Use of proteomics to identify biomarkers associated with chronic kidney disease and long-term outcomes in patients with myocardial infarction

R. Edfors, L. Lindhagen, J. Spaak, M. Evans, P. Andell, T. Baron, J. Mörtberg, M. Rezeli, B. Salzinger, P. Lundman, K. Szummer, P. Tornvall, H. N. Wallén, S. H. Jacobson, T. Kahan, G. Marko-Varga, D. Erlinge, S. James, B. Lindahl, T. Jernberg

Research output: Contribution to journalArticlepeer-review

1 Citation (SciVal)

Abstract

Background: Patients with chronic kidney disease (CKD) have poor outcomes following myocardial infarction (MI). We performed an untargeted examination of 175 biomarkers to identify those with the strongest association with CKD and to examine the association of those biomarkers with long-term outcomes. Methods: A total of 175 different biomarkers from MI patients enrolled in the Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies (SWEDEHEART) registry were analysed either by a multiple reaction monitoring mass spectrometry assay or by a multiplex assay (proximity extension assay). Random forests statistical models were used to assess the predictor importance of biomarkers, CKD and outcomes. Results: A total of 1098 MI patients with a median estimated glomerular filtration rate of 85 mL min−1/1.73 m2 were followed for a median of 3.2 years. The random forests analyses, without and with adjustment for differences in demography, comorbidities and severity of disease, identified six biomarkers (adrenomedullin, TNF receptor-1, adipocyte fatty acid-binding protein-4, TNF-related apoptosis-inducing ligand receptor 2, growth differentiation factor-15 and TNF receptor-2) to be strongly associated with CKD. All six biomarkers were also amongst the 15 strongest predictors for death, and four of them were amongst the strongest predictors of subsequent MI and heart failure hospitalization. Conclusion: In patients with MI, a proteomic approach could identify six biomarkers that best predicted CKD. These biomarkers were also amongst the most important predictors of long-term outcomes. Thus, these biomarkers indicate underlying mechanisms that may contribute to the poor prognosis seen in patients with MI and CKD.

Original languageEnglish
Pages (from-to)581-592
Number of pages12
JournalJournal of Internal Medicine
Volume288
Issue number5
Early online date2020 Jul 8
DOIs
Publication statusPublished - 2020 Nov

Subject classification (UKÄ)

  • Cardiac and Cardiovascular Systems
  • Urology and Nephrology

Keywords

  • acute coronary syndrome and myocardial infarction
  • biomarkers
  • chronic kidney disease
  • proteomics
  • renal dysfunction
  • renal failure

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