Evidence map›Paper›PMID 32666287›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2020

Methyl jasmonate reverses chronic stress-induced memory dysfunctions through modulation of monoaminergic neurotransmission, antioxidant defense system, and Nrf2 expressions.

Oritoke M Aluko, Solomon Umukoro

Abstract read
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In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.3field-weighted citation impact, top 54% 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

6 citing papers in PubMed, 12 citations in OpenAlex.

  1. "Methyl jasmonate: bridging plant defense mechanisms and human therapeutics".Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Therapeutic Potential of Plant Oxylipins.International journal of molecular sciences · 2022
    Review
  6. Methyl Jasmonate: Behavioral and Molecular Implications in Neurological Disorders.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2021
    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

2 authors at 2 institutions in 1 country.

Oritoke M AlukoDepartment of Physiology, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria. omaluko@futa.edu.ng.ORCID http://orcid.org/0000-0002-6385-8229
Solomon UmukoroNeuropharmacology Unit, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria.
Federal University of Technology · NGUniversity of Ibadan · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Unpredictable chronic mild stress (UCMS) has been shown to cause memory loss via increased oxidative stress and deregulation of monoaminergic and cholinergic neurotransmissions. Although the benefits of methyl jasmonate (MJ), a well-known anti-stress plant hormone against chronic stress-induced psychopathologies, have been earlier reported, its effects on antioxidant defense molecules, monoaminergic transmitters, and nuclear factor erythroid 2-related factor 2 (Nrf2) immunopositive cells have not been extensively studied. The present study was designed to examine its effect on memory functions, antioxidant biomarkers, monoaminergic transmitters, and Nrf2 immunopositive cell expression in rats exposed to UCMS. Rats received an intraperitoneal injection of MJ (10, 25, and 50 mg/kg) 30 min before exposure to UCMS daily for 28 days. Memory function was assessed on day 29 using a modified elevated plus maze and novel object recognition tests. The antioxidant biomarkers, level of monoamines (serotonin, noradrenaline, and dopamine), and Nrf2 immunopositive cell expression were determined in the rat brain tissues. The activity of cholinesterase and monoamine oxidase enzymes was also determined. MJ attenuated memory deficits and elevated the brain levels of monoamines in UCMS rats. UCMS-induced increase of brain cholinesterase and monoamine oxidase activities was inhibited by MJ. Also, MJ attenuated UCMS-induced decrease in antioxidant enzymes (CAT, GPx, GST, and SOD) and thiol contents in the brains of rats. UCMS-induced increase in NO level and Nrf2 immunopositive cell expression in the rat's brain was attenuated by MJ. Taken together, these findings suggest that increasing antioxidant defense molecules and monoaminergic/cholinergic neurotransmitters and decreasing the Nrf2 immunopositive cell expressions may contribute to the memory-promoting effects of MJ in rats exposed to UCMS.

Indexed as

AcetatesAnimalsAntioxidantsBiogenic MonoaminesBrainCyclopentanesDose-Response Relationship, DrugGene ExpressionMaleMemory DisordersNF-E2-Related Factor 2OxylipinsPlant Growth RegulatorsRatsRats, WistarStress, PsychologicalAcetatesAntioxidantsBiogenic MonoaminesCyclopentanesmethyl jasmonateNfe2l2 protein, ratNF-E2-Related Factor 2OxylipinsPlant Growth RegulatorsAntioxidant actionChronic stressMemory behaviorMethyl jasmonateNeurotransmitter levelsNrf2 expression

Identifiers

PMID32666287
OpenAlexW3042464395

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.