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。521Please respect copyright.PENANAUuIMMESbhO
521Please respect copyright.PENANAMa0LzSnf17
521Please respect copyright.PENANASe6ubH9leM
(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。521Please respect copyright.PENANA1hTDG3Rwba
521Please respect copyright.PENANAam26NekwZm
521Please respect copyright.PENANAi6T21bihCh
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)。521Please respect copyright.PENANAYK1rjlFyKT
521Please respect copyright.PENANAM9HKozUTlY
(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。521Please respect copyright.PENANAMXRNjG2zTY
521Please respect copyright.PENANAUsPQoT8yDv
521Please respect copyright.PENANAZvRAVVlZPx
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。521Please respect copyright.PENANA7BTEDMd8MJ
521Please respect copyright.PENANA7XxOSIFIZB
(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。521Please respect copyright.PENANAwWpdDzEcnm
521Please respect copyright.PENANAv7HmVubYbK
521Please respect copyright.PENANAVKUWwt03Uv
而移植糞便後,兩組老鼠的腸道細菌品種亦有明顯分別。521Please respect copyright.PENANACE6ukDPTjI
521Please respect copyright.PENANAlwZW0VHeSN
(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。521Please respect copyright.PENANAZbRPlzU8eV
521Please respect copyright.PENANAmfapDqBYIq
521Please respect copyright.PENANAMQJrRditdu
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。521Please respect copyright.PENANAVDsSW7nQZJ
521Please respect copyright.PENANAmWmQeXFTgp
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。521Please respect copyright.PENANADg6DHuQuIE
521Please respect copyright.PENANAeuQwcVmgfT
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。521Please respect copyright.PENANARpbvzCclwq
521Please respect copyright.PENANAmgjHbVqQqj
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。521Please respect copyright.PENANAihAz8a10hb
521Please respect copyright.PENANAFC3esABdg9
521Please respect copyright.PENANAJD6GNg4akp
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。521Please respect copyright.PENANAdwNNpPMRmb
521Please respect copyright.PENANAb7lzjKR8FH
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/toc521Please respect copyright.PENANATzL2EI3fB5
521Please respect copyright.PENANAY06DJt76nc
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。521Please respect copyright.PENANAtugxVxXGcX
521Please respect copyright.PENANAwHiMkImLmJ
Link:521Please respect copyright.PENANAMHBXtX4m9c
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio521Please respect copyright.PENANAswrkeSDLKk
521Please respect copyright.PENANAJYg4Xng9Tc
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。521Please respect copyright.PENANAm7T5cUAn5I
521Please respect copyright.PENANA3l3OCGqcl1
https://www.instagram.com/potatopigtongue/521Please respect copyright.PENANAJxih0pJ7hk
521Please respect copyright.PENANATqjjx5agTA
521Please respect copyright.PENANAlVPzPUuXM7
Ref1:https://www.thelancet.com/journals/ebiom/article/PIIS2352-3964(19)30625-5/fulltext521Please respect copyright.PENANAbMuJTFmcJK