Evidence map›Paper›PMID 25084759›Full record

ArticleMolecular neurobiology2015

Agmatine induces Nrf2 and protects against corticosterone effects in hippocampal neuronal cell line.

Andiara E Freitas, Javier Egea, Izaskun Buendía, Elisa Navarro, Patricia Rada, Antonio Cuadrado, Ana Lúcia S Rodrigues, Manuela G López

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular neurobiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

30 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
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  4. Article
  5. Altered Arginine/Agmatine Pathway and Polyamines in Adolescents Diagnosed with Major Depressive Disorder.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2024
    Article
  6. Article
  7. Agmatine-IRF2BP2 interaction induces M2 phenotype of microglia by increasing IRF2-KLF4 signaling.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023
    Article
  8. 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

8 authors at 3 institutions in 2 countries.

Andiara E FreitasInstituto Teofilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, 4-28029, Madrid, Spain, andiaraef@gmail.com.
Javier Egea
Izaskun Buendía
Elisa Navarro
Patricia Rada
Antonio Cuadrado
Ana Lúcia S Rodrigues
Manuela G López
Universidad Autónoma de Madrid · ESInstituto de Investigaciones Biomédicas Sols-Morreale · ESUniversidade Federal de Santa Catarina · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hyperactivation of the hypothalamic-pituitary-adrenal axis is a common finding in major depression; this may lead to increased levels of cortisol, which are known to cause oxidative stress imbalance and apoptotic neuronal cell death, particularly in the hippocampus, a key region implicated in mood regulation. Agmatine, an endogenous metabolite of L-arginine, has been proposed for the treatment of major depression. Corticosterone induced apoptotic cell death and increased ROS production in cultured hippocampal neuronal cells, effects that were abolished in a concentration- and time-dependent manner by agmatine. Interestingly, the combination of sub-effective concentrations of agmatine with fluoxetine or imipramine afforded synergic protection. The neuroprotective effect of agmatine was abolished by yohimbine (α2-adrenoceptor antagonist), ketanserin (5-HT2A receptor antagonist), LY294002 (PI3K inhibitor), PD98059 (MEK1/2 inhibitor), SnPP (HO-1 inhibitor), and cycloheximide (protein synthesis inhibitor). Agmatine increased Akt and ERK phosphorylation and induced the transcription factor Nrf2 and the proteins HO-1 and GCLc; induction of these proteins was prevented by yohimbine, ketanserin, LY294002, and PD98059. In conclusion, agmatine affords neuroprotection against corticosterone effects by a mechanism that implicates Nrf2 induction via α2-adrenergic and 5-HT2A receptors, Akt and ERK pathways, and HO-1 and GCLc expression.

Indexed as

AgmatineAnimalsCell LineCorticosteroneHippocampusHypothalamo-Hypophyseal SystemMAP Kinase Signaling SystemMiceNF-E2-Related Factor 2Phosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptor, Serotonin, 5-HT2AAgmatineCorticosteroneNfe2l2 protein, mouseNF-E2-Related Factor 2Phosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptor, Serotonin, 5-HT2A

Identifiers

PMID25084759
OpenAlexW2076636516

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.