因人而異,膀胱/尿袋 (Urinary Bladder)一般來說可以儲存300-500ml尿液。1165Please respect copyright.PENANAJY5VNpHZEE1165Please respect copyright.PENANAnhSjTDMcQz
1165Please respect copyright.PENANAjBxhW2Ok3B
尿液的其中一個功能,就是將體內的毒素或細菌排出,而膀胱經常有大量尿液儲存,為罪惡的蘊藏之所,體內的警署。1165Please respect copyright.PENANATHX2T2aXmR
1165Please respect copyright.PENANAT4XCreVqLA
想深一層,身體的細菌經由尿液聚首一堂,膀胱豈不是非常容易令受到感染?1165Please respect copyright.PENANAS4Kr5SMTLK
1165Please respect copyright.PENANA9Ot0PcDO8o
(致病的細菌及毒素亦可從糞便排出)1165Please respect copyright.PENANAGRohQOCLEo
1165Please respect copyright.PENANA6CDziYUsfn
1165Please respect copyright.PENANA6Fo5cnvKx1
(圖2)尿調理素(Uromodulin/Tamm–Horsfall Protein)是尿液其中一種常見的主要蛋白,主要在腎臟管道生產。1165Please respect copyright.PENANAIJQRTSsTCb1165Please respect copyright.PENANAo5NL8Ts8ml
1165Please respect copyright.PENANAldDTMTQMy4
它被認定為有抵禦細菌感染的作用,但一直以來也沒有充分的證據得以證明。1165Please respect copyright.PENANAdkQ1wO1Pzf
1165Please respect copyright.PENANAyLA5KCdoat
近日,有科學家利用最新的電子顯微鏡技術及各種實驗輔證(Ref1),終於確立得到尿調理素抵禦細菌感染的功能。1165Please respect copyright.PENANATPrYnmq1g8
1165Please respect copyright.PENANA23XC8PK70n
(圖3)先簡單重溫一下細菌的外部結構,今次我們會特別著重提及Pili,它賦予細菌與外部接觸的能力。1165Please respect copyright.PENANAuzkJXXO89s1165Please respect copyright.PENANAvvrswH06Ux
1165Please respect copyright.PENANAUutRhqul4h1165Please respect copyright.PENANAEHXPeMIV2W
1165Please respect copyright.PENANA6hOHy9kU93
(圖4)左邊是文中的圖片,黃色箭嘴頭所指示的就是細菌的pili,它能夠與uromodulin建立非常穩定的連結;1165Please respect copyright.PENANADw2nv7FOaK
箇中的連結需要糖份組織的幫助。1165Please respect copyright.PENANA9sxyetQf22
1165Please respect copyright.PENANANuirgTjnS9
1165Please respect copyright.PENANA7QXTPgArDG
(圖5)Uromodulin在尿液的大量存在,將會強迫致病的大腸桿菌聚在一起,以免大腸桿菌能夠與膀胱內壁接觸及進行感染。1165Please respect copyright.PENANA8yenu8d8xZ1165Please respect copyright.PENANAXZCxAHQog3
1165Please respect copyright.PENANAU29XcPPC4R
以壓倒性的數量,簡單將致病的大腸桿菌聚集及封鎖在一起,這種防禦機制相對地直接簡單。1165Please respect copyright.PENANA3D4FA0ULR0
至於Uromodulin能否與所有已知的致命細菌結合、會否有著其他的機制及功能,還需要進一步的調查。1165Please respect copyright.PENANAJviZcM1t05
1165Please respect copyright.PENANAwGuIIk7sRF
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。1165Please respect copyright.PENANAUiK6bTXQnd
1165Please respect copyright.PENANANDYh8G7aeQ
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/toc1165Please respect copyright.PENANAMHHO3WH9kW
1165Please respect copyright.PENANAd4t5FLvexN
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。1165Please respect copyright.PENANA8SodJGBm4M
1165Please respect copyright.PENANAlXiJQDh5Kr
Link:1165Please respect copyright.PENANAm9t0Kisahy
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1165Please respect copyright.PENANABw85v80Qhj
1165Please respect copyright.PENANAUH0yNhUiPl
1165Please respect copyright.PENANAyPR1YAPPOR
有興趣接收科普資訊的話,歡迎follow IG: potatopigtongue。1165Please respect copyright.PENANAugUIdvPueQ
1165Please respect copyright.PENANAG7wHJyg28A
Ref1:https://science.sciencemag.org/content/369/6506/1005?ijkey=e112b23dc73c7c7bd746a5711869e4bf44026346&keytype2=tf_ipsecsha
10
ns216.73.216.167da2