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。612Please respect copyright.PENANAajtTk52qja612Please respect copyright.PENANAAqfgH25Piz
612Please respect copyright.PENANAdQLw16BAOH
你又有沒有想過,心臟究竟係「食咩大㗎呢」?612Please respect copyright.PENANAeWvdBXaFfi
612Please respect copyright.PENANAuGuO8bb2K8
(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。612Please respect copyright.PENANAV1iHcFNAsq612Please respect copyright.PENANA5eIF4gHHEF
612Please respect copyright.PENANAQpUTuPTjmg
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)。612Please respect copyright.PENANAAeAlc1RNw7
612Please respect copyright.PENANARt1tC62DCL
(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。612Please respect copyright.PENANAhnvevZBbIa612Please respect copyright.PENANATL1UzG27kj
612Please respect copyright.PENANAT2JTZ9t1AK
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,612Please respect copyright.PENANAzNS8vNjeGb
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。612Please respect copyright.PENANAX7ULPzHh76
612Please respect copyright.PENANADtGtqLaife
某程度上可以說心臟是「食脂肪大的」。612Please respect copyright.PENANAFTghLEHeqA
612Please respect copyright.PENANA8jUK75ek3k
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。612Please respect copyright.PENANAJsssuWgKDl
612Please respect copyright.PENANA88fkgEXMQE
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。612Please respect copyright.PENANAtJz5CajlVV
612Please respect copyright.PENANAdEEsuOyzt3
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。612Please respect copyright.PENANAW1bQT7XDHf
612Please respect copyright.PENANAPkaJOQxA8D
612Please respect copyright.PENANAbIHQ3kKIPt
612Please respect copyright.PENANAcGVLwOAnoT
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。612Please respect copyright.PENANA2IA9qEDfMp
612Please respect copyright.PENANAF6Lpbc7u4t
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/toc612Please respect copyright.PENANA8fXnqd9M55
612Please respect copyright.PENANAYcfqc5Co8W
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。612Please respect copyright.PENANASDwVWqc1OS
612Please respect copyright.PENANAeEJDoL5ea6
Link:612Please respect copyright.PENANAdhtJM1vpwg
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio612Please respect copyright.PENANADPRtCHj7Yz
612Please respect copyright.PENANAUQekr4nH82
612Please respect copyright.PENANA9QKxY9iXmH
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。612Please respect copyright.PENANAMrY0r8HnVy
https://www.instagram.com/potatopigtongue/612Please respect copyright.PENANAVCurg4UXh4
612Please respect copyright.PENANApl9BenxswY
Ref1:https://science.sciencemag.org/content/370/6514/364612Please respect copyright.PENANAPuGdQbcwSy