Cited by 21Adenosine and Purinergic SignalingTreatment of Major DepressionNeurotransmitter Receptor Influence on Behavior

Reduced P2X receptor levels are associated with antidepressant effect in the learned helplessness model

Open access
Ribeiro, Deidiane Elisa, Casarotto, Plinio C., Staquini, Laura, Pinto e Silva, Maria Augusta, Biojone, Caroline, Wegener, Gregers, Joca, Samia·2019·PeerJ

Abstract

Purinergic receptors, especially P2RX, are associated to the severity of symptoms in patients suffering from depressive and bipolar disorders, and genetic deletion or pharmacological blockade of P2RX7 induces antidepressant-like effect in preclinical models. However, there is scarce evidence about the alterations in P2RX7 or P2RX4 levels and in behavioral consequences induced by previous exposure to stress, a major risk factor for depression in humans. In the present study, we evaluated the effect of imipramine (IMI) on P2RX7 and P2RX4 levels in dorsal and ventral hippocampus as well as in the frontal cortex of rats submitted to the pretest session of learned helplessness (LH) paradigm. Repeated, but not acute administration of IMI (15 mg/kg ip) reduced the levels of both P2RX7 and P2RX4 in the ventral, but not in dorsal hippocampus or frontal cortex. In addition, we tested the effect of P2RX7/P2RX4 antagonist brilliant blue G (BBG: 25 or 50 mg/kg ip) on the LH paradigm. We observed that repeated (7 days) but not acute (1 day) treatment with BBG (50 mg) reduced the number of failures to escape the shocks in the test session, a parameter mimicked by the same regimen of IMI treatment. Taken together, our data indicates that pharmacological blockade or decrease in the expression of P2RX7 is associated to the antidepressant-like behavior observed in the LH paradigm after repeated drug administration.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.7717/peerj.7834

Cites

78 of 78 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Antidepressant treatment decreased P2X7 receptor expression in the ventral hippocampus of stressed animals.

    “Corroborating this hypothesis, antidepressant treatment decreased P2X7 receptor expression in the ventral hippocampus of stressed animals [146].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ribeiro, D. E., Casarotto, P. C., Staquini, L., Pinto e Silva, M. A., Biojone, C., Wegener, G., & Joca, S.
Affiliations
  • Universidade de São Paulo (BR)
  • University of Helsinki (FI)
  • Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
  • Aarhus University (DK)
Venue
PeerJ
Publisher
PeerJ
Published
2019-10-21
Volume
7
Pages
e7834
ISSN
2167-8359 (ISSN-L)
OpenAlex
W2980612713
Cited by
21
References
77
Citations by year
2026: 1 · 2025: 5 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 2 · 2020: 2
FWCI
1.50
Type
journal article
Language
en
Open access
Locations
  • PeerJ (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Työväentutkimus Vuosikirja (submittedVersion)
  • Scopus (Elsevier) (submittedVersion)
Funders
  • State of São Paulo Research Foundation (2013/01737-7)
  • Aarhus University Research Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Adenosine and Purinergic Signaling
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
P2X7 receptor, P2X4 receptor, purinergic receptors, antidepressant effects, learned helplessness, imipramine, Brilliant Blue G, dorsal hippocampus, ventral hippocampus, frontal cortex, stress, depression, receptor expression levels

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review