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The distribution of the endogenous retroviruses HERV-K113 and HERV-K115 in health and disease.

机译:内源性逆转录病毒HERV-K113和HERV-K115在健康和疾病中的分布。

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摘要

The human endogenous retroviruses HERV-K113 and HERV-K115 are full-length proviruses but unusual in being found in only a proportion of the population. Here, we study the geographic distribution of these HERVs and their prevalence in autoimmune disease. The frequency of HERV-K113 and HERV-K115 in 174 individuals from Africa was 21.8 and 34.1%, respectively, compared to 4.16 and 1% in 96 people in the United Kingdom (p < 0.001). Prevalence in Yemen (n = 56) was 8 and 7.14% and in Papua New Guinea (n = 54) 0% for both. In the United Kingdom, HERV-K113 was found in 15.6% of 96 Sjogren's syndrome patients (p < 0.01) and 11.9% of 109 multiple sclerosis patients (p < 0.05). No increase in prevalence in either disease was seen with HERV-K115. These data suggest that both viruses are recently integrated and/or under positive evolutionary selection pressure. HERV-K113 may be a genetic risk factor for some types of autoimmunity.
机译:人类内源性逆转录病毒HERV-K113和HERV-K115是全长原病毒,但仅在一部分人群中发现。在这里,我们研究了这些HERV的地理分布及其在自身免疫性疾病中的患病率。来自非洲的174人中HERV-K113和HERV-K115的发生率分别为21.8和34.1%,而英国的96人中为4.16和1%(p <0.001)。在也门(n = 56)的患病率分别为8%和7.14%,在巴布亚新几内亚(n = 54)的患病率均为0%。在英国,HERV-K113在96例干燥综合征患者中占15.6%(p <0.01),在109例多发性硬化症患者中发现11.9%(p <0.05)。 HERV-K115在这两种疾病中的患病率均未增加。这些数据表明,两种病毒最近都已整合和/或处于积极的进化选择压力下。 HERV-K113可能是某些类型自身免疫的遗传危险因素。

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