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。483Please respect copyright.PENANAVqKIjlOkiM483Please respect copyright.PENANAyEzOTZVmAA
483Please respect copyright.PENANAWKraSVVZON
(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。483Please respect copyright.PENANAbs4XOdS9c8483Please respect copyright.PENANARtrKkBNdzG
483Please respect copyright.PENANAwBWEld7kWk
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。483Please respect copyright.PENANAIleplq9kNO
483Please respect copyright.PENANAUTAe0boaE7
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。483Please respect copyright.PENANAXUv56CK5Tj
483Please respect copyright.PENANAAyYT8gN1SA
483Please respect copyright.PENANAooOKdHx9Eh
(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。483Please respect copyright.PENANAWmBT0suzpv483Please respect copyright.PENANAbc4XDls4wQ
483Please respect copyright.PENANA3ZhvBEZouz
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。483Please respect copyright.PENANAOvx2Gsb4GS
483Please respect copyright.PENANA5qH4437wGX
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。483Please respect copyright.PENANAKZLRZZemPS
483Please respect copyright.PENANAT6uwNVsJXp
(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。483Please respect copyright.PENANA8qGe0vBScf483Please respect copyright.PENANAJ74ysKBoDH
483Please respect copyright.PENANA9pgNWK951c
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。483Please respect copyright.PENANAo65kf8ezcf
483Please respect copyright.PENANAU6fk2HnyAa
483Please respect copyright.PENANARF8CTF3cTw
483Please respect copyright.PENANAX8wRxDGTo6
483Please respect copyright.PENANA7WdX4dAvhK
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。483Please respect copyright.PENANAoyDuay4XxW
483Please respect copyright.PENANAe38gVopu98
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/toc483Please respect copyright.PENANAifUhAukOdN
483Please respect copyright.PENANAIO3Eosqdx2
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。483Please respect copyright.PENANADyZBASuMvC
483Please respect copyright.PENANAN0bdU3jbAV
Link:483Please respect copyright.PENANAhdSQKocQ6u
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio483Please respect copyright.PENANAUXnM0c7GPN
483Please respect copyright.PENANAV2aSOzg7Zy
483Please respect copyright.PENANA4RXYwTOr2R
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。483Please respect copyright.PENANApj05rDxwj5
483Please respect copyright.PENANA4vFQY59Fss
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459483Please respect copyright.PENANAQ5sUzPTXAe