFzx1sPKTA
(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。886Please respect copyright.PENANA81AFjt3Pw6886Please respect copyright.PENANApRw6MYQqrD
886Please respect copyright.PENANAE5qbTPyePu
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。886Please respect copyright.PENANADhDMMCbhUa
886Please respect copyright.PENANAqvcgk7UcfH
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。886Please respect copyright.PENANAnBkIUQhpCE
886Please respect copyright.PENANAHfszhxa0Ex
(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。886Please respect copyright.PENANApBmUImXcFn886Please respect copyright.PENANA2Ywd4PuIkY
886Please respect copyright.PENANA4qsR0AWPMr
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。886Please respect copyright.PENANANayTRI0oHR
886Please respect copyright.PENANAn1Dp2fltzX
886Please respect copyright.PENANA19LYf6ArQj
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。886Please respect copyright.PENANA5Us3ip8KQy
886Please respect copyright.PENANAytqKNS2ZBJ
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/toc886Please respect copyright.PENANAxHFjMJkOPa
886Please respect copyright.PENANAXX2eqbZ7Yv
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。886Please respect copyright.PENANA3doQXN0Yj8
886Please respect copyright.PENANA5Mfm0A7pqG
Link:886Please respect copyright.PENANAAJnMetbnnW
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio886Please respect copyright.PENANAscxVYCPF8l
886Please respect copyright.PENANAHxbQZ22Zll
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。886Please respect copyright.PENANAAyUd51lEmW
886Please respect copyright.PENANAaaiArFfQax
https://www.instagram.com/potatopigtongue/886Please respect copyright.PENANA7nOk894AY2
886Please respect copyright.PENANAkt0OBdCgxo
886Please respect copyright.PENANA4ac7FfKI51
886Please respect copyright.PENANAgq5aGvu5nK
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4787260/886Please respect copyright.PENANAQXbjazodps
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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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