長頸鹿是陸上最高的生物,其身體構造亦因此有著與眾不同的地方。306Please respect copyright.PENANAMFMbfy8y2s306Please respect copyright.PENANA4EleEJZYNT
306Please respect copyright.PENANAKC7aBRUzet
(圖2)以血液循環系統方面來說,牠的心臟必須要抵受比其他動物更高的壓力才能把血液輸送到腦部裡頭。306Please respect copyright.PENANAnwuAO6GUjd306Please respect copyright.PENANArRP6WzdGqo
306Please respect copyright.PENANAoamaY2w0kL
同時間,牠亦必須配備完善的機制來調節仰頭吃葉或低頭飲水所帶來的急劇血壓轉變。306Please respect copyright.PENANAhtbKTMyWQ3
306Please respect copyright.PENANAiBT26fshiI
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。306Please respect copyright.PENANAmilXedrCCY
306Please respect copyright.PENANAaon32QwWTW
306Please respect copyright.PENANARDIjDHZkKh
(圖3)研究發現,長頸鹿的FGFRL1基因出現7道沒能在其他動物(包括人類)尋覓得到的變異。306Please respect copyright.PENANAM4Sz5fTYbS306Please respect copyright.PENANAL40sd9vmtQ
306Please respect copyright.PENANAafdBtXhsH8
有科學家把老鼠的FGFRL1基因轉換成長頸鹿的版本,並為老鼠們注射會引致高血壓的藥物。306Please respect copyright.PENANA1au8jcveN5
306Please respect copyright.PENANA6lmW2QyPiB
正常老鼠的上下壓在藥物影響下錄得了顯著上升,但擁有長頸鹿版本的老鼠其上下壓並沒有出現顯著的上升。306Please respect copyright.PENANAPCWwwCRFbz
306Please respect copyright.PENANATKjSLaS7aM
(圖4)最為神奇的是,正常老鼠在藥物的影響下所出現的心肌纖維化徵狀,並沒有出現在長頸鹿版本的老鼠身上。306Please respect copyright.PENANAKEKE7Cok2y306Please respect copyright.PENANAEcKxXliR7N
306Please respect copyright.PENANAijOjwYUhHp
科學家正在嘗試拆解長頸鹿FGFRL1基因版本對心臟等方面所影響的機制,若果能透徹亦剖析整套機制,或許可用作建構抵禦高血壓或其他心臟問題的藥物。306Please respect copyright.PENANA05H5AnK8Jv
306Please respect copyright.PENANA5TCgBo3LAf
306Please respect copyright.PENANAgQ7HSFV70j
306Please respect copyright.PENANAh71A2mMkgT
306Please respect copyright.PENANA2YvS49UQq7
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。306Please respect copyright.PENANAevthUb4FaR
306Please respect copyright.PENANAkUy7z8ZsKn
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/toc306Please respect copyright.PENANA1uBcbZsYrb
306Please respect copyright.PENANAuKLAuniGgD
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。306Please respect copyright.PENANAZhe2y8gVEt
306Please respect copyright.PENANAzHeIcgY6AR
Link:306Please respect copyright.PENANAUDygSuj3PC
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio306Please respect copyright.PENANAtFg4OnWwSj
306Please respect copyright.PENANAYPBcZSgqzu
306Please respect copyright.PENANAmizNVHZZYA
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。306Please respect copyright.PENANAOeQe7ztSLv
306Please respect copyright.PENANAEDRdIZFlO9
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459306Please respect copyright.PENANACXP2kv9IDv
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科普專欄–薯不揀單
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薯仔聞茱莉
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ISSUE #185
三十秒科學–長頸鹿的奧袐
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