Evidence map›Paper›PMID 21458672›Full record

ArticleCell2011

Presynaptic facilitation by neuropeptide signaling mediates odor-driven food search.

Cory M Root, Kang I Ko, Amir Jafari, Jing W Wang

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 294 papers.

0numbers the graph read from it
0cells of the map it votes in
294citing papers in PubMed
14.4field-weighted citation impact, top 1% 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

294 citing papers in PubMed, 554 citations in OpenAlex.

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  11. Hungry for Knowledge: Octopamine Signaling Regulates Hunger-Enhanced Olfactory Learning.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  12. Starve-Feed Cycles Direct Quiescence to Proliferation Transitions inbioRxiv : the preprint server for biology · 2026
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234 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Cory M RootNeurobiology Section, Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA.
Kang I Ko
Amir Jafari
Jing W Wang
University of California San Diego · US

Funding

Drosophila: Metabolic Modulation of Olfactory Circuit Function/Feeding BehaviorR01DK092640 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WANG, JING W · 2011 to 2020
$3.1M
Synaptic Modulation in Neural CircuitsR01DC009597 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WANG, JING W · 2008 to 2017
$3.1M
Neural Circuits underlying Innate Odor Preference in DrosophilaR21DC010458 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WANG, JING W · 2009 to 2010
$371k
Fine tuning odor representation by presynaptic inhibition of receptor neuronsF31DC009511 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ROOT, CORY MATTHEW · 2009 to 2010
$48k
NIDCD NIH HHS 1F31DC009511NIDCD NIH HHS F31 DC009511NIDCD NIH HHS R01 DC009597NIDCD NIH HHS R01DC009597NIDCD NIH HHS R21 DC010458NIDCD NIH HHS R21DC010458NIDDK NIH HHS R01 DK092640
6 · The paper itself

Abstract

Internal physiological states influence behavioral decisions. We have investigated the underlying cellular and molecular mechanisms at the first olfactory synapse for starvation modulation of food-search behavior in Drosophila. We found that a local signal by short neuropeptide F (sNPF) and a global metabolic cue by insulin are integrated at specific odorant receptor neurons (ORNs) to modulate olfactory sensitivity. Results from two-photon calcium imaging show that starvation increases presynaptic activity via intraglomerular sNPF signaling. Expression of sNPF and its receptor (sNPFR1) in Or42b neurons is necessary for starvation-induced food-search behavior. Presynaptic facilitation in Or42b neurons is sufficient to mimic starvation-like behavior in fed flies. Furthermore, starvation elevates the transcription level of sNPFR1 but not that of sNPF, and insulin signaling suppresses sNPFR1 expression. Thus, starvation increases expression of sNPFR1 to change the odor map, resulting in more robust food-search behavior.

Indexed as

Signal TransductionAnimalsArthropod AntennaeDrosophilaDrosophila ProteinsFemaleNeuropeptidesOdorantsReceptors, NeuropeptideReceptors, OdorantSensory Receptor CellsStarvationSynapsesDrosophila Proteinsneuropeptide FNeuropeptidesNPFR protein, DrosophilaReceptors, NeuropeptideReceptors, Odorant

Identifiers

PMID21458672
PMCPMC3073827
OpenAlexW1981922832

What OpenQuestion holds

Textmetadata
LicenceTDM
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.