ArticleNeurology2025
Altered Interictal Bed Nucleus of Stria Terminalis Connectivity in Patients With Temporal Lobe Epilepsy.
Article in Neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Chronic Stress Alters Dorsal Bed Nucleus of Stria Terminalis Synaptic Neurotransmission in a Dravet Syndrome Mouse Model.bioRxiv : the preprint server for biology · 2026Article
- The bed nucleus of the stria terminalis as a neuromodulatory target for refractory epilepsy.Frontiers in network physiology · 2026Review
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18 authors.
Funding
Abstract
BACKGROUND AND
objectivesTemporal lobe epilepsy (TLE) is a highly prevalent neurologic disorder, with 30%-50% of patients developing drug-resistant epilepsy. Pharmacoresistant seizures remodel critical arousal and respiratory networks, impairing autonomic function and chemoreception and putting patients at increased risk of adverse respiratory events and sudden unexpected death (SUDEP). Given that the bed nucleus of stria terminalis (BNST) serves as a key relay between brainstem respiratory nuclei and cortical arousal networks, we characterized interictal BNST connectivity alterations in patients with TLE.
methodsWe conducted a case-control study of patients with drug-resistant TLE evaluated for epilepsy surgery at Vanderbilt University Medical Center, compared with healthy controls with no history of neurologic disease. Inclusion criteria for patients included clinical TLE diagnosis and age 18-65 years. Using resting-state fMRI (multiband factor = 3, repetition time [TR] = 1.3 seconds), we measured functional connectivity (FC) and effective connectivity through Granger causality (GC) between BNST and whole-brain cortical networks, and brainstem nuclei. Graph theoretical network metrics assessed BNST hub properties. Statistical analyses used multiple comparison corrections and age-corrected z-scores.
resultsThirty-seven patients with TLE (mean age 42.5 ± 12.1 years, 43.2% female) and 33 healthy controls (mean age 36.2 ± 12.0 years, 54.5% female) were studied. Patients demonstrated bilateral reductions in BNST connectivity and causal influence with the whole brain (FC: -2.31 ± 2.87, DISCUSSION: Our findings reveal network reorganization in TLE that compromises autonomic and arousal circuit integrity, leading to failed respiratory-autonomic integration that may underlie respiratory vulnerability and increased SUDEP risk; however, we did not directly study SUDEP cases.
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