Evidence map›Paper›PMID 23964123›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

NR2B subunit of the NMDA glutamate receptor regulates appetite in the parabrachial nucleus.

Qi Wu, Ruimao Zheng, Dollada Srisai, G Stanley McKnight, Richard D Palmiter

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  15. GLP-1 and weight loss: unraveling the diverse neural circuitry.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    Review
  16. New inducible genetic method reveals critical roles of GABA in the control of feeding and metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  17. Article
  18. Article
  19. Appetite and body weight regulation after bariatric surgery.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2015
    Review
  20. Structure, production and signaling of leptin.Metabolism: clinical and experimental · 2015
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Qi WuDepartment of Biochemistry, University of Washington School of Medicine, Seattle, WA 98195, USA.
Ruimao Zheng
Dollada Srisai
G Stanley McKnight
Richard D Palmiter
Howard Hughes Medical Institute · USUniversity of Iowa · US

Funding

REGULATION OF CYCLIC AMP-DEPENDENT PROTEIN KINASE GENESR01GM032875 · NIGMS · UNIVERSITY OF WASHINGTON · PI MCKNIGHT, GEORGE STANLEY · 1985 to 2017
$6.0M
Effect of Killing or Removing GABA from NPY/AgRP NeuronsR01DA024908 · NIDA · UNIVERSITY OF WASHINGTON · PI PALMITER, RICHARD D. · 2007 to 2021
$3.5M
Howard Hughes Medical InstituteNIDA NIH HHS R01 DA024908NIDA NIH HHS R01DA24908NIGMS NIH HHS R01 GM032875NIGMS NIH HHS R01GM032875
6 · The paper itself

Abstract

Diphtheria toxin-mediated, acute ablation of hypothalamic neurons expressing agouti-related protein (AgRP) in adult mice leads to anorexia and starvation within 7 d that is caused by hyperactivity of neurons within the parabrachial nucleus (PBN). Because NMDA glutamate receptors are involved in various synaptic plasticity-based behavioral modifications, we hypothesized that modulation of the NR2A and NR2B subunits of the NMDA receptor in PBN neurons could contribute to the anorexia phenotype. We observed by Western blot analyses that ablation of AgRP neurons results in enhanced expression of NR2B along with a modest suppression of NR2A. Interestingly, systemic administration of LiCl in a critical time window before AgRP neuron ablation abolished the anorectic response. LiCl treatment suppressed NR2B levels in the PBN and ameliorated the local Fos induction that is associated with anorexia. This protective role of LiCl on feeding was blunted in vagotomized mice. Chronic infusion of RO25-6981, a selective NR2B inhibitor, into the PBN recapitulated the role of LiCl in maintaining feeding after AgRP neuron ablation. We suggest that the accumulation of NR2B subunits in the PBN contributes to aphagia in response to AgRP neuron ablation and may be involved in other forms of anorexia.

Indexed as

Adjuvants, ImmunologicAgouti-Related ProteinAnimalsAnorexiaAppetiteBlotting, WesternBody WeightDeglutition DisordersEatingLithium ChlorideMaleMiceMice, KnockoutNeuronsPhenolsPiperidinesAdjuvants, ImmunologicAgouti-Related ProteinLithium ChlorideNR2A NMDA receptorNR2B NMDA receptorPhenolsPiperidinesReceptors, N-Methyl-D-AspartateRo 25-6981feeding behaviornauseaNR2B signaling

Identifiers

PMID23964123
PMCPMC3767546
OpenAlexW1971396402

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.