科普專欄–薯不揀單 - 深入淺出–日常的心臟究竟攝取哪一種營養

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。563Please respect copyright.ＰＥＮＡＮＡHNZUabawuf
563Please respect copyright.ＰＥＮＡＮＡYqjsrr7cXE
563Please respect copyright.ＰＥＮＡＮＡZQqMKXOpZV
你又有沒有想過，心臟究竟係「食咩大㗎呢」?563Please respect copyright.ＰＥＮＡＮＡI0oOJOq5yf
563Please respect copyright.ＰＥＮＡＮＡkMX9xOVxLp
(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。563Please respect copyright.ＰＥＮＡＮＡFz6EcKeaUt
563Please respect copyright.ＰＥＮＡＮＡNPgGRkdyYd
563Please respect copyright.ＰＥＮＡＮＡpQHAnfmhu7
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)。563Please respect copyright.ＰＥＮＡＮＡZgFyQoMs9e
563Please respect copyright.ＰＥＮＡＮＡkS9Rq352ga
(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。563Please respect copyright.ＰＥＮＡＮＡYOjAYBslXH
563Please respect copyright.ＰＥＮＡＮＡOhYfXHZ66J
563Please respect copyright.ＰＥＮＡＮＡ8qzjjOyasD
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，563Please respect copyright.ＰＥＮＡＮＡOMY0cimx2g
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。563Please respect copyright.ＰＥＮＡＮＡB83I5k6rUS
563Please respect copyright.ＰＥＮＡＮＡvyn9ESpXHc
某程度上可以說心臟是「食脂肪大的」。563Please respect copyright.ＰＥＮＡＮＡDQS3qmXxko
563Please respect copyright.ＰＥＮＡＮＡgPMj2CUQX6
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。563Please respect copyright.ＰＥＮＡＮＡDpVWcftKXT
563Please respect copyright.ＰＥＮＡＮＡ1x0VdsFALa
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。563Please respect copyright.ＰＥＮＡＮＡFeUlBHQkUO
563Please respect copyright.ＰＥＮＡＮＡvgTiEpDOrK
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。563Please respect copyright.ＰＥＮＡＮＡ832FkwLwMM
563Please respect copyright.ＰＥＮＡＮＡY1jElXRsCl
563Please respect copyright.ＰＥＮＡＮＡK5IKn5cYXA
563Please respect copyright.ＰＥＮＡＮＡUTP9qG1BPu
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。563Please respect copyright.ＰＥＮＡＮＡzLZcgn6nYw
563Please respect copyright.ＰＥＮＡＮＡiOAmOyD1mb
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/toc563Please respect copyright.ＰＥＮＡＮＡSyPbguzeIS
563Please respect copyright.ＰＥＮＡＮＡWVwJWRHvqc
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。563Please respect copyright.ＰＥＮＡＮＡJydhmJZede
563Please respect copyright.ＰＥＮＡＮＡWCCqlrv7KB
Link:563Please respect copyright.ＰＥＮＡＮＡDJqowu3dvi
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio563Please respect copyright.ＰＥＮＡＮＡL8q9RtNBbn
563Please respect copyright.ＰＥＮＡＮＡcemJvZMwNL
563Please respect copyright.ＰＥＮＡＮＡZmrcgjWULm
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。563Please respect copyright.ＰＥＮＡＮＡElf5r45POm
https://www.instagram.com/potatopigtongue/563Please respect copyright.ＰＥＮＡＮＡsluLoJBmhy
563Please respect copyright.ＰＥＮＡＮＡ2iNu4JzOZ9
Ref1:https://science.sciencemag.org/content/370/6514/364563Please respect copyright.ＰＥＮＡＮＡHow8Uvhzs5

ns18.191.41.29da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章