如果測量一個人的細胞數量，事實上只有25%是屬於人體細胞，其餘的75%均由細菌及真菌所據。1998Please respect copyright.ＰＥＮＡＮＡskmqlU04wn
1998Please respect copyright.ＰＥＮＡＮＡibjLiYHBdt
細菌及真菌可以說是「無處不在」，它們不但寄宿於我們的皮膚外層，亦同時駐紮在我們身體內的腸道及各器官部位，與我們成呈共生關係。1998Please respect copyright.ＰＥＮＡＮＡT3f5CsgoeH
1998Please respect copyright.ＰＥＮＡＮＡi5QLcyw7cb
最近有科學家發表學術文章（Ref1)，講述位於汗腺附近的細菌就是腋下異味的其中一個元兇。1998Please respect copyright.ＰＥＮＡＮＡfMaJMixO8N
1998Please respect copyright.ＰＥＮＡＮＡOEajpSBsR0
1998Please respect copyright.ＰＥＮＡＮＡDbWswwZcEa
（圖1）我們身體的肝腺大致分為兩種，外分泌汗腺(Eccrine Sweat Glands)及大汗腺1998Please respect copyright.ＰＥＮＡＮＡvPvqIwUkC7
(Apocrine Sweat Glands)1998Please respect copyright.ＰＥＮＡＮＡJPzCcCKdyh
1998Please respect copyright.ＰＥＮＡＮＡDtcI8R3CC0
前者接近遍佈全身，不與毛髮連接。後者主要位於腋下、乳頭及私處部位，與毛髮連接。1998Please respect copyright.ＰＥＮＡＮＡIOqfK8qC7E
1998Please respect copyright.ＰＥＮＡＮＡMawgrqkU35
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。1998Please respect copyright.ＰＥＮＡＮＡTQBydAkiKB
1998Please respect copyright.ＰＥＮＡＮＡk2C003LKMZ
而大汗腺的主要功能，到目前為止仍未能搞得清楚。1998Please respect copyright.ＰＥＮＡＮＡO3O3BONhuG
1998Please respect copyright.ＰＥＮＡＮＡe1nAjkrT4F
1998Please respect copyright.ＰＥＮＡＮＡLTMxm4DI3t
1998Please respect copyright.ＰＥＮＡＮＡL8csY2xiiQ
（圖2）下列三點為文中所找出的異味散發機制。1998Please respect copyright.ＰＥＮＡＮＡi1Fe3oUdxn
1998Please respect copyright.ＰＥＮＡＮＡpnP23YuTfy
1.大汗腺釋出無味物質Cys-Gly-3M3SH。1998Please respect copyright.ＰＥＮＡＮＡ5ws8BGVhaX
1998Please respect copyright.ＰＥＮＡＮＡoOeCLMqcA2
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。1998Please respect copyright.ＰＥＮＡＮＡS013zjCMP9
1998Please respect copyright.ＰＥＮＡＮＡdT8KmbplW5
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。1998Please respect copyright.ＰＥＮＡＮＡhQ6Hv4XfuT
1998Please respect copyright.ＰＥＮＡＮＡbCVQNMVj9I
換句話說，腋下的異味就是由這些細菌引致而成的。1998Please respect copyright.ＰＥＮＡＮＡxXDbFgHSmT
1998Please respect copyright.ＰＥＮＡＮＡ8U032Kr0x5
1998Please respect copyright.ＰＥＮＡＮＡ33Xy7psgok
1998Please respect copyright.ＰＥＮＡＮＡ9lvTy40hYO
（圖3）為作進一步的證實，科學家利用黃金葡萄球菌作對照實驗。1998Please respect copyright.ＰＥＮＡＮＡ3Hg4jgkKdA
1998Please respect copyright.ＰＥＮＡＮＡcGtjWcBA2A
他們發現人葡萄球菌的近親黃金葡萄球菌並沒能夠將無味的Cys-Gly-3M3SH消化成為帶有異味的3M3SH。1998Please respect copyright.ＰＥＮＡＮＡTLXfJ3VCS5
但是，當把人葡萄球菌其中一隻酵素轉移到黃金葡萄球菌後，無味的Cys-Gly-3M3SH便能夠被消化成為帶有異味的3M3SH，證實異味是由那隻酵素所致。1998Please respect copyright.ＰＥＮＡＮＡnW4y09ZTwx
1998Please respect copyright.ＰＥＮＡＮＡj0rtz3zrV5
這隻酵素一直以來並沒有被前人發現，亦即是說，只要能夠研發出抑制那隻酵素的止汗劑的話，腋下的大部份異味亦能得以除去；1998Please respect copyright.ＰＥＮＡＮＡSsezSxZ0Fd
1998Please respect copyright.ＰＥＮＡＮＡWX9Rxk6FfE
異味的產生，基本上是由硫醇（Thioalcohol)及脂肪酸(Fatty acid)而成。此文章所談及的機制純屬與硫醇的產生有關，沒有觸及脂肪酸那一方面。1998Please respect copyright.ＰＥＮＡＮＡT8PrYUZ71N
1998Please respect copyright.ＰＥＮＡＮＡsWesJpENpS
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。1998Please respect copyright.ＰＥＮＡＮＡYEKo02DWCz
1998Please respect copyright.ＰＥＮＡＮＡMzTlx98Z2p
1998Please respect copyright.ＰＥＮＡＮＡTsDo11nwpE
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。1998Please respect copyright.ＰＥＮＡＮＡ8TAcGzHCW1
1998Please respect copyright.ＰＥＮＡＮＡqfL4zvZ40N
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/toc1998Please respect copyright.ＰＥＮＡＮＡvgiQUKedje
1998Please respect copyright.ＰＥＮＡＮＡRzUfeK9FcF
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。1998Please respect copyright.ＰＥＮＡＮＡwUyzKpfbsR
1998Please respect copyright.ＰＥＮＡＮＡXdvDDzCjKo
Link:1998Please respect copyright.ＰＥＮＡＮＡL7H7W1INB3
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1998Please respect copyright.ＰＥＮＡＮＡGfBZNCf0kI
1998Please respect copyright.ＰＥＮＡＮＡsPvoloPLmY
1998Please respect copyright.ＰＥＮＡＮＡWMDm6Ir0uT
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。1998Please respect copyright.ＰＥＮＡＮＡfYPYcIjOnT
1998Please respect copyright.ＰＥＮＡＮＡTaCU3fBN3u
Ref1:https://www.nature.com/articles/s41598-020-68860-z1998Please respect copyright.ＰＥＮＡＮＡFXVAIPhrRC
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