上集link: 三十秒科學–被切除90%還有能力回復正常形狀及功能的器官627Please respect copyright.PENANAdqa5uylZue
https://lih.kg/2433238627Please respect copyright.PENANAfapOjnE3L4627Please respect copyright.PENANALXIQFog81o
627Please respect copyright.PENANAc7squWQkWx
撇除皮膚的話,肝臟是我們身體最大的器官。627Please respect copyright.PENANAHucYWpToFQ
除再生能力強大之外,肝臟的另外一個特點就是會與我們的體型成正比關係。627Please respect copyright.PENANA5DEN5QUxVl
627Please respect copyright.PENANARPnjGYIFfk
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。627Please respect copyright.PENANA9l6D12W7VN627Please respect copyright.PENANAK9ph1uWqoI
627Please respect copyright.PENANAdfjy8eAEyA
三個區域的肝臟細胞在新陳代謝及基因表達上均有顯著的分別。627Please respect copyright.PENANAjVMI8Fjou9
譬如說Zone1細胞所獲得的氧氣量比Zone3的為高,Zone1細胞製糖的能力比Zone3的為強。627Please respect copyright.PENANAbJ5gXQUYUs
627Please respect copyright.PENANApfPUuBZy2D
(圖3)在正常情況下,Zone1的肝臟細胞會一直在減少,並由Zone2的細胞繁殖補回所失去的數量,而Zone3的細胞數量則相對上不會有太大變化。627Please respect copyright.PENANAxz9f2PgsVh627Please respect copyright.PENANAy3gf0TfWKv
627Please respect copyright.PENANAoU5F8a7yT8
(圖4)當Zone3區域細胞受損的話,Zone1及2區域細胞便會一起繁殖,填補所失去的細胞。627Please respect copyright.PENANAbsoMngqcgU
反之,當Zone1區域細胞受損的話,Zone2及3區域細胞便會一起繁殖,對其作出填補。627Please respect copyright.PENANAQuQkCb5YhY627Please respect copyright.PENANAQmX6ZhYla0
627Please respect copyright.PENANAaNC3BzIwqU
若果Zone1、2、3細胞一起受損的話,根據老鼠實驗指出(Ref2),開頭時份將會由Zone1的細胞主導繁殖,數量到達一定程度後,Zone2區域的細胞便會出手幫忙,而Zone3區域細胞在整個回復的過程中所參與的比例則全程偏低。627Please respect copyright.PENANAyczvwMHFiu
627Please respect copyright.PENANA8cLr8PFXDn
627Please respect copyright.PENANAatgasblACw
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。627Please respect copyright.PENANAietyE1qI4J
627Please respect copyright.PENANA8Gjqc8GGVs
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/toc627Please respect copyright.PENANA8mqLR5Hx80
627Please respect copyright.PENANAPmG5OUz0Ag
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。627Please respect copyright.PENANA5C9buknrf8
627Please respect copyright.PENANAfYJnl3GAYX
Link:627Please respect copyright.PENANAlWzFzEBCAN
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio627Please respect copyright.PENANA2yiRKzTcOT
627Please respect copyright.PENANAWhsHS2HtPW
627Please respect copyright.PENANA2vCaPJlHCS
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。627Please respect copyright.PENANAUATVltc1d2
627Please respect copyright.PENANAoEQs3VBlxe
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/627Please respect copyright.PENANAhriBTEKaPf
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346627Please respect copyright.PENANAd9r6awBtnU
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/627Please respect copyright.PENANAA27GbHmddj
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/627Please respect copyright.PENANAdufurXU69J
Ref5:https://science.sciencemag.org/content/371/6532/887627Please respect copyright.PENANAGc4hlXCC1r
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #172
三十秒科學–肝臟細胞共可分為三個區域
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