Biomolecules (Feb 2023)

Plasma Neutrophil Gelatinase-Associated Lipocalin Associates with New-Onset Chronic Kidney Disease in the General Population

  • Arno R. Bourgonje,
  • Amaal E. Abdulle,
  • Martin F. Bourgonje,
  • Lyanne M. Kieneker,
  • Sacha la Bastide-van Gemert,
  • Sanne J. Gordijn,
  • Clara Hidden,
  • Tom Nilsen,
  • Ron T. Gansevoort,
  • Douwe J. Mulder,
  • Robin P. F. Dullaart,
  • Martin H. de Borst,
  • Stephan J. L. Bakker,
  • Harry van Goor

DOI
https://doi.org/10.3390/biom13020338
Journal volume & issue
Vol. 13, no. 2
p. 338

Abstract

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Circulating levels of neutrophil gelatinase-associated lipocalin (NGAL) have been associated with acute kidney injury and the severity and progression of chronic kidney disease (CKD). This study investigated its potential utility as a biomarker for the risk of new-onset CKD in a population-based cohort study. Individuals without CKD at baseline (n = 4660) who participated in the Prevention of REnal and Vascular ENd-stage Disease (PREVEND) prospective population-based cohort study in the Netherlands were included. Baseline plasma NGAL concentrations were investigated for their associations with new-onset CKD, defined as a composite outcome of an estimated glomerular filtration rate (eGFR) 2, urinary albumin excretion (UAE) > 30 mg/24-h, or both. Mean (±SD) plasma NGAL concentrations were 104.0 (±34.7) μg/L and median eGFR was 96 [IQR: 85.3–105.8] mL/min/1.73 m2. After median follow-up of 8.3 [IQR: 7.8–8.9] years, 467 participants developed new-onset CKD. Plasma NGAL concentrations were significantly associated with an increased risk of new-onset CKD (hazard ratio [HR] per doubling 1.35 [95% CI: 1.11–1.63], p = 0.002), even after adjustment for potentially confounding factors (1.37 [1.09–1.73], p = 0.007) except baseline eGFR (1.09 [0.86–1.37], p = 0.490). In secondary analyses, plasma NGAL concentrations were significantly associated with new-onset CKD as defined by eGFR 2 alone (adjusted HR per doubling 2.54 [1.69–3.80], p p = 0.828), also when UAE > 30 mg/24-h was set as individual outcome (1.05 [0.82–1.35], p = 0.705). Higher plasma NGAL concentrations are associated with an increased risk of developing CKD in the general population. This association is dependent on renal function, and mainly driven by new-onset CKD as defined by renal function decline.

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