我們身體的細胞,會否作出多餘或者浪費的事情呢?601Please respect copyright.PENANAj8OQkMIfKO601Please respect copyright.PENANAST7ZROjFay
601Please respect copyright.PENANAFu1Zdzjf83
(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。601Please respect copyright.PENANAF1q4NJEhHL601Please respect copyright.PENANAnX81DnecZJ
601Please respect copyright.PENANAvOdquTzgBT
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。601Please respect copyright.PENANAIdwZ4IfHVg
601Please respect copyright.PENANAC8Ba8m2g9E
(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;601Please respect copyright.PENANAE8b2GVr9k8
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。601Please respect copyright.PENANAOnuZDFzzcZ
601Please respect copyright.PENANAz0MUlwRyDn601Please respect copyright.PENANA5HwvYTQehT
601Please respect copyright.PENANAhOXeTFAFxt
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。601Please respect copyright.PENANA4rgGS7wKYF
601Please respect copyright.PENANAaQf2Yzr0MP
601Please respect copyright.PENANAEtzr7oyRdT
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。601Please respect copyright.PENANARRo2IOxjAP
601Please respect copyright.PENANAmOSpJcST3Z
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。601Please respect copyright.PENANAJOxn1N5vzX
601Please respect copyright.PENANArgNPsX4GdT
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。601Please respect copyright.PENANA6vUcamfY6M
601Please respect copyright.PENANA9nFZEZ10OH
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。601Please respect copyright.PENANAjuiiNkSjVR
601Please respect copyright.PENANAirMcvRuK3R
601Please respect copyright.PENANANy7hRdnZjs
601Please respect copyright.PENANAZyMxwlD4Jm
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。601Please respect copyright.PENANAS4GbQPcrk2
601Please respect copyright.PENANATSywMHI4QQ
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/toc601Please respect copyright.PENANAyiUVoM6mQU
601Please respect copyright.PENANAJlzhfE1eMG
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。601Please respect copyright.PENANAyCZjhgKQXJ
601Please respect copyright.PENANA6dHDku1b55
Link:601Please respect copyright.PENANAJEuM7WSPrS
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio601Please respect copyright.PENANABqYcZzi8VX
601Please respect copyright.PENANARaQ0WjM87D
601Please respect copyright.PENANA7O9YCp2dQp
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。601Please respect copyright.PENANAvRKCcV28EW
601Please respect copyright.PENANAs6iWDUbrpT
Ref1:https://www.nature.com/articles/s41586-021-03221-y601Please respect copyright.PENANAdLxNy2Ey7a