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625Please respect copyright.PENANApXYxJrmsoX
https://lih.kg/2433238625Please respect copyright.PENANAq3PlpUip44625Please respect copyright.PENANAjgn9x5GptE
625Please respect copyright.PENANAh4Ck43qJ4X
撇除皮膚的話,肝臟是我們身體最大的器官。625Please respect copyright.PENANAgcDwUxyHra
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。625Please respect copyright.PENANAiYS32ilFJ4
625Please respect copyright.PENANAFGY0CU5YOl
(圖2)肝臟細胞根據其所在位置,共可分為三個區域(Zone)。625Please respect copyright.PENANAAYAltoKnfU625Please respect copyright.PENANA1loJmEIPj8
625Please respect copyright.PENANADDV3y0zxJH
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。625Please respect copyright.PENANAgHw6r3tkEh
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。625Please respect copyright.PENANAm4d6cYDBxj
625Please respect copyright.PENANAGk9T3UY4DD
(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。625Please respect copyright.PENANA1FYWuib0G8625Please respect copyright.PENANAxIk4sAMRd3
625Please respect copyright.PENANA1pmtu2J5Ko
(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。625Please respect copyright.PENANAdR1w7CFUxZ
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。625Please respect copyright.PENANAl1ZpfjghFw625Please respect copyright.PENANADXUTcASjV2
625Please respect copyright.PENANAe7nBm9fBpI
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。625Please respect copyright.PENANAsgIPdDICuF
625Please respect copyright.PENANAW5T1MPNmL1
625Please respect copyright.PENANApMjf5tzned
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。625Please respect copyright.PENANA9gMPt4BbCf
625Please respect copyright.PENANAq8SoLjOD0q
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/toc625Please respect copyright.PENANAIA9KZWvvSW
625Please respect copyright.PENANAHLJjlsLH5y
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。625Please respect copyright.PENANA0TWmZTBL3Y
625Please respect copyright.PENANAiM55Xbjna3
Link:625Please respect copyright.PENANAJVUInp0yTE
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio625Please respect copyright.PENANAkJo26RQzoX
625Please respect copyright.PENANAui4wdsVDDY
625Please respect copyright.PENANAYyfT1MZVDd
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。625Please respect copyright.PENANAi8oMaroAY0
625Please respect copyright.PENANA9NfQdip2xG
Ref1:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387900/625Please respect copyright.PENANAN8RHnJpAsi
Ref2:https://science.sciencemag.org/content/371/6532/eabc4346625Please respect copyright.PENANAC7roW3sQXm
Ref3:https://pubmed.ncbi.nlm.nih.gov/18600221/625Please respect copyright.PENANAVE6Au1DUQA
Ref4:https://www.ncbi.nlm.nih.gov/books/NBK421/625Please respect copyright.PENANANeAuL5duvz
Ref5:https://science.sciencemag.org/content/371/6532/887625Please respect copyright.PENANAFJzj80do3o
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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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