Dibble, Joshua J, Ferneyhough, Ben, Roddis, Matthew et al. · BMC research notes · 2024 · DOI
Researchers studied immune cells called T-cells in people with ME/CFS to see if they were different from those in healthy people. They looked at genetic patterns in blood samples from 40 people in each group: those severely affected by ME/CFS, those mildly or moderately affected, people with multiple sclerosis, and healthy controls. Although they used advanced technology and computer programs to analyze the data, they found that the T-cell patterns were not notably different between the groups.
Finding objective biomarkers for ME/CFS is critical since no current diagnostic test exists and the disease is often misunderstood or misdiagnosed. This study investigated whether T-cell changes could serve as a biological marker, which could help with diagnosis and understanding disease mechanisms. Although the results were negative, they provide important information about which immune hypotheses may need refinement.
This study does not prove that T-cells are not involved in ME/CFS—only that significant diversity differences in blood T-cell receptors are not a consistent feature detectable by this method. The findings do not rule out T-cell abnormalities in other tissues, different types of immune dysfunction, or abnormal T-cell function rather than diversity. Negative findings in one analysis do not exclude other autoimmune or post-infectious mechanisms.
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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