Heart failure & cardiomyopathiesMechanistic study
Serum Proteomic Analysis of Peripartum Cardiomyopathy Reveals Distinctive Dysregulation of Inflammatory and Cholesterol Metabolism Pathways
- Mechanistic study
- aptamer-based proteomic analysis (SomaScan 7K)
Authors' conclusion
Serum proteomic profiling of PPCM relative to NPCM and healthy controls indicated that PPCM is a distinct disease entity characterized by the unique dysregulation of inflammation-related pathways and cholesterol metabolism-related anti-inflammatory pathways.
Study context
- Population
- Women with pathophysiology of peripartum cardiomyopathy (PPCM) or nonperipartum cardiomyopathy (NPCM) and healthy peripartum and nonperipartum women; serum from the IPAC and IMAC2 studies
- Participants
- 67 / 31 / 10 / 10
- Comparison
- PPCM vs NPCM and healthy controls
- PPCMn = 67
- NPCMn = 31reference
- Healthy peripartumn = 10
- Healthy nonperipartumn = 10
Main finding
As reported in the abstract
Serum proteome
Unique clustering of each patient group on principal component analysis
P for difference <0.001
Specific dysregulation of inflammatory pathways in PPCM vs NPCM, incl. upregulation of the cholesterol metabolism-related anti-inflammatory LXR/RXR pathway
P < 0.01, Z-score 1.9-2.1
Further findings
Cardiac recovery in PPCM · 12 months
- Associated with downregulation of pro-inflammatory pathways and upregulation of LXR/RXR and PPARα/RXRα signaling
Original publication
Serum Proteomic Analysis of Peripartum Cardiomyopathy Reveals Distinctive Dysregulation of Inflammatory and Cholesterol Metabolism Pathways. JACC Heart Fail. Published 2 August 2023. doi:10.1016/j.jchf.2023.05.031
Summarised from the published abstract; every number is checked against it