科普專欄–薯不揀單 - 三十秒科學–長頸鹿的奧袐

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。467Please respect copyright.ＰＥＮＡＮＡtpTpQCdsr4
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（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。467Please respect copyright.ＰＥＮＡＮＡGMDvmMikzP
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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。467Please respect copyright.ＰＥＮＡＮＡnzwmKOBplD
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若然調節失衡的話，很大機會對其他器官構成威脅及傷害。467Please respect copyright.ＰＥＮＡＮＡylVBGW1G4e
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（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。467Please respect copyright.ＰＥＮＡＮＡ2VixGDc2cA
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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。467Please respect copyright.ＰＥＮＡＮＡ2tEDkLNagg
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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。467Please respect copyright.ＰＥＮＡＮＡAF8yWpOKP1
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（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。467Please respect copyright.ＰＥＮＡＮＡyd31gcgbiq
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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。467Please respect copyright.ＰＥＮＡＮＡNnIQtOsg05
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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。467Please respect copyright.ＰＥＮＡＮＡt9HldYrFTz
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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/toc467Please respect copyright.ＰＥＮＡＮＡ3pq6Swy2iU
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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。467Please respect copyright.ＰＥＮＡＮＡdEhnARjlyG
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio467Please respect copyright.ＰＥＮＡＮＡiTcRRltCmr
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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。467Please respect copyright.ＰＥＮＡＮＡ7aJGhttem3
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Ref1:https://advances.sciencemag.org/content/7/12/eabe9459467Please respect copyright.ＰＥＮＡＮＡVxj6PtkcRe

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