Dibble, Joshua J, McGrath, Simon J, Ponting, Chris P · Human molecular genetics · 2020 · DOI
This review examined whether specific genes increase the risk of developing ME/CFS. Researchers looked at existing studies and large patient databases to see if genetic factors could explain why some people get ME/CFS and others don't. They found that most previously suggested 'culprit genes' couldn't be confirmed in larger studies, suggesting the genetic picture of ME/CFS is more complex than initially thought.
Understanding whether genetic factors contribute to ME/CFS is crucial for developing better diagnostic tools and treatments. This review clarifies that despite evidence ME/CFS runs in families, we haven't yet identified the specific genes responsible—highlighting the need for larger, better-designed genetic studies to advance biomedical understanding of this debilitating condition.
This review does not prove that genetics play no role in ME/CFS; rather, it demonstrates that previous candidate gene studies were often too small or lacked proper validation. It also does not establish the actual genetic variants or mechanisms causing ME/CFS—only that earlier proposed associations require confirmation with larger datasets.
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 →
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Primary citation
Dibble, Joshua J, McGrath, Simon J, & Ponting, Chris P (2020). Genetic risk factors of ME/CFS: a critical review.. Human molecular genetics. https://doi.org/10.1093/hmg/ddaa169
BibTeX
@article{mecfsatlas-dibble-2020-genetic-risk,
author = {Dibble, Joshua J and McGrath, Simon J and Ponting, Chris P},
title = {Genetic risk factors of ME/CFS: a critical review.},
journal = {Human molecular genetics},
year = {2020},
doi = {10.1093/hmg/ddaa169},
note = {PubMed: 32744306},
url = {https://www.mecfsatlas.com/evidence/dibble-2020-genetic-risk},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/dibble-2020-genetic-risk
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