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684Please respect copyright.PENANAKRblZvZnX6
https://lih.kg/2433238684Please respect copyright.PENANAwyWKZ89nAv684Please respect copyright.PENANAmitGYKk8gc
684Please respect copyright.PENANA3KBAIAzdPO
撇除皮膚的話,肝臟是我們身體最大的器官。684Please respect copyright.PENANA5LEEm8KQ1X
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。684Please respect copyright.PENANA6YuBCaslLT
684Please respect copyright.PENANAPTh5NRkTzn
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。684Please respect copyright.PENANAa2SAmnI1KH684Please respect copyright.PENANAi21Tlk71C3
684Please respect copyright.PENANATEA83JMNwW
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。684Please respect copyright.PENANAaHNYG1kEDg
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。684Please respect copyright.PENANAbHriLtqhYc
684Please respect copyright.PENANA9FSP2jrQL3
(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。684Please respect copyright.PENANAx5QPZ9DPIu684Please respect copyright.PENANAyQen6BX0z5
684Please respect copyright.PENANAi1wlHRxiNd
(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。684Please respect copyright.PENANAy1GaDgOKRc
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。684Please respect copyright.PENANAPoO8P532O6684Please respect copyright.PENANA5PdaoI9UaR
684Please respect copyright.PENANAdXcZaTPpn8
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。684Please respect copyright.PENANAVQ672UKT9L
684Please respect copyright.PENANAL9HefEOdhA
684Please respect copyright.PENANAnLVJ1xIleD
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。684Please respect copyright.PENANAEeBRMLLWs6
684Please respect copyright.PENANArop2UVOLwt
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/toc684Please respect copyright.PENANAMNUp9bV3u4
684Please respect copyright.PENANAd6LBRRKpst
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。684Please respect copyright.PENANAnxOblxngn1
684Please respect copyright.PENANAFiOlWuuGNG
Link:684Please respect copyright.PENANA1If1BMaQch
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio684Please respect copyright.PENANARIZpfITIM8
684Please respect copyright.PENANALYQScdQNWH
684Please respect copyright.PENANAgGMNiN22FS
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。684Please respect copyright.PENANAwft8AjFDHs
684Please respect copyright.PENANAyWotprv1J2
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/684Please respect copyright.PENANAzWOwwSqnis
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346684Please respect copyright.PENANAP0sItRrF82
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/684Please respect copyright.PENANAA3x9drHGVj
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/684Please respect copyright.PENANA54fRC5C4EP
Ref5:https://science.sciencemag.org/content/371/6532/887684Please respect copyright.PENANAvPf96k533t
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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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