Key result
Granulomatous myocarditis and ARVC are associated with reduced plakoglobin signal at myocyte junctions, potentially driven by cytokines like IL-17, TNF-α, and IL-6 (P<0.0001 for elevated mediators in ARVC vs controls).
Why the study?
Does granulomatous inflammation and its associated cytokines alter desmosomal proteins similarly to arrhythmogenic right ventricular cardiomyopathy?
Observational
Does granulomatous inflammation and its associated cytokines alter desmosomal proteins similarly to arrhythmogenic right ventricular cardiomyopathy?
p-value: p=<0.0001
Inflammatory cytokines implicated in granulomatous myocarditis can disrupt desmosomal proteins, suggesting a novel arrhythmogenic mechanism that may also contribute to ARVC pathogenesis.
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May link cytokine-driven desmosomal disruption to arrhythmogenesis in myocarditis; leaves open extension to human ARVC.
Asimaki et al. (2011) conducted an observational in Granulomatous Myocarditis and Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC). Cytokine exposure (IL-17, TNF-α, IL-6) vs. Controls / Lymphocytic myocarditis was evaluated on Plakoglobin signal at cardiac myocyte junctions and levels of serum inflammatory mediators (p=<0.0001). Granulomatous myocarditis and ARVC are associated with reduced plakoglobin signal at myocyte junctions, potentially driven by cytokines like IL-17, TNF-α, and IL-6 (P<0.0001 for elevated mediators in ARVC vs controls).
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