Evidence map›Paper›PMID 26134625›Full record

ArticleBMC complementary and alternative medicine2015

Antinociceptive effects of hydroalcoholic extract from Euterpe oleracea Mart. (Açaí) in a rodent model of acute and neuropathic pain.

Roberto T Sudo, Miguel L Neto, Carlos E S Monteiro, Rachel V Amaral, Ângela C Resende, Pergentino J C Souza, Gisele Zapata-Sudo, Roberto S Moura

Open access · goldAbstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Açaí (Nutrients · 2023
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The Use ofBiomolecules · 2020
    Review
  11. Review
  12. Article
  13. Analgesic effects of Marasmius androsaceus mycelia ethanol extract and possible mechanisms in mice.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2018
    Article
  14. Novel agonist of αJournal of pain research · 2018
    Article
  15. Article
  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

8 authors at 3 institutions in 1 country.

Roberto T SudoProgram of Research in Drug Development, Institute of Biomedical Science, Federal University of Rio de Janeiro, UFRJ, Brazil. Av. Carlos Chagas Filho, 373 - Centro de Ciências da Saúde - bloco J, sala 14. Cidade Universitária - Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil. rtsudo@icb.ufrj.br.
Miguel L NetoDepartment of Pharmacology and Psychobiology, IBRAG, State University of Rio de Janeiro, UERJ, Av. 28 de setembro, 87 fundos 5° andar sala 7, Vila Isabel, Rio de Janeiro, 20551-030, Brazil. mdlemos@oi.com.br.
Carlos E S MonteiroProgram of Research in Drug Development, Institute of Biomedical Science, Federal University of Rio de Janeiro, UFRJ, Brazil. Av. Carlos Chagas Filho, 373 - Centro de Ciências da Saúde - bloco J, sala 14. Cidade Universitária - Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil. cadusilvarj@ig.com.br.
Rachel V AmaralProgram of Research in Drug Development, Institute of Biomedical Science, Federal University of Rio de Janeiro, UFRJ, Brazil. Av. Carlos Chagas Filho, 373 - Centro de Ciências da Saúde - bloco J, sala 14. Cidade Universitária - Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil. rarav@globo.com.
Ângela C ResendeDepartment of Pharmacology and Psychobiology, IBRAG, State University of Rio de Janeiro, UERJ, Av. 28 de setembro, 87 fundos 5° andar sala 7, Vila Isabel, Rio de Janeiro, 20551-030, Brazil. angelacr@hotmail.com.
Pergentino J C SouzaSchool of Pharmacy, Federal University of Para, Para, Brazil. pjcsou@ufpa.br.
Gisele Zapata-SudoProgram of Research in Drug Development, Institute of Biomedical Science, Federal University of Rio de Janeiro, UFRJ, Brazil. Av. Carlos Chagas Filho, 373 - Centro de Ciências da Saúde - bloco J, sala 14. Cidade Universitária - Ilha do Fundão, Rio de Janeiro, 21941-902, Brazil. gsudo@icb.ufrj.br.
Roberto S MouraDepartment of Pharmacology and Psychobiology, IBRAG, State University of Rio de Janeiro, UERJ, Av. 28 de setembro, 87 fundos 5° andar sala 7, Vila Isabel, Rio de Janeiro, 20551-030, Brazil. robertosoaresdemoura@gmail.com.
Universidade Federal do Rio de Janeiro · BRUniversidade do Estado do Rio de Janeiro · BRUniversidade Federal do Pará · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlants rich in flavonoids, such as açaí (Euterpe oleraceae Mart.), can induce antinociception in experimental animals. Here, we tested an extract obtained from the stones of açaí fruits (açaí stone extract, ASE), a native plant from the Amazon region of Brazil, in models of acute/inflammatory and chronic pain.

methodsAntinociceptive effects of ASE were evaluated in the hot plate, formalin, acetic acid writhing, carrageenan, and neuropathic pain models, as well as in thermal hyperalgesia and mechanical allodynia models induced by spinal nerve ligation. Antinociceptive activities were modulated by the administration of cholinergic, adrenergic, opioid, and L-arginine-NO antagonists.

resultsOral administration of ASE (30, 100, or 300 mg.kg(-1)) dose-dependently reduced nociceptive responses to acute/inflammatory pain in mice, including thermal hyperalgesia, acetic acid-induced writhing, and carrageenan-induced thermal hyperalgesia. Moreover, ASE reduced the neurogenic and inflammatory phases after intraplantar injection of formalin in mice. The antinociceptive effect of ASE (100 mg · kg(-1)) in a hot plate protocol, was inhibited by pre-treatment with naloxone (1 mg · kg(-1)), atropine (2 mg · kg(-1)), yohimbine (5 mg · kg(-1)), or L-NAME (30 mg · kg(-1)). Furthermore, ASE prevented chronic pain in a rat spinal nerve ligation model, including thermal hyperalgesia and mechanical allodynia.

conclusionASE showed significant antinociceptive effect via a multifactorial mechanism of action, indicating that the extract may be useful in the development of new analgesic drugs.

Indexed as

AnalgesicsPlant ExtractsAnimalsBehavior, AnimalDisease Models, AnimalEuterpeInflammationMiceNeuralgiaRatsAnalgesicsPlant Extracts

Identifiers

PMID26134625
PMCPMC4489033
OpenAlexW1888909936

What OpenQuestion holds

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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.