单卵双胞胎中的一致性:常见遗传变异的作用
Yew Li Dang1,2, Karen L Oliver1,3, Kate Esnault1
1Department of Medicine (Austin Health), Epilepsy Research Centre, The University of Melbourne, Melbourne, Victoria 3084, Australia.
常见的遗传变异有助于同卵双胞胎的. 在一致双胞胎中,较高的多基因风险得分表明遗传倾向增加,有助于预测风险.
科学领域:
- 遗传学 是一个遗传学.
- 的研究研究.
- 双胞胎研究 双胞胎研究
背景情况:
- 了解单卵性双胞胎中的一致性至关重要,特别是当没有获得原因时.
- 常见的遗传变异在的作用仍然在很大程度上未被探索.
- 多基因风险评分提供了一种方法来量化常见遗传变异的影响.
研究的目的:
- 通过多基因风险评分,调查常见遗传变异对单胞胎双胞胎症一致性的贡献.
- 为了比较一致,不一致的单胞胎双胞胎和对照之间的多基因风险得分.
- 评估多基因风险评分作为风险预测标志物的潜力.
主要方法:
- 计算了102个单胞胎双胞胎对 (49个一致,53个不一致) 和14632个对照的多原风险评分.
- 利用了2023年发作全基因组关联研究总结统计.
- 使用后勤回归,调整性别和主要祖先组件.
主要成果:
- 与不一致的双胞胎相比,一致的单胞胎双胞胎对表现出明显更高的多原风险得分 (平均值为0.71比0.18;Paj = 0.03).
- 同对的得分也明显高于对照组 (平均值为0.71比0;Paj=0.001).
- 不一致对的多原性风险得分与对照没有显著差异 (平均值0.18比0;Paj=0.38).
结论:
- 共同的遗传变异负担部分驱动了单胞胎双胞胎中的.
- 多原风险评分显示,可能成为一般人群中风险的预测标志物.
- 这些发现突出了影响风险和一致性的遗传成分.
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