Cure8 news brief
Fatigue is a common, disabling issue in Crohn’s disease with unclear biology. This study suggests measurable brain-structure differences correlate with fatigue severity and may modify how disease activity influences fatigue.
Adults with Crohn’s disease, clinicians managing IBD fatigue, and researchers interested in neuroimaging biomarkers or brain–gut interactions.
Researchers compared 49 adults with Crohn’s disease to 49 matched controls using a validated fatigue questionnaire and high-resolution T1 MRI. Higher fatigue in patients was associated with lower cortical complexity in the right superior temporal gyrus across physical, cognitive, and psychosocial fatigue domains.
Different fatigue domains showed distinct patterns in frontal and parietal regions. A moderation analysis found that when cortical complexity in specific regions (right superior temporal and right superior frontal gyri) was low, disease activity predicted greater fatigue; when complexity was high, that relationship weakened or disappeared.
The authors interpret some increased folding as possibly compensatory but emphasize cautious interpretation.
Cross-sectional neuroimaging cannot prove causation; cortical complexity is an emerging metric and the sample size is modest. Findings need replication and longitudinal study before clinical application.
Review the original publication for the complete reporting, methods, and context.
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