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。1913Please respect copyright.ＰＥＮＡＮＡjcDRbR6Eea
1913Please respect copyright.ＰＥＮＡＮＡO96T2tQl7n
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。1913Please respect copyright.ＰＥＮＡＮＡPlzCucdlmw
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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。1913Please respect copyright.ＰＥＮＡＮＡmFBAIJX3yq
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1913Please respect copyright.ＰＥＮＡＮＡ4WVJ71h1wY
（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1913Please respect copyright.ＰＥＮＡＮＡSvKiBSzVk7
(Apocrine Sweat Glands)1913Please respect copyright.ＰＥＮＡＮＡBCX570SKei
1913Please respect copyright.ＰＥＮＡＮＡLzigK6vvxI
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。1913Please respect copyright.ＰＥＮＡＮＡU8ifIKh83B
1913Please respect copyright.ＰＥＮＡＮＡ4F02dGROcF
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。1913Please respect copyright.ＰＥＮＡＮＡlInuKWKnOn
1913Please respect copyright.ＰＥＮＡＮＡIuEGecsSg3
而大汗腺的主要功能，到目前為止仍未能搞得清楚。1913Please respect copyright.ＰＥＮＡＮＡmXHUNNNSYw
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1913Please respect copyright.ＰＥＮＡＮＡg9kYM3Po9X
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（圖2）下列三點為文中所找出的異味散發機制。1913Please respect copyright.ＰＥＮＡＮＡx0H1ocwZJR
1913Please respect copyright.ＰＥＮＡＮＡUiefHZCa4t
1.大汗腺釋出無味物質Cys-Gly-3M3SH。1913Please respect copyright.ＰＥＮＡＮＡFo4qC8wYqG
1913Please respect copyright.ＰＥＮＡＮＡnAS3oAP2lD
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。1913Please respect copyright.ＰＥＮＡＮＡzrw5Lgsg5C
1913Please respect copyright.ＰＥＮＡＮＡxXyhsFXzDv
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。1913Please respect copyright.ＰＥＮＡＮＡWJ205DlMlp
1913Please respect copyright.ＰＥＮＡＮＡ6iX7QRbeIm
換句話說，腋下的異味就是由這些細菌引致而成的。1913Please respect copyright.ＰＥＮＡＮＡ8RlKA1oNCx
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1913Please respect copyright.ＰＥＮＡＮＡ0On4g0Lnb8
1913Please respect copyright.ＰＥＮＡＮＡDo8oRIvKTQ
（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。1913Please respect copyright.ＰＥＮＡＮＡ0RzFreYqF8
1913Please respect copyright.ＰＥＮＡＮＡdpXdGg058G
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。1913Please respect copyright.ＰＥＮＡＮＡfuD0B4cYoL
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。1913Please respect copyright.ＰＥＮＡＮＡmQIY0cYJCV
1913Please respect copyright.ＰＥＮＡＮＡIknEwL66Vj
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；1913Please respect copyright.ＰＥＮＡＮＡnEW9SSBATh
1913Please respect copyright.ＰＥＮＡＮＡthPWm6FnTS
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。1913Please respect copyright.ＰＥＮＡＮＡArKU2DjqpS
1913Please respect copyright.ＰＥＮＡＮＡTg05t0BMs4
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。1913Please respect copyright.ＰＥＮＡＮＡe3fpf0g7vp
1913Please respect copyright.ＰＥＮＡＮＡWOQOuODmPB
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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。1913Please respect copyright.ＰＥＮＡＮＡ2F1FFmPHRa
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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/toc1913Please respect copyright.ＰＥＮＡＮＡKXCBWuxAeK
1913Please respect copyright.ＰＥＮＡＮＡ0cTABJRvSm
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。1913Please respect copyright.ＰＥＮＡＮＡzsVNHWcJmO
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Link:1913Please respect copyright.ＰＥＮＡＮＡwVGq3sJFuh
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1913Please respect copyright.ＰＥＮＡＮＡT5NaFtBHjz
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1913Please respect copyright.ＰＥＮＡＮＡGsfjuZsnkW
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。1913Please respect copyright.ＰＥＮＡＮＡy1XzjF9SxS
1913Please respect copyright.ＰＥＮＡＮＡ4h0BQZBatD
Ref1:https://www.nature.com/articles/s41598-020-68860-z1913Please respect copyright.ＰＥＮＡＮＡtARSSdifug
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