我們身體的細胞,會否作出多餘或者浪費的事情呢?533Please respect copyright.PENANApbPvynslg7533Please respect copyright.PENANA0PuFmRk4g1
533Please respect copyright.PENANAiA8nhFVh2L
(圖2)超級簡化來說,我們細胞內含的粒線體能夠將我們所攝取的營養經由一系列的過程轉化成為ATP。533Please respect copyright.PENANAiqHgPCWrCT533Please respect copyright.PENANAgcj6FXUyTL
533Please respect copyright.PENANA5EDi7qcnjy
ATP能夠為細胞提供所需的能源,我們的手腳之所以可以伸縮自如,全賴身體肌肉細胞等耗用ATP才能達成。533Please respect copyright.PENANAW8xXdImQ9K
533Please respect copyright.PENANA4iU0i4FTVU
(圖3)而唯獨在專門製造熱能的啡色脂肪細胞粒線體裡頭,內裡有一隻名為CKB(Creatine Kinase B)的蛋白酶會迅速透過Creatine將大量的ATP立刻轉回為ADP以及Phosphocreatine;533Please respect copyright.PENANA9fU5y9lXmy
肌肉細胞及白色脂肪細胞雖然也會進行這步驟,但效率遠遠低於啡色脂肪細胞。533Please respect copyright.PENANAWKx6UxIF7x
533Please respect copyright.PENANAWYjrV8DIe7533Please respect copyright.PENANAPPkPJ16sa8
533Please respect copyright.PENANA85ECbzC4dL
ADP並不是細胞通用的能量單位,辛辛苦苦將得來的ATP又轉回成為ADP,情形就如在中國大陸境內將辛苦得來的美金(ATP)轉換為人民幣(ADP)一樣,驟眼看起上來超級無謂及浪費。533Please respect copyright.PENANAFuWR0bNqt2
533Please respect copyright.PENANAG5tgXvazZH
533Please respect copyright.PENANA43rEaMXaLc
雖然細胞可以透過Phosphocreatine及ADP轉化成為ATP及Creatine,但在咖色脂肪細胞裡頭,這情況在大部分的時間也沒有發生,正如大陸境內沒法能夠兌換人民幣(ADP)為美金(ATP)一樣。533Please respect copyright.PENANAoBAPDpB3j4
533Please respect copyright.PENANAr0KTxbO1T8
理論上,身體細胞理應發展出一套非常完善的系統,不會做出多餘浪費的行為。533Please respect copyright.PENANASZQUNgrwU9
533Please respect copyright.PENANABNEFSIm52o
而現時開始有證據顯示,這「浪費行為」相信能夠輔助啡色脂肪將營養轉化成為熱能,而非能量的儲存。533Please respect copyright.PENANAx9lwtk7907
533Please respect copyright.PENANAvk1sml5egz
若能夠完整地理解整個機制,或許可透過藥物影響肚腩(白色脂肪)的CKB蛋白酶含量,將肚腩脂肪逐一消耗成為熱能,達減肥之效。533Please respect copyright.PENANAuIzqu8gYTL
533Please respect copyright.PENANA618ztuvtaZ
533Please respect copyright.PENANABLMgzhqCov
533Please respect copyright.PENANAe5rq4sMX0E
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。533Please respect copyright.PENANAfe6NwlQtnS
533Please respect copyright.PENANAqYuXab0a4d
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/toc533Please respect copyright.PENANAJZzohw5G0Q
533Please respect copyright.PENANAx7O81nj1J1
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。533Please respect copyright.PENANA3IGLJoxlJJ
533Please respect copyright.PENANA9L3mIPGVuC
Link:533Please respect copyright.PENANAt79WV8KmIq
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio533Please respect copyright.PENANAk4yKdmCUng
533Please respect copyright.PENANAzpAEHXnU0F
533Please respect copyright.PENANAMvDks08In2
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。533Please respect copyright.PENANA8LPluuORAI
533Please respect copyright.PENANAmQd4jNz35N
Ref1:https://www.nature.com/articles/s41586-021-03221-y533Please respect copyright.PENANAIYXgx2rXRn
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #184
三十秒科學–身體細胞會否進行浪費舉動?
喜歡 1
閱讀 529
書籤 150
campaign
催更 0
打賞

按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人