Cardiac and inflammatory biomarkers are associated with worsening renal outcomes in patients with type 2 diabetes mellitus: Observations from SAVOR-TIMI 53

  • Thomas A. Zelniker
  • , David A. Morrow
  • , Ofri Mosenzon
  • , Yared Gurmu
  • , Kyungah Im
  • , Avivit Cahn
  • , Itamar Raz
  • , Philippe Gabriel Steg
  • , Lawrence A. Leiter
  • , Eugene Braunwald
  • , Deepak L. Bhatt
  • , Benjamin M. Scirica

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

BACKGROUND: Cardiac and renal diseases commonly occur with bidirectional interactions. We hypothesized that cardiac and inflammatory biomarkers may assist in identification of patients with type 2 diabetes mellitus (T2DM) at high risk of worsening renal function. METHODS: In this exploratory analysis from SAVORTIMI 53, concentrations of high-sensitivity cardiac troponin T (hs-TnT), N-terminal pro-B-type natriuretic peptide (NT-proBNP), and high-sensitivity C-reactive protein (hs-CRP) were measured in baseline serum samples of 12310 patients. The primary end point for this analysis was a ≥40% decrease in estimated glomerular filtration rate (eGFR) at end of treatment (EOT) at a median of 2.1 years. The relationships between biomarkers and the end point were modeled using adjusted logistic and Cox regression. RESULTS: After multivariable adjustment including baseline renal function, each biomarker was independently associated with an increased risk of ≥40% decrease in eGFR at EOT [Quartile (Q) Q4 vs Q1: hs-TnT adjusted odds ratio (OR), 5.63 (3.49 -9.10); NT-proBNP adjusted OR, 3.53 (2.29 -5.45); hs-CRP adjusted OR, 1.84 (95% CI, 1.27-2.68); all P values ≤0.001]. Furthermore, each biomarker was independently associated with higher risk of worsening of urinary albuminto- creatinine ratio (UACR) category (all P values ≤0.002). Sensitivity analyses in patients without heart failure and eGFR ≥60 mL/min provided similar results. In an adjusted multimarker model, hs-TnT and NT-proBNP remained significantly associated with both renal outcomes (all P values <0.01). CONCLUSIONS: hs-TnT, NT-proBNP, and hs-CRP were each associated with worsening of renal function [reduction in eGFR (≥40%) and deterioration in UACR class] in high-risk patients with T2DM. Patients with high cardiac or inflammatory biomarkers should be treated not only for their risk of cardiovascular outcomes but also followed for renal deterioration.

Original languageEnglish
Pages (from-to)781-790
Number of pages10
JournalClinical Chemistry
Volume65
Issue number6
DOIs
StatePublished - Jun 2019
Externally publishedYes

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