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Author Spotlight: Advancing the Analysis of Plasma Extracellular Vesicle Proteome for Cardiovascular Biomarker Studies
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Plasma Metabolomic Profiles Differentiate Patients With Dilated Cardiomyopathy and Ischemic Cardiomyopathy

Junhan Zhao1, Shengwen Yang1,2, Ran Jing1

  • 1State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Frontiers in Cardiovascular Medicine
|November 26, 2020
PubMed

Insights

Dilated cardiomyopathy (DCM) and ischemic cardiomyopathy (ICM) have distinct metabolic signatures, though both are common causes of heart failure. A panel of six metabolites may help differentiate between DCM and ICM patients.

Area of Science:

  • Cardiovascular disease
  • Metabolomics
  • Biochemistry

Background:

  • Dilated cardiomyopathy (DCM) and ischemic cardiomyopathy (ICM) are leading causes of heart failure (HF).
  • Despite shared clinical features, their distinct impacts on cardiovascular metabolomics remain unclear.
  • Understanding these differences is crucial for accurate diagnosis and treatment.

Purpose of the Study:

  • To investigate the differential metabolomic profiles in patients with DCM and ICM compared to healthy controls.
  • To identify common and distinct metabolic pathways associated with each cardiomyopathy type.
  • To explore potential metabolite biomarkers for differentiating DCM from ICM.

Main Methods:

  • Utilized a comprehensive metabolomics platform on plasma samples.
  • Analyzed samples from 38 DCM patients, 18 ICM patients, and 20 healthy controls.
  • Performed pathway analysis to identify metabolic signatures.

Main Results:

  • Significant differences in metabolomic profiles were observed across all groups.
  • Identified 233 dysregulated metabolites in DCM vs. controls and 204 in ICM vs. controls.
  • Found 140 common dysregulated metabolites with similar fold-changes, alongside disease-specific signatures.
  • A panel of 6 metabolites showed potential for differentiating DCM and ICM.

Conclusions:

  • Cardiovascular metabolomics differ significantly between DCM and ICM.
  • Metabolomics can reveal both shared and distinct pathways in heart failure etiologies.
  • A 6-metabolite panel may serve as a novel diagnostic tool for distinguishing DCM from ICM.

Keywords:
dilated cardiomyopathyheart failureischemic cardiomyopathymetabolic pathwaymetabolomics

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