The abstract is read at the publisher; the summary is JClub's.
Long COVID (LC-19) shows the strongest extracellular vesicle marker alterations, with increased CD9/CD74, CD9/CX3CR1, and CD9/ACE1-positive EVs plus reduced particle concentrations.
- Why it matters: Overlapping symptoms across ME/CFS, fibromyalgia, and LC-19 leave pathophysiology unclear and hinder differential diagnosis, motivating EV-based signatures tied to immune, endothelial, and vascular changes.
- What they did: EV-enriched plasma from ME/CFS, fibromyalgia, ME/CFS+FM co-diagnosed cases, LC-19, and matched healthy controls (n = 10 per group) was profiled by nanoparticle tracking and AlphaScreen for EV surface marker pairs.
- The result: Platelet-derived CD9/CD41/CD61-positive EVs are significantly elevated in both LC-19 and ME/CFS versus healthy controls, while LC-19 immune and renin-angiotensin markers indicate coordinated immune and vascular pathway dysregulation.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.