The year's best pictures from the world of medicine
[ 2009-10-21 11:41 ]
10 镰状细胞贫血症血红细胞
这张图片显示了两个血红细胞。背景中显示的一个正常的红细胞,而前景显示的是一个受到镰状细胞贫血症感染侵蚀的血红细胞。镰状细胞贫血症是一种血液疾病,可导致细胞形成特殊的形状,从而改变其携带血红蛋白的能力。
镰状细胞贫血是20世纪初才被人们发现的一种遗传病。1910年,一个黑人青年到医院看病,他的症状是发烧和肌肉疼痛,经过检查发现,他患的是当时人们尚未认识的一种特殊的贫血症,他的红细胞不是正常的圆饼状,而是弯曲的镰刀状。后来,人们就把这种病称为镰刀型细胞贫血症。镰刀型细胞贫血症主要发生在黑色人种中,在非洲黑人中的发病率最高,在意大利、希腊等地中海沿岸国家和印度等地,发病人数也不少。
This image shows two red blood cells. A normal red blood cell is shown as a background to a red blood cell affected by sickle-cell anaemia. Sickle-cell anaemia is a blood disease that causes the cell to form this characteristic shape, which affects its ability to carry haemoglobin. It is a genetic disorder caused when a person has two copies of a certain gene. It is common in countries where malaria is prevalent, as carrying one copy of the sickle-cell gene provides resistance to malaria. (Image: Jackie Lewin/EM Unit/UCL Medical School) [NewScientist]
(来源:NewScientist/MSN资讯 英语点津姗姗编辑)
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