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。2094Please respect copyright.ＰＥＮＡＮＡxDDMMzxMnO
2094Please respect copyright.ＰＥＮＡＮＡ3yg7TwK1R4
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。2094Please respect copyright.ＰＥＮＡＮＡPqlH0UG1PL
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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。2094Please respect copyright.ＰＥＮＡＮＡBjNGu7f2Yi
2094Please respect copyright.ＰＥＮＡＮＡLhAZtR8gNM
2094Please respect copyright.ＰＥＮＡＮＡJzcB7HTv5s
（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2094Please respect copyright.ＰＥＮＡＮＡB1Jmwn4bwW
(Apocrine Sweat Glands)2094Please respect copyright.ＰＥＮＡＮＡYB2cU9I8Ir
2094Please respect copyright.ＰＥＮＡＮＡDv2Zu86A7W
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。2094Please respect copyright.ＰＥＮＡＮＡV5mPwPirHN
2094Please respect copyright.ＰＥＮＡＮＡh95qDUtw9b
外分泌汗腺的主要功能就是散發汗水幫助散熱，調節體溫。2094Please respect copyright.ＰＥＮＡＮＡXvGXYEk2O2
2094Please respect copyright.ＰＥＮＡＮＡkitp4TuIRE
而大汗腺的主要功能，到目前為止仍未能搞得清楚。2094Please respect copyright.ＰＥＮＡＮＡ2Wneugd7Iy
2094Please respect copyright.ＰＥＮＡＮＡYqS5WoyHDv
2094Please respect copyright.ＰＥＮＡＮＡCTk8Knd5KE
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（圖2）下列三點為文中所找出的異味散發機制。2094Please respect copyright.ＰＥＮＡＮＡCCxclX29Sk
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1.大汗腺釋出無味物質Cys-Gly-3M3SH。2094Please respect copyright.ＰＥＮＡＮＡIAQ5uzSpyr
2094Please respect copyright.ＰＥＮＡＮＡAfgIka7CyX
2.腋下某品種的葡萄球菌消化Cys-Gly-3M3SH。2094Please respect copyright.ＰＥＮＡＮＡoRep2tbBN3
2094Please respect copyright.ＰＥＮＡＮＡazF0uQ9HHT
3. 葡萄球菌消化過後，吐出帶有異味的3M3SH。2094Please respect copyright.ＰＥＮＡＮＡCsOq0IIZiN
2094Please respect copyright.ＰＥＮＡＮＡUEXFLM2GjE
換句話說，腋下的異味就是由這些細菌引致而成的。2094Please respect copyright.ＰＥＮＡＮＡnnA9hf1lTG
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2094Please respect copyright.ＰＥＮＡＮＡOnlOoP4NIG
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（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。2094Please respect copyright.ＰＥＮＡＮＡpF6gwDtiDB
2094Please respect copyright.ＰＥＮＡＮＡPXX0igZzMV
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。2094Please respect copyright.ＰＥＮＡＮＡ6uRp29DCCo
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。2094Please respect copyright.ＰＥＮＡＮＡAfkAV4i9wq
2094Please respect copyright.ＰＥＮＡＮＡQ7nAoLDJmn
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；2094Please respect copyright.ＰＥＮＡＮＡXICjihcbXp
2094Please respect copyright.ＰＥＮＡＮＡRcds9EU7Tm
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。2094Please respect copyright.ＰＥＮＡＮＡfnzIfzf6S2
2094Please respect copyright.ＰＥＮＡＮＡUoDJcXC7NT
而臭狐是否由這細菌引起或有份參與，文中並沒有提及。2094Please respect copyright.ＰＥＮＡＮＡnEPHFLDFZY
2094Please respect copyright.ＰＥＮＡＮＡXAT7tzp5wI
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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。2094Please respect copyright.ＰＥＮＡＮＡNJ1GHtreQv
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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/toc2094Please respect copyright.ＰＥＮＡＮＡbpqb8MZUnB
2094Please respect copyright.ＰＥＮＡＮＡFTktM9BWjA
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。2094Please respect copyright.ＰＥＮＡＮＡdNn1OStWbb
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Link:2094Please respect copyright.ＰＥＮＡＮＡ4Bu6rwFJvZ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio2094Please respect copyright.ＰＥＮＡＮＡmgL9qljF77
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有興趣接收科普資訊的話，歡迎follow IG: potatopigtongue。2094Please respect copyright.ＰＥＮＡＮＡpiLNXY9hu0
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Ref1:https://www.nature.com/articles/s41598-020-68860-z2094Please respect copyright.ＰＥＮＡＮＡ1VqCPQtJhK
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