我們身體的細胞,會否作出多餘或者浪費的事情呢?331Please respect copyright.PENANAFrGaScK8Gk
331Please respect copyright.PENANAN0iIePa7lu
331Please respect copyright.PENANAnOthwO3rix
(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。331Please respect copyright.PENANAiO8ePc7tmI
331Please respect copyright.PENANA0P62uFAjDI
331Please respect copyright.PENANApOaYlctqFs
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。331Please respect copyright.PENANAsFf97uHNUX
331Please respect copyright.PENANAEWkHRMIHmS
(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;331Please respect copyright.PENANANuHlkfetRA
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。331Please respect copyright.PENANA17Gam6Z340
331Please respect copyright.PENANAZOnCMV93Jd
331Please respect copyright.PENANAbhP57HNrEN
331Please respect copyright.PENANAyynidB83cu
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。331Please respect copyright.PENANAq0XyW7L2eh
331Please respect copyright.PENANAJbzGQtbSqq
331Please respect copyright.PENANAtV2vGOxWJU
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。331Please respect copyright.PENANAKAOccYgerm
331Please respect copyright.PENANAVUtPIrqmv7
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。331Please respect copyright.PENANAUdgz3LFoVa
331Please respect copyright.PENANA93f8JUil9C
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。331Please respect copyright.PENANAU0vkZ5CE7U
331Please respect copyright.PENANAjmfT6Ptg3L
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。331Please respect copyright.PENANAluGV40ZkZZ
331Please respect copyright.PENANABUhVscqYd3
331Please respect copyright.PENANAGI1IRSbrL2
331Please respect copyright.PENANASpxqXl0vqI
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。331Please respect copyright.PENANAXTgpdqIQaS
331Please respect copyright.PENANAAmrxDINyH2
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/toc331Please respect copyright.PENANA7gVWYcdugb
331Please respect copyright.PENANAwxJnjTNH3f
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。331Please respect copyright.PENANAgJpdqlx5oK
331Please respect copyright.PENANAlVOFgfLb7U
Link:331Please respect copyright.PENANAauaXc6jOUP
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio331Please respect copyright.PENANAE9WDWE84CK
331Please respect copyright.PENANABW4l87aHFU
331Please respect copyright.PENANAMgHsHNhCNK
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。331Please respect copyright.PENANAieyDKNYA0U
331Please respect copyright.PENANAOlLduAuc6j
Ref1:https://www.nature.com/articles/s41586-021-03221-y331Please respect copyright.PENANAaZz5nFoJGz