Evidence map›Paper›PMID 31991916›Full record

ArticleNutrients2020

Chronic Polyphenon-60 or Catechin Treatments Increase Brain Monoamines Syntheses and Hippocampal SIRT1 Levels Improving Cognition in Aged Rats.

Margarita R Ramis, Fiorella Sarubbo, Silvia Tejada, Manuel Jiménez, Susana Esteban, Antoni Miralles, David Moranta

Open access · goldAbstract readComparative Study
In one paragraph

Article in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.6field-weighted citation impact, top 10% 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, 29 citations in OpenAlex.

  1. Review
  2. Review
  3. Malícia honey (Frontiers in nutrition · 2025
    Article
  4. Exploring the Therapeutic Potential of Green Tea (Mini reviews in medicinal chemistry · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Neuro-Nutraceutical Polyphenols: How Far Are We?Antioxidants (Basel, Switzerland) · 2023
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Sirt1 Activity in the Brain: Simultaneous Effects on Energy Homeostasis and Reproduction.International journal of environmental research and public health · 2021
    Review
  16. Beneficial Effects of Epigallocatechin-3-Molecules (Basel, Switzerland) · 2021
    Review
  17. Article
  18. Article
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

7 authors at 3 institutions in 1 country.

Margarita R RamisLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Fiorella SarubboLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Silvia TejadaLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Manuel JiménezLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Susana EstebanLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Antoni MirallesLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
David MorantaLaboratory of Neurophysiology, Biology Department, University of Balearic Islands (UIB), Ctra. Valldemossa Km 7,5 E-07122 Palma de Mallorca, Spain.
Universitat de les Illes Balears · ESHealth Research Institute of the Balearic Islands · ESSpanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition · ES

Funding

MINECO SAF2014-55903-RPont La Caixa-UIB Program 7/2014Universitat de les Illes Balears (UIB)-Govern Balear ECT 025 09
6 · The paper itself

Abstract

Polyphenolic compounds from green tea have great interest due to its large consumption and therapeutic potential on the age-associated brain decline. The current work compares a similar dose regimen of a whole-green-tea extract and catechin in old rats over the course of 36 days. Results showed a significant improvement in visuo-spatial working memory and episodic memory of old rats after polyphenolic compounds administration assessed by behavioral tests. No effects were observed on the age-associated motor coordination decline. Statistically, results were correlated with significant improvements, mainly in hippocampal and striatal noradrenergic and serotonergic systems, but also with the striatal dopaminergic system. Both polyphenolic treatments also reverted the age-associated reduction of the neuroinflammation by modulating protein sirtuin 1 (SIRT1) expression in hippocampus, but no effects were observed in the usual reduction of the histone-binding protein RBAP46/48 protein linked to aging. These results are in line with previous ones obtained with other polyphenolic compounds, suggesting a general protective effect of all these compounds on the age-associated brain decline, pointing to a reduction of the oxidative stress and neuroinflammatory status reduction as the leading mechanisms. Results also reinforce the relevance of SIRT1-mediated mechanism on the neuroprotective effect and rule out the participation of RBAP46/48 protein.

Indexed as

Cognitive AgingAge FactorsAnimalsBehavior, AnimalBiogenic MonoaminesCatechinCognitionCorpus StriatumHippocampusMaleMemory, EpisodicMemory, Short-TermNeuroprotective AgentsPolyphenolsRats, Sprague-DawleySirtuin 1Biogenic MonoaminesCatechinNeuroprotective AgentsPolyphenolspolyphenon-60Sirt1 protein, ratSirtuin 1brain agingbrain monoamine synthesiscatechingreen teamemoryNF-κBRBAP46/48SIRT1

Identifiers

PMID31991916
PMCPMC7071257
OpenAlexW3002038067

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.