Evidence map›Paper›PMID 36855286›Full record

ArticleEpilepsia2023

Resting state functional connectivity demonstrates increased segregation in bilateral temporal lobe epilepsy.

Alfredo Lucas, Eli J Cornblath, Nishant Sinha, Peter Hadar, Lorenzo Caciagli, Simon S Keller, Leonardo Bonilha, Russell T Shinohara, Joel M Stein, Sandhitsu Das and 2 more

Abstract readMulticenter Study
In one paragraph

Article in Epilepsia, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Article
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  5. Stronger pre-surgical functional connectivity networks are associated with improved surgical outcome in temporal lobe epilepsy.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2025
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  6. Article
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  9. Article
  10. Connectivity of the Piriform Cortex and its Implications in Temporal Lobe Epilepsy.medRxiv : the preprint server for health sciences · 2024
    Article
  11. Article
  12. Article
  13. Interictal intracranial EEG asymmetry lateralizes temporal lobe epilepsy.medRxiv : the preprint server for health sciences · 2023
    Article
  14. Subcortical Functional Connectivity Gradients in Temporal Lobe Epilepsy.medRxiv : the preprint server for health sciences · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Alfredo LucasPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0001-9439-735X
Eli J CornblathPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-2619-8778
Nishant SinhaDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-2090-4889
Peter HadarPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-1681-4717
Lorenzo CaciagliDepartment of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Simon S KellerDepartment of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.ORCID 0000-0001-5247-9795
Leonardo BonilhaDepartment of Neurology, Emory University, Atlanta, Georgia, USA.
Russell T ShinoharaPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Joel M SteinPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Sandhitsu DasPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Ezequiel GleichgerrchtDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina, USA.ORCID 0000-0002-4212-4146
Kathryn A DavisPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Funding

Inter-modal Coupling Image AnalyticsR01MH112847 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI Theodore Satterthwaite, Russell Takeshi Shinohara · 2017 to 2026
$5.9M
Harmonization of Multi-Site Neuroimaging Data from Complex Study DesignsR01MH123550 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI SHINOHARA, RUSSELL TAKESHI · 2020 to 2025
$4.0M
Optimized Intracranial EEG Targeting in Focal Epilepsy based upon Neuroimaging ConnectomicsR01NS116504 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI DAVIS, KATHRYN ADAMIAK · 2021 to 2025
$3.3M
Medical Research Council MR/S00355X/1NIMH NIH HHS R01 MH112847NIMH NIH HHS R01 MH123550NINDS NIH HHS R01 NS116504
6 · The paper itself

Abstract

objectiveTemporal lobe epilepsy (TLE) is the most common type of focal epilepsy. An increasingly identified subset of patients with TLE consists of those who show bilaterally independent temporal lobe seizures. The purpose of this study was to leverage network neuroscience to better understand the interictal whole brain network of bilateral TLE (BiTLE).

methodsIn this study, using a multicenter resting state functional magnetic resonance imaging (rs-fMRI) data set, we constructed whole-brain functional networks of 19 patients with BiTLE, and compared them to those of 75 patients with unilateral TLE (UTLE). We quantified resting-state, whole-brain topological properties using metrics derived from network theory, including clustering coefficient, global efficiency, participation coefficient, and modularity. For each metric, we computed an average across all brain regions, and iterated this process across network densities. Curves of network density vs each network metric were compared between groups. Finally, we derived a combined metric, which we term the "integration-segregation axis," by combining whole-brain average clustering coefficient and global efficiency curves, and applying principal component analysis (PCA)-based dimensionality reduction.

resultsCompared to UTLE, BiTLE had decreased global efficiency (p = .031), and decreased whole brain average participation coefficient across a range of network densities (p = .019). Modularity maximization yielded a larger number of smaller communities in BiTLE than in UTLE (p = .020). Differences in network properties separate BiTLE and UTLE along the integration-segregation axis, with regions within the axis having a specificity of up to 0.87 for BiTLE. Along the integration-segregation axis, UTLE patients with poor surgical outcomes were distributed in the same regions as BiTLE, and network metrics confirmed similar patterns of increased segregation in both BiTLE and poor outcome UTLE. SIGNIFICANCE: Increased interictal whole-brain network segregation, as measured by rs-fMRI, is specific to BiTLE, as well as poor surgical outcome UTLE, and may assist in non-invasively identifying this patient population prior to intracranial electroencephalography or device implantation.

Indexed as

Epilepsy, Temporal LobeBrainBrain MappingElectrocorticographyHumansMagnetic Resonance Imagingbiomarkerdata setintegrationmulticenternetworkneuroimaging

Identifiers

PMID36855286
PMCPMC11934684

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.