Frontiers in Endocrinology

Blood protein patterns linked to differing heart failure risk

A four-protein panel improved prediction beyond clinical factors and an existing blood marker, raising a measure of how well the model ranked risk by 0.021.

Paper by Jiayu Lv, Shucheng Si, zhaoyu wang et al.

Blood cells and varied protein clusters sit beneath heart cross-sections, one with thick walls and the other with thinner walls and enlarged chambers.
Accepted, not yet published: cohort study of 42,324 metabolically unhealthy UK Biobank participants, median 13.65 yearsBiomarkers

Limit: The prediction panel lacks external validation in an independent cohort

Edited by Boris Djordjevic · AgingResearch.News

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Researchers followed 42,324 metabolically unhealthy UK Biobank participants without heart failure at enrollment in an observational study. During a median follow-up of 13.65 years, 2,178 developed heart failure, a condition in which the heart cannot pump blood effectively. The researchers examined associations between 2,923 blood proteins, body fat measures and later heart failure.

They identified 76 proteins whose associations with heart failure varied with body fat measures. Protein patterns also differed in their links to the development of cardiometabolic diseases and subsequent heart failure. Adding four selected proteins improved prediction beyond clinical factors and an existing blood marker. The C-index, which measures how well a model ranks people by risk, rose by 0.021.

Why it matters

For heart failure, an age-related disease, a key question is whether molecular measurements can capture risk differences that standard clinical assessments miss.

Caveats

This observational analysis cannot establish that the proteins cause heart failure. The prediction panel needs external validation, and its performance beyond metabolically unhealthy UK Biobank participants remains unestablished.

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