Evidence map›Paper›PMID 35122511›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2022

Clozapine induces astrocyte-dependent FDG-PET hypometabolism.

Andréia Rocha, Bruna Bellaver, Débora G Souza, Guilherme Schu, Igor C Fontana, Gianina T Venturin, Samuel Greggio, Fernanda U Fontella, Manoela L Schiavenin, Luiza S Machado and 6 more

Abstract read
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In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Review
  7. Observational
  8. Stable brain PET metabolic networks using a multiple sampling scheme.Network neuroscience (Cambridge, Mass.) · 2025
    Article
  9. Article
  10. Astrocytic CaGlia · 2024
    Article
  11. Article
  12. Omics-derived biological modules reflect metabolic brain changes in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. 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

16 authors at 4 institutions in 4 countries.

Andréia RochaGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Bruna BellaverGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Débora G SouzaGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Guilherme SchuGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Igor C FontanaGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Gianina T VenturinPreclinical Research Center, Brain Institute (BraIns) of Rio Grande Do Sul, Pontifical Catholic University of Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil.
Samuel GreggioPreclinical Research Center, Brain Institute (BraIns) of Rio Grande Do Sul, Pontifical Catholic University of Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil.
Fernanda U FontellaGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Manoela L SchiaveninGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Luiza S MachadoGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Diogo MironFaculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Jaderson C da CostaPreclinical Research Center, Brain Institute (BraIns) of Rio Grande Do Sul, Pontifical Catholic University of Rio Grande Do Sul (PUCRS), Porto Alegre, Brazil.
Pedro Rosa-NetoTranslational Neuroimaging Laboratory, McGill University Research Centre for Studies in Aging, Douglas Research Institute, Le Centre intégré universitaire de santé et de services sociaux (CIUSSS) de l'Ouest-de-l'Île-de-Montréal, Montreal, Canada.
Diogo O SouzaGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Luc PellerinInserm U1313, Université et CHU de Poitiers, Poitiers, France.
Eduardo R ZimmerGraduate Program in Biological Sciences: Biochemistry, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil. eduardo.zimmer@ufrgs.br.ORCID http://orcid.org/0000-0002-5349-0053
Universidade Federal do Rio Grande · BRInstituto do Cérebro · BRDouglas Mental Health University Institute · CAInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAdvances in functional imaging allowed us to visualize brain glucose metabolism in vivo and non-invasively with [

methodsAdult male Wistar rats (control, n = 14; CLO, n = 12) received CLO (25/35 mg kg

resultsCLO markedly reduced in vivo brain glucose metabolism in several brain areas, especially in the cortex. Ex vivo analyses demonstrated decreased cortical glutamate transport along with GLT-1 mRNA and protein downregulation. In astrocyte cultures, CLO decreased GLT-1 density as well as glutamate and glucose uptake. By contrast, in cortical neuronal cultures, CLO did not affect glucose uptake.

conclusionThis work provides in vivo demonstration that GLT-1 downregulation induces astrocyte-dependent cortical FDG-PET hypometabolism-mimicking the hypometabolic signature seen in people developing dementia-and adds further evidence that astrocytes are key contributors of the FDG-PET signal.

Indexed as

AstrocytesClozapineAnimalsFluorodeoxyglucose F18GlucoseGlutamic AcidHumansMalePositron-Emission TomographyRatsRats, WistarClozapineFluorodeoxyglucose F18GlucoseGlutamic AcidAstrocytesClozapineFDG-PETGLT-1GlucoseGlutamate

Identifiers

PMID35122511
OpenAlexW4225867126

What OpenQuestion holds

Textmetadata
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.