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。276Please respect copyright.PENANA1SuOpRRh6K
276Please respect copyright.PENANALRXpPb6uRb
276Please respect copyright.PENANAe9h0KoaonR
「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)。276Please respect copyright.PENANA7ePvLrQ9Gg
276Please respect copyright.PENANAj8ewzVIGxO
(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。276Please respect copyright.PENANAOGu8VqwJmB
276Please respect copyright.PENANADFkShh00lf
276Please respect copyright.PENANAPil7FCzVCG
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。276Please respect copyright.PENANAeHaLql8ybA
276Please respect copyright.PENANAQtKvysMwji
(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。276Please respect copyright.PENANAMkPO5nkr5h
276Please respect copyright.PENANAPb6Lvwdjcg
276Please respect copyright.PENANAAio9kjUBH7
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。276Please respect copyright.PENANAoMJAOFT6pv
276Please respect copyright.PENANAGUSkxrcd9e
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。276Please respect copyright.PENANAQR4m83B84C
276Please respect copyright.PENANAT90V89FHt1
276Please respect copyright.PENANAapdSsAT0ev
(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。276Please respect copyright.PENANAQDGkaajIqv
276Please respect copyright.PENANAawOrMooxh8
276Please respect copyright.PENANAd6KeuCkCJK
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。276Please respect copyright.PENANAvwwJGXvXxX
276Please respect copyright.PENANAm57uAcoQg8
276Please respect copyright.PENANAN3srWjVK1e
276Please respect copyright.PENANA0t2PIWGLlw
下集將會講解Cancer cachexia的老鼠模型所得出的其中一道結果。276Please respect copyright.PENANAafQ12cB1et
276Please respect copyright.PENANA7KXKbQ0vy8
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。276Please respect copyright.PENANAdBGvOxFU8Y
276Please respect copyright.PENANAZ2XvHeAyVW
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/toc276Please respect copyright.PENANAAW36dOnjzN
276Please respect copyright.PENANAHr3KeEVuUK
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。276Please respect copyright.PENANAW9H5orlG96
276Please respect copyright.PENANAxOLP0JugFY
Link:276Please respect copyright.PENANAInUDw2Sx4i
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio276Please respect copyright.PENANA6xyWnJCg0C
276Please respect copyright.PENANAyMkRegMad4
276Please respect copyright.PENANAt0Smff5j9y
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。276Please respect copyright.PENANAkm3WvdoR9s
276Please respect copyright.PENANAXZEQSpGdTM
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6015555/276Please respect copyright.PENANA0REuQPFfZU
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline Info
-
toc Table of Contents
-
share Share
-
format_color_text Display Settings
-
exposure_plus_1 Recommend
-
Sponsor
-
report_problem Report
-
account_circle Login
Search stories, writers or societies
Continue ReadingClear All
What Others Are ReadingRefresh
X
Never miss what's happening on Penana!
科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #202
三十秒科學–癌症所導致的體重流失(3)
LIKES 1
READS 272
BOOKMARKS 148
campaign
Request update 0
Sponsor
Login with Facebook
or Sign up/Login to comment or bookmark!
Click to load the next chapter
X
After each update request, the author will receive a notification!
smartphone100 → Request update
X
Sponsor again
Click to login
Login first to show your name as a sponsor.
Thank you for supporting the story! :)
Please Login first.
×
Write down what you like about the story
×
Reading Theme:
Font Size:
Line Spacing:
Paragraph Spacing:
Load the next issue automatically
Reset to default
×
People Who Like This