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。493Please respect copyright.PENANACtAdIaeQ19493Please respect copyright.PENANAl3j6M51QEO
493Please respect copyright.PENANAVqozrL43lf
(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。493Please respect copyright.PENANAxf5LgxBJJZ493Please respect copyright.PENANAA2A9WWMclw
493Please respect copyright.PENANAoEfqsbNrts
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。493Please respect copyright.PENANAl9xY45igFm
493Please respect copyright.PENANARJQQGSnMPA
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。493Please respect copyright.PENANA6AGpemas2r
493Please respect copyright.PENANAFDoAHS8GGG
493Please respect copyright.PENANA5VY44wPXJ2
(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。493Please respect copyright.PENANAEESTwvL6rt493Please respect copyright.PENANAfwnfV9F2LW
493Please respect copyright.PENANAUPNtC1KXyO
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。493Please respect copyright.PENANAna9lzmEv4Y
493Please respect copyright.PENANA9DrRyUfBAz
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。493Please respect copyright.PENANAIvFCrAuYER
493Please respect copyright.PENANAUVbrKovCnh
(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。493Please respect copyright.PENANAgYM8TruKOh493Please respect copyright.PENANA7M1WXRTVoo
493Please respect copyright.PENANAVjPAKB0A8z
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。493Please respect copyright.PENANA8lO9WelyZ1
493Please respect copyright.PENANAwIBaYSc9Dd
493Please respect copyright.PENANAlaWbeHoboz
493Please respect copyright.PENANArXg9JuBY3y
493Please respect copyright.PENANAGoQaJqMHzh
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。493Please respect copyright.PENANAQehR1Zrs0b
493Please respect copyright.PENANAoJEV2awqGz
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/toc493Please respect copyright.PENANAOtEXZPzJ7h
493Please respect copyright.PENANATgHzbKrRq1
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。493Please respect copyright.PENANAhU0hHeLAhk
493Please respect copyright.PENANA6JCutJ9PMv
Link:493Please respect copyright.PENANAa4K6JL0ZoZ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio493Please respect copyright.PENANAFRvwyBkFPn
493Please respect copyright.PENANAk4CXBTpsW2
493Please respect copyright.PENANA4YevFCabib
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。493Please respect copyright.PENANA4von6d53zF
493Please respect copyright.PENANA91N9K8HQmG
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459493Please respect copyright.PENANAXpOWNDM05u