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。2147Please respect copyright.ＰＥＮＡＮＡ6wkvwK0lud
2147Please respect copyright.ＰＥＮＡＮＡwOgrMMEOVr
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。2147Please respect copyright.ＰＥＮＡＮＡjp0qvSmHTF
2147Please respect copyright.ＰＥＮＡＮＡo6C3n0M8Qw
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。2147Please respect copyright.ＰＥＮＡＮＡxJuusCJ9hH
2147Please respect copyright.ＰＥＮＡＮＡ8OCXvuL36u
2147Please respect copyright.ＰＥＮＡＮＡ1jSA67D1nZ
（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2147Please respect copyright.ＰＥＮＡＮＡAlE8lqcPC3
(Apocrine Sweat Glands)2147Please respect copyright.ＰＥＮＡＮＡyeQVjzTULC
2147Please respect copyright.ＰＥＮＡＮＡgprBejle5Q
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。2147Please respect copyright.ＰＥＮＡＮＡWbsgSDBB6A
2147Please respect copyright.ＰＥＮＡＮＡchsbHLBkQD
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2147Please respect copyright.ＰＥＮＡＮＡyBS17vfExK
2147Please respect copyright.ＰＥＮＡＮＡUhQv2bCrcO
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2147Please respect copyright.ＰＥＮＡＮＡ5Yqj7OTOvH
2147Please respect copyright.ＰＥＮＡＮＡmIFY5KcDbb
2147Please respect copyright.ＰＥＮＡＮＡjLYW2R6qAF
2147Please respect copyright.ＰＥＮＡＮＡuwj8WJG4nU
（圖2）下列三點為文中所找出的異味散發機制。2147Please respect copyright.ＰＥＮＡＮＡC5VjXZq4KO
2147Please respect copyright.ＰＥＮＡＮＡ73EsigN872
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2147Please respect copyright.ＰＥＮＡＮＡINrlghHHl7
2147Please respect copyright.ＰＥＮＡＮＡ2FW2PIDsDg
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2147Please respect copyright.ＰＥＮＡＮＡRPwZUwVp4Q
2147Please respect copyright.ＰＥＮＡＮＡGYsPqkTkuf
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2147Please respect copyright.ＰＥＮＡＮＡmiOHgZ5lMX
2147Please respect copyright.ＰＥＮＡＮＡYCdjJNF1W5
換句話說，腋下的異味就是由這些細菌引致而成的。2147Please respect copyright.ＰＥＮＡＮＡk8cKNdpZ4H
2147Please respect copyright.ＰＥＮＡＮＡ1FDgXvWt5A
2147Please respect copyright.ＰＥＮＡＮＡCey1P0tsva
2147Please respect copyright.ＰＥＮＡＮＡEQHiOrZCl4
（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。2147Please respect copyright.ＰＥＮＡＮＡV2zJCcRdJ3
2147Please respect copyright.ＰＥＮＡＮＡjnnSQ6noJC
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。2147Please respect copyright.ＰＥＮＡＮＡJdjKKcGEum
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。2147Please respect copyright.ＰＥＮＡＮＡCgijYdiMGq
2147Please respect copyright.ＰＥＮＡＮＡ8DvtnbYtd4
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；2147Please respect copyright.ＰＥＮＡＮＡKdvjYdPYRY
2147Please respect copyright.ＰＥＮＡＮＡflHMuEaNcu
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。2147Please respect copyright.ＰＥＮＡＮＡ9BnXGRuSur
2147Please respect copyright.ＰＥＮＡＮＡT5Mzh75oBI
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2147Please respect copyright.ＰＥＮＡＮＡoP7i8mCmIe
2147Please respect copyright.ＰＥＮＡＮＡelwEEGykw0
2147Please respect copyright.ＰＥＮＡＮＡINOU6aFCSO
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。2147Please respect copyright.ＰＥＮＡＮＡqtqeaiwDw1
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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/toc2147Please respect copyright.ＰＥＮＡＮＡBIYk3tqj4c
2147Please respect copyright.ＰＥＮＡＮＡOCw2MZqKSR
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。2147Please respect copyright.ＰＥＮＡＮＡ4vAAwBCYXm
2147Please respect copyright.ＰＥＮＡＮＡptxrwtpq7m
Link:2147Please respect copyright.ＰＥＮＡＮＡwjTynlhCKq
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2147Please respect copyright.ＰＥＮＡＮＡ8dGsEek6Kb
2147Please respect copyright.ＰＥＮＡＮＡsca0KVXipo
2147Please respect copyright.ＰＥＮＡＮＡjn9KzsIzxx
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2147Please respect copyright.ＰＥＮＡＮＡ8iWVoOvyfZ
2147Please respect copyright.ＰＥＮＡＮＡ4Vw53EnMR6
Ref1:https://www.nature.com/articles/s41598-020-68860-z2147Please respect copyright.ＰＥＮＡＮＡTZsrv7FO2l
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