Carlo-Stella, N, Bozzini, S, De Silvestri, A et al. · International journal of immunopathology and pharmacology · 2009 · DOI
This study looked at two genes related to inflammation in 75 Italian ME/CFS patients and compared them to 141 healthy controls. The researchers found that certain genetic variations in the RAGE gene and immune system genes called HLA were more common in ME/CFS patients, suggesting these genetic differences might increase risk for the condition. The findings suggest ME/CFS may involve inherited factors that affect how the immune system responds.
Understanding the genetic underpinnings of ME/CFS immune dysfunction could eventually help identify at-risk individuals and guide targeted immunomodulatory therapies. This study provides evidence that ME/CFS has a biological, genetic basis involving inflammation regulation, which may help validate the condition and reduce the diagnostic stigma patients face.
This study does not prove that these genetic variants cause ME/CFS—only that they are associated with it. It does not establish whether genetic predisposition directly leads to ME/CFS or requires environmental triggers. The findings are limited to an Italian population and may not apply to other ethnic groups; replication in diverse populations is needed.
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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