Evidence map›Paper›PMID 25192637›Full record

ArticleBehavioural brain research2014

Xanthohumol improved cognitive flexibility in young mice.

Daniel R Zamzow, Valerie Elias, LeeCole L Legette, Jaewoo Choi, J Fred Stevens, Kathy R Magnusson

Open access · greenAbstract read
In one paragraph

Article in Behavioural brain research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.7field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 57 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

6 authors at 1 institution in 1 country.

Daniel R ZamzowMolecular and Cellular Biology Program, Oregon State University, Corvallis, OR 97331, USA; Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
Valerie EliasDepartment of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
LeeCole L LegetteLinus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
Jaewoo ChoiLinus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
J Fred StevensLinus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA.
Kathy R MagnussonMolecular and Cellular Biology Program, Oregon State University, Corvallis, OR 97331, USA; Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA. Electronic address: Kathy.Magnusson@oregonstate.edu.
Oregon State University · US

Funding

Reducing Susceptibility to Environmental Stress Throughout the Life SpanP30ES000210 · NIEHS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 1985 to 2015
$21.4M
SUBUNIT CHANGES IN AGING NMDA RECEPTORS AFFECT MEMORYR01AG016322 · NIA · UNIVERSITY OF IDAHO · PI MAGNUSSON, KATHY R · 1999 to 2013
$2.9M
NIA NIH HHS AG16322NIA NIH HHS R01 AG016322NIEHS NIH HHS P30 ES000210NIEHS NIH HHS P30ES000210
6 · The paper itself

Abstract

The protein palmitoylation cycle has been shown to be important for protein signaling and synaptic plasticity. Data from our lab showed a change in the palmitoylation status of certain proteins with age. A greater percentage of the NMDA receptor subunits GluN2A and GluN2B, along with Fyn and PSD95 proteins, were palmitoylated in the old mice. The higher level of protein palmitoylation was also associated with poorer learning scores. Xanthohumol is a prenylated flavonoid that has been shown to increase beta-oxidation in the livers of rodents, decreasing circulating free fatty acids in the serum. What is not known is whether the application of xanthohumol could influence the palmitoylation status of proteins. In this study, young and old mice were fed a diet supplemented with xanthohumol for 8 weeks. Spatial memory was assessed with the Morris water maze and protein palmitoylation quantified. The young xanthohumol-treated mice showed a significant improvement in cognitive flexibility. However, this appeared to be associated with the young control mice, on a defined, phytoestrogen-deficient diet, performing as poorly as the old mice and xanthohumol reversing this effect. The old mice receiving xanthohumol did not significantly improve their learning scores. Xanthohumol treatment was unable to affect the palmitoylation of NMDA receptor subunits and associated proteins assessed in this study. This evidence suggests that xanthohumol may play a role in improving cognitive flexability in young animals, but it appears to be ineffective in adjusting the palmitoylation status of neuronal proteins in aged individuals.

Indexed as

AgingAnalysis of VarianceAnimalsBody WeightCognitionDisks Large Homolog 4 ProteinFatty AcidsFlavonoidsFrontal LobeGene Expression RegulationGuanylate KinasesHippocampusMaleMaze LearningMembrane ProteinsMiceDisks Large Homolog 4 ProteinDlg4 protein, mouseFatty AcidsFlavonoidsFyn protein, mouseGuanylate KinasesMembrane ProteinsNR2B NMDA receptorPropiophenonesProto-Oncogene Proteins c-fynReceptors, N-Methyl-D-AspartatexanthohumolAgingMemoryPalmitatePalmitoylationReversal trials

Identifiers

PMID25192637
PMCPMC4281268
OpenAlexW2084377883

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.