在印度北部,介素-18细胞因子基因多态 137G/C (rs187238) 和对结核病的易感性
Karan Gupta1, Vibha Uppal1, Pranav Ish2
1Department of Biochemistry, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi.
概括
结核病 (TB) 是主要的传染性死亡原因. 这项研究发现,一种特定的Interleukin-18 (IL-18) 基因变异 (rs187238) 和其C等位基因显著降低了北印度的结核病风险.
科学领域:
- 免疫遗传学 免疫遗传学
- 传染性疾病 传染性疾病
- 分子流行病学分子流行病学
背景情况:
- 结核病 (TB) 仍然是全球主要的健康威胁,宿主基因影响了易感性.
- 介素-18 (IL-18) 是一种促炎细胞因子,在对抗Mycobacterium tuberculosis的免疫反应中起作用.
研究的目的:
- 在北印度人口中调查IL-18基因多态 (rs187238) 和结核病易感性之间的关联.
- 确定这种多形态对血清IL-18水平的影响.
主要方法:
- 一项涉及100名结核病患者和100名健康对照者的病例控制研究.
- 使用PCR-RFLP对IL-18基因多态性的分析 (rs187238).
- 通过ELISA量化血清IL-18水平.
主要成果:
- 与对照组相比,结核病患者的血清IL-18水平显著提高 (p<0.01).
- IL-18 rs187238的GC/CC基因型与降低结核病风险相关 (OR=0.31,p=0.0167).
- 这种C等位基因对结核病具有保护作用 (OR=0.33,p<0.0001),而IL-18水平因基因型而异.
结论:
- IL-18 rs187238多态性影响北印度的结核病易感性.
- 显然,C等位基因和GC/CC基因型对结核病有保护作用,可能是通过调节IL-18水平.
- IL-18 rs187238多态可能作为结核病风险的预测标记.
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