腸道是細菌們聚居體內的其中一道地方,而腸道細菌品種的變異,將有助大腸癌的形成。758Please respect copyright.PENANAz1YNzCVo6Q758Please respect copyright.PENANAW4Jrv6hnh6
758Please respect copyright.PENANA2B63BlitrM
(圖2)糞便含有腸道的細菌,透過糞便移植(其中一方法為從口中灌入),人類腸道的細菌亦因而能夠寄居到老鼠腸道中。758Please respect copyright.PENANA6QHkDQwhdd758Please respect copyright.PENANA0G474nSTMV
758Please respect copyright.PENANAZTNj94jZNf
就此,有科學家嘗試將健康人士及腸癌病人的糞便移植到老鼠腸道中,探索腸道細菌對大腸癌的影響(Ref1)。758Please respect copyright.PENANAIVP7N8WB4g
758Please respect copyright.PENANADXYm6pROx9
(圖3)從圖中可見,莫論是健康還是腸癌人士糞便組別也好,普通老鼠均不會出現腸癌。758Please respect copyright.PENANAA8cEu9F64U758Please respect copyright.PENANAJmDmMimvhC
758Please respect copyright.PENANAbGzXI1ulW2
但在天生容易生腸癌的老鼠中,移植腸癌人士糞便後所出現的腫瘤數量,明顯的比健康人士糞便組別為多。758Please respect copyright.PENANAuyEvJFv1GF
758Please respect copyright.PENANAnBha2jzkck
(圖4)同時,移植腸癌人士糞便後所出現的腫瘤,體積亦明顯的比健康人士糞便組別為大。758Please respect copyright.PENANAXyxJKZqjNJ758Please respect copyright.PENANAsFaDrhe8ar
758Please respect copyright.PENANAU4KKC5l3ON
而移植糞便後,兩組老鼠的腸道細菌品種亦有明顯分別。758Please respect copyright.PENANAaTZBIvkdIN
758Please respect copyright.PENANAhyxICstyPh
(圖5)重要的是,腸癌人士糞便中的某幾隻脂肪酸數量,亦明顯比健康人士糞便組別為少。758Please respect copyright.PENANAZ0CQBktK45
758Please respect copyright.PENANADETHY7H6MH
758Please respect copyright.PENANAbT5wgu81aD
依照現時的理論,人體有部份的腸道細菌乃依靠消化食用纖維維生。758Please respect copyright.PENANAA444bBlXwz
758Please respect copyright.PENANAnyNGufn3Gb
當人體長期沒有進食纖維的話,將會導致腸道細菌品種失衡,使進食脂肪酸的細菌品種助大。758Please respect copyright.PENANAWVxVctXZW4
758Please respect copyright.PENANAcdGQat0BiK
這亦有可能解釋得到,為何腸癌人士糞便中某數款脂肪酸的數量亦相對之為少。758Please respect copyright.PENANAFM8juN86Fo
758Please respect copyright.PENANA94eW6Lsrel
基於腸道細菌品種與大腸癌的形成有著密切關係,有不少研究團隊亦開始研究如何透過檢測糞便的細菌品種來推算出大腸癌的出現機率,與內窺鏡檢查相輔相成。758Please respect copyright.PENANAo92gp2nGM3
758Please respect copyright.PENANAXUG6FmsYTv
758Please respect copyright.PENANAuidS1LSyCC
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。758Please respect copyright.PENANATXdHqSXYFI
758Please respect copyright.PENANAWp28tT4v2k
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/toc758Please respect copyright.PENANAF4VsI2Uci2
758Please respect copyright.PENANAL0c5VGgGoS
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。758Please respect copyright.PENANAWkLsb3J3Qc
758Please respect copyright.PENANAfl3efubwaE
Link:758Please respect copyright.PENANAuXGIYxtsPJ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio758Please respect copyright.PENANAHNaZpyhmRS
758Please respect copyright.PENANA86GT3aBDyA
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。758Please respect copyright.PENANA9Y0h84jEbh
758Please respect copyright.PENANANCp98xEDwJ
https://www.instagram.com/potatopigtongue/758Please respect copyright.PENANAdTEIMI5PmD
758Please respect copyright.PENANAdlH1behX01
758Please respect copyright.PENANAAJcT3qoosi
Ref1:https://www.thelancet.com/journals/ebiom/article/PIIS2352-3964(19)30625-5/fulltext758Please respect copyright.PENANAEB2AwXGm8d
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薯仔聞茱莉

篇 #126
深入淺出–腸道細菌與大腸癌
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