上集略述了心臟肥大與心臟衰竭的關連,今集將會講述一道暫緩心臟由肥大演變成衰竭的研究。291Please respect copyright.PENANA0Oi9WEqdJM
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上集:https://lih.kg/gOrCdS291Please respect copyright.PENANAYrgXkYr0hX
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(圖2)研究發現,當利用縫線手法引致心臟處於肥大狀態的時候,一隻名為GRK5的蛋白質會從心肌細胞的內部轉移到細胞核裡頭。291Please respect copyright.PENANABl22udOIOq
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(圖3)當GRK5進入細胞核後,它便會依靠圖中其紅色的部份與其他蛋白質(橙色)互動,因而改變其自身的形狀,發揮一系列的功效引致心臟肥大。291Please respect copyright.PENANANztxRS9nTo
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見狀,科學家便特意單獨注入其紅色部份到細胞核,目的就是想透過紅色部份的霸佔,阻截完整的GRK5蛋白質與其他蛋白質(橙色)互動,使其功效喪失。291Please respect copyright.PENANAYZbThsKp7c
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形象化來說,就是某勢力派人霸佔旁聽座位,讓其他人士無法入座。291Please respect copyright.PENANAFEwGmsIxm7
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(圖4)縫線後所引起的心臟肥大,並沒有出現在注入紅色部份蛋白質的老鼠心臟裡頭。291Please respect copyright.PENANArRn2iIkePE
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最為重要的是,心臟肥大所引起的心肌纖維化(藍色箭嘴),並沒有能夠在注入紅色部份蛋白質的老鼠心臟裡頭找得到。291Please respect copyright.PENANATQuvseVaSQ
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換句話說,這GRK5的紅色部份,非常之有潛質可以發展成為抵抗血壓過高引致的心臟肥大藥物。291Please respect copyright.PENANAVEFBqjpN69
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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。291Please respect copyright.PENANAiLl9AY9Hru
291Please respect copyright.PENANAY9HFLQug1N
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/toc291Please respect copyright.PENANALqIRfIpFSK
291Please respect copyright.PENANAyKWJ3kb35D
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。291Please respect copyright.PENANAWjxPo3gZF1
291Please respect copyright.PENANASpfNdeDDJx
Link:291Please respect copyright.PENANAzFkyjG2xko
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio291Please respect copyright.PENANAr6Gb5PNWEr
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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。291Please respect copyright.PENANAG9r4Z13h62
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Ref1:https://stke.sciencemag.org/content/14/676/eabb5968291Please respect copyright.PENANAhzzgzwW0xI
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #194
三十秒科學–心臟肥大(2)
LIKES 1
READS 287
BOOKMARKS 148
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