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559Please respect copyright.PENANAdIpRqJfL0G
https://lih.kg/2433238559Please respect copyright.PENANANN2S3WabIP
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撇除皮膚的話,肝臟是我們身體最大的器官。559Please respect copyright.PENANAmtrkgfHHtM
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。559Please respect copyright.PENANA1vsZc7V7LJ
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(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。559Please respect copyright.PENANAzDArY0537e
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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。559Please respect copyright.PENANAjPIdbyycN9
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。559Please respect copyright.PENANACqgwWTWG75
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(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。559Please respect copyright.PENANAAX7hWjdoDN
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(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。559Please respect copyright.PENANAfXJwAwaVjD
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。559Please respect copyright.PENANA2cfAYwyAZ3
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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。559Please respect copyright.PENANAIgB01Y0lgy
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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。559Please respect copyright.PENANATv4mToGAHJ
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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/toc559Please respect copyright.PENANA8zaRDogfMh
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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。559Please respect copyright.PENANAvNF2s9gZji
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Link:559Please respect copyright.PENANANnw5yHFQlX
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio559Please respect copyright.PENANA9tD3VqnFTd
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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。559Please respect copyright.PENANApVsaTaIe56
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Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/559Please respect copyright.PENANAXg1X9dEazU
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346559Please respect copyright.PENANA7LOPgiOa8v
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/559Please respect copyright.PENANAXAoMUeV8ZB
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/559Please respect copyright.PENANAkSIjzgJklp
Ref5:https://science.sciencemag.org/content/371/6532/887559Please respect copyright.PENANATQuPBGI740