Shao, Zhi Ding, Gong, Yu Juan, Ren, Jing et al. · Frontiers in neuroscience · 2023 · DOI
This review examines a bundle of nerve fibers in the brain called the arcuate fasciculus, which helps connect language centers. Researchers found that several conditions—including ME/CFS, stroke, brain tumors, and others—can damage these nerve fibers in measurable ways. New brain imaging techniques can now visualize and measure this damage, which may help doctors understand what goes wrong and develop better treatments.
For ME/CFS patients and researchers, this review is significant because it identifies ME/CFS as one of several conditions associated with measurable changes in a major language and cognitive brain pathway. Understanding structural brain changes in ME/CFS may help explain cognitive symptoms (brain fog, word-finding difficulty) that severely impact quality of life, and could guide future neuroimaging research and therapeutic development.
This review does not prove that arcuate fasciculus damage causes ME/CFS symptoms or that such damage is disease-specific to ME/CFS. The authors note inconsistent findings across studies regarding the direction and magnitude of FA changes, and the review does not establish whether these brain changes are primary drivers of ME/CFS or secondary effects. Causation is not established.
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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