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。1948Please respect copyright.ＰＥＮＡＮＡn1IpSxUe8K
1948Please respect copyright.ＰＥＮＡＮＡYBJWqRj9cM
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。1948Please respect copyright.ＰＥＮＡＮＡFLUE9SDkMg
1948Please respect copyright.ＰＥＮＡＮＡImekVKyQZT
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。1948Please respect copyright.ＰＥＮＡＮＡS5gYFfDa1X
1948Please respect copyright.ＰＥＮＡＮＡxA0t2yTZlc
1948Please respect copyright.ＰＥＮＡＮＡ8vvodkBJPx
（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1948Please respect copyright.ＰＥＮＡＮＡ8xZIDa7kdF
(Apocrine Sweat Glands)1948Please respect copyright.ＰＥＮＡＮＡ8VmJFlZgG0
1948Please respect copyright.ＰＥＮＡＮＡq64AKQusnp
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。1948Please respect copyright.ＰＥＮＡＮＡ4VKOFwGfHR
1948Please respect copyright.ＰＥＮＡＮＡrbNZuNPgC5
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。1948Please respect copyright.ＰＥＮＡＮＡcIGqzDP23e
1948Please respect copyright.ＰＥＮＡＮＡzynaVpiXN6
而大汗腺的主要功能，到目前為止仍未能搞得清楚。1948Please respect copyright.ＰＥＮＡＮＡO2XjgdzJWn
1948Please respect copyright.ＰＥＮＡＮＡAeZGl5DaKh
1948Please respect copyright.ＰＥＮＡＮＡmdQd2CecFt
1948Please respect copyright.ＰＥＮＡＮＡ95D0X1tFfT
（圖2）下列三點為文中所找出的異味散發機制。1948Please respect copyright.ＰＥＮＡＮＡu9IXtl4Sqy
1948Please respect copyright.ＰＥＮＡＮＡBwpiNijowA
1.大汗腺釋出無味物質Cys-Gly-3M3SH。1948Please respect copyright.ＰＥＮＡＮＡS1Yx6Sz2n7
1948Please respect copyright.ＰＥＮＡＮＡgnvwAMEbEH
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。1948Please respect copyright.ＰＥＮＡＮＡiori7ay5LW
1948Please respect copyright.ＰＥＮＡＮＡRA4XFc4UDX
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。1948Please respect copyright.ＰＥＮＡＮＡiJgLQWJQI6
1948Please respect copyright.ＰＥＮＡＮＡYQJz3etfKF
換句話說，腋下的異味就是由這些細菌引致而成的。1948Please respect copyright.ＰＥＮＡＮＡjnMxFB8oCc
1948Please respect copyright.ＰＥＮＡＮＡJQtev7X58t
1948Please respect copyright.ＰＥＮＡＮＡ0HxVDCArFl
1948Please respect copyright.ＰＥＮＡＮＡlm3lLlazrR
（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。1948Please respect copyright.ＰＥＮＡＮＡx452EbT5YU
1948Please respect copyright.ＰＥＮＡＮＡHrrwFxbsgv
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。1948Please respect copyright.ＰＥＮＡＮＡz74cJQrjxW
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。1948Please respect copyright.ＰＥＮＡＮＡ940C1b0GfK
1948Please respect copyright.ＰＥＮＡＮＡcspIKOCpZP
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；1948Please respect copyright.ＰＥＮＡＮＡQ2D4D3gW1N
1948Please respect copyright.ＰＥＮＡＮＡvxtWEHlRSr
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。1948Please respect copyright.ＰＥＮＡＮＡgvGuV8aDG3
1948Please respect copyright.ＰＥＮＡＮＡRxSeVgiZsW
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。1948Please respect copyright.ＰＥＮＡＮＡ597VkyfJ5Y
1948Please respect copyright.ＰＥＮＡＮＡ1UwdhlflUB
1948Please respect copyright.ＰＥＮＡＮＡxVOJRpUXXI
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。1948Please respect copyright.ＰＥＮＡＮＡAcYJqfq156
1948Please respect copyright.ＰＥＮＡＮＡ8WVMPL3ACo
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/toc1948Please respect copyright.ＰＥＮＡＮＡn15tcLWRwz
1948Please respect copyright.ＰＥＮＡＮＡSBDK7LPUxv
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。1948Please respect copyright.ＰＥＮＡＮＡeoRK6Ff6x1
1948Please respect copyright.ＰＥＮＡＮＡWzhRTmMPo2
Link:1948Please respect copyright.ＰＥＮＡＮＡMm85zjUVWO
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1948Please respect copyright.ＰＥＮＡＮＡ83SBihH1Tt
1948Please respect copyright.ＰＥＮＡＮＡAlhnDexnpO
1948Please respect copyright.ＰＥＮＡＮＡERv9Ve79RY
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。1948Please respect copyright.ＰＥＮＡＮＡTJjyUuxGV6
1948Please respect copyright.ＰＥＮＡＮＡV7RrXSCzFD
Ref1:https://www.nature.com/articles/s41598-020-68860-z1948Please respect copyright.ＰＥＮＡＮＡOcLHjaZf8S
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