在接受血液透析的患者中,循环菌群签名和心血管死亡率
Keiichi Sumida1, Yamini Mallisetty1, Chi-Yang Chiu2
1Division of Nephrology, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States.
Journal of the American Society of Nephrology : JASN
|August 11, 2025
概括
循环的真菌DNA (真菌生物) 标志与血液透析患者的心血管死亡风险有关. 已识别的特定真菌属可能作为预测该种群死亡率的新生物标志物.
科学领域:
- 微生物学 微生物学
- 心脏病学 心脏病学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 循环微生物群的改变与心脏代谢疾病的发病有关.
- 之前的研究集中在细菌DNA上,因此菌DNA (菌群) 的作用尚不清楚.
研究的目的:
- 在血液透析患者中描述循环无细胞真菌生物体的特征.
- 检查菌群和所有原因/心血管死亡率之间的关联.
- 评估真菌生物体特征的预测能力和炎症调解.
主要方法:
- 全国960名血液透析患者的潜在队列.
- 血清样本的内部转录间隔器 (ITS) 核糖体DNA (rDNA) 测序.
- 考克斯模型用于分析与死亡率的关联,调整混因素.
主要成果:
- 在80%的患者中检测到循环的真菌DNA,确定了397种真菌种群.
- 更高的α多样性和特定的属 (Wallemia,Cladosporium,Fusarium) 与心血管死亡率的增加有关.
- 菌生物体的特征改善了心血管死亡预测,超过已知的风险因素;炎症中介并不显著.
结论:
- 循环的真菌生物签名与血液透析患者的心血管死亡率有关.
- 这些签名显示出作为预后生物标记物的潜力.
- 需要进一步的机制研究来了解循环真菌的作用.
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