结核病与干扰素玛基因中的多态NFkappaB结合位之间存在关联
Manda Rossouw1, Hendrik J Nel, Graham S Cooke
1MRC Centre for Molecular and Cellular Biology and Department of Medical Biochemistry, Faculty of Health Sciences, Stellenbosch University, 7505, Tygerberg, South Africa.
Lancet (London, England)
|June 6, 2003
概括
干扰素玛 (IFNG) 的特定基因变异与结核病易感性有关. 这种遗传因素影响宿主防御机制,可能会影响结核病的发展.
科学领域:
- 免疫遗传学 免疫遗传学
- 传染性疾病 传染性疾病
- 分子生物学分子生物学
背景情况:
- 干扰素玛 (IFNG) 在对各种感染的宿主防御中起着至关重要的作用.
- IFNG基因内的遗传变异可能会影响对结核病等传染病的易感性.
研究的目的:
- 调查干扰素玛基因 (IFNG) 中特定多态性和对结核病易感性之间的关联.
- 为了确定IFNG中的遗传变异是否会影响患结核病的风险.
主要方法:
- 一项涉及313例结核病例和南非人口的病例控制研究.
- 一项基于家庭的研究,利用131个家庭的传播不平衡测试.
- 在IFNG基因中的+874A-->T多态的分析.
主要成果:
- 在IFNG中的+874A-->T多态和南非人口中的结核病之间发现了显著的关联 (p=0.0055).
- 这种关联在基于家庭的研究中成功复制 (p=0.005).
- 转录因子NFkappaB优先结合+874T等位基因,在对照组中更常见.
结论:
- 由+874A-->T多态影响的干扰素玛表达的遗传决定变异可能在结核病的发病过程中很重要.
- 这些发现表明,IFNG遗传变异性在结核病易感性中起着作用.
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