Evidence map›Paper›PMID 20041129›Full record

ArticlePloS one2009

Critical role of arcuate Y4 receptors and the melanocortin system in pancreatic polypeptide-induced reduction in food intake in mice.

Shu Lin, Yan-Chuan Shi, Ernie Yulyaningsih, Aygul Aljanova, Lei Zhang, Laurence Macia, Amy D Nguyen, En-Ju Deborah Lin, Matthew J During, Herbert Herzog and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 95 citations in OpenAlex.

  1. Illuminating Neuropeptide Y YACS pharmacology & translational science · 2024
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  9. GPCRs in Autocrine and Paracrine Regulations.Frontiers in endocrinology · 2019
    Review
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  12. Review
  13. Article
  14. Article
  15. New targets to treat obesity and the metabolic syndrome.European journal of pharmacology · 2015
    Review
  16. Article
  17. The future role of gut hormones in the treatment of obesity.Therapeutic advances in chronic disease · 2014
    Review
  18. Review
  19. Article
  20. Review
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 at 4 institutions in 2 countries.

Shu LinNeuroscience Program, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, New South Wales, Australia.
Yan-Chuan Shi
Ernie Yulyaningsih
Aygul Aljanova
Lei Zhang
Laurence Macia
Amy D Nguyen
En-Ju Deborah Lin
Matthew J During
Herbert Herzog
Amanda Sainsbury
Garvan Institute of Medical Research · AUCancer Genetics (United States) · USSt Vincent's Hospital Sydney · AUThe Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPancreatic polypeptide (PP) is a potent anti-obesity agent known to inhibit food intake in the absence of nausea, but the mechanism behind this process is unknown. METHODOLOGY/PRINCIPAL

findingsHere we demonstrate that in response to i.p. injection of PP in wild type but not in Y4 receptor knockout mice, immunostaining for the neuronal activation marker c-Fos is induced specifically in neurons of the nucleus tractus solitarius and the area postrema in the brainstem, notably in cells also showing immunostaining for tyrosine hydroxylase. Importantly, strong c-Fos activation is also detected in the arcuate nucleus of the hypothalamus (ARC), particularly in neurons that co-express alpha melanocyte stimulating hormone (alpha-MSH), the anorexigenic product of the proopiomelanocortin (POMC) gene. Interestingly, other hypothalamic regions such as the paraventricular nucleus, the ventromedial nucleus and the lateral hypothalamic area also show c-Fos induction after PP injection. In addition to c-Fos activation, PP injection up-regulates POMC mRNA expression in the ARC as detected by in situ hybridization. These effects are a direct consequence of local Y4 signaling, since hypothalamus-specific conditional Y4 receptor knockout abolishes PP-induced ARC c-Fos activation and blocks the PP-induced increase in POMC mRNA expression. Additionally, the hypophagic effect of i.p. PP seen in wild type mice is completely absent in melanocortin 4 receptor knockout mice. CONCLUSIONS/SIGNIFICANCE: Taken together, these findings show that PP reduces food intake predominantly via stimulation of the anorexigenic alpha-MSH signaling pathway, and that this effect is mediated by direct action on local Y4 receptors within the ARC, highlighting a potential novel avenue for the treatment of obesity.

Indexed as

alpha-MSHAnimalsArcuate Nucleus of HypothalamusBrain StemEnergy MetabolismFeeding BehaviorGene Expression RegulationGlutamate DecarboxylaseMaleMelanocortinsMiceNeuronsPancreatic PolypeptidePro-OpiomelanocortinProto-Oncogene Proteins c-fosReceptor, Melanocortin, Type 4alpha-MSHGlutamate Decarboxylaseglutamate decarboxylase 2Melanocortinsneuropeptide Y4 receptorPancreatic PolypeptidePro-OpiomelanocortinProto-Oncogene Proteins c-fosReceptor, Melanocortin, Type 4Receptors, Neuropeptide Y

Identifiers

PMID20041129
PMCPMC2796177
OpenAlexW1999508680

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.