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。464Please respect copyright.PENANAdkWYQtKIHJ464Please respect copyright.PENANAlVLWWqNhnE
464Please respect copyright.PENANAcPrVnkv39j
(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。464Please respect copyright.PENANAbIfw989dY2464Please respect copyright.PENANA3QkoUiaOGD
464Please respect copyright.PENANAOrVK6cegUA
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。464Please respect copyright.PENANAhm5bpifmWy
464Please respect copyright.PENANAmhynamNmjf
若然調節失衡的話,很大機會對其他器官構成威脅及傷害。464Please respect copyright.PENANAcFDJ8X56KS
464Please respect copyright.PENANAH7kkyv5jrY
464Please respect copyright.PENANAsNiNKCrPZw
(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。464Please respect copyright.PENANA4Kp3ReYSBx464Please respect copyright.PENANA6t0FZI6583
464Please respect copyright.PENANAY1hNjZPl6T
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。464Please respect copyright.PENANAYTUaiSIlrp
464Please respect copyright.PENANAZPcoBsWrXz
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。464Please respect copyright.PENANAw1seGO1eHd
464Please respect copyright.PENANAcc9zrF2eFY
(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。464Please respect copyright.PENANAl3duBWsLHX464Please respect copyright.PENANADyR5WGbho7
464Please respect copyright.PENANAeV0VduC8qr
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。464Please respect copyright.PENANA4YZP6DWUsI
464Please respect copyright.PENANAxRcm1M3KRD
464Please respect copyright.PENANAFwHt5vUS8r
464Please respect copyright.PENANAirBZ9nU8lO
464Please respect copyright.PENANAyyBHunvv3x
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。464Please respect copyright.PENANARv4XQI4jqv
464Please respect copyright.PENANAqGubt3yPjj
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/toc464Please respect copyright.PENANAvWm0uwVVLr
464Please respect copyright.PENANAu3i0S2hIRk
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。464Please respect copyright.PENANA0OVN5KoSUF
464Please respect copyright.PENANARRbAy065d2
Link:464Please respect copyright.PENANAE6JL3m2cig
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio464Please respect copyright.PENANAUmhlZnUA4h
464Please respect copyright.PENANAcTaXEK0EbN
464Please respect copyright.PENANA674dyF5Bz0
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。464Please respect copyright.PENANAb38J5tVczY
464Please respect copyright.PENANAwUNPdlscVs
Ref1:https://advances.sciencemag.org/content/7/12/eabe9459464Please respect copyright.PENANAmtehNTsBY8
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科普專欄–薯不揀單
Author:
薯仔聞茱莉

ISSUE #185
三十秒科學–長頸鹿的奧袐
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