Evidence map›Paper›PMID 29372547›Full record

ArticleMolecular neurobiology2018

Impairment of Novel Object Recognition Memory and Brain Insulin Signaling in Fructose- but Not Glucose-Drinking Female Rats.

Gemma Sangüesa, Mar Cascales, Christian Griñán, Rosa María Sánchez, Núria Roglans, Mercè Pallàs, Juan Carlos Laguna, Marta Alegret

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular neurobiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
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

21 citing papers in PubMed, 51 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Gemma SangüesaDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Mar CascalesDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Christian GriñánDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Rosa María SánchezDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Núria RoglansDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Mercè PallàsDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain.
Juan Carlos LagunaDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain. jclagunae@ub.edu.
Marta AlegretDepartment of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food Sciences, University of Barcelona, Joan XXIII 27-31, 08028, Barcelona, Spain. alegret@ub.edu.ORCID http://orcid.org/0000-0002-5652-8651
Instituto de Salud Carlos III · ESUniversitat de Barcelona · ES

Funding

Agència de Gestió d'Ajuts Universitaris i de Recerca SGR13-00066Ministerio de Economía y Competitividad SAF2013-42982-R
6 · The paper itself

Abstract

Excessive sugar intake has been related to cognitive alterations, but it remains unclear whether these effects are related exclusively to increased energy intake, and the molecular mechanisms involved are not fully understood. We supplemented Sprague-Dawley female rats with 10% w/v fructose in drinking water or with isocaloric glucose solution for 7 months. Cognitive function was assessed through the Morris water maze (MWM) and the novel object recognition (NOR) tests. Plasma parameters and protein/mRNA expression in the frontal cortex and hippocampus were determined. Results showed that only fructose-supplemented rats displayed postprandial and fasting hypertriglyceridemia (1.4 and 1.9-fold, p < 0.05) and a significant reduction in the discrimination index in the NOR test, whereas the results of the MWM test showed no differences between groups. Fructose-drinking rats displayed an abnormal glucose tolerance test and impaired insulin signaling in the frontal cortex, as revealed by significant reductions in insulin receptor substrate-2 protein levels (0.77-fold, p < 0.05) and Akt phosphorylation (0.72-fold, p < 0.05), and increased insulin-degrading enzyme levels (1.86-fold, p < 0.001). Fructose supplementation reduced the expression of antioxidant enzymes and altered the amount of proteins involved in mitochondrial fusion/fission in the frontal cortex. In conclusion, cognitive deficits induced by chronic liquid fructose consumption are not exclusively related to increased caloric intake and are correlated with hypertriglyceridemia, impaired insulin signaling, increased oxidative stress and altered mitochondrial dynamics, especially in the frontal cortex.

Indexed as

MemoryRecognition, PsychologySignal TransductionAnimalsBiomarkersBrainBrain-Derived Neurotrophic FactorCognitionDrinking BehaviorFemaleFructoseGlucoseGlucose Tolerance TestGlycation End Products, AdvancedHippocampusInflammationBiomarkersBrain-Derived Neurotrophic FactorFructoseGlucoseGlycation End Products, AdvancedInsulinInsulin Receptor Substrate ProteinsRNA, MessengerThiobarbituric Acid Reactive SubstancesTriglyceridesCognitive deficitFrontal cortexHippocampusMetabolic dysfunctionsSimple sugars

Identifiers

PMID29372547
OpenAlexW2789433391

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.