Multimodal 7T MRI reveals subcortical structural, functional, iron accumulation, and glymphatic abnormalities in chronic migraine
Abstract
BackgroundExploring the pathogenesis of chronic migraine (CM) remains a formidable challenge. While 7T MRI enables precise detection of microstructural alterations in subcortical nuclei and subregions in CM, comprehensive multimodal imaging studies are few. We therefore conducted a 7T multimodal imaging study to characterize subcortical nuclei and limbic subregions within the hypothalamus, thalamus, hippocampus, and amygdala alterations associated with migraine chronification and to determine the impact of medication-overuse headache (MOH) on CM brain changes.MethodsWe performed multimodal 7T MRI in 62 healthy controls (HCs), 62 episodic migraine (EM) patients, and 62 CM patients (31 with MOH). MRI measures included volumes, functional indicators (fractional amplitude of low-frequency fluctuation (fALFF) and regional homogeneity (ReHo)), quantitative susceptibility mapping (QSM), and diffusion tensor imaging analysis along the perivascular space, choroid plexus volume, and basal ganglia perivascular space (PVS) metrics for glymphatic function. Group differences and associations with clinical measures were assessed.ResultsAfter false discovery rate (FDR) correction, fALFF in the accumbens area (L) and mean individual PVS volume differed significantly among the three groups (q < 0.05). Both EM and CM showed lower left accumbens fALFF and greater PVS volume than HCs, whereas no significant difference was detected between EM and CM. No group effects survived FDR correction for…
Read the paper
Related studies
- Calcium Ions in the Physiology and Pathology of the Central Nervous System
- AI-powered in silico twins: redefining precision medicine through simulation, personalization, and predictive healthcare
- In silico functional, structural and pathogenicity analysis of missense single nucleotide polymorphisms in human MCM6 gene
- In Silico drug repurposing pipeline using deep learning and structure based approaches in epilepsy
- Targeting serotonin receptors with phytochemicals – an in-silico study
- In silico exploration of anti-prostate cancer compounds from differential expressed genes
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.