Evidence map›Paper›PMID 26171719›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2016

Dampened Mesolimbic Dopamine Function and Signaling by Saturated but not Monounsaturated Dietary Lipids.

Cecile Hryhorczuk, Marc Florea, Demetra Rodaros, Isabelle Poirier, Caroline Daneault, Christine Des Rosiers, Andreas Arvanitogiannis, Thierry Alquier, Stephanie Fulton

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

64 citing papers in PubMed, 119 citations in OpenAlex.

  1. Obesity and Depression: A Pathophysiotoxic Relationship.International journal of molecular sciences · 2025
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  9. Obesity and Depression: Common Link and Possible Targets.CNS & neurological disorders drug targets · 2024
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4 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Cecile HryhorczukCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, Canada.
Marc FloreaCenter for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada.
Demetra RodarosCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, Canada.
Isabelle PoirierDepartment of Nutrition, Université de Montréal, Montreal, QC, Canada.
Caroline DaneaultMontreal Heart Institute, Montreal, QC, Canada.
Christine Des RosiersDepartment of Nutrition, Université de Montréal, Montreal, QC, Canada.
Andreas ArvanitogiannisCenter for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada.
Thierry AlquierCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, Canada.
Stephanie FultonCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, Canada.
Université de Montréal · CAConcordia University · CAMontreal Heart Institute · CA

Funding

Canadian Institutes of Health Research MOP115042Canadian Institutes of Health Research MOP123280Canadian Institutes of Health Research MOP9575
6 · The paper itself

Abstract

Overconsumption of dietary fat is increasingly linked with motivational and emotional impairments. Human and animal studies demonstrate associations between obesity and blunted reward function at the behavioral and neural level, but it is unclear to what degree such changes are a consequence of an obese state and whether they are contingent on dietary lipid class. We sought to determine the impact of prolonged ad libitum intake of diets rich in saturated or monounsaturated fat, separate from metabolic signals associated with increased adiposity, on dopamine (DA)-dependent behaviors and to identify pertinent signaling changes in the nucleus accumbens (NAc). Male rats fed a saturated (palm oil), but not an isocaloric monounsaturated (olive oil), high-fat diet exhibited decreased sensitivity to the rewarding (place preference) and locomotor-sensitizing effects of amphetamine as compared with low-fat diet controls. Blunted amphetamine action by saturated high-fat feeding was entirely independent of caloric intake, weight gain, and plasma levels of leptin, insulin, and glucose and was accompanied by biochemical and behavioral evidence of reduced D1R signaling in the NAc. Saturated high-fat feeding was also tied to protein markers of increased AMPA receptor-mediated plasticity and decreased DA transporter expression in the NAc but not to alterations in DA turnover and biosynthesis. Collectively, the results suggest that intake of saturated lipids can suppress DA signaling apart from increases in body weight and adiposity-related signals known to affect mesolimbic DA function, in part by diminishing D1 receptor signaling, and that equivalent intake of monounsaturated dietary fat protects against such changes.

Indexed as

AmphetamineAnimalsBenzazepinesCentral Nervous System StimulantsConditioning, PsychologicalDiet, High-FatDopamineDopamine AgonistsMaleMotor ActivityNucleus AccumbensOlive OilPalm OilPlant OilsRandom AllocationRats, WistarAmphetamineBenzazepinesCentral Nervous System StimulantsDopamineDopamine AgonistsOlive OilPalm OilPlant OilsReceptors, AMPAReceptors, Dopamine D1SK&F 82958

Identifiers

PMID26171719
PMCPMC4707827
OpenAlexW959791702

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.