此為上集的補充篇:三十秒科學–癌症所導致的體重流失220Please respect copyright.PENANAKq4IuRarBl
https://lih.kg/2397914220Please respect copyright.PENANA0xzwV9mS9P
220Please respect copyright.PENANAyeY45F73pY
癌症惡病質(cancer cachexia)泛指因癌症而導致的體重流失,大部份情況下主要是由喪失肌肉所致,並沒法依靠進食來填補其喪失。220Please respect copyright.PENANAsMDGciqeAD
220Please respect copyright.PENANAiAtreHkP9m
220Please respect copyright.PENANAkjwitJZGlb
在眾多癌症之中,高達接近70%的胰臟癌病人會出現cancer cachexia,總體重的損失在六個月內可高達25%。220Please respect copyright.PENANANQBns5O6xE
相反,患上前列腺癌的病人僅只有約10%的人出現cancer cachexia。220Please respect copyright.PENANAu3RJEYhr7h
220Please respect copyright.PENANAmgJLZnRwUa
220Please respect copyright.PENANAhSJlHarH3a
(圖2)病人出現cancer cachexia的話(以體重損失超過10%為指標),其生存的機率亦會因而顯著下降。220Please respect copyright.PENANAZEKuDIkixg
220Please respect copyright.PENANAi2BysqKsin
220Please respect copyright.PENANAN1sJfj3fBA
正因如此,若能了解其cancer cachexia機制並加以針對的話,將會是抵抗癌症的其中一道手法。220Please respect copyright.PENANAIPn09ryDM2
220Please respect copyright.PENANAwhDFuPnWaT
220Please respect copyright.PENANA23oUH1OabO
(圖3)癌細胞所導致的體重流失,主要是由肌肉喪失所致。220Please respect copyright.PENANAyIgF0COZb6
而當我們的肌肉受到傷害或撕裂的時候,裡頭的幹細胞以及圖中所指的細胞將會出手幫忙製造肌肉,填補其損失。220Please respect copyright.PENANAXkLKMR0Wuf
220Please respect copyright.PENANAC6Z0JoVF65
220Please respect copyright.PENANANEcH3mMia4
220Please respect copyright.PENANAgSV29RkC28
癌細胞的厲害之處就是能夠釋出物質經由血管到達肌肉,誘導肌肉出現受傷情況之餘,並同時阻止肌肉幹細胞進行重生,因而導致肌肉流失情況發生。220Please respect copyright.PENANAXGMAG2JpLY
220Please respect copyright.PENANAjJHXbFIioQ
癌細胞之所以這樣做,其中的一道推論是希望透過破壞肌肉而使血液間的氨基酸(蛋白質)含量增加,然後借助肝臟把這些氨基酸轉變成糖份,再由血液循環系統輸送給自身所用。220Please respect copyright.PENANA1o5dAXDhHF
220Please respect copyright.PENANA39QcqErNZf
因著胰臟癌病人出現cancer cachexia的機率較高,有不少科學家均就此利用老鼠胰臟癌模型來研究cancer cachexia的機制。220Please respect copyright.PENANAgsSvqFKmCG
220Please respect copyright.PENANAZpXXy4gwB6
至今已至少找出得到,癌細胞所釋出的物質會導致肌肉幹細胞一種名為Pax7的蛋白質含量不斷上升,並因而導致肌肉幹細胞沒法子進行重組肌肉舉動。220Please respect copyright.PENANAxqywTf8GzN
220Please respect copyright.PENANA1nmtwjVLsk
220Please respect copyright.PENANAl2v1nh4WcR
220Please respect copyright.PENANAsR8dc4oVGA
220Please respect copyright.PENANAMoyCJE9fK5
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。220Please respect copyright.PENANAD44e60SdoI
220Please respect copyright.PENANARVLj7SL8ey
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/toc220Please respect copyright.PENANAb9sxDqmBLo
220Please respect copyright.PENANAKvLoZbCxwg
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。220Please respect copyright.PENANA30gjUDILJk
220Please respect copyright.PENANAQPG0AmT8Bw
Link:220Please respect copyright.PENANAXJckvwDpXG
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio220Please respect copyright.PENANAIFHmdiI9VJ
220Please respect copyright.PENANA3LrA8xPZMO
220Please respect copyright.PENANA3oJPDRgoFU
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。220Please respect copyright.PENANAaZz0Sax828
220Please respect copyright.PENANAba6NVcBadP
Ref1:https://www.nature.com/articles/nrdp2017105220Please respect copyright.PENANAHPbSLkdr7C
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 #201
三十秒科學–癌症所導致的體重流失(2)
LIKES 1
READS 216
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