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。489Please respect copyright.PENANA80aDU6YEcX489Please respect copyright.PENANAgU8yVzcdxN
489Please respect copyright.PENANAMb2JPTc93A
(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。489Please respect copyright.PENANA0qDsAPzx81489Please respect copyright.PENANAyBfcQ4uXRA
489Please respect copyright.PENANAVhM5179YE9
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。489Please respect copyright.PENANAUYxx4lMZgv
489Please respect copyright.PENANAjVbgDGaUzy
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。489Please respect copyright.PENANASGfp71aQoR
489Please respect copyright.PENANA37hYdRMWq9
489Please respect copyright.PENANAW5UjbuNebH
(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。489Please respect copyright.PENANAakVBaZ4xs3489Please respect copyright.PENANARGjlFMoQL1
489Please respect copyright.PENANANVGYdKntVq
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。489Please respect copyright.PENANANNJqVNe2NQ
489Please respect copyright.PENANASmRb7SUuJ8
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。489Please respect copyright.PENANAHYzDGyAQ46
489Please respect copyright.PENANAPX9kw2ht1C
(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。489Please respect copyright.PENANAT3LSiCRlPZ489Please respect copyright.PENANAiY5mGFfhlb
489Please respect copyright.PENANAuPQ81QV6WC
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。489Please respect copyright.PENANAlhXQ1ZRGxl
489Please respect copyright.PENANApV9xYDFihQ
489Please respect copyright.PENANAVpMDwBPr8L
489Please respect copyright.PENANAFqb4duMMVf
489Please respect copyright.PENANARIBQB7FB8R
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。489Please respect copyright.PENANA5ID4H4NrcI
489Please respect copyright.PENANA2dSrKZ8LVu
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/toc489Please respect copyright.PENANAXWW51tz0Ws
489Please respect copyright.PENANAU2QtMa1t2y
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。489Please respect copyright.PENANAKNRzxnCoAb
489Please respect copyright.PENANA9pXUN42b6g
Link:489Please respect copyright.PENANAeNhD3W2J6y
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio489Please respect copyright.PENANAFKwAYYdIgq
489Please respect copyright.PENANATK1ie2sai9
489Please respect copyright.PENANAG8tXktJRBF
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。489Please respect copyright.PENANAjg2DSoW7T7
489Please respect copyright.PENANA3vrq6iaPsr
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459489Please respect copyright.PENANA3tMffIvU1o