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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Updated: Sep 10, 2025

Trans-vivo Delayed Type Hypersensitivity Assay for Antigen Specific Regulation
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CD4+CD25+CD39+ 调控性T细胞作为血液导管相关感染的新诊断生物标志物

Hesham Kamal Habeeb Keryakos1, Christina Rafat Kamal1, Aliaa Mohamed Monir Higazi2

  • 1Department of Internal Medicine and Nephrology, Faculty of Medicine, Minia University, Minia, Egypt.

Hemodialysis international. International Symposium on Home Hemodialysis
|August 26, 2025
PubMed
概括

在血液透析患者中,增加的CD4+CD25+CD39+调节性T细胞 (Tregs) 在诊断导管相关的血液感染 (CRBSI) 中具有很高的准确性. 这为早期干预提供了传统血液培养的快速替代方案.

关键词:
与导管相关的血液感染 (CRBSI)发烧的临界值免疫调节障碍监管T细胞

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相关实验视频

Last Updated: Sep 10, 2025

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科学领域:

  • 免疫学
  • 传染性疾病
  • 肝脏病学

背景情况:

  • 导管相关的血流感染 (CRBSI) 是血液透析患者发病率和死亡率的重要原因.
  • 目前的诊断依赖于血液培养,
  • CD4+CD25+CD39+调节性T细胞 (Tregs) 是CRBSI免疫失调的潜在生物标志物.

研究的目的:

  • 评估CD4+CD25+CD39+Tregs作为患HD患者CRBSI的诊断生物标志物.
  • 将透析血系培养与周围静脉穿刺培养的可靠性进行比较.
  • 确定CRBSI预测的最佳发烧值.

主要方法:

  • 在87名HD患者 (42名CRBSI,45名对照) 的前性队列研究中.
  • 通过流细胞计量量Treg频率.
  • 从透析血系和外围静脉获得配对血培养; 根据CDC标准确认CRBSI.

主要成果:

  • 在CRBSI患者中,Treg频率显著升高 (14. 1%对3. 3%,p < 0. 001),诊断准确度高 (AUC为0. 974).
  • 透析血系培养与外围培养具有很高的一致性 (92%的一致性, κ = 0.88).
  • 发烧> 38. 0°C强烈预测CRBSI (OR 18. 67),诊断三元组 (Tregs> 10%,CRP> 50 mg/ L,发烧> 38. 0°C) 显示异常差异 (AUC 0. 93).

结论:

  • CD4+CD25+CD39+ Treg 是一种新的,高性能的CRBSI生物标志物.
  • 结合经过验证的培养和发烧值,Tregs可快速诊断CRBSI.
  • 这种方法可以作为一种切实可行的替代方法,