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Association of hematopoietic loss of Y chromosome with valvular heart disease incidence and sex susceptibility
Journal of Advanced Research ( IF 11.4 ) Pub Date : 2025-06-02 , DOI: 10.1016/j.jare.2025.06.001
Chenxuan Zhao, Yuanfeng Huang, Tianqi Ma, Xunjie Cheng, Jinchen Li, Guogang Zhang, Yongping Bai, Yu Tan

Introduction

Hematopoietic mosaic Loss Of Y chromosome (LOY), a condition referring to the age-related loss of Y chromosome in a subset of blood cells, is associated with shortened life expectancy and increased risk of age-related diseases in men. Despite Valvular Heart Disease (VHD) becoming more prevalent with aging, the underlying risk factors and mechanisms leading to sex-related differences in VHD remain unclear.

Objectives

We aimed to investigate the association between hematopoietic LOY and incident VHD, and to assess whether LOY contributes to sex disparities in VHD.

Methods

We analysed UK Biobank participants aged ≥ 60 without prevalent VHD. The primary outcome was incident VHD, and the secondary outcomes were incident degenerative Aortic Stenosis (AS) and Mitral Regurgitation (MR). Associations between LOY and the outcomes were assessed using multivariate-adjusted Cox regression, estimating Hazard Ratios (HR) and 95 % confidence intervals (CI).

Results

Among 90,123 male participants, 606 (0.7 %) had LOY ≥ 40 %. Over a median follow-up of 14.1 years, a total of 7,663 VHD, 2,439 AS, and 1,997 MR cases were recorded. LOY ≥ 40 % was significantly associated with VHD (HR: 1.31, 95 % CI: 1.04–1.65), AS (HR: 1.47, 95 % CI: 1.00–2.15), and MR (HR: 1.69, 95 % CI: 1.12–2.55). Furthermore, male participants with LOY ≥ 40 % had significantly higher risk of VHD (HR: 1.93, 95 % CI: 1.47–2.51), AS (HR: 2.39, 95 % CI: 1.52–3.78) and MR (HR: 2.03, 95 % CI: 1.23–3.34) compared to matched females.

Conclusions

Mosaic LOY is independently associated with increased risk of incident VHD and contributes to the observed sex differences in VHD susceptibility.


中文翻译:

Y 染色体造血缺失与心脏瓣膜病发病率和性别易感性的相关性

  介绍

造血嵌合体 Y 染色体丢失 (LOY) 是一种与年龄相关的血细胞亚群中 Y 染色体丢失的疾病,与男性预期寿命缩短和年龄相关疾病风险增加有关。尽管瓣膜性心脏病 (VHD) 随着年龄的增长而变得更加普遍,但导致 VHD 性别相关差异的潜在风险因素和机制仍不清楚。

  目标

我们旨在调查造血 LOY 与新发 VHD 之间的关联,并评估 LOY 是否会导致 VHD 中的性别差异。

  方法

我们分析了 60 ≥ 岁且没有普遍 VHD 的英国生物样本库参与者。主要结局是事件 VHD,次要结局是事件退行性主动脉瓣狭窄 (AS) 和二尖瓣反流 (MR)。使用多变量调整的 Cox 回归评估 LOY 与结局之间的关联,估计风险比 (HR) 和 95% 置信区间 (CI)。

  结果

在 90,123 名男性参与者中,606 名 (0.7%) 的 LOY ≥ 40%。在中位 14.1 年的随访中,共记录了 7,663 例 VHD 、 2,439 例 AS 和 1,997 例 MR 病例。LOY ≥ 40% 与 VHD (HR: 1.31, 95 % CI: 1.04–1.65)、AS (HR: 1.47, 95 % CI: 1.00–2.15) 和 MR (HR: 1.69, 95 % CI: 1.12–2.55) 显著相关。此外,LOY ≥ 40% 的男性参与者患 VHD(HR:1.93,95 % CI:1.47-2.51)、AS(HR:2.39,95 % CI:1.52-3.78)和 MR(HR:2.03,95 % CI:1.23-3.34)的风险显著高于匹配的女性。

  结论

嵌合 LOY 与发生 VHD 的风险增加独立相关,并导致观察到的 VHD 易感性性别差异。
更新日期:2025-06-02
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