Vecchiet, Jacopo, Cipollone, Francesco, Falasca, Katia et al. · Neuroscience letters · 2003 · DOI
This study compared 21 people with ME/CFS to 20 healthy people and found that those with ME/CFS had signs of increased cellular damage (oxidative stress) and lower levels of protective molecules in their blood. People with ME/CFS also had more fatigue and their muscles were more sensitive to pain. The researchers found that the amount of cellular damage correlated with how fatigued people felt and how sensitive their muscles were.
This study provides biochemical evidence linking oxidative stress to the physical symptoms of ME/CFS, particularly muscle pain and fatigue. If oxidative stress contributes to symptom severity, it could support the development of targeted treatments using antioxidants, offering a potential therapeutic avenue for this debilitating condition.
This study demonstrates correlation between oxidative stress markers and symptoms but cannot prove that oxidative stress causes ME/CFS symptoms or fatigue—the relationship could be bidirectional or both could result from another underlying mechanism. The small sample size and case-control design limit generalizability, and findings require replication in larger, well-controlled studies before clinical recommendations can be made. The study does not establish whether antioxidant supplementation would actually improve symptoms.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Vecchiet, Jacopo, Cipollone, Francesco, Falasca, Katia, Mezzetti, Andrea, Pizzigallo, Eligio, Bucciarelli, Tonino, et al. (2003). Relationship between musculoskeletal symptoms and blood markers of oxidative stress in patients with chronic fatigue syndrome.. Neuroscience letters. https://doi.org/10.1016/s0304-3940(02)01058-3
BibTeX
@article{mecfsatlas-vecchiet-2003-relationship-between,
author = {Vecchiet, Jacopo and Cipollone, Francesco and Falasca, Katia and Mezzetti, Andrea and Pizzigallo, Eligio and Bucciarelli, Tonino and De Laurentis, Silvana and Affaitati, Giannapia and De Cesare, Domenico and Giamberardino, Maria Adele},
title = {Relationship between musculoskeletal symptoms and blood markers of oxidative stress in patients with chronic fatigue syndrome.},
journal = {Neuroscience letters},
year = {2003},
doi = {10.1016/s0304-3940(02)01058-3},
note = {PubMed: 12531455},
url = {https://www.mecfsatlas.com/evidence/vecchiet-2003-relationship-between},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/vecchiet-2003-relationship-between
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