在零星的胸腔大动脉剖析中X相关的遗传关联
Fadi I Musfee1,2, Goo Jun1, Laura E Mitchell1
1Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
American journal of medical genetics. Part A
|April 30, 2024
概括
这项研究探讨了胸前大动脉动脉瘤和解剖 (TAD) 的X相关遗传变异. 虽然大多数发现并不显著,但它确定了与SPANXN1,ZNF182和RTL9的潜在关联,需要对X染色体进行进一步调查.
科学领域:
- 遗传学 是一个遗传学.
- 心血管疾病 心血管疾病
- 人类遗传学 人类遗传学
背景情况:
- 在零星胸前大动脉动脉瘤和解剖 (TAD) 中男性占主导地位表明X相关遗传因素可能起作用.
- 以前的研究还没有全面测试X染色体变异和零星TAD之间的关联.
- 了解TAD的遗传贡献对于制定有针对性的预防和治疗策略至关重要.
研究的目的:
- 调查常见和罕见的X相关遗传变异与零星胸前大动脉动脉瘤和解剖 (TAD) 之间的关联.
- 分析来自欧洲血统的三个独立队伍的遗传数据,以确保可靠的发现.
- 为了确定特定的X链基因或变异,有助于发展零星TAD的风险.
主要方法:
- 用于常见变体的性别分层后勤回归 (小等位基频率 [MAF] ≥0.01) 和罕见变体的性别分层优化序列内核关联测试 (MAF <0.01).
- 分析了来自三个队列的数据:发现 (364例,874对照),复制 (516例,440,131对照) 和社区动脉样硬化风险 (ARIC) 研究 (753例,2247对照).
- 在发现和复制队列之间进行了对常见变体和重叠变体的性别特异赔率比率的元分析.
主要成果:
- 在发现队列中的常见变异中没有发现统计学意义上的关联.
- 在复制队列 (p=1.81×10−8) 中,SPANXN1附近的一种常见的跨基因变异达到统计学意义.
- 一种ZNF182内部常见变体在发现和复制队列的元分析中显示了最高的信号 (p=3.5×10−6),而罕见的变体RTL9达到统计学意义 (p=5.15×10−5).
结论:
- 这项综合性分析代表了迄今为止对X染色体与零星TAD相关性的最广泛的研究.
- 虽然大多数结果在统计学上并不显著,但与SPANXN1,ZNF182和RTL9附近变异的潜在关联需要进一步研究.
- 这些发现表明,X链接遗传因素在零星胸前大动脉动脉瘤和剖析的病因学中可能发挥着复杂的作用.
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