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。2005Please respect copyright.ＰＥＮＡＮＡbZLrtYqbqi
2005Please respect copyright.ＰＥＮＡＮＡZhG2T8tVpv
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。2005Please respect copyright.ＰＥＮＡＮＡ6TnSlBE9rK
2005Please respect copyright.ＰＥＮＡＮＡnk4s0RmMWv
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。2005Please respect copyright.ＰＥＮＡＮＡiKMiS3l9Dj
2005Please respect copyright.ＰＥＮＡＮＡX7kw7EWimN
2005Please respect copyright.ＰＥＮＡＮＡb5joXvspnQ
（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2005Please respect copyright.ＰＥＮＡＮＡ5hkEIaRrdP
(Apocrine Sweat Glands)2005Please respect copyright.ＰＥＮＡＮＡmD5gU7bwwa
2005Please respect copyright.ＰＥＮＡＮＡHwdXi9RIGK
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。2005Please respect copyright.ＰＥＮＡＮＡg9u1damyCS
2005Please respect copyright.ＰＥＮＡＮＡVyMTdhkfk6
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2005Please respect copyright.ＰＥＮＡＮＡOipmRLPLeL
2005Please respect copyright.ＰＥＮＡＮＡ0YhcFpHnHM
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2005Please respect copyright.ＰＥＮＡＮＡedkPPOsc9T
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2005Please respect copyright.ＰＥＮＡＮＡwIGKCpJufx
2005Please respect copyright.ＰＥＮＡＮＡ7e5TWHzpFE
（圖2）下列三點為文中所找出的異味散發機制。2005Please respect copyright.ＰＥＮＡＮＡXufroSOCFy
2005Please respect copyright.ＰＥＮＡＮＡCOPqAMldKr
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2005Please respect copyright.ＰＥＮＡＮＡndzUaiyB3R
2005Please respect copyright.ＰＥＮＡＮＡ5gNorjaMXm
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2005Please respect copyright.ＰＥＮＡＮＡkmNkunO9ku
2005Please respect copyright.ＰＥＮＡＮＡXHPHZwEC3j
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2005Please respect copyright.ＰＥＮＡＮＡ9ybmgdb0AI
2005Please respect copyright.ＰＥＮＡＮＡ4k3qYFP3Af
換句話說，腋下的異味就是由這些細菌引致而成的。2005Please respect copyright.ＰＥＮＡＮＡoHUtgWY7at
2005Please respect copyright.ＰＥＮＡＮＡQa4OPKPM4N
2005Please respect copyright.ＰＥＮＡＮＡrz2L7yPJxc
2005Please respect copyright.ＰＥＮＡＮＡOcGb3rvEWs
（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。2005Please respect copyright.ＰＥＮＡＮＡNYYv79WvMB
2005Please respect copyright.ＰＥＮＡＮＡl6sKiTOAQx
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。2005Please respect copyright.ＰＥＮＡＮＡAZ8BKZFpjz
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。2005Please respect copyright.ＰＥＮＡＮＡ2QuvVEbhUq
2005Please respect copyright.ＰＥＮＡＮＡ0Ag0LecgCj
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；2005Please respect copyright.ＰＥＮＡＮＡuYIJbjycp2
2005Please respect copyright.ＰＥＮＡＮＡJmSlWu7fFH
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。2005Please respect copyright.ＰＥＮＡＮＡKCQEEDpMR7
2005Please respect copyright.ＰＥＮＡＮＡ5q7cSyJZ94
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2005Please respect copyright.ＰＥＮＡＮＡ4iji7YhhwS
2005Please respect copyright.ＰＥＮＡＮＡwRBEE9mXzu
2005Please respect copyright.ＰＥＮＡＮＡo8ebqnVbQi
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。2005Please respect copyright.ＰＥＮＡＮＡWit1i8CmSL
2005Please respect copyright.ＰＥＮＡＮＡJdCZEVFPjd
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/toc2005Please respect copyright.ＰＥＮＡＮＡo7LGvAy0z1
2005Please respect copyright.ＰＥＮＡＮＡiYVC3SnJuw
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。2005Please respect copyright.ＰＥＮＡＮＡksAr6yg8IO
2005Please respect copyright.ＰＥＮＡＮＡOzEagdnfZ1
Link:2005Please respect copyright.ＰＥＮＡＮＡoRDJVBC2vQ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2005Please respect copyright.ＰＥＮＡＮＡ6E3zGjCE00
2005Please respect copyright.ＰＥＮＡＮＡD1V5PeJrwH
2005Please respect copyright.ＰＥＮＡＮＡEDXuAWH8hQ
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2005Please respect copyright.ＰＥＮＡＮＡfVz8goa5Jp
2005Please respect copyright.ＰＥＮＡＮＡmEFQAXRuz3
Ref1:https://www.nature.com/articles/s41598-020-68860-z2005Please respect copyright.ＰＥＮＡＮＡVDu8n7E9jd
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