不确定潜力的克隆性血液形成有助于加速慢性病进展
medRxiv : the preprint server for health sciences
|July 1, 2024
概括
不确定潜力的克隆性血液形成 (CHIP) 加快慢性病 (CKD) 的进展,特别是非DNMT3A CHIP. 这一发现突显了CHIP作为脏疾病的新,可向的风险因素.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
背景情况:
- 不确定潜力的克隆性血液形成 (CHIP) 是一种与衰老相关的炎症状况,与末端器官损伤有关.
- 以前的研究表明,CHIP与损伤和衰退有关,而非DNMT3A CHIP的联系更为强烈.
- 关于CHIP对慢性病 (CKD) 进展的影响,存在相互矛盾的发现.
研究的目的:
- 调查CHIP和CKD进展事件之间的潜在关联.
- 为了检查CHIP对估计膜过率 (eGFR) 降低的速度的影响.
- 探索CHIP在eGFR下降中的潜在因果作用,并评估其在小鼠CKD模型中的影响.
主要方法:
- 对四个CKD患者队列 (N=5,772) 的分析,检查CHIP和CKD进展 (50%的eGFR下降或功能衰竭).
- 年化eGFR下降斜率的二次分析.
- 使用孟德尔随机化和小鼠模型 (Tet2-CHIP) 来评估因果关系和病理.
主要成果:
- 非DNMT3A CHIP与59%更高的CKD进展风险相关 (HR 1.59).
- 糖尿病患者和更高的基线EGFR (≥30毫升/分钟/1.73米2) 的患者中,相关性更强.
- 非DNMT3A的CHIP载体表现出更的eGFR下降 (β-0.61毫升/分钟/1.73m2/年). 门德尔的随机化表明糖尿病患者的因果作用. 在Tet2-CHIP小鼠中,小鼠模型显示GFR受损,炎症和纤维化.
结论:
- 非DNMT3A CHIP是CKD进展的重要风险因素.
- CHIP,特别是非DNMT3A变种,代表了病进展的新且潜在的可向风险因素.
- 这些发现强调了在CKD管理中考虑CHIP的重要性.
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