Nature:红头发的人易得黑色素瘤被揭密

2018-02-14 MedSci MedSci

红发人占全球人口的1-2%,但占英国民众的比例约6%。他们携带了2个黑色素突变基因,导致白皮肤、雀斑和红色头发的出现。人们普遍认为,皮肤过多接受紫外线的照射会增加DNA破坏的风险。但是并不是每个人的DNA都容易被紫外线破坏。红头发和白皮肤的民众较为敏感,他们的DNA容易受到紫外线破坏。过去认为,红色头发民众的突变黑色素基因生成黑色素的能力降低,进而保护皮肤免受紫外线伤害的能力降低。 一提到红头发

红发人占全球人口的1-2%,但占英国民众的比例约6%。他们携带了2个黑色素突变基因,导致白皮肤、雀斑和红色头发的出现。人们普遍认为,皮肤过多接受紫外线的照射会增加DNA破坏的风险。但是并不是每个人的DNA都容易被紫外线破坏。红头发和白皮肤的民众较为敏感,他们的DNA容易受到紫外线破坏。过去认为,红色头发民众的突变黑色素基因生成黑色素的能力降低,进而保护皮肤免受紫外线伤害的能力降低。见报道:别以为长出红头发就是个性,患癌风险增加你知道么? 一提到红头发,很多人自然而然的就想到了爱尔兰和苏格兰,苏格兰红发人种占全球比例最大,据估计,40%的苏格兰人携带红发基因,而13%的苏格兰人长着一头炫目红发。但是,世事无绝对,除了上述两个国家,在世界上很多地方,都有红发的出现,美国摄影师BrianDowling就以此为题,拍摄了20多个国家超过130位“红发美女”。 最近,研究人员发现红头发的人患上皮肤癌的风险增加,他们体内存在 Melanocortin 1 Receptor (MC1R),这是一种对人体色素沉积起关键作用的蛋白质,但是这种突变是如何影响患癌风险,以及这种风险是否可以逆转,迄今为止还是

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    2018-02-17 liye789132251
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    2018-12-01 sunylz
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    2018-02-16 qindq
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  6. [GetPortalCommentsPageByObjectIdResponse(id=1882858, encodeId=7ee1188285826, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 17 05:13:00 CST 2018, time=2018-02-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1680500, encodeId=c62a16805003d, content=<a href='/topic/show?id=9e5c86e0712' target=_blank style='color:#2F92EE;'>#色素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86707, encryptionId=9e5c86e0712, topicName=色素)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=343027846633, createdName=sunylz, createdTime=Sat Dec 01 18:13:00 CST 2018, time=2018-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1468599, encodeId=df9614685992f, content=<a href='/topic/show?id=7f7f443337a' target=_blank style='color:#2F92EE;'>#头发#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44333, encryptionId=7f7f443337a, topicName=头发)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f09e6924959, createdName=qindq, createdTime=Fri Feb 16 12:13:00 CST 2018, time=2018-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558880, encodeId=215f15588800f, content=<a href='/topic/show?id=e27610332666' target=_blank style='color:#2F92EE;'>#黑色素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103326, encryptionId=e27610332666, topicName=黑色素)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=150614999302, createdName=cqlidoudou, createdTime=Fri Feb 16 12:13:00 CST 2018, time=2018-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564889, encodeId=edae1564889ab, content=<a href='/topic/show?id=e27610332666' target=_blank style='color:#2F92EE;'>#黑色素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103326, encryptionId=e27610332666, topicName=黑色素)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=150614999302, createdName=cqlidoudou, createdTime=Fri Feb 16 12:13:00 CST 2018, time=2018-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=288149, encodeId=1b462881494f, content=这是一个冷知识.以后可以向同行吹牛了., beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Thu Feb 15 09:57:27 CST 2018, time=2018-02-15, status=1, ipAttribution=)]
    2018-02-15 lovetcm

    这是一个冷知识.以后可以向同行吹牛了.

    0

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