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723Please respect copyright.PENANAi5dfZBsSTf
https://lih.kg/2433238723Please respect copyright.PENANAfgyWAXu5sZ723Please respect copyright.PENANAYY3klnbDUZ
723Please respect copyright.PENANADxCStNLeMz
撇除皮膚的話,肝臟是我們身體最大的器官。723Please respect copyright.PENANAyyy02NvVgW
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。723Please respect copyright.PENANAyGErW44YcT
723Please respect copyright.PENANA04sA6dCD6x
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。723Please respect copyright.PENANADVUhowc5tI723Please respect copyright.PENANAMoieZaKVKc
723Please respect copyright.PENANAYUN0wukvOX
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。723Please respect copyright.PENANAm2jaTRBL1n
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。723Please respect copyright.PENANATbdW3fRvhZ
723Please respect copyright.PENANAkRILvnuG7Z
(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。723Please respect copyright.PENANAjkOdyFChX2723Please respect copyright.PENANAymGzzXYUXT
723Please respect copyright.PENANA1vUXhBfMWu
(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。723Please respect copyright.PENANAxF8NxCUzSf
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。723Please respect copyright.PENANAXOz4hC1y3L723Please respect copyright.PENANAHsox3uDGXf
723Please respect copyright.PENANAPsp3SavtCe
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。723Please respect copyright.PENANAK65sxAovgH
723Please respect copyright.PENANAQMRL4PJjZB
723Please respect copyright.PENANAvr9VRDyiuI
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。723Please respect copyright.PENANATKkOoxIiL7
723Please respect copyright.PENANAF6E1JcvWs9
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/toc723Please respect copyright.PENANAZbRdcfk9Om
723Please respect copyright.PENANAkP4kCqUnSU
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。723Please respect copyright.PENANArDH2O4YH1q
723Please respect copyright.PENANAUg9t73wGNW
Link:723Please respect copyright.PENANATYzsGurkvh
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio723Please respect copyright.PENANAEEcUNc4KnO
723Please respect copyright.PENANASYlaxT3Wsb
723Please respect copyright.PENANAqRacyAFYF3
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。723Please respect copyright.PENANAV55yMUzJgV
723Please respect copyright.PENANA7O2o2w2Y4o
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/723Please respect copyright.PENANAJCTOiyIf83
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346723Please respect copyright.PENANABGlHIx1RRg
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/723Please respect copyright.PENANAeXMnwdVU7J
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/723Please respect copyright.PENANAHbTxUg2QOA
Ref5:https://science.sciencemag.org/content/371/6532/887723Please respect copyright.PENANADdGvGyZHFh
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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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