Kerr, J R, Burke, B, Petty, R et al. · Journal of clinical pathology · 2008 · DOI
This study found that ME/CFS is not a single disease but actually seven different types, each with its own genetic fingerprint and specific symptoms. Researchers looked at blood samples and identified which genes were turned on or off differently in patients compared to healthy people, and then grouped patients based on these genetic patterns. Each genetic subtype had different combinations of symptoms—some people struggled mainly with brain fog, others with pain and muscle problems, and some with multiple severe issues affecting sleep, mood, and digestion.
This study challenges the notion that ME/CFS is a single disease and suggests patients may respond differently to treatment based on their genetic subtype. Understanding these subtypes could help clinicians better predict which symptoms a patient will experience and may eventually lead to personalized treatment approaches. The finding that the most severe subtypes involve both biological changes and anxiety/depression supports ME/CFS as a genuine biomedical condition rather than purely psychological.
This study does not prove that these genetic patterns cause ME/CFS—it only shows correlation between gene expression and disease presentation. The study was limited to blood samples and cannot explain what triggers these gene expression changes or whether they differ at different disease stages. Additionally, the findings require independent replication before they can be considered reliable for clinical use.
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
Kerr, J R, Burke, B, Petty, R, Gough, J, Fear, D, Mattey, D L, et al. (2008). Seven genomic subtypes of chronic fatigue syndrome/myalgic encephalomyelitis: a detailed analysis of gene networks and clinical phenotypes.. Journal of clinical pathology. https://doi.org/10.1136/jcp.2007.053553
BibTeX
@article{mecfsatlas-kerr-2008-seven-genomic,
author = {Kerr, J R and Burke, B and Petty, R and Gough, J and Fear, D and Mattey, D L and Axford, J S and Dalgleish, A G and Nutt, D J},
title = {Seven genomic subtypes of chronic fatigue syndrome/myalgic encephalomyelitis: a detailed analysis of gene networks and clinical phenotypes.},
journal = {Journal of clinical pathology},
year = {2008},
doi = {10.1136/jcp.2007.053553},
note = {PubMed: 18057078},
url = {https://www.mecfsatlas.com/evidence/kerr-2008-seven-genomic},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/kerr-2008-seven-genomic
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