Cardiovascular

Plasma proteomics enhances heart failure risk prediction among individuals with type 2 diabetes: a prospective cohort study.

TL;DR

A 17-protein risk score improved heart failure prediction beyond clinical variables, polygenic risk, and NT-proBNP in individuals with type 2 diabetes, yielding a maximum C-index of 0.833 with an increment of 0.091.

Key Findings

During a median follow-up of 13.1 years, 298 out of 2198 participants with type 2 diabetes developed incident heart failure.

  • Study population: 2198 participants with type 2 diabetes from the United Kingdom Biobank
  • Median follow-up duration: 13.1 years
  • 298 incident heart failure cases were identified during follow-up
  • Cox proportional hazards models were used to examine associations between 2920 plasma proteins and incident HF

A total of 455 plasma proteins were significantly associated with incident heart failure in individuals with type 2 diabetes.

  • 447 proteins were positively associated with HF risk
  • 8 proteins were inversely associated with HF risk
  • Associated proteins were primarily involved in cell adhesion, extracellular space, signaling receptor activity, and cytokine-cytokine receptor interaction pathways
  • Associations were identified from a panel of 2920 plasma proteins

WAP 4-disulfide core domain protein 2 (WFDC2) was the top protein positively associated with increased heart failure risk.

  • Per-SD increment hazard ratio (HR) of 1.90 (95% CI: 1.65, 2.19)
  • This was the strongest positive association among all 455 proteins identified
  • Identified using Cox proportional hazards models

Apolipoprotein C-I was the top protein inversely associated with heart failure risk.

  • Per-SD increment HR of 0.75 (95% CI: 0.66, 0.85)
  • This was the strongest inverse association among the 8 inversely associated proteins
  • Identified using Cox proportional hazards models

A 17-protein risk score significantly enhanced heart failure prediction beyond clinical variables, polygenic risk, and NT-proBNP.

  • 17 proteins were selected as proteomic predictors using the least absolute shrinkage and selection operator (LASSO) method based on 10-fold cross-validation
  • The 17-protein risk score yielded a maximum C-index of 0.833
  • The increment in C-index was 0.091 over the model including clinical variables, polygenic risk, and NT-proBNP
  • Predictive performance was evaluated using Harrell's C-index, calibration slope, net reclassification improvement, integrated discrimination improvement, decision curve analysis, and calibration plots

The proteomic predictors were selected from clinical and protein predictors using a LASSO-based variable selection approach.

  • LASSO (least absolute shrinkage and selection operator) method was applied
  • 10-fold cross-validation was used for protein predictor selection
  • Both clinical variables and proteomic data were considered in the selection process
  • This approach reduced the 455 associated proteins to 17 key predictors

What This Means

This research suggests that measuring specific proteins in the blood can meaningfully improve the ability to predict which people with type 2 diabetes will go on to develop heart failure. The researchers analyzed blood samples from nearly 2,200 people with type 2 diabetes who were followed for over 13 years, during which almost 300 developed heart failure. Out of nearly 3,000 proteins measured, 455 were found to be linked to heart failure risk — with one protein called WFDC2 showing the strongest association with increased risk, and a protein called apolipoprotein C-I showing a protective association. The researchers then identified a set of 17 key proteins that, when combined into a risk score, substantially improved heart failure prediction compared to using standard clinical information, genetic risk scores, and an established heart failure blood marker called NT-proBNP alone. The combined model achieved a C-index (a measure of predictive accuracy) of 0.833, representing a meaningful improvement over existing approaches. The proteins identified are linked to biological processes such as cell adhesion, immune signaling, and inflammation, potentially offering clues about the mechanisms through which heart failure develops in people with diabetes. This research suggests that plasma protein profiling could one day be used as part of clinical risk assessment to identify people with type 2 diabetes who are at highest risk of developing heart failure, potentially enabling earlier preventive interventions. However, further validation in diverse populations would be needed before such approaches could be translated into routine clinical practice.

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Citation

Yu H, Zhang J, Qian F, Liu J, Zhu K, Qiu Z, et al.. (2026). Plasma proteomics enhances heart failure risk prediction among individuals with type 2 diabetes: a prospective cohort study.. The American journal of clinical nutrition. https://doi.org/10.1016/j.ajcnut.2026.101216