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。422Please respect copyright.PENANA2leyP75Rmp422Please respect copyright.PENANA1c5OtGgEKC
422Please respect copyright.PENANAOSmTLgeecw
你又有沒有想過,心臟究竟係「食咩大㗎呢」?422Please respect copyright.PENANA4RUnNMZBn1
422Please respect copyright.PENANAwWnF0u6yj6
(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。422Please respect copyright.PENANAShJsWCQPHI422Please respect copyright.PENANAmkhEcaRJJi
422Please respect copyright.PENANAMbv64KmV0A
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)。422Please respect copyright.PENANAhOYHT3RNyS
422Please respect copyright.PENANASnORzXB86z
(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。422Please respect copyright.PENANARnkZSyCUE4422Please respect copyright.PENANAYvZvp8L2An
422Please respect copyright.PENANAshbyFY5qVN
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,422Please respect copyright.PENANAUynV9b8oFY
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。422Please respect copyright.PENANAVbmkq0FGVk
422Please respect copyright.PENANAlTBj8axY7e
某程度上可以說心臟是「食脂肪大的」。422Please respect copyright.PENANAGatHYxDwO3
422Please respect copyright.PENANA51CIANBPPj
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。422Please respect copyright.PENANA5qMGx4Upau
422Please respect copyright.PENANAQexdSDi2qb
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。422Please respect copyright.PENANAPFSvEjFe33
422Please respect copyright.PENANAIlwt6yqtec
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。422Please respect copyright.PENANAAwkdApWdKF
422Please respect copyright.PENANA4ubSvxsA7p
422Please respect copyright.PENANAnBXwnD3Qd0
422Please respect copyright.PENANAWnIFsx4lfz
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。422Please respect copyright.PENANAE1O58ltCAE
422Please respect copyright.PENANAbZ8gn8Ajzk
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/toc422Please respect copyright.PENANA4Lipq7j1s5
422Please respect copyright.PENANACa8ui0KLwB
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。422Please respect copyright.PENANAHuu5Ae3g9u
422Please respect copyright.PENANAHey48cQyJn
Link:422Please respect copyright.PENANANrMjzXU8QJ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio422Please respect copyright.PENANAig9qNzWMfW
422Please respect copyright.PENANAfOpJlb2mKS
422Please respect copyright.PENANAsTfzkpQwZG
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。422Please respect copyright.PENANAcGhkgjj5VS
https://www.instagram.com/potatopigtongue/422Please respect copyright.PENANAWKeIV9A8GF
422Please respect copyright.PENANAGq1dp1SoC1
Ref1:https://science.sciencemag.org/content/370/6514/364422Please respect copyright.PENANAddInlqE8U9