Evidence map›Paper›PMID 32499751›Full record

ArticleFrontiers in neurology2020

Circadian-Like Rhythmicity of Extracellular Brain Glutamate in Epilepsy.

Mani Ratnesh S Sandhu, Roni Dhaher, Shaun E Gruenbaum, Raaisa Raaisa, Dennis D Spencer, Milena K Pavlova, Hitten P Zaveri, Tore Eid

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 46% of its field
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

7 citing papers in PubMed, 11 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Mani Ratnesh S SandhuDepartment of Laboratory Medicine, Yale School of Medicine, New Haven, CT, United States.
Roni DhaherDepartment of Neurosurgery, Yale School of Medicine, New Haven, CT, United States.
Shaun E GruenbaumDepartment of Anesthesia and Perioperative Medicine, Mayo Clinic, FL, United States.
Raaisa RaaisaDepartment of Internal Medicine, Yale School of Medicine, New Haven, CT, United States.
Dennis D SpencerDepartment of Neurosurgery, Yale School of Medicine, New Haven, CT, United States.
Milena K PavlovaDepartment of Neurology, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, United States.
Hitten P ZaveriDepartment of Neurology, Yale School of Medicine, New Haven, CT, United States.
Tore EidDepartment of Laboratory Medicine, Yale School of Medicine, New Haven, CT, United States.
Yale University · USBrigham and Women's Hospital · USMayo Clinic in Florida · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
YALE UNIVERSITY CLINICAL AND TRANSLATIONAL SCIENCE AWARD PROGRAMUL1RR024139 · NCRR · YALE UNIVERSITY · PI SHERWIN, ROBERT S · 2006 to 2011
$56.8M
Glutamine Synthetase and the Mechanism of Seizures in Mesial Temporal Lobe EpilepR01NS070824 · NINDS · YALE UNIVERSITY · PI EID, TORE · 2010 to 2014
$1.9M
Network analysis for epilepsy surgeryR01NS109062 · NINDS · YALE UNIVERSITY · PI EID, TORE, ZAVERI, HITTEN P · 2019 to 2022
$1.5M
Dysregulation of Glutamine Synthetase in Human Temporal Lobe EpilepsyK08NS058674 · NINDS · YALE UNIVERSITY · PI EID, TORE · 2008 to 2012
$867k
Metabolomic predictors of circadian vulnerabilities in epilepsyR21NS109734 · NINDS · YALE UNIVERSITY · PI EID, TORE · 2020 to 2020
$461k
NCATS NIH HHS UL1 TR001863NCRR NIH HHS UL1 RR024139NINDS NIH HHS K08 NS058674NINDS NIH HHS R01 NS070824NINDS NIH HHS R01 NS109062NINDS NIH HHS R21 NS109734
6 · The paper itself

Abstract

Seizures often exhibit striking circadian-like (~24-h) rhythms. While chronotherapy has shown promise in treating epilepsy, it is not widely used, in part because the patterns of seizure rhythmicity vary considerably among patients and types of epilepsy. A better understanding of the mechanisms underlying rhythmicity in epilepsy could be expected to result in more effective approaches which can be tailored to each individual patient. The excitatory neurotransmitter glutamate is an essential modulator of circadian rhythms, and changes in the extracellular levels of glutamate likely affect the threshold to seizures. We used a reverse translational rodent model of mesial temporal lobe epilepsy (MTLE) combined with long-term intracerebral microdialysis to monitor the hourly concentrations of glutamate in the seizure onset area (epileptogenic hippocampus) over several days. We observed significant 24-h oscillations of extracellular glutamate in the epileptogenic hippocampus (

Indexed as

chronobiologycircadianepilepsyexcitotoxicityhippocampusneurotransmissionseizures

Identifiers

PMID32499751
PMCPMC7242976
OpenAlexW3025186673

What OpenQuestion holds

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Registered trials

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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.