由我們出世一刻起,心臟便不辭勞苦工作,將血液送至全身,沒有休息的一刻。604Please respect copyright.PENANA56CmSIqTK3604Please respect copyright.PENANAbQB5CAG2lq
604Please respect copyright.PENANAVgBIWg2kyJ
你又有沒有想過,心臟究竟係「食咩大㗎呢」?604Please respect copyright.PENANAnz9jMeJYzP
604Please respect copyright.PENANA6DLgFKIbkS
(圖2)有科學家為了解答這個問題,找來110個病人(87個心臟正常,23個心臟出現問題),請示測試者禁食一晚,然後再進行全身麻醉。604Please respect copyright.PENANAdMehdiYuWd604Please respect copyright.PENANAQUM8SthboE
604Please respect copyright.PENANADVkFgb13V4
在麻醉期間的1小時裡,分別抽取對應部份血管的血液,從而計算出心臟及腳部的新陳代謝狀況(Ref1)。604Please respect copyright.PENANAOePR7Eq9En
604Please respect copyright.PENANAWxU33hC4iv
(圖3)綜合所有證據顯示,心臟同腳部均會大量吸收Ketone Bodies,Acetate及Glutamate。604Please respect copyright.PENANAsEoYvp88GR604Please respect copyright.PENANAve9QO3RqMk
604Please respect copyright.PENANAkCE2YSN3jM
有趣的是,腳部會選擇性地吸收飽和脂肪酸,而放出非飽和脂肪酸,604Please respect copyright.PENANAeGuR3022fZ
但心臟莫論飽和與否均會全數吸收,其中脂肪酸更成為了它能量來源70%有多。604Please respect copyright.PENANAlzdW8gJIRb
604Please respect copyright.PENANAlXf1SbAqOF
某程度上可以說心臟是「食脂肪大的」。604Please respect copyright.PENANAcT5PuQbm5j
604Please respect copyright.PENANA6dSM96Vs9f
另外,心臟同腳部均有釋放氨基酸的跡象,顯示細胞的蛋白質一直處於分解狀態,而心臟其速度比腳部快10倍有多。604Please respect copyright.PENANAIiLpl8REnm
604Please respect copyright.PENANACEeimPDAFI
對比健康心臟及心臟出現問題的病人,出現問題的心臟會吸取更多的Ketone Bodies及增加氨基酸的釋放數量。604Please respect copyright.PENANAAd9mrGmElO
604Please respect copyright.PENANAlJTpNA7UvT
究竟吸取更多的Ketone Bodies和增加氨基酸釋放量是為了阻擋心臟出現進一步惡化,還是因為出現問題所致而成,這方面還需要進一步的研究。604Please respect copyright.PENANAMJfLLfhCg2
604Please respect copyright.PENANAmEMYtUiA0l
604Please respect copyright.PENANAfVCAh7rBvy
604Please respect copyright.PENANAUIg1thd0l0
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。604Please respect copyright.PENANAgUXzuNVvts
604Please respect copyright.PENANAm0Jk1Vuocb
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/toc604Please respect copyright.PENANAOsNwRnBRPv
604Please respect copyright.PENANAo0egquLbCy
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。604Please respect copyright.PENANAelrUbUp7zD
604Please respect copyright.PENANAXufEP7nkux
Link:604Please respect copyright.PENANAp1FqnOYqyi
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio604Please respect copyright.PENANAE3DO4MufXZ
604Please respect copyright.PENANABtDnRWMktP
604Please respect copyright.PENANAFO2j7Xr8Yi
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。604Please respect copyright.PENANA8eTnjSMvxn
https://www.instagram.com/potatopigtongue/604Please respect copyright.PENANAyy8S6ZbRC7
604Please respect copyright.PENANAZ7OiO6OjzD
Ref1:https://science.sciencemag.org/content/370/6514/364604Please respect copyright.PENANAHuzqqbYMCL
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #82
深入淺出–日常的心臟究竟攝取哪一種營養
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