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The role of advanced glycation end-products and their receptor on outcome in heart failure patients with preserved and reduced ejection fraction

Suzan Willemsen, Jasper W L Hartog, Dirk J van Veldhuisen, Peter van der Meer, Joline F Roze, Tiny Jaarsma, Casper Schalkwijk, Iwan C C van der Horst, Hans L Hillege, Adriaan A Voors
American Heart Journal 2012, 164 (5): 742-749.e3
23137505

INTRODUCTION: Advanced glycation end products (AGEs) are increased in patients with heart failure (HF). We studied the predictive value of plasma AGEs N(ε)-(carboxymethyl)lysine (CML), pentosidine, and the soluble form of its receptor (sRAGE) in a large HF population.

METHODS: In 580 patients hospitalized with HF, plasma AGEs were measured before discharge when patients were clinically stable. Patients were followed for a period of 18 months. Primary end point was a composite of death and HF admissions. CML was determined by liquid chromatography mass spectrometry, pentosidine by high-performance liquid chromatography and sRAGE by sequential sandwich immunoassay.

RESULTS: Mean age was 71 ± 11 years, 62% were men, and mean left ventricular ejection fraction was 0.32 ± 0.14. At baseline, mean CML level was 2.16 ± 0.73 μmol/L, median pentosidine was 0.043 (0.030-0.074) μmol/L, and median sRAGE level was 2.92 (1.90-4.59) ng/mL. CML and pentosidine levels were independently related to the composite end-point (HR, 1.20 per SD; 95% CI,1.05-1.37; P = .01 and HR, 1.15 per SD; 95% CI, 1.00-1.31; P = .045, respectively) and HF hospitalization (HR, 1.27 per SD; 95% CI, 1.10-1.48; P = .001 and HR, 1.27 per SD; 95% CI, 1.10-1.47; P = .001, respectively). Furthermore, CML levels were independently related to increased mortality (P = .006). Whereas sRAGE levels were univariately predictive for outcome, in multivariate models sRAGE did not reach statistical significance.

DISCUSSION: In HF patients, both CML and pentosidine predict HF hospitalization and the combined primary end-point (mortality or HF-hospitalization), whereas sRAGE did not predict events. In addition, CML was significantly and independently associated with a higher risk for mortality.

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