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。443Please respect copyright.PENANAX38hh5buYN443Please respect copyright.PENANAyzyqtCFYUB
443Please respect copyright.PENANASYYLjOrNSz
(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。443Please respect copyright.PENANAvemyjWrnbX443Please respect copyright.PENANAWSqLcS5f2N
443Please respect copyright.PENANAOE0KpMAhSr
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。443Please respect copyright.PENANA8HEmZt1ajt
443Please respect copyright.PENANAukY1fgwoFv
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。443Please respect copyright.PENANASMY0PBoiFl
443Please respect copyright.PENANAj0NXByLrWC
443Please respect copyright.PENANAeCxeZrTwvv
(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。443Please respect copyright.PENANAj4gzJgrx9t443Please respect copyright.PENANALI00zjnJdJ
443Please respect copyright.PENANAQ96HfyNzcj
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。443Please respect copyright.PENANAUr478IBFjE
443Please respect copyright.PENANA8qOJZSlM7W
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。443Please respect copyright.PENANAdT5VnrKSbp
443Please respect copyright.PENANAOpiUFLx2dF
(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。443Please respect copyright.PENANAZ8drAB4xQw443Please respect copyright.PENANA706coCn7Bv
443Please respect copyright.PENANAw3KvgoVYqC
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。443Please respect copyright.PENANAQOErmHMIrA
443Please respect copyright.PENANA5TCrsHE3F0
443Please respect copyright.PENANA2NyNBLB9hz
443Please respect copyright.PENANA1q2W3DxRRu
443Please respect copyright.PENANAkF1fA3ywUI
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。443Please respect copyright.PENANALjNiGan30O
443Please respect copyright.PENANAQQQrn3xzSc
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/toc443Please respect copyright.PENANAtLu7wXywZh
443Please respect copyright.PENANA9JFkx3TieQ
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。443Please respect copyright.PENANAVY6r7gtlz9
443Please respect copyright.PENANA21U8I3G2Y0
Link:443Please respect copyright.PENANA5XP5P2GQZj
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio443Please respect copyright.PENANAP7vyYIJuqN
443Please respect copyright.PENANAHedijgS0ro
443Please respect copyright.PENANANs9A7uv9Cv
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。443Please respect copyright.PENANARDOffBFMIT
443Please respect copyright.PENANAi8cEzzrpbY
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459443Please respect copyright.PENANA7zQ8wm7IEl