Evidence map›Paper›PMID 29654812›Full record

ArticlePhysiology & behavior2018

Intermittent, extended access to preferred food leads to escalated food reinforcement and cyclic whole-body metabolism in rats: Sex differences and individual vulnerability.

Samantha R Spierling, Alison D Kreisler, Casey A Williams, Savannah Y Fang, Sarah N Pucci, Kelsey T Kines, Eric P Zorrilla

Open access · greenAbstract read
In one paragraph

Article in Physiology & behavior, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
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  4. The rostromedial tegmental nucleus gates fat overconsumption through ventral tegmental area output in male rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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  14. Insula to ventral striatal projections mediate compulsive eating produced by intermittent access to palatable food.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  15. Probing the motivational circuitry of binge eating.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  16. Article
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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

7 authors at 1 institution in 1 country.

Samantha R SpierlingDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA. Electronic address: samspier@scripps.edu.
Alison D KreislerDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA.
Casey A WilliamsDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA.
Savannah Y FangDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA.
Sarah N PucciDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA.
Kelsey T KinesDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA.
Eric P ZorrillaDepartment of Neuroscience, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA. Electronic address: ezorrilla@scripps.edu.
Scripps Research Institute · US

Funding

Viral Vector CoreP60AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI MARISA ROBERTO · 2003 to 2026
$46.3M
Neurpsychopharmacology-Multidisciplinary TrainingT32AA007456 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI MARISA ROBERTO · 1985 to 2026
$13.4M
SYSTEMIC NEUROPHARMACOLOGYP50AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE · PI KOOB, GEORGE F · 1985 to 2002
$5.1M
Scripps Translational Science InstituteTL1TR001113 · NCATS · SCRIPPS RESEARCH INSTITUTE, THE · PI TOPOL, ERIC JEFFREY · 2013 to 2017
$1.0M
MSTP Summer Undergraduate Research Fellowship (SURF)R25HL084692 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ROSS, ROBERT SCOTT · 2006 to 2010
$603k
Replacement of Small Animal Echocardiographic InstrumentationS10OD010417 · OD · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI ROSS, ROBERT SCOTT · 2012 to 2012
$371k
NCATS NIH HHS TL1 TR001113NHLBI NIH HHS R25 HL084692NIAAA NIH HHS P50 AA006420NIAAA NIH HHS P60 AA006420NIAAA NIH HHS T32 AA007456NIH HHS S10 OD010417
6 · The paper itself

Abstract

Compulsive binge eating is a hallmark of binge eating disorder and bulimia nervosa and is implicated in some obesity cases. Eating disorders are sexually dimorphic, with females more often affected than males. Animal models of binge-like eating based on intermittent access to palatable food exist; but, little is known regarding sex differences or individual vulnerability in these models with respect to the reinforcing efficacy of food, the development of compulsive- and binge-like eating, or associated changes in whole-body metabolism or body composition. Adolescent male (n = 24) and female (n = 32) Wistar rats were maintained on chow or a preferred, high-sucrose, chocolate-flavored diet in continuous or intermittent, extended access conditions. Body weight and composition, intake, fixed- and progressive-ratio operant self-administration, and whole body energy expenditure and respiratory exchange ratios were measured across an 11-week study period. Subgroup analyses were conducted to differentiate compulsive-like "high responder" intermittent access rats that escalated to extreme progressive-ratio self-administration performance vs. more resistant "low responders." Female rats had greater reinforcing efficacy of food than males in all diet conditions and were more often classified as "high responders". In both sexes, rats with intermittent access showed cycling of fuel substrate utilization and whole-body energy expenditure. Further, "high-responding" intermittent access female rats had especially elevated respiratory exchange ratios, indicating a fat-sparing phenotype. Future studies are needed to better understand the molecular and neurobiological basis of the sex and individual differences we have observed in rats and their translational impact for humans with compulsive, binge eating disorders.

Indexed as

Reinforcement, PsychologySex CharacteristicsAnimalsBody CompositionBody WeightBulimiaDisease Models, AnimalDisease SusceptibilityEnergy MetabolismFeeding BehaviorFemaleFoodMaleRats, WistarTaste PerceptionCompulsive eating OR compulsivityEnergy expenditure OR heatFixed-ratio and progressive ratio schedules of food operant self-administrationFood addiction OR addictive eating OR eating addictionOverweight OR obesity OR adiposity OR body composition OR body fat OR body weightRespiratory exchange ratio OR respiratory quotient OR RER

Identifiers

PMID29654812
PMCPMC6019212
OpenAlexW2796560797

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.