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。1964Please respect copyright.ＰＥＮＡＮＡZjg3IgbsNd
1964Please respect copyright.ＰＥＮＡＮＡrGS6fweWSz
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。1964Please respect copyright.ＰＥＮＡＮＡ25SV7kiY8q
1964Please respect copyright.ＰＥＮＡＮＡJ7SQ95Urly
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。1964Please respect copyright.ＰＥＮＡＮＡKpADhLSCBO
1964Please respect copyright.ＰＥＮＡＮＡvlJggEJl3w
1964Please respect copyright.ＰＥＮＡＮＡLNcQi5NFAp
（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1964Please respect copyright.ＰＥＮＡＮＡaGbyXSq6SU
(Apocrine Sweat Glands)1964Please respect copyright.ＰＥＮＡＮＡeYUwXNvuw5
1964Please respect copyright.ＰＥＮＡＮＡe9wuEBHOPG
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。1964Please respect copyright.ＰＥＮＡＮＡRWaoQDc3UR
1964Please respect copyright.ＰＥＮＡＮＡKCru5sgccL
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。1964Please respect copyright.ＰＥＮＡＮＡJzLQtV43sP
1964Please respect copyright.ＰＥＮＡＮＡ0cLv86eG76
而大汗腺的主要功能，到目前為止仍未能搞得清楚。1964Please respect copyright.ＰＥＮＡＮＡsQZPnzcsx9
1964Please respect copyright.ＰＥＮＡＮＡhiRhp1cfCx
1964Please respect copyright.ＰＥＮＡＮＡt43imCMzis
1964Please respect copyright.ＰＥＮＡＮＡHroytDdqIT
（圖2）下列三點為文中所找出的異味散發機制。1964Please respect copyright.ＰＥＮＡＮＡpHDp6x3tOC
1964Please respect copyright.ＰＥＮＡＮＡEQX26h2940
1.大汗腺釋出無味物質Cys-Gly-3M3SH。1964Please respect copyright.ＰＥＮＡＮＡaCY7tiHUef
1964Please respect copyright.ＰＥＮＡＮＡrgC49yfwSh
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。1964Please respect copyright.ＰＥＮＡＮＡwhvdTyPHm2
1964Please respect copyright.ＰＥＮＡＮＡWlVykHYzZt
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。1964Please respect copyright.ＰＥＮＡＮＡoehN1H9K4P
1964Please respect copyright.ＰＥＮＡＮＡWGcZJT3qDE
換句話說，腋下的異味就是由這些細菌引致而成的。1964Please respect copyright.ＰＥＮＡＮＡLrwkxlDjIa
1964Please respect copyright.ＰＥＮＡＮＡIAUWM7PP43
1964Please respect copyright.ＰＥＮＡＮＡKKxhYpoFll
1964Please respect copyright.ＰＥＮＡＮＡrhSwVoiuev
（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。1964Please respect copyright.ＰＥＮＡＮＡQcuZVPXS0y
1964Please respect copyright.ＰＥＮＡＮＡxzomsp0RLK
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。1964Please respect copyright.ＰＥＮＡＮＡAywNuDR37W
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。1964Please respect copyright.ＰＥＮＡＮＡOiA7etwdDr
1964Please respect copyright.ＰＥＮＡＮＡe0vNEs4Ti1
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；1964Please respect copyright.ＰＥＮＡＮＡBTS8a3jxDT
1964Please respect copyright.ＰＥＮＡＮＡSHicFt95xA
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。1964Please respect copyright.ＰＥＮＡＮＡSbHPFJXXEB
1964Please respect copyright.ＰＥＮＡＮＡDQsp98FPTu
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。1964Please respect copyright.ＰＥＮＡＮＡyd2x9V2rMJ
1964Please respect copyright.ＰＥＮＡＮＡzbwYewQoeu
1964Please respect copyright.ＰＥＮＡＮＡM5iHFlSDIC
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。1964Please respect copyright.ＰＥＮＡＮＡsppyBw2Ub1
1964Please respect copyright.ＰＥＮＡＮＡ7yPvOxandV
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/toc1964Please respect copyright.ＰＥＮＡＮＡsimKt4sgsr
1964Please respect copyright.ＰＥＮＡＮＡ497c7KgXz0
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。1964Please respect copyright.ＰＥＮＡＮＡDLTa59n9re
1964Please respect copyright.ＰＥＮＡＮＡ0OzcZgGRFf
Link:1964Please respect copyright.ＰＥＮＡＮＡfUtQhiyara
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1964Please respect copyright.ＰＥＮＡＮＡvvDVyBeMVV
1964Please respect copyright.ＰＥＮＡＮＡTaUmwf8ZZe
1964Please respect copyright.ＰＥＮＡＮＡkWwzT2lvhs
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。1964Please respect copyright.ＰＥＮＡＮＡLBirBe8kLg
1964Please respect copyright.ＰＥＮＡＮＡ3WAPZDw5ls
Ref1:https://www.nature.com/articles/s41598-020-68860-z1964Please respect copyright.ＰＥＮＡＮＡ549hFGPMXo
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