
报告题目
Pleiotropic shared heritability quantifies the shared genetic variance of common diseases
报告时间
北京时间2026年6月25日 20:30
报告人
赵钰洁
博士研究生
复旦大学
主持人
赵亚杰
昌平实验室
报告人简介
赵钰洁,现为复旦大学类脑智能科学与技术研究院博士生,于2024-2025年在哈佛大学公共卫生学院进行访问学习,主要研究方向为复杂疾病的遗传多效性结构,以第一作者发表论文于Nature Genetics,Nature Mental Health等期刊。
报告简介
The overall contribution of pleiotropy to disease architectures is unknown, as most studies estimate genetic correlations with each auxiliary disease in turn. We propose a method, pleiotropic shared heritability with bias correction (PHBC), to estimate the liability-scale genetic variance of a target disease that is shared with a specific set of auxiliary diseases (h²pleio / h²). PHBC estimates h²pleio from a genetic correlation matrix using a Monte-Carlo bias correction procedure to account for sampling noise. The average ratio of h²pleio to total SNP-heritability (h²pleio / h²) across 15 UK Biobank diseases (spanning 7 disease categories) was 27±3%, increasing to 48±5% when expanding to 62 auxiliary diseases/traits. h²pleio / h² was broadly distributed across disease categories, decreasing only modestly when removing the most informative auxiliary disease categories. Average h²pleio / h² was 1.51±0.16× larger than the proportion of total phenotypic variance explained by auxiliary diseases, implying higher pleiotropy for genetic effects. In conclusion, roughly half of common disease heritability is pleiotropic with a broad range of diseases.
讨论嘉宾
袁中尚 山东大学
熊旭深 浙江大学
马诗洋 上海交通大学
吴洋 四川大学
参加分享
腾讯会议:675-877-713
来源:GSC_大人群
会员注册
会员登录