多基因风险评分对眼内压力或垂直杯盘比率的预测能力
Weixiong He1,2, Samantha Sze-Yee Lee3, Santiago Diaz Torres1,2
1Queensland Institute of Medical Research Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
JAMA ophthalmology
|November 21, 2024
概括
对于眼内压力 (IOP) 和垂直杯盘比 (VCDR) 的多基因风险评分 (PRS) 对早期青光眼的检测有希望. 这些遗传风险评估可以识别有风险的个体,即使是正常的IOP,帮助及时干预.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 公共卫生 公共卫生
背景情况:
- 早期发现青光眼对于有效的管理和治疗至关重要.
- 眼内压力 (IOP) 和垂直杯盘比 (VCDR) 是评估初级开角青光眼风险的关键指标.
- 多基因风险评分 (PRS) 整合了来自全基因组关联研究 (GWAS) 的遗传变异,以估计个体的遗传倾向.
研究的目的:
- 为IOP和VCDR开发和验证具有显著预测能力的PRS.
- 评估PRS在识别患青光眼风险较高的人群中的临床实用性.
主要方法:
- 一项基因关联研究使用了加拿大长度衰老研究 (CLSA) 和布塞尔顿健康衰老研究 (BHAS) 的数据进行.
- 在CLSA队列中使用人工智能方法来准确估计VCDR.
- 开发的PRS的预测能力使用来自英国生物银行的数据进行了验证.
主要成果:
- VCDR PRS解释了VCDR中显著的表型变异 (22.0%在CLSA中,19.7%在BHAS中).
- IOP PRS解释了IOP显著的表型变异 (12.9%在CLSA,9.6%在BHAS).
- 在不同种族的人口中,PRS表现出不同的预测能力,具有显著的结果 (P < .001).
结论:
- 来自多特征GWAS的VCDR和IOP的PRS在独立队列中有效.
- IOP PRS可以识别可能受益于强化IOP降压治疗的个体.
- 高VCDRPRS表明青光眼的风险,即使正常的内脏压力,支持早期检测和干预.
相关概念视频
01:18Polygenic Traits
64.8K
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
64.8K
01:25Glaucoma: Overview
508
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
508