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。2103Please respect copyright.ＰＥＮＡＮＡerfxTZgSTz
2103Please respect copyright.ＰＥＮＡＮＡdf6gu3niPe
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。2103Please respect copyright.ＰＥＮＡＮＡsmk9famzoM
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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。2103Please respect copyright.ＰＥＮＡＮＡlZho5WSqxe
2103Please respect copyright.ＰＥＮＡＮＡnfUO0N5pb5
2103Please respect copyright.ＰＥＮＡＮＡnfsR9Rueui
（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2103Please respect copyright.ＰＥＮＡＮＡQl1brd5HQG
(Apocrine Sweat Glands)2103Please respect copyright.ＰＥＮＡＮＡfhW414aiYY
2103Please respect copyright.ＰＥＮＡＮＡvnlUp8UnBz
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。2103Please respect copyright.ＰＥＮＡＮＡvjtbd59bIQ
2103Please respect copyright.ＰＥＮＡＮＡUtbRjQFZ97
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2103Please respect copyright.ＰＥＮＡＮＡuIz0607fm0
2103Please respect copyright.ＰＥＮＡＮＡbHFZKAyMnn
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2103Please respect copyright.ＰＥＮＡＮＡ2cUVkTutXq
2103Please respect copyright.ＰＥＮＡＮＡEUkiYmKm1D
2103Please respect copyright.ＰＥＮＡＮＡm5gFFr3UvX
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（圖2）下列三點為文中所找出的異味散發機制。2103Please respect copyright.ＰＥＮＡＮＡa8b7i43Yym
2103Please respect copyright.ＰＥＮＡＮＡKYPmLWdUhb
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2103Please respect copyright.ＰＥＮＡＮＡSA6MKpHAt7
2103Please respect copyright.ＰＥＮＡＮＡpvjZzyGNhl
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2103Please respect copyright.ＰＥＮＡＮＡfpN5AspmOr
2103Please respect copyright.ＰＥＮＡＮＡy3ruU490zS
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2103Please respect copyright.ＰＥＮＡＮＡLG1ENquiy1
2103Please respect copyright.ＰＥＮＡＮＡhhmXyvj3Zk
換句話說，腋下的異味就是由這些細菌引致而成的。2103Please respect copyright.ＰＥＮＡＮＡKuCGwZytin
2103Please respect copyright.ＰＥＮＡＮＡgQOoFVaH1D
2103Please respect copyright.ＰＥＮＡＮＡIdJlEbaLIB
2103Please respect copyright.ＰＥＮＡＮＡQnbAPEZnhn
（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。2103Please respect copyright.ＰＥＮＡＮＡZy39qLrYbG
2103Please respect copyright.ＰＥＮＡＮＡdzC4WazXfp
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。2103Please respect copyright.ＰＥＮＡＮＡvu3gWvhlhT
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。2103Please respect copyright.ＰＥＮＡＮＡWp9e7O4mZ4
2103Please respect copyright.ＰＥＮＡＮＡc0GqsotjEJ
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；2103Please respect copyright.ＰＥＮＡＮＡaLwgsjupxK
2103Please respect copyright.ＰＥＮＡＮＡmFOYwsl5S9
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。2103Please respect copyright.ＰＥＮＡＮＡYZYwJm5Nlz
2103Please respect copyright.ＰＥＮＡＮＡc0yhhKd8rZ
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2103Please respect copyright.ＰＥＮＡＮＡ5RONyq1sie
2103Please respect copyright.ＰＥＮＡＮＡuhhQXBRcf7
2103Please respect copyright.ＰＥＮＡＮＡTbGkChFByZ
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。2103Please respect copyright.ＰＥＮＡＮＡ0ZasufQXVe
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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/toc2103Please respect copyright.ＰＥＮＡＮＡRsooB52ecP
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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。2103Please respect copyright.ＰＥＮＡＮＡAFirFWsED5
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Link:2103Please respect copyright.ＰＥＮＡＮＡDuC65pLI8u
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2103Please respect copyright.ＰＥＮＡＮＡRXkquv3aAO
2103Please respect copyright.ＰＥＮＡＮＡtUcE9EYmuf
2103Please respect copyright.ＰＥＮＡＮＡYdLeVla9Zi
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2103Please respect copyright.ＰＥＮＡＮＡ6gKDQWt33a
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Ref1:https://www.nature.com/articles/s41598-020-68860-z2103Please respect copyright.ＰＥＮＡＮＡOaqdmzPeue
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