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Association of serum uromodulin and carbamylated albumin with all-cause and cardiovascular mortality in patients with no or mild chronic kidney disease

Serum uromodulin (SUmod) and carbamylated albumin (C-Alb) are emerging biomarkers for chronic kidney disease (CKD) progression and mortality. SUmod reflects tubular health, while C-Alb is associated with excretory kidney function, CKD progression, and cardiovascular (CV) mortality. We hypothesized t...

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Hauptverfasser: Daschner, Clara (VerfasserIn) , Kleber, Marcus E. (VerfasserIn) , Berg, Anders H (VerfasserIn) , Husain-Syed, Faeq (VerfasserIn) , Scherberich, Jürgen E (VerfasserIn) , Krämer, Bernhard (VerfasserIn) , März, Winfried (VerfasserIn) , Yazdani, Babak (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 16 December 2025
In: Clinical chemistry
Year: 2025, Pages: 1-11
ISSN:1530-8561
DOI:10.1093/clinchem/hvaf166
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/clinchem/hvaf166
Volltext
Verfasserangaben:Clara Daschner, Marcus E. Kleber, Anders H. Berg, Faeq Husain-Syed, Jürgen E. Scherberich, Bernhard K. Krämer, Winfried März, and Babak Yazdani
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Zusammenfassung:Serum uromodulin (SUmod) and carbamylated albumin (C-Alb) are emerging biomarkers for chronic kidney disease (CKD) progression and mortality. SUmod reflects tubular health, while C-Alb is associated with excretory kidney function, CKD progression, and cardiovascular (CV) mortality. We hypothesized that the combined use of these markers would improve mortality risk assessments.We analyzed the associations of C-Alb and SUmod levels with the estimated glomerular filtration rate (eGFR) along with their combined predictive value for assessing mortality in 3316 participants of the Ludwigshafen Risk and Cardiovascular Health study showing mid to high CV risk.SUmod correlated moderately with eGFR (ρ = 0.39, P < 0.001) and weakly and inversely with C-Alb (ρ = −0.19, P < 0.001); C-Alb negatively correlated with eGFR (ρ = −0.38, P < 0.001). Patients in the C-Alb high/SUmod low group had the highest mortality risk [hazard ratio (HR)= 3.30; 95% CI, 2.73-3.99], which remained significant after adjustment for confounders, including eGFR (HR = 1.89; 95% CI, 1.24-1.89). In risk-prediction models for all-cause mortality, adding SUmod increased the area under the curve (AUC) from 0.728 to 0.746 (P < 0.001), C-Alb to 0.738 (P = 0.026), and both combined to 0.751 (P < 0.001). For CV mortality, AUC rose from 0.698 to 0.721 with SUmod (P < 0.001), to 0.711 with C-Alb (P = 0.018), and to 0.727 (P = 0.004) in the combined model.SUmod and C-Alb levels yield complementary insights into kidney function, biology, and mortality risk beyond eGFR. Low SUmod/high C-Alb revealed the highest mortality risk, even after multivariate adjustment.DRKS00032641.
Beschreibung:Veröffentlicht: 16. Dezember 2025
Gesehen am 17.02.2026
Beschreibung:Online Resource
ISSN:1530-8561
DOI:10.1093/clinchem/hvaf166

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