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。578Please respect copyright.ＰＥＮＡＮＡUb2x3rVQPe
578Please respect copyright.ＰＥＮＡＮＡ6OSrTwXcqd
578Please respect copyright.ＰＥＮＡＮＡJXOqDp9dPF
你又有沒有想過，心臟究竟係「食咩大㗎呢」?578Please respect copyright.ＰＥＮＡＮＡegrcNyZQzX
578Please respect copyright.ＰＥＮＡＮＡwV7H1v8CFf
(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。578Please respect copyright.ＰＥＮＡＮＡ3bEngC8wre
578Please respect copyright.ＰＥＮＡＮＡo1BMXT9i3t
578Please respect copyright.ＰＥＮＡＮＡIYg0yRTaPz
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)。578Please respect copyright.ＰＥＮＡＮＡ7kxYthYPzw
578Please respect copyright.ＰＥＮＡＮＡLBbSJ889zf
(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。578Please respect copyright.ＰＥＮＡＮＡFKUGJOQSmJ
578Please respect copyright.ＰＥＮＡＮＡPwOHFoNMX9
578Please respect copyright.ＰＥＮＡＮＡSRPL5ADjx1
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，578Please respect copyright.ＰＥＮＡＮＡGpn3OFlQ5S
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。578Please respect copyright.ＰＥＮＡＮＡ2edRu9PAdA
578Please respect copyright.ＰＥＮＡＮＡd98oGCfjCU
某程度上可以說心臟是「食脂肪大的」。578Please respect copyright.ＰＥＮＡＮＡzD4vxBckBA
578Please respect copyright.ＰＥＮＡＮＡT4DUA78Ebk
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。578Please respect copyright.ＰＥＮＡＮＡgKNNgwgM2x
578Please respect copyright.ＰＥＮＡＮＡxEW5u1t90R
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。578Please respect copyright.ＰＥＮＡＮＡkz4kUY1yST
578Please respect copyright.ＰＥＮＡＮＡpMWVXelO1U
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。578Please respect copyright.ＰＥＮＡＮＡQEn2bm1l1G
578Please respect copyright.ＰＥＮＡＮＡdZnxW43BpP
578Please respect copyright.ＰＥＮＡＮＡOqGteseI9p
578Please respect copyright.ＰＥＮＡＮＡWiXJBITNqe
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。578Please respect copyright.ＰＥＮＡＮＡV3GOXpe2dh
578Please respect copyright.ＰＥＮＡＮＡxAm6AlTdMt
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/toc578Please respect copyright.ＰＥＮＡＮＡd6BBBPpQTn
578Please respect copyright.ＰＥＮＡＮＡJq2zjBXudK
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。578Please respect copyright.ＰＥＮＡＮＡKcM0nMXp50
578Please respect copyright.ＰＥＮＡＮＡKwIQdGAPJz
Link:578Please respect copyright.ＰＥＮＡＮＡBK2UBOVtLZ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio578Please respect copyright.ＰＥＮＡＮＡtCJjOzfXst
578Please respect copyright.ＰＥＮＡＮＡLbtHBVhLIg
578Please respect copyright.ＰＥＮＡＮＡxwlvfK6f8b
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。578Please respect copyright.ＰＥＮＡＮＡwUj1OWbzz7
https://www.instagram.com/potatopigtongue/578Please respect copyright.ＰＥＮＡＮＡS82s16mfTA
578Please respect copyright.ＰＥＮＡＮＡvy2HrRMXoC
Ref1:https://science.sciencemag.org/content/370/6514/364578Please respect copyright.ＰＥＮＡＮＡvTZlPcU2NH

ns3.17.152.174da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章