Danilenko, Olga V, Gavrilova, Natalia Y, Churilov, Leonid P · Pathophysiology : the official journal of the International Society for Pathophysiology · 2022 · DOI
This study found that ME/CFS patients have unusual immune system patterns—specifically, their bodies produce antibodies (immune proteins) that attack their own nervous system tissues. The researchers divided ME/CFS patients into three groups based on cause (viral infection, stress, or unknown origin) and found that different groups had different patterns of these self-attacking antibodies. Importantly, all ME/CFS patients showed elevated levels of antibodies against brain and nerve proteins, which could explain why the illness affects multiple body systems.
This research provides biological evidence that autoimmunity plays a role in ME/CFS across different disease subtypes, potentially validating patient experiences of immune dysfunction and opening pathways for targeted treatments. The identification of distinct autoimmune signatures based on disease etiology could eventually enable better classification and personalized treatment approaches for ME/CFS patients.
This study does not prove that autoantibodies *cause* ME/CFS symptoms or dysfunction—it shows correlation only. The small sample size, cross-sectional design, and lack of functional assays (testing whether these antibodies actually damage tissue) mean findings cannot establish causation. Additionally, the presence of autoantibodies in some healthy controls suggests that additional factors beyond autoimmunity are necessary for disease development.
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
Danilenko, Olga V, Gavrilova, Natalia Y, & Churilov, Leonid P (2022). Chronic Fatigue Exhibits Heterogeneous Autoimmunity Characteristics Which Reflect Etiology.. Pathophysiology : the official journal of the International Society for Pathophysiology. https://doi.org/10.3390/pathophysiology29020016
BibTeX
@article{mecfsatlas-danilenko-2022-chronic-fatigue,
author = {Danilenko, Olga V and Gavrilova, Natalia Y and Churilov, Leonid P},
title = {Chronic Fatigue Exhibits Heterogeneous Autoimmunity Characteristics Which Reflect Etiology.},
journal = {Pathophysiology : the official journal of the International Society for Pathophysiology},
year = {2022},
doi = {10.3390/pathophysiology29020016},
note = {PubMed: 35736644},
url = {https://www.mecfsatlas.com/evidence/danilenko-2022-chronic-fatigue},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-26. https://www.mecfsatlas.com/evidence/danilenko-2022-chronic-fatigue
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