Van Der Gucht, Axel, Aoun Sebaiti, Mehdi, Guedj, Eric et al. · Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2017 · DOI
This study used a special type of brain scan (PET imaging) to look for energy metabolism problems in the brains of people with macrophagic myofascitis, a condition involving immune cell buildup in muscles. Researchers found that MMF patients had lower energy use in multiple brain regions compared to healthy people, and this pattern was especially pronounced in patients who also had thinking and memory problems.
This work identifies a specific brain metabolic signature associated with cognitive impairment in MMF, a condition with substantial overlap with ME/CFS presentations. The findings suggest that objective neuroimaging biomarkers may help distinguish cognitive dysfunction in chronic fatigue-associated conditions and could guide future diagnostic or therapeutic approaches in ME/CFS populations experiencing similar neurological symptoms.
This study does not establish causation—metabolic abnormalities may result from, contribute to, or be coincidental with cognitive dysfunction rather than causing it. The study examines MMF patients, not ME/CFS patients directly, so applicability to ME/CFS populations remains speculative. Cross-sectional design prevents determination of whether brain metabolic patterns precede or follow symptom onset.
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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