PMID- 28941940 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20181211 IS - 1523-1755 (Electronic) IS - 0085-2538 (Linking) VI - 93 IP - 1 DP - 2018 Jan TI - Mortality prediction in stable hemodialysis patients is refined by YKL-40, a 40-kDa glycoprotein associated with inflammation. PG - 221-230 LID - S0085-2538(17)30540-9 [pii] LID - 10.1016/j.kint.2017.07.010 [doi] AB - Chronic inflammation contributes to increased mortality in hemodialysis (HD) patients. YKL-40 is a novel marker of inflammation, tissue remodeling, and highly expressed in macrophages inside vascular lesions. Elevated levels of YKL-40 have been reported for HD patients but how it integrates into the proinflammatory mediator network as a predictor of mortality remains elusive. We studied serum YKL-40, Interleukin-6 (IL-6), high-sensitivity C-reactive protein, monocyte chemotactic protein-1 (MCP-1), and interferon-gamma induced protein-10 (IP-10) in 475 chronic hemodialysis patients. Patients were followed for mortality for a median of 37 [interquartile range: 25-49] months and checked for interrelation of the measured mediators. To plot cumulative incidence functions, patients were stratified into terciles per YKL-40, IL-6, MCP-1, and IP-10 levels. Multivariable Cox regression models were built to examine associations of YKL-40, IP-10, and MCP-1 with all-cause and cause-specific mortality. Net reclassification improvement was calculated for the final models containing YKL-40 and IL-6. Increased YKL-40 was independently associated with age, IP-10, and IL-6 serum levels. After adjustment for demographic and laboratory parameters, comorbidities, and IL-6, only YKL-40 significantly improved risk prediction for all-cause (hazard ratio 1.4; 95% confidence interval 1.1-1.8) and cardiovascular mortality (hazard ratio 1.5; 95% confidence interval 1.03-2.2). Thus, in contrast to other biomarkers of aberrant macrophage activation, YKL-40 reflects inflammatory activity, which is not covered by IL-6. Mechanistic and prospective studies are needed to test for causal involvement of YKL-40 and whether it might qualify as a therapeutic target. CI - Copyright (c) 2017 International Society of Nephrology. Published by Elsevier Inc. All rights reserved. FAU - Lorenz, Georg AU - Lorenz G AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. Electronic address: Georg.lorenz.gl@gmail.com. FAU - Schmalenberg, Michael AU - Schmalenberg M AD - Department of Clinical Chemistry, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Kemmner, Stephan AU - Kemmner S AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Haller, Bernhard AU - Haller B AD - Department of Medical Statistics and Epidemiology, Technical University Munich, Munich, Germany. FAU - Steubl, Dominik AU - Steubl D AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Pham, Dang AU - Pham D AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Schreiegg, Anita AU - Schreiegg A AD - Department of Clinical Chemistry, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Bachmann, Quirin AU - Bachmann Q AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Schmidt, Alina AU - Schmidt A AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Haderer, Sandra AU - Haderer S AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Huber, Monika AU - Huber M AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Angermann, Susanne AU - Angermann S AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Gunthner, Roman AU - Gunthner R AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Braunisch, Matthias AU - Braunisch M AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Hauser, Christine AU - Hauser C AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Reichelt, Anna-Lena AU - Reichelt AL AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Matschkal, Julia AU - Matschkal J AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Suttmann, Yana AU - Suttmann Y AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Moog, Philipp AU - Moog P AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Stock, Konrad AU - Stock K AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Kuchle, Claudius AU - Kuchle C AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Thurmel, Klaus AU - Thurmel K AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Renders, Lutz AU - Renders L AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Bauer, Axel AU - Bauer A AD - Department of Cardiology, Ludwig-Maximilian University, Munich, Germany. FAU - Baumann, Marcus AU - Baumann M AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Heemann, Uwe AU - Heemann U AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Luppa, Peter B AU - Luppa PB AD - Department of Clinical Chemistry, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. FAU - Schmaderer, Christoph AU - Schmaderer C AD - Department of Nephrology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany. Electronic address: Christoph.schmaderer@mri.tum.de. LA - eng PT - Journal Article PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20170921 PL - United States TA - Kidney Int JT - Kidney international JID - 0323470 RN - 0 (Biomarkers) RN - 0 (CHI3L1 protein, human) RN - 0 (Chitinase-3-Like Protein 1) RN - 0 (Inflammation Mediators) SB - IM CIN - Kidney Int. 2018 Jan;93(1):21-22. PMID: 29291818 MH - Aged MH - Biomarkers/blood MH - Chitinase-3-Like Protein 1/*blood MH - Cross-Sectional Studies MH - Female MH - Humans MH - Inflammation Mediators/*blood MH - Kidney Failure, Chronic/blood/diagnosis/*mortality/*therapy MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Renal Dialysis/adverse effects/*mortality MH - Retrospective Studies MH - Risk Assessment MH - Risk Factors MH - Time Factors MH - Treatment Outcome OTO - NOTNLM OT - YKL-40 OT - cardiovascular OT - chronic inflammation OT - hemodialysis OT - mortality OT - risk EDAT- 2017/09/25 06:00 MHDA- 2018/12/12 06:00 CRDT- 2017/09/25 06:00 PHST- 2017/03/07 00:00 [received] PHST- 2017/07/01 00:00 [revised] PHST- 2017/07/13 00:00 [accepted] PHST- 2017/09/25 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] PHST- 2017/09/25 06:00 [entrez] AID - S0085-2538(17)30540-9 [pii] AID - 10.1016/j.kint.2017.07.010 [doi] PST - ppublish SO - Kidney Int. 2018 Jan;93(1):221-230. doi: 10.1016/j.kint.2017.07.010. Epub 2017 Sep 21.