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。1952Please respect copyright.ＰＥＮＡＮＡBdyagNayXq
1952Please respect copyright.ＰＥＮＡＮＡFKG40uYwhG
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。1952Please respect copyright.ＰＥＮＡＮＡC64uSpgixT
1952Please respect copyright.ＰＥＮＡＮＡEvN5y8le8W
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。1952Please respect copyright.ＰＥＮＡＮＡkEtaXpREG4
1952Please respect copyright.ＰＥＮＡＮＡ6LzQs8BWBr
1952Please respect copyright.ＰＥＮＡＮＡBiwzm2qkXj
（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1952Please respect copyright.ＰＥＮＡＮＡifYCzabNaE
(Apocrine Sweat Glands)1952Please respect copyright.ＰＥＮＡＮＡe8yX7XPbei
1952Please respect copyright.ＰＥＮＡＮＡnZoogtItqG
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。1952Please respect copyright.ＰＥＮＡＮＡl2BMVkAaqj
1952Please respect copyright.ＰＥＮＡＮＡpvzeiFgZt8
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。1952Please respect copyright.ＰＥＮＡＮＡJfVnZvrjyL
1952Please respect copyright.ＰＥＮＡＮＡenAEGhfhqe
而大汗腺的主要功能，到目前為止仍未能搞得清楚。1952Please respect copyright.ＰＥＮＡＮＡeJbhdQPEOG
1952Please respect copyright.ＰＥＮＡＮＡ8LYalF9Cut
1952Please respect copyright.ＰＥＮＡＮＡJbWSUGcun3
1952Please respect copyright.ＰＥＮＡＮＡuVCMGctQPz
（圖2）下列三點為文中所找出的異味散發機制。1952Please respect copyright.ＰＥＮＡＮＡP0b2IitYS7
1952Please respect copyright.ＰＥＮＡＮＡwyK3D1LtU0
1.大汗腺釋出無味物質Cys-Gly-3M3SH。1952Please respect copyright.ＰＥＮＡＮＡ5gG4qqKWhj
1952Please respect copyright.ＰＥＮＡＮＡmuU9InI6A7
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。1952Please respect copyright.ＰＥＮＡＮＡfhGsbRGPZ8
1952Please respect copyright.ＰＥＮＡＮＡrGZlsCtyFC
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。1952Please respect copyright.ＰＥＮＡＮＡU55IKYVvev
1952Please respect copyright.ＰＥＮＡＮＡBk4TsmlfvZ
換句話說，腋下的異味就是由這些細菌引致而成的。1952Please respect copyright.ＰＥＮＡＮＡhUh8tfbWtt
1952Please respect copyright.ＰＥＮＡＮＡ2XB5oSwHF7
1952Please respect copyright.ＰＥＮＡＮＡzjh5j1H9WK
1952Please respect copyright.ＰＥＮＡＮＡVgT1EEIsAy
（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。1952Please respect copyright.ＰＥＮＡＮＡ3JA6x43TfD
1952Please respect copyright.ＰＥＮＡＮＡ4GVDhBaY0Y
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。1952Please respect copyright.ＰＥＮＡＮＡqKu9TGjMgb
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。1952Please respect copyright.ＰＥＮＡＮＡ6YSXiFezzJ
1952Please respect copyright.ＰＥＮＡＮＡxLKvKWE9Cx
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；1952Please respect copyright.ＰＥＮＡＮＡ09sqpm4lrc
1952Please respect copyright.ＰＥＮＡＮＡpBW8swxo9m
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。1952Please respect copyright.ＰＥＮＡＮＡV39VYH1tUD
1952Please respect copyright.ＰＥＮＡＮＡPwJfM5YyjY
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。1952Please respect copyright.ＰＥＮＡＮＡtcowiVfugD
1952Please respect copyright.ＰＥＮＡＮＡrMXAs1VygJ
1952Please respect copyright.ＰＥＮＡＮＡhtq45WKduF
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。1952Please respect copyright.ＰＥＮＡＮＡ4lWh3pQAj0
1952Please respect copyright.ＰＥＮＡＮＡ1J3nQWsk9T
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/toc1952Please respect copyright.ＰＥＮＡＮＡs0dcE5p4ff
1952Please respect copyright.ＰＥＮＡＮＡhhlgGmGrRz
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。1952Please respect copyright.ＰＥＮＡＮＡxoq5rkpsEz
1952Please respect copyright.ＰＥＮＡＮＡeJzun31jJb
Link:1952Please respect copyright.ＰＥＮＡＮＡyaM1c9bj66
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1952Please respect copyright.ＰＥＮＡＮＡr7x5iiVuOl
1952Please respect copyright.ＰＥＮＡＮＡHIe0rtXfH7
1952Please respect copyright.ＰＥＮＡＮＡ9YjCFLnPbE
有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。1952Please respect copyright.ＰＥＮＡＮＡgJIH5NBX9R
1952Please respect copyright.ＰＥＮＡＮＡ4QnqS9QikT
Ref1:https://www.nature.com/articles/s41598-020-68860-z1952Please respect copyright.ＰＥＮＡＮＡUe71zJOkTP
Penana
search
Loginarrow_drop_down
Registerarrow_drop_down
