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YKL-40 in patients with end-stage renal disease receiving haemodialysis.

Nielsen, Ture Lange; Plesner, Louis Lind; Warming, Peder Emil; Pallisgaard, Jannik Langtved; Dalsgaard, Morten; Schou, Morten; Høst, Ulla; Rydahl, Casper; Brandi, Lisbet; Køber, Lars; Johansen, Julia Sidenius; Kastrup, Jens; Iversen, Kasper Karmark.
Biomarkers; 23(4): 357-363, 2018 May - Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29357700

PURPOSE:

This study aimed to determine serum YKL-40 in patients with end-stage renal disease (ESRD) on haemodialysis (HD) and to evaluate the prognostic value of serum YKL-40.

METHODS:

Patients >18 years on maintenance HD were included. Serum YKL-40 was measured using ELISA before and after a single HD treatment.

RESULTS:

A total of 306 patients were included. Median serum YKL-40 concentration was 238 µgL-1 (IQR: 193-291 µgL-1) before HD treatment and 198 µgL-1 (IQR: 147-258 µgL-1) after HD treatment, which corresponded to age-corrected 93th percentile in healthy subjects. All-cause mortality after 2.8 years was 35.9%. Patients with serum YKL-40 in the highest quartile compared with the lowest quartile had a univariate HR of 4.0 (95% CI: 2.2-7.3, p < 0.001) for all-cause mortality which decreased to 2.4 (95% CI: 1.1-4.5, p = 0.01) in multivariate analysis. Time-dependent receiver operating characteristic curves showed that serum YKL-40 after HD treatment had significant higher area under the curves from 90 d (p = 0.004) and throughout the rest of the follow-up period when compared to serum YKL-40 before HD treatment.

CONCLUSION:

YKL-40 was highly elevated in patients with ESRD on HD, and dialysis reduced serum YKL-40 concentrations approximately one-sixth. YKL-40 measured after dialysis was independently associated with mortality in HD patients.
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