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731Please respect copyright.PENANAI7G21FJgqb
https://lih.kg/2433238731Please respect copyright.PENANAQXtl0bPn9E731Please respect copyright.PENANAve9PFRVrDb
731Please respect copyright.PENANAeC99llxZLR
撇除皮膚的話,肝臟是我們身體最大的器官。731Please respect copyright.PENANAfr92UGxxyC
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。731Please respect copyright.PENANAHJFRMpNH78
731Please respect copyright.PENANA5a2ClU0Qa1
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。731Please respect copyright.PENANAmqPvE9182n731Please respect copyright.PENANAStCcjZLOMo
731Please respect copyright.PENANAw71EoMKpvp
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。731Please respect copyright.PENANADGzd5zNKdb
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。731Please respect copyright.PENANAKw7LWx1qea
731Please respect copyright.PENANA1waKwYWYV8
(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。731Please respect copyright.PENANANMEo7tUkk2731Please respect copyright.PENANAHWZVQerbhV
731Please respect copyright.PENANA1Lxx5ujWcr
(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。731Please respect copyright.PENANAHQrqVJYcuB
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。731Please respect copyright.PENANAlcVnIpEW1S731Please respect copyright.PENANAzEXACBXvyX
731Please respect copyright.PENANAPvhkIliY2b
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。731Please respect copyright.PENANAQ6dk9jPA7I
731Please respect copyright.PENANA9GwXKfmOTO
731Please respect copyright.PENANAc0QKWwn3nk
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。731Please respect copyright.PENANAzIuWQTBoz0
731Please respect copyright.PENANAhREgpUlKv4
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/toc731Please respect copyright.PENANATW7QOp72l8
731Please respect copyright.PENANAZpSmxzoFoG
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。731Please respect copyright.PENANA8qdf9cJdxr
731Please respect copyright.PENANA78FYZcmWwD
Link:731Please respect copyright.PENANAq7WQ7dhmxS
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio731Please respect copyright.PENANAZcBIG2O5p5
731Please respect copyright.PENANAUsBVsmF0PI
731Please respect copyright.PENANAOj2tArohKv
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。731Please respect copyright.PENANA0hAcJqJJN6
731Please respect copyright.PENANArSVm1atWY7
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/731Please respect copyright.PENANA06QMFtAht8
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346731Please respect copyright.PENANArBdSLCjUJU
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/731Please respect copyright.PENANAke6mDTPzEt
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/731Please respect copyright.PENANAq9tptEWL9a
Ref5:https://science.sciencemag.org/content/371/6532/887731Please respect copyright.PENANAJgRWLB50e5
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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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