The Kinetics of Cystatin C and Serum Creatinine in AKI.

IF 7.1 1区 医学 Q1 UROLOGY & NEPHROLOGY Clinical Journal of the American Society of Nephrology Pub Date : 2025-04-01 Epub Date: 2025-01-31 DOI:10.2215/CJN.0000000654
Levi Hooper, Michael Heung, Michael Kenes, Kathleen A Stringer, Bruce A Mueller, Manjunath P Pai
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急性肾损伤中胱抑素C和血清肌酐的动力学。
背景:急性肾损伤(AKI)是一种常见病,影响了相当一部分住院和危重患者。目前的AKI诊断依赖于血清肌酐(sCr),这有几个公认的局限性,影响了AKI的及时发现和治疗反应。血清胱抑素C (sCys)具有克服sCr局限性的特性,但这些生物标志物的头对头比较难以进行前瞻性研究。定量评估AKI期间sCys和sCr的动力学对于支持AKI诊断和管理的临床工作流程实施是必要的。方法:使用MATLAB和Simbiology (The MathWorks, Natick, MA)建立定量系统药理学(QSP)模型,模拟不同程度AKI下sCr和sCys的浓度-时间分布。该模型纳入了现有文献中的参数,并使用当代sCr和sCys GFR方程来评估两种生物标志物达到AKI诊断标准的时间。结果:该模型表明,sCys达到稳态浓度并达到AKI诊断阈值的速度明显快于sCr,根据CKD分期,sCr的优势为6至48小时。sCys在检测GFR减少方面表现出更高的敏感性,能够在AKI后12-24小时内检测到AKI,而sCr在12-72小时内检测到AKI。该研究还发现,对于sCys,绝对值诊断截止值比基于百分比的阈值更有效,并且可以在不同的CKD阶段提供一致的检测。结论:与sCr相比,sCys在早期AKI检测方面具有优越的动力学,使其成为AKI诊断方案中有价值的补充,特别是在高危人群中。对有AKI风险的患者进行sCys的日常监测将有助于更及时地发现并潜在地改善临床结果。未来的研究应侧重于验证sCys的诊断标准,并将其与其他生物标志物相结合,以加强AKI的管理。
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来源期刊
CiteScore
12.20
自引率
3.10%
发文量
514
审稿时长
3-6 weeks
期刊介绍: The Clinical Journal of the American Society of Nephrology strives to establish itself as the foremost authority in communicating and influencing advances in clinical nephrology by (1) swiftly and effectively disseminating pivotal developments in clinical and translational research in nephrology, encompassing innovations in research methods and care delivery; (2) providing context for these advances in relation to future research directions and patient care; and (3) becoming a key voice on issues with potential implications for the clinical practice of nephrology, particularly within the United States. Original manuscript topics cover a range of areas, including Acid/Base and Electrolyte Disorders, Acute Kidney Injury and ICU Nephrology, Chronic Kidney Disease, Clinical Nephrology, Cystic Kidney Disease, Diabetes and the Kidney, Genetics, Geriatric and Palliative Nephrology, Glomerular and Tubulointerstitial Diseases, Hypertension, Maintenance Dialysis, Mineral Metabolism, Nephrolithiasis, and Transplantation.
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