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。2074Please respect copyright.ＰＥＮＡＮＡirZG1pCPO0
2074Please respect copyright.ＰＥＮＡＮＡLaUprne5nS
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。2074Please respect copyright.ＰＥＮＡＮＡPIT9FSDPzJ
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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。2074Please respect copyright.ＰＥＮＡＮＡyAaRxYYprQ
2074Please respect copyright.ＰＥＮＡＮＡeMSAsBsBOg
2074Please respect copyright.ＰＥＮＡＮＡcSleVmbLl8
（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2074Please respect copyright.ＰＥＮＡＮＡLHYYBInHkF
(Apocrine Sweat Glands)2074Please respect copyright.ＰＥＮＡＮＡTaVlybbTOc
2074Please respect copyright.ＰＥＮＡＮＡ5XjbxPBoCu
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。2074Please respect copyright.ＰＥＮＡＮＡRYzmU8GDDc
2074Please respect copyright.ＰＥＮＡＮＡS5BcqqLbi1
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2074Please respect copyright.ＰＥＮＡＮＡnBh0ZkRZqn
2074Please respect copyright.ＰＥＮＡＮＡ7P3eocc2pL
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2074Please respect copyright.ＰＥＮＡＮＡzJl2HuX2hj
2074Please respect copyright.ＰＥＮＡＮＡSIdYs01Y1n
2074Please respect copyright.ＰＥＮＡＮＡQND1towS0E
2074Please respect copyright.ＰＥＮＡＮＡVUC68GhQNU
（圖2）下列三點為文中所找出的異味散發機制。2074Please respect copyright.ＰＥＮＡＮＡVPJBgsoT5g
2074Please respect copyright.ＰＥＮＡＮＡPg3NfBCQVo
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2074Please respect copyright.ＰＥＮＡＮＡHkzHIbHbur
2074Please respect copyright.ＰＥＮＡＮＡWCBOhuPJzx
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2074Please respect copyright.ＰＥＮＡＮＡfLlHD7pv40
2074Please respect copyright.ＰＥＮＡＮＡxURZwqkUWy
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2074Please respect copyright.ＰＥＮＡＮＡga02XGlkXs
2074Please respect copyright.ＰＥＮＡＮＡxiSdUwILNM
換句話說，腋下的異味就是由這些細菌引致而成的。2074Please respect copyright.ＰＥＮＡＮＡz5SUtnfCYF
2074Please respect copyright.ＰＥＮＡＮＡWOnxXgJYv3
2074Please respect copyright.ＰＥＮＡＮＡtpvpSqi1s7
2074Please respect copyright.ＰＥＮＡＮＡVYGPbKCzZG
（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。2074Please respect copyright.ＰＥＮＡＮＡ7tnnHoY7zD
2074Please respect copyright.ＰＥＮＡＮＡUMrAo8Cv9s
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。2074Please respect copyright.ＰＥＮＡＮＡLhnbGEr0vP
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。2074Please respect copyright.ＰＥＮＡＮＡkrK3sI2Agh
2074Please respect copyright.ＰＥＮＡＮＡ57KgXpWa5z
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；2074Please respect copyright.ＰＥＮＡＮＡt55O1iEHtc
2074Please respect copyright.ＰＥＮＡＮＡdEvhPKhvdm
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。2074Please respect copyright.ＰＥＮＡＮＡYxxPtG1QxS
2074Please respect copyright.ＰＥＮＡＮＡ0TUiolwurC
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2074Please respect copyright.ＰＥＮＡＮＡXRc92gZDo7
2074Please respect copyright.ＰＥＮＡＮＡnCQFxOiMaG
2074Please respect copyright.ＰＥＮＡＮＡMotj4yTpHy
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。2074Please respect copyright.ＰＥＮＡＮＡYYNltchBVF
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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/toc2074Please respect copyright.ＰＥＮＡＮＡ7Tn1GtbWsy
2074Please respect copyright.ＰＥＮＡＮＡILegipn076
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。2074Please respect copyright.ＰＥＮＡＮＡtrD3g4T6rX
2074Please respect copyright.ＰＥＮＡＮＡqAx0cBvWgA
Link:2074Please respect copyright.ＰＥＮＡＮＡsGUmAzVbEI
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2074Please respect copyright.ＰＥＮＡＮＡu7rreBvfGW
2074Please respect copyright.ＰＥＮＡＮＡAwLcO6Y1az
2074Please respect copyright.ＰＥＮＡＮＡEXXXyFlA8U
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2074Please respect copyright.ＰＥＮＡＮＡw5BVweVUOP
2074Please respect copyright.ＰＥＮＡＮＡE0zC6gu6y2
Ref1:https://www.nature.com/articles/s41598-020-68860-z2074Please respect copyright.ＰＥＮＡＮＡBt5ylsH3pz
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