Circulating C-peptide as an independent predictor of HFpEF: influence of cardiometabolic risk beyond diabetes

Susanna Longo1,2, Alessandro Nucera3, Giacomo Piciucchi3

  • 1Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy. susanna.longo@uniroma2.it.

Acta Diabetologica
|August 21, 2026
PubMed

Insights

Heart failure with preserved ejection fraction (HFpEF) is a complex condition influenced by metabolic issues. Understanding these metabolic comorbidities is key to improving HFpEF patient care and treatment strategies.

Area of Science:

  • Cardiology
  • Metabolic Diseases
  • Pathophysiology

Background:

  • Heart failure with preserved ejection fraction (HFpEF) is a heterogeneous syndrome with diastolic dysfunction and preserved ejection fraction.
  • HFpEF is increasingly viewed as a multisystem disorder driven by comorbidities, leading to diverse clinical phenotypes.
  • Metabolic comorbidities like obesity, dyslipidemia, type 2 diabetes, and hypertension are common in HFpEF, potentially defining a cardiometabolic HFpEF (cmHFpEF) phenotype.

Purpose of the Study:

  • To investigate the pathophysiological mechanisms underlying HFpEF.
  • To examine the role of cardiometabolic risk burden in HFpEF heterogeneity.
  • To inform future phenotyping strategies and therapeutic approaches for HFpEF.

Main Methods:

  • The study focused on analyzing the pathophysiological mechanisms of HFpEF.
  • Emphasis was placed on the contribution of cardiometabolic risk factors.
  • Investigated the link between comorbidities and HFpEF phenotypes.

Main Results:

  • Metabolic comorbidities significantly contribute to HFpEF heterogeneity.
  • The cardiometabolic HFpEF (cmHFpEF) phenotype is associated with more severe symptoms and poorer quality of life.
  • Coexisting metabolic conditions exacerbate multisystem changes, worsen prognosis, and limit treatment efficacy.

Conclusions:

  • Cardiometabolic risk is a major driver of HFpEF phenotypical diversity.
  • Future research should focus on stratifying HFpEF patients based on metabolic profiles.
  • Targeting metabolic comorbidities may offer novel therapeutic strategies for HFpEF.

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