Evidence map›Paper›PMID 32546855›Full record

ArticleInternational journal of obesity (2005)2020

Fish oil supplementation alleviates metabolic and anxiodepressive effects of diet-induced obesity and associated changes in brain lipid composition in mice.

Geneviève Demers, Jerome Roy, Arturo Israel Machuca-Parra, Zahra Dashtehei Pour, Diane Bairamian, Caroline Daneault, Christine Des Rosiers, Guillaume Ferreira, Thierry Alquier, Stephanie Fulton and 1 more

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In one paragraph

Article in International journal of obesity (2005), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

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  18. A Bidirectional View of Migraine and Diet Relationship.Neuropsychiatric disease and treatment · 2021
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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

11 authors at 4 institutions in 2 countries.

Geneviève DemersCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.
Jerome RoyCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.
Arturo Israel Machuca-ParraCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.
Zahra Dashtehei PourCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.
Diane BairamianCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.ORCID http://orcid.org/0000-0002-8673-1052
Caroline DaneaultMontreal Heart Institute, Montréal, QC, Canada.
Christine Des RosiersDepartments of Nutrition, Université de Montréal, MontrealQC, QC, H2X 0A9, Canada.
Guillaume FerreiraNutrition and Integrative Neurobiology Unit, UMR1296 INRA - Université de Bordeaux, Bordeaux, France.ORCID http://orcid.org/0000-0001-5984-8143
Thierry AlquierCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada.ORCID http://orcid.org/0000-0001-8171-802X
Stephanie FultonCentre de Recherche du CHUM and Montreal Diabetes Research Center, Montreal, QC, H2X 0A9, Canada. stephanie.fulton@umontreal.ca.
Representative of consortium
Université de Montréal · CAMontreal Heart Institute · CACentre Hospitalier de l’Université de Montréal · CAUniversité de Bordeaux · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveObesity significantly elevates the odds of developing mood disorders. Chronic consumption of a saturated high-fat diet (HFD) elicits anxiodepressive behavior in a manner linked to metabolic dysfunction and neuroinflammation in mice. Dietary omega-3 polyunsaturated fatty acids (n-3 PUFA) can improve both metabolic and mood impairments by relieving inflammation. Despite these findings, the effects of n-3 PUFA supplementation on energy homeostasis, anxiodepressive behavior, brain lipid composition, and gliosis in the diet-induced obese state are unclear.

methodsMale C57Bl/6J mice were fed a saturated high-fat diet (HFD) or chow for 20 weeks. During the last 5 weeks mice received daily gavage ("supplementation") of fish oil (FO) enriched with equal amounts of docosahexaenoic (DHA) and eicosapentaenoic acid (EPA) or control corn oil. Food intake and body weight were measured throughout while additional metabolic parameters and anxiety- and despair-like behavior (elevated-plus maze, light-dark box, and forced swim tasks) were evaluated during the final week of supplementation. Forebrain lipid composition and markers of microglia activation and astrogliosis were assessed by gas chromatography-mass spectrometry and real-time PCR, respectively.

resultsFive weeks of FO supplementation corrected glucose intolerance and attenuated hyperphagia in HFD-induced obese mice without affecting adipose mass. FO supplementation also defended against the anxiogenic and depressive-like effects of HFD. Brain lipids, particularly anti-inflammatory PUFA, were diminished by HFD, whereas FO restored levels beyond control values. Gene expression markers of brain reactive gliosis were supressed by FO.

conclusionsSupplementing a saturated HFD with FO rich in EPA and DHA corrects glucose intolerance, inhibits food intake, suppresses anxiodepressive behaviors, enhances anti-inflammatory brain lipids, and dampens indices of brain gliosis in obese mice. Together, these findings support increasing dietary n-3 PUFA for the treatment of metabolic and mood disturbances associated with excess fat intake and obesity.

Indexed as

BrainObesityAdipose TissueAnimalsAnxietyBehavior, AnimalBrain ChemistryDepressionDietary SupplementsDiet, High-FatFish OilsMaleMiceMice, Inbred C57BLFish Oils

Identifiers

PMID32546855
OpenAlexW3034793440

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.