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英科学家发现男人脱发秃顶根本原因

Source: 恒星英语学习网  Onion  2011-01-10  我要投稿   论坛   Favorite  
  The University of Pennsylvania team compared hair follicles in bald patches and hairy areas of the scalp. Although bald areas had the same number of hair-making stem cells as normal scalp, there were fewer of a more mature type, called the progenitor cell. This difference means that hair follicles in bald patches shrink rather than disappear and the new hairs made are microscopic compared to normal hair.

  宾夕法尼亚大学科研人员对比研究了秃发区域的头发毛囊与正常头皮的毛囊。他们发现,虽然秃发区域制造头发的干细胞数量与正常区域的数量是一样的,但前者成熟的祖细胞数量要少一些。这说明秃发区域的头发毛囊缩小而不是消失,这些缩小的头发只能用显微镜才能看到。

  Dr George Cotsarelis who led the research said: "This implies that there is a problem in the activation of stem cells converting progenitor cells in bald scalp. The fact that there are normal numbers of stem cells in bald scalp gives us hope for reactivating those stem cells."

  负责这项研究的乔治 考特塞偌里斯博士说:“这暗示着秃发区域的干细胞在转化为祖细胞的过程中出现了问题。在秃发区域有正常数量的干细胞这个事实给了我们重新激活它们的希望。”

资料图:英科学家发现男性秃发的“根本原因”

  Until now it has been unclear what the exact cause of male pattern baldness is, but experts believe the male hormone testosterone is involved and baldness also tends to run in families.

  到目前为止,男性秃发的确切原因是什么还没有一个明确的答案,但是专家们相信男性荷尔蒙和家族遗传与之有关。


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