Evidence map›Paper›PMID 37240831›Full record

ArticleLife (Basel, Switzerland)2023

Phase-Amplitude Coupling Localizes Pathologic Brain with Aid of Behavioral Staging in Sleep.

Brent Berry, Yogatheesan Varatharajah, Vaclav Kremen, Michal Kucewicz, Hari Guragain, Benjamin Brinkmann, Juliano Duque, Diego Z Carvalho, Matt Stead, Gary Sieck and 1 more

Abstract read
In one paragraph

Article in Life (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

11 authors.

Brent BerryDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Yogatheesan VaratharajahDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Vaclav KremenDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Michal KucewiczDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Hari GuragainDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Benjamin BrinkmannDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Juliano DuqueDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Diego Z CarvalhoDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Matt SteadDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.
Gary SieckDepartment of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.
Gregory WorrellDepartment of Neurology, Mayo Clinic, Rochester, MN 55905, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low frequency brain rhythms facilitate communication across large spatial regions in the brain and high frequency rhythms are thought to signify local processing among nearby assemblies. A heavily investigated mode by which these low frequency and high frequency phenomenon interact is phase-amplitude coupling (PAC). This phenomenon has recently shown promise as a novel electrophysiologic biomarker, in a number of neurologic diseases including human epilepsy. In 17 medically refractory epilepsy patients undergoing phase-2 monitoring for the evaluation of surgical resection and in whom temporal depth electrodes were implanted, we investigated the electrophysiologic relationships of PAC in epileptogenic (seizure onset zone or SOZ) and non-epileptogenic tissue (non-SOZ). That this biomarker can differentiate seizure onset zone from non-seizure onset zone has been established with ictal and pre-ictal data, but less so with interictal data. Here we show that this biomarker can differentiate SOZ from non-SOZ interictally and is also a function of interictal epileptiform discharges. We also show a differential level of PAC in slow-wave-sleep relative to NREM1-2 and awake states. Lastly, we show AUROC evaluation of the localization of SOZ is optimal when utilizing beta or alpha phase onto high-gamma or ripple band. The results suggest an elevated PAC may reflect an electrophysiology-based biomarker for abnormal/epileptogenic brain regions.

Indexed as

behavioral stagingepilepsyphase-amplitude coupling (PAC)

Identifiers

PMID37240831
PMCPMC10221792

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.