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。2071Please respect copyright.ＰＥＮＡＮＡAaYTZZ6TtR
2071Please respect copyright.ＰＥＮＡＮＡBO2pFyIaj4
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。2071Please respect copyright.ＰＥＮＡＮＡZThES5PJFr
2071Please respect copyright.ＰＥＮＡＮＡ7j8jvE5FzQ
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。2071Please respect copyright.ＰＥＮＡＮＡab9iHqI3kU
2071Please respect copyright.ＰＥＮＡＮＡaTtnn87ugN
2071Please respect copyright.ＰＥＮＡＮＡVYYdWwkgKY
（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2071Please respect copyright.ＰＥＮＡＮＡtqlmop8SC0
(Apocrine Sweat Glands)2071Please respect copyright.ＰＥＮＡＮＡbxWYgvgufn
2071Please respect copyright.ＰＥＮＡＮＡQX9kSaCOmR
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。2071Please respect copyright.ＰＥＮＡＮＡ3EzMXd7Oqj
2071Please respect copyright.ＰＥＮＡＮＡj6Ldkg71tf
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2071Please respect copyright.ＰＥＮＡＮＡpbRY0vmdKV
2071Please respect copyright.ＰＥＮＡＮＡBn7cDu5SiA
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2071Please respect copyright.ＰＥＮＡＮＡR2uyErbSXW
2071Please respect copyright.ＰＥＮＡＮＡdChUlRRYe5
2071Please respect copyright.ＰＥＮＡＮＡxvCAinKPPK
2071Please respect copyright.ＰＥＮＡＮＡ9uPkdcpVLY
（圖2）下列三點為文中所找出的異味散發機制。2071Please respect copyright.ＰＥＮＡＮＡjzj5xjbXrf
2071Please respect copyright.ＰＥＮＡＮＡf9KF5BSZxl
1.大汗腺釋出無味物質Cys-Gly-3M3SH。2071Please respect copyright.ＰＥＮＡＮＡgqHvR8RDqu
2071Please respect copyright.ＰＥＮＡＮＡXbgMq8BEhp
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2071Please respect copyright.ＰＥＮＡＮＡCOkEmBa4G8
2071Please respect copyright.ＰＥＮＡＮＡ7NfWZhaUt5
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2071Please respect copyright.ＰＥＮＡＮＡ56UzsjSkti
2071Please respect copyright.ＰＥＮＡＮＡgQKPBBGgnU
換句話說，腋下的異味就是由這些細菌引致而成的。2071Please respect copyright.ＰＥＮＡＮＡE72di5CxM7
2071Please respect copyright.ＰＥＮＡＮＡwdxs3gIT66
2071Please respect copyright.ＰＥＮＡＮＡ1H6ePps3EA
2071Please respect copyright.ＰＥＮＡＮＡtMXZhPOi0e
（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。2071Please respect copyright.ＰＥＮＡＮＡzk3ssIFqXN
2071Please respect copyright.ＰＥＮＡＮＡx0JFmJVGeM
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。2071Please respect copyright.ＰＥＮＡＮＡqYS9GkQTGn
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。2071Please respect copyright.ＰＥＮＡＮＡfQcn1bCekC
2071Please respect copyright.ＰＥＮＡＮＡYAL7hSoEZw
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；2071Please respect copyright.ＰＥＮＡＮＡRM2PT3luXW
2071Please respect copyright.ＰＥＮＡＮＡ7hfEFQHMug
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。2071Please respect copyright.ＰＥＮＡＮＡeSadWUh2ax
2071Please respect copyright.ＰＥＮＡＮＡWyIJHH4WbC
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2071Please respect copyright.ＰＥＮＡＮＡrWahZqc62Q
2071Please respect copyright.ＰＥＮＡＮＡ8xihgfqXQK
2071Please respect copyright.ＰＥＮＡＮＡ4u3ns9JeOW
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。2071Please respect copyright.ＰＥＮＡＮＡxEuMlGOLQE
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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/toc2071Please respect copyright.ＰＥＮＡＮＡXJffOEtYwR
2071Please respect copyright.ＰＥＮＡＮＡHfZ9Qhcu3d
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。2071Please respect copyright.ＰＥＮＡＮＡSqb1BxsVmd
2071Please respect copyright.ＰＥＮＡＮＡqWhTwZ6TTg
Link:2071Please respect copyright.ＰＥＮＡＮＡp3aGg9pGIw
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2071Please respect copyright.ＰＥＮＡＮＡEPsYis3n3p
2071Please respect copyright.ＰＥＮＡＮＡi7kYwbvcWZ
2071Please respect copyright.ＰＥＮＡＮＡPLdxeaqbel
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2071Please respect copyright.ＰＥＮＡＮＡ5dnBQwTkEu
2071Please respect copyright.ＰＥＮＡＮＡP0HtSmVPt2
Ref1:https://www.nature.com/articles/s41598-020-68860-z2071Please respect copyright.ＰＥＮＡＮＡC5BRukBNXj
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