因人而異,膀胱/尿袋 (Urinary Bladder)一般來說可以儲存300-500ml尿液。1055Please respect copyright.PENANAiGlcfzycn11055Please respect copyright.PENANAKh62CpzOwM
1055Please respect copyright.PENANATTZJ4zl3ti
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。1055Please respect copyright.PENANAVHp4qaH2mS
1055Please respect copyright.PENANARlCJVc4z6Q
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?1055Please respect copyright.PENANALyGjtYdct1
1055Please respect copyright.PENANA50xNVLeVQN
(致病的細菌及毒素亦可從糞便排出)1055Please respect copyright.PENANAiWNCmGZBwl
1055Please respect copyright.PENANAKAD3JMAuAL
1055Please respect copyright.PENANA0Qv8jsd41W
(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。1055Please respect copyright.PENANAegGPxJ43A81055Please respect copyright.PENANAOWP2twc51y
1055Please respect copyright.PENANA9eHosMKsuM
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。1055Please respect copyright.PENANANdbHlzelO3
1055Please respect copyright.PENANAuFwhZF8odz
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。1055Please respect copyright.PENANAtofMGLuzFj
1055Please respect copyright.PENANAiXvt0fp2tT
(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。1055Please respect copyright.PENANA16ZdHEoOn11055Please respect copyright.PENANA3MxRnn4iYU
1055Please respect copyright.PENANAfCYFxDFQvU1055Please respect copyright.PENANAaco8l0hCQJ
1055Please respect copyright.PENANAaHOszHaNqm
(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;1055Please respect copyright.PENANAV5GZFHldge
箇中的連結需要糖份組織的幫助。1055Please respect copyright.PENANAI0M23kdA2E
1055Please respect copyright.PENANAlaNMNOTao2
1055Please respect copyright.PENANAcez8WMvoNi
(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。1055Please respect copyright.PENANAUS39gAuMwe1055Please respect copyright.PENANAg33Zxhb3SZ
1055Please respect copyright.PENANAm8SeP7Ri8w
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。1055Please respect copyright.PENANA8Qw3v5BSAX
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。1055Please respect copyright.PENANALeyy7FpE3G
1055Please respect copyright.PENANAPTOtUjwV90
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。1055Please respect copyright.PENANAHTEFS7m1nV
1055Please respect copyright.PENANANtMOpIBxIM
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/toc1055Please respect copyright.PENANACMxrMGSMo5
1055Please respect copyright.PENANA8pUYKYA9Ab
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。1055Please respect copyright.PENANABHBksorGdc
1055Please respect copyright.PENANAWmNGUZ7KUA
Link:1055Please respect copyright.PENANA52QlTtSk8G
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1055Please respect copyright.PENANAyrlM15FyDi
1055Please respect copyright.PENANA6r7bxbgf5B
1055Please respect copyright.PENANAEBZkGl3sSl
有興趣接收科普資訊的話,歡迎follow IG: potatopigtongue。1055Please respect copyright.PENANAIYmd7qg1Yx
1055Please respect copyright.PENANAdL5ZxKfC06
Ref1:https://science.sciencemag.org/content/369/6506/1005?ijkey=e112b23dc73c7c7bd746a5711869e4bf44026346&keytype2=tf_ipsecsha
10
ns3.17.145.236da2