
除髮色膚色外,耳垢(cerumen)也有種族之分的。646Please respect copyright.PENANAuSFPjqSD2X646Please respect copyright.PENANAzqhQjCa9oy
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(圖2)有研究指出(Ref1),80-95%的東亞地區人,30-50%的南亞、北美人,646Please respect copyright.PENANApIC5EtYX8F
耳垢均呈乾身狀態。646Please respect copyright.PENANAHtt4SRCeIg
然而,只有3%左右的歐洲及非洲人擁有這個乾身耳垢特質。646Please respect copyright.PENANABykpfBzIGI646Please respect copyright.PENANAnWm6DaG6NJ
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經一輪比對後,科學家認為共有四條基因對耳垢到底是濕是乾有著重大的影響力,分別為ABCC12, ABCC11, LONPL and SIAH1。646Please respect copyright.PENANALkveMiH8nB
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(圖3)研究中的126名日本人,有88名乾身耳垢人士,38名濕身耳垢人士。646Please respect copyright.PENANAEHNzvOjpRa646Please respect copyright.PENANAFEcWAX9cg5
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乾身耳垢88人之中,87人兩條ABCC11基因某個區域均為AA英文字母。646Please respect copyright.PENANAZ2gWiI4dWc
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而濕身耳垢38人之中,兩條ABCC11基因某個區域均為GG英文字母,又或者是一條基因為A,一條基因為G。646Please respect copyright.PENANAcc0GSlrEtJ
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其後科學家亦證實,該基因區域的英文字母,將對ABCC11蛋白質的功用有著重大的影響。646Please respect copyright.PENANAOTTTBRkZ6Z
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耳垢是濕是乾,對健康有沒有影響暫時尚未清楚。現今開始亦有研究嘗試透過檢測耳垢的狀況來判斷人體的健康狀況,處於初步及有爭論性的階段之中。646Please respect copyright.PENANAMlMedbvkMq
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各種族的ABCC11基因變異情況,可參閱這圖表:https://www.nature.com/articles/ng1733/tables/1646Please respect copyright.PENANAixSUpbUQ9S
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說到尾,你的耳垢,是乾還是濕呢?646Please respect copyright.PENANAu2lCIqDL4j
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。646Please respect copyright.PENANAiaDQ0xZO6b
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https://www.instagram.com/potatopigtongue/646Please respect copyright.PENANAyAMdLcILE8
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Ref1:https://www.nature.com/articles/ng1733646Please respect copyright.PENANAt1Ubm80eJe
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耳垢圖取自wiki:https://en.wikipedia.org/wiki/Earwax646Please respect copyright.PENANAMbme8oHzBW