癌細胞從原位轉移到另一器官,亦即是Metastasis,是癌病患者主要的死因。541Please respect copyright.PENANAlj3toIzQ6f541Please respect copyright.PENANAb5wfRNHz01
541Please respect copyright.PENANApl4343HmUO
「有趣的是」,癌細胞雖近乎不會轉移到肌肉位置裡頭,但卻能從遠處釋放物質,經由血管抵達肌肉位置,催使肌肉萎縮,亦即是癌症惡病質(cancer cachexia)。541Please respect copyright.PENANAb2sNjHFCCU
541Please respect copyright.PENANAV5VBYB8I6t
(圖2)肌肉萎縮不但之令病人變得虛弱,難以接近正常劑量的化療,更為致命的是,當心臟肌肉及橫隔膜肌肉亦遭受到萎縮的時候,病人便會因呼吸困難等問題而逝死。541Please respect copyright.PENANAHKsAqRpys1541Please respect copyright.PENANAgweQI625TT
541Please respect copyright.PENANALwdJhNAhrv
早在1858年已有科學家指出cancer cachexia的存在,但至今2021年仍是沒有FDA認可藥物治療cancer cachexia。541Please respect copyright.PENANAbfodGchXxy
541Please respect copyright.PENANAp9nwT9dxFJ
(圖3)現時有不少臨床研究希望可以制衡cancer cachexia,普遍均是從營養方面入手。541Please respect copyright.PENANAnLg33XXEX1541Please respect copyright.PENANAZWPiYkTLLp
541Please respect copyright.PENANAOEV2LvObTS
但結果大多數是只能夠增加病人的脂肪組織,而沒能夠填補已萎縮的肌肉。541Please respect copyright.PENANAcA4ksgfR7J
541Please respect copyright.PENANAN5LqOq8S8b
有一點值得注意的是,肌肉細胞並非是死去,純粹是其分解蛋白質的進程比生產蛋白質的進程來得更快,因而形成萎縮。541Please respect copyright.PENANA2qAH7KccTY
541Please respect copyright.PENANAYcnBEPY4Vk
541Please respect copyright.PENANAYcSZk2PvmK
(圖4)從研究Cancer cachexia的老鼠模型中可以看到,患癌的老鼠不但更為細小,其手腕的握力度亦有所下降。541Please respect copyright.PENANAnD0tkDzcff541Please respect copyright.PENANAkgR0UF8Azj
541Please respect copyright.PENANAscn0APJukv
觀察肌肉細胞橫切面的面積時,亦可以看到肌肉細胞的面積明顯有所縮細。541Please respect copyright.PENANAvpwl25mJ7u
541Please respect copyright.PENANAwHKeMMLkac
541Please respect copyright.PENANAutoUerA6pz
541Please respect copyright.PENANAyjoeKl8yOK
下集將會講解Cancer cachexia的老鼠模型所得出的其中一道結果。541Please respect copyright.PENANAHrhKAP28sf
541Please respect copyright.PENANARhUVCX2ACO
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。541Please respect copyright.PENANA2GCEmYbvIj
541Please respect copyright.PENANA2ZOE0CmT7Z
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/toc541Please respect copyright.PENANASUplLCgyyh
541Please respect copyright.PENANAldrnvFuESW
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。541Please respect copyright.PENANAqhXGbpYH22
541Please respect copyright.PENANAQgzUqPYUW8
Link:541Please respect copyright.PENANAObVIisjzJp
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio541Please respect copyright.PENANAtxfOSYptpo
541Please respect copyright.PENANAVmpJYDHryb
541Please respect copyright.PENANAobEvMIpzkX
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。541Please respect copyright.PENANAoBi4mLI2mj
541Please respect copyright.PENANAqY98GbzLDJ
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015555/541Please respect copyright.PENANAs4CiG59ymQ
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #202
三十秒科學–癌症所導致的體重流失(3)
喜歡 1
閱讀 537
書籤 150
campaign
催更 0
打賞

按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人