Kerr, Jonathan R · Current rheumatology reports · 2008 · DOI
Researchers used gene testing to look at which genes are turned on or off differently in people with ME/CFS compared to healthy people. They found 88 genes with different activity levels, mostly related to immune function and infection fighting. Importantly, they discovered that ME/CFS patients appear to fall into at least seven different subtypes based on their gene patterns, suggesting that ME/CFS may not be one single disease but rather several related conditions that might need different treatments.
This study provides evidence that ME/CFS is not a uniform condition but comprises multiple distinct biological subtypes, which could explain why patients respond differently to treatments. Identifying gene signatures and potential therapeutic targets offers a foundation for developing subtype-specific interventions rather than one-size-fits-all approaches. The work supports a biological basis for ME/CFS and highlights the role of immune dysfunction and infection-related pathways.
This study does not prove what causes ME/CFS or establish cause-and-effect relationships—it only shows that gene expression differs between patients and controls. The findings do not validate that the identified genes are actually responsible for disease symptoms, only that they are associated with the condition. The study also does not determine whether the gene expression changes are primary drivers of disease or secondary consequences of the illness.
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, Jonathan R (2008). Gene profiling of patients with chronic fatigue syndrome/myalgic encephalomyelitis.. Current rheumatology reports. https://doi.org/10.1007/s11926-008-0079-5
BibTeX
@article{mecfsatlas-kerr-2008-gene-profiling,
author = {Kerr, Jonathan R},
title = {Gene profiling of patients with chronic fatigue syndrome/myalgic encephalomyelitis.},
journal = {Current rheumatology reports},
year = {2008},
doi = {10.1007/s11926-008-0079-5},
note = {PubMed: 19007540},
url = {https://www.mecfsatlas.com/evidence/kerr-2008-gene-profiling},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/kerr-2008-gene-profiling
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