Evidence mapPaperPMID 33006705Full record

ArticleEJNMMI research2020

In vivo glucose metabolism and glutamate levels in mGluR5 knockout mice: a multimodal neuroimaging study using [

Yo-Han Joo, Yun-Kwan Kim, In-Gyu Choi, Hyeon-Jin Kim, Young-Don Son, Hang-Keun Kim, Paul Cumming, Jong-Hoon Kim

Open access · goldAbstract read
In one paragraph

Article in EJNMMI research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 44% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
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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 2 institutions in 3 countries.

Yo-Han JooNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
Yun-Kwan KimNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
In-Gyu ChoiNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
Hyeon-Jin KimDepartment of Biomedical Sciences, Seoul National University, Seoul, Republic of Korea.
Young-Don SonNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
Hang-Keun KimNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea.
Paul CummingInstitute of Nuclear Medicine, Inselspital, Bern University, Bern, Switzerland.
Jong-Hoon KimNeuroscience Research Institute, Gachon University, Incheon, Republic of Korea. jhnp@chol.com.ORCID http://orcid.org/0000-0003-3785-1207
Gachon University · KRQueensland University of Technology · AU

Funding

National Research Foundation of Korea 2016M3C7A1914451
6 · The paper itself

Abstract

backgroundPerturbed functional coupling between the metabotropic glutamate receptor-5 (mGluR5) and N-methyl-D-aspartate (NMDA) receptor-mediated excitatory glutamatergic neurotransmission may contribute to the pathophysiology of psychiatric disorders such as schizophrenia. We aimed to establish the functional interaction between mGluR5 and NMDA receptors in brain of mice with genetic ablation of the mGluR5.

methodsWe first measured the brain glutamate levels with magnetic resonance spectroscopy (MRS) in mGluR5 knockout (KO) and wild-type (WT) mice. Then, we assessed brain glucose metabolism with [

resultsBetween-group comparisons showed no significant differences in [

conclusionsThis is the first multimodal neuroimaging study in mGluR5 KO mice and the first report on the association between cerebral glucose metabolism and glutamate levels in living rodents. The results indicate that mGluR5 KO mice respond to NMDA antagonism with reduced cerebral glucose metabolism, suggesting that mGluR5 transmission normally moderates the net effects of NMDA receptor antagonism on neuronal activity. The negative correlation between glutamate levels and glucose metabolism in mGluR5 KO mice at baseline may suggest an unmasking of an inhibitory component of the glutamatergic regulation of neuronal energy metabolism.

Indexed as

FDGGlutamateKnockoutmGluR5MRSNMDAPET

Identifiers

PMID33006705
PMCPMC7532251
OpenAlexW3089506539

What Socratic 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 Socratic graph.