诊断和未诊断的乳病之间的遗传差异:一个基于人口的研究
Mohammad Sayeef Alam1,2, Brooke N Wolford3, Kristian Hveem3
1HUNT Center for Molecular and Clinical Epidemiology, NTNU, Norwegian University of Science and Technology, Trondheim, Norway. mohammad.s.alam@ntnu.no.
Human genetics
|September 29, 2025
概括
许多乳病 (CeD) 病例未被诊断,呈现出各种症状. 多遗传风险评分 (PRS) 在已知和新诊断的CeD个体中显示出相似的遗传风险,这表明非遗传因素影响成人发病.
科学领域:
- 遗传学 遗传学 是一个
- 胃肠病学 胃肠病学
- 流行病学 流行病学
背景情况:
- 结核病 (CeD) 的诊断往往是延迟的,许多人在生命的晚期出现或有异常症状.
- 这种诊断异质性可能源于影响疾病表现的潜在遗传变异.
- 了解诊断和未诊断的CeD群体中的遗传因素对于改善检测和管理至关重要.
研究的目的:
- 为了比较基因变异,特别是使用多基因风险评分 (PRS),在之前诊断的CeD病例和新发现的病例之间,在一个选的成年人群中.
- 调查已知和新诊断的乳病患者之间的遗传结构差异或相似之处.
- 评估经过验证的PRS在将CeD病例与普通人群区分开来时的预测准确性.
主要方法:
- 利用了来自特伦德拉格健康研究 (HUNT4) 的数据,包括826个CeD病例 (361个已知病例,465个新病例) 和51516个非CeD个体.
- 应用了验证的多基因风险评分 (PRS) 来评估CeD病例与对照病例的遗传倾向.
- 分析了PRS以外的其他遗传变异,以确定与CeD的潜在关联.
主要成果:
- 该PRS在区分CeD病例 (已知的和新的) 与非病例 (AUROC分别为85%和83%) 方面表现出高准确度.
- 在已知的 (17.1%) 和新的 (14.5%) CeD 病例中,PRS 解释了基因变异的比例相当.
- 在最高遗传风险组 (前10%) 的个体中,患有CeD的几率显著增加 (已知病例为22.7,新病例为18.6).
结论:
- 经过验证的PRS有效地识别了CeD病例与普通人群之间的遗传差异.
- 在以前诊断的和新诊断的CeD个体之间,遗传结构似乎是相似的.
- 非遗传因素可能在成人乳病呈现的异质性中发挥重要作用.
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