Evidence map›Paper›PMID 33223517›Full record

ArticleInternational journal of obesity (2005)2021

Dietary vitamin A supplementation prevents early obesogenic diet-induced microbiota, neuronal and cognitive alterations.

Essi F Biyong, Serge Alfos, Fabien Dumetz, Jean-Christophe Helbling, Agnès Aubert, Julie Brossaud, Aline Foury, Marie-Pierre Moisan, Sophie Layé, Emmanuel Richard and 9 more

Abstract read
PubMed Publisher
In one paragraph

Article in International journal of obesity (2005), 2021. 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
2.2field-weighted citation impact, top 12% 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, 35 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Neuroprotective effects ofFrontiers in nutrition · 2026
    Article
  4. Review
  5. Vitamin A and Its Related Diseases.Food science & nutrition · 2025
    Review
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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

19 authors at 3 institutions in 2 countries.

Essi F BiyongUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.ORCID http://orcid.org/0000-0003-0285-6788
Serge AlfosUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Fabien DumetzUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Jean-Christophe HelblingUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Agnès AubertUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Julie BrossaudUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Aline FouryUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.ORCID http://orcid.org/0000-0002-4552-3222
Marie-Pierre MoisanUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Sophie LayéUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Emmanuel RichardUniversité de Bordeaux, INSERM, U1035, CHU Bordeaux, Place Amélie Raba Léon, 33000, Bordeaux, France.
Elaine PattersonTeagasc Food Research Centre, Moorepark, Co, Cork, Ireland.
Kiera MurphyTeagasc Food Research Centre, Moorepark, Co, Cork, Ireland.
Kieran ReaAPC Microbiome Ireland & Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
Catherine StantonTeagasc Food Research Centre, Moorepark, Co, Cork, Ireland.
Harriët SchellekensAPC Microbiome Ireland & Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
John F CryanAPC Microbiome Ireland & Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.ORCID http://orcid.org/0000-0001-5887-2723
Lucile CapuronUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Véronique PalletUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France.
Guillaume FerreiraUniversité de Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, UFR de Pharmacie, 146 Rue Léo Saignat, 33076, Bordeaux Cedex, France. guillaume.ferreira@inrae.fr.ORCID http://orcid.org/0000-0001-5984-8143
Université de Bordeaux · FRTeagasc - The Irish Agriculture and Food Development Authority · IEUniversity College Cork · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly consumption of obesogenic diets, rich in saturated fat and added sugar, is associated with a plethora of biological dysfunctions, at both peripheral and brain levels. Obesity is also linked to decreased vitamin A bioavailability, an essential molecule for brain plasticity and memory function.

methodsHere we investigated in mice whether dietary vitamin A supplementation (VAS) could prevent some of the metabolic, microbiota, neuronal and cognitive alterations induced by obesogenic, high-fat and high-sugar diet (HFSD) exposure from weaning to adulthood, i.e. covering periadolescent period.

resultsAs expected, VAS was effective in enhancing peripheral vitamin A levels as well as hippocampal retinoic acid levels, the active metabolite of vitamin A, regardless of the diet. VAS attenuated HFSD-induced excessive weight gain, without affecting metabolic changes, and prevented alterations of gut microbiota α-diversity. In HFSD-fed mice, VAS prevented recognition memory deficits but had no effect on aversive memory enhancement. Interestingly, VAS alleviated both HFSD-induced higher neuronal activation and lower glucocorticoid receptor phosphorylation in the hippocampus after training.

conclusionDietary VAS was protective against the deleterious effects of early obesogenic diet consumption on hippocampal function, possibly through modulation of the gut-brain axis.

Indexed as

Dietary SupplementsVitamin AAnimalsBrain-Gut AxisCognitionDiet, High-FatGastrointestinal MicrobiomeHippocampusMaleMemoryMiceMice, Inbred C57BLVitamin A

Identifiers

PMID33223517
OpenAlexW3106961495

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.