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Vitiligo (also called "leukoderma") is a common skin disease in which there is loss of pigment from areas of the skin resulting in irregular white spots or patches. The skin has normal texture. Vitiligo may appear at any age. Although it is a progressive condition, many people experience years or decades without developing new spots.
Vitiligo is not contagious in any way. The precise cause of Vitiligo is not well-understood, though researchers are getting closer to knowing more. Many experts believe that vitiligo is the result of one or a combination of genetic, immunologic, biochemical and neurogenic factors. Susceptibility to vitiligo may be genetic. It is often, though not always, seen in families. It is thought by many experts that Vitiligo is an autoimmune related disorder, meaning a condition in which the body's immune system attacks on its own tissue or cells, in this case, the melanocytes (pigment cells which give the skin its color). This does not necessarily represent a weak or deficient immune system, but one which may be malfunctioning or misdirected. Other research has centered on vitamin deficiencies, and internal pathogens. Though the condition has no other known effects on the body, the psychological and social effects are well documented.
Vitiligo is more noticeable in darker skinned people because of the contrast, although when they tan, even lighter skinned people are affected. This condition affects about .05%-1% of the world population. In some countries, the incidence is even higher. Worldwide, there are thought to be more than 100 million people with the condition. Vitiligo appears to be as old as the recorded history of man - it is mentioned in the Bible, and there are references to it in ancient Egyptian, Greek and Chinese writings.
Today, vitiligo is a treatable condition, though treatment can take two years or longer to regain pigment, though repigmentation may not be 100%. There is more research being conducted than ever before; in Europe, in Asia, and in the U.S., new technologies and research are changing physicians' approaches to the condition. The recent mapping of the human genome has paved the way for advanced genetic research into vitiligo, and other cell-based theories are also gaining attention.
Many experts believe that with genetic and biomedical technology improving as they are, that within the next few years, we will see a greater understanding of vitiligo, as well as faster and more reliable treatments for this, and other autoimmune conditions.
Read MUCH more about vitiligo in our FAQ (Frequently Asked Questions) page.
白癫风(也被称为“leukoderma”)是一种常见的皮肤疾病,其中有色素损失的皮肤造成不规则的白色斑点或斑块。皮肤有正常的纹理。白癫风可发生于任何年龄的人。尽管这是一个循序渐进的条件下,很多人还是几十年没有开发新的景点。
白癫风是没有传染性的。精确的原因,但并未普及白癜风研究者正越来越接近知道的更多。许多专家相信,白癜风的结果是一种或多种基因、免疫学、生化和神经源性因素。可能是遗传易感性白癜风。通常,但不总是出现在家庭。它是由许多专家认为,白癫风是一种自身免疫性相关的混乱,意思是机体的免疫系统攻击自身的组织或细胞,在这种情况下,黑素细胞色素细胞(即皮肤的颜色)。但这并不代表一个弱或免疫缺陷,但可故障或签名。其他的研究集中在缺乏维生素、内部病原体。虽然没有其它已知的条件下对身体的影响时,心理和社会效果良好的文档。
白癫风是黑皮肤的人更明显的对比,即使当他们棕褐色皮肤的人,就会受到影响。这种情况影响了大约世界人口的.05%-1%。在一些国家中,发病率更高。世界范围内,有超过100万人。白癫风似乎一样古老的历史记录的人——这是圣经中提到,有提到它在古埃及、希腊和中国的著作。
今天,白癫风是一种治愈的情况,但治疗可以带两个十年甚至更长时间,虽然repigmentation重新色素,不可能100%。还有更多的研究正在进行了比以往任何时候都多,在欧洲、亚洲和美国,新技术和研究正在改变医生的方法。最近的映射的人类基因组已铺好了路,先进的遗传研究的理论基础,其他也在增加的注意。
许多专家相信,基因和生物技术的提高,在未来几年内,我们将会看到一个更大的理解中,以及更快、更可靠的治疗,以及其他的自身免疫病。
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发表于 2009-9-28 09:27:44
又是这样空泛的纯理论。
楼主