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。391Please respect copyright.PENANAHs2HKsFWlQ
391Please respect copyright.PENANAnHJcSVN2hF
391Please respect copyright.PENANAyAv6oTwGnn
你又有沒有想過,心臟究竟係「食咩大㗎呢」?391Please respect copyright.PENANARhkgoK4uOX
391Please respect copyright.PENANAZf3NKgqYln
(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。391Please respect copyright.PENANAxEOmmGrqKD
391Please respect copyright.PENANAAB9NTO1Ald
391Please respect copyright.PENANAD2ggaRsQus
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)。391Please respect copyright.PENANAXYtfmTDSlk
391Please respect copyright.PENANAVKLjr1PAji
(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。391Please respect copyright.PENANAHQFtJhms8n
391Please respect copyright.PENANAI1gxpZ55Wi
391Please respect copyright.PENANAV1uN3YZ4pj
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,391Please respect copyright.PENANAe7iSFLYtEF
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。391Please respect copyright.PENANArJVxXKkZ76
391Please respect copyright.PENANAYN8jvlbEA2
某程度上可以說心臟是「食脂肪大的」。391Please respect copyright.PENANA27qHNLty1J
391Please respect copyright.PENANAGN0ZOsCPFR
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。391Please respect copyright.PENANAxcTkJClqHL
391Please respect copyright.PENANAbXCLfEEk56
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。391Please respect copyright.PENANAHEE2ihAHch
391Please respect copyright.PENANAGyPWSenbh5
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。391Please respect copyright.PENANApRrebqwisL
391Please respect copyright.PENANAQYbM1HterS
391Please respect copyright.PENANAgLuB5QEENK
391Please respect copyright.PENANA07KwjmqBaW
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。391Please respect copyright.PENANAB3dBE6Bav9
391Please respect copyright.PENANAst8BqGd4wo
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/toc391Please respect copyright.PENANAyTkr4T9OzA
391Please respect copyright.PENANA3BB3cKzQg6
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。391Please respect copyright.PENANA7iqpDtB3l1
391Please respect copyright.PENANA5XED6e8d4m
Link:391Please respect copyright.PENANA809BHnMkCn
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio391Please respect copyright.PENANAeKokUoFQ9k
391Please respect copyright.PENANAqxCm0uINxa
391Please respect copyright.PENANA5xIku0WXSp
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。391Please respect copyright.PENANAvPqMwcoF3t
https://www.instagram.com/potatopigtongue/391Please respect copyright.PENANAF79gnRyekh
391Please respect copyright.PENANAD8peRRLM9l
Ref1:https://science.sciencemag.org/content/370/6514/364391Please respect copyright.PENANAi1Fjc3FHzZ
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科普專欄–薯不揀單
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #82
深入淺出–日常的心臟究竟攝取哪一種營養
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