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663Please respect copyright.PENANAfS39bgKAav
https://lih.kg/2433238663Please respect copyright.PENANA27w5kync22663Please respect copyright.PENANAXPw8FGnxwb
663Please respect copyright.PENANA9VNB0wMIJR
撇除皮膚的話,肝臟是我們身體最大的器官。663Please respect copyright.PENANACWHQcLMrdD
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。663Please respect copyright.PENANAUakDDSFZF8
663Please respect copyright.PENANAFkNiaU3PnU
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。663Please respect copyright.PENANAiNXM0WZ0zJ663Please respect copyright.PENANADVUqosxfZi
663Please respect copyright.PENANAtjPc74AglJ
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。663Please respect copyright.PENANAzMFAmXTgDf
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。663Please respect copyright.PENANAZwhBHuaBtm
663Please respect copyright.PENANAKAAkkb8Bdm
(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。663Please respect copyright.PENANAfXSqaDd2QR663Please respect copyright.PENANAwAfO8cWJCS
663Please respect copyright.PENANAmC2yQpQcih
(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。663Please respect copyright.PENANA5JEXwVX6ho
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。663Please respect copyright.PENANAznk71u22HL663Please respect copyright.PENANAXi2hCKdp4k
663Please respect copyright.PENANA0Z5a12Zlzo
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。663Please respect copyright.PENANA8p9aN7NR1v
663Please respect copyright.PENANAsx30NuHhNo
663Please respect copyright.PENANAVasXKdLyrE
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。663Please respect copyright.PENANAxtbvp59Ihr
663Please respect copyright.PENANABtib9K82VB
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/toc663Please respect copyright.PENANAJ9hMzFD32P
663Please respect copyright.PENANAMKAaG87TOa
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。663Please respect copyright.PENANABDZQTIWlRf
663Please respect copyright.PENANAEFT3FFTj6j
Link:663Please respect copyright.PENANAwcZPvXUIdi
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio663Please respect copyright.PENANAKZ0z0vC9bv
663Please respect copyright.PENANAdQDcUPCbRg
663Please respect copyright.PENANA4tigZk00kS
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。663Please respect copyright.PENANA9l16CU0HNQ
663Please respect copyright.PENANAHP8BauWmUd
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/663Please respect copyright.PENANAwD1zjfMjtP
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346663Please respect copyright.PENANAtEF5ZW4aDj
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/663Please respect copyright.PENANAFtAvtdRKWQ
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/663Please respect copyright.PENANANSLaatXFKx
Ref5:https://science.sciencemag.org/content/371/6532/887663Please respect copyright.PENANAKASCFknohM
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科普專欄–薯不揀單
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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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