Evidence map›Paper›PMID 27007604›Full record

ArticlePsychopharmacology2016

Piromelatine ameliorates memory deficits associated with chronic mild stress-induced anhedonia in rats.

Wan Fu, Heng Xie, Moshe Laudon, Shouhong Zhou, Shaowen Tian, Yong You

Abstract read
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 20% 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

16 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Serotonergic Regulation in Alzheimer's Disease.International journal of molecular sciences · 2025
    Review
  3. Review
  4. Neural plasticity and depression treatment.IBRO neuroscience reports · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Serum orexin-A levels are associated with disease progression and motor impairment in multiple sclerosis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
  13. Article
  14. Article
  15. Review
  16. 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

6 authors at 3 institutions in 2 countries.

Wan FuDepartment of Neurology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
Heng XieDepartment of Neurology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
Moshe LaudonNeurim Pharmaceuticals Ltd., Tel-Aviv, Israel.
Shouhong ZhouDepartment of Physiology, Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
Shaowen TianDepartment of Physiology, Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China. tsw.neuro@126.com.
Yong YouDepartment of Neurology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China. youyong2000@126.com.
University of South China · CNFirst Affiliated Hospital of University of South China · CNNeurim Pharmaceuticals (Israel) · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationalePrevious studies have demonstrated that piromelatine (a melatonin and serotonin 5-HT1A and 5-HT1D agonist) exerts an antidepressant activity in rodent models of acute stress and improves cognitive impairments in a rat model of Alzheimer's disease (AD). However, the role of piromelatine in chronic stress-induced memory dysfunction remains unclear.

objectiveThe aim of this study was to determine whether piromelatine ameliorates chronic mild stress (CMS)-induced memory deficits and explore the underlying mechanisms.

methodsRats were exposed randomly to chronic mild stressors for 7 weeks to induce anhedonia (reflected by a significant decrease in sucrose intake), which was used to select rats vulnerable (CMS-anhedonic, CMSA) or resistant (CMS-resistant, CMSR) to stress. Piromelatine (50 mg/kg) was administered daily during the last 2 weeks of CMS. The tail suspension and forced swimming tests were adopted to further characterize vulnerable and resilient rats. The Y-maze and novel object recognition (NOR) tests were used to evaluate memory performance. Brain-derived neurotrophic factor (BDNF), cAMP response element-binding protein (CREB), phosphorylated CREB (pCREB), and cytogenesis were measured in the hippocampus.

resultsWe found that only CMSA rats displayed significant increases in immobility time in the tail suspension and forced swimming tests; memory deficits in the Y-maze and NOR tests; significant decreases in hippocampal BDNF, CREB, and pCREB expression; and cytogenesis. All these anhedonia-associated effects were reversed by piromelatine.

conclusionsPiromelatine ameliorates memory deficits associated with CMS-induced anhedonia in rats and this effect may be mediated by restoring hippocampal BDNF, CREB, and cytogenesis deficits.

Indexed as

AnhedoniaAnimalsAntidepressive AgentsBrain-Derived Neurotrophic FactorCyclic AMP Response Element-Binding ProteinHippocampusIndolesMaleMemory DisordersPyransRandom AllocationRatsRats, WistarSerotonin 5-HT1 Receptor AgonistsStress, PsychologicalAntidepressive AgentsBrain-Derived Neurotrophic FactorCyclic AMP Response Element-Binding ProteinIndolesN-(2-(5-methoxy-indol-3-yl)-ethyl)-4-oxo-4H-pyran-2-carboxamidePyransSerotonin 5-HT1 Receptor AgonistsBDNFChronic mild stressCREBMemory deficitsNeurogenesisPiromelatine

Identifiers

PMID27007604
OpenAlexW2311108699

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.