Evidence mapPaperPMID 33514836Full record

ArticleScientific reports2021

Dexamethasone increased the survival rate in Plasmodium berghei-infected mice.

Danilo Reymão Moreira, Ana Carolina Musa Gonçalves Uberti, Antonio Rafael Quadros Gomes, Michelli Erica Souza Ferreira, Aline da Silva Barbosa, Everton Luiz Pompeu Varela, Maria Fani Dolabela, Sandro Percário

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. 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
1.4field-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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Nitric oxide in parasitic infections: a friend or foe?Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022
    Review
  6. Oxidative Stress in Malaria: Potential Benefits of Antioxidant Therapy.International journal of molecular sciences · 2022
    Review
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 2 institutions in 1 country.

Danilo Reymão MoreiraOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.
Ana Carolina Musa Gonçalves UbertiOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.
Antonio Rafael Quadros GomesOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.
Michelli Erica Souza FerreiraLaboratory of Pathophysiology and Therapeutic Research, Centro de Ciências Sociais Saúde e Tecnologia - CCSST, Federal University of Maranhão, Campus Avançado - Bom Jesus, Prédio de Medicina, Av. da Universidade, S/N, Imperatriz, MA, 65915-240, Brazil.ORCID http://orcid.org/0000-0002-3073-3518
Aline da Silva BarbosaOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.
Everton Luiz Pompeu VarelaOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.ORCID http://orcid.org/0000-0001-9710-3791
Maria Fani DolabelaInstitute of Health Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil.ORCID http://orcid.org/0000-0003-0804-5804
Sandro PercárioOxidative Stress Research Laboratory, Institute of Biological Sciences, Federal University of Pará, Av. Augusto Corrêa, 01, Belém, PA, 66075-110, Brazil. percario@ufpa.br.ORCID http://orcid.org/0000-0002-9528-0361
Universidade Federal do Pará · BRUniversidade Federal do Maranhão · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study aimed to evaluate the effects of dexamethasone on the redox status, parasitemia evolution, and survival rate of Plasmodium berghei-infected mice. Two-hundred and twenty-five mice were infected with Plasmodium berghei and subjected to stimulation or inhibition of NO synthesis. The stimulation of NO synthesis was performed through the administration of L-arginine, while its inhibition was made by the administration of dexamethasone. Inducible NO synthase (iNOS) inhibition by dexamethasone promoted an increase in the survival rate of P. berghei-infected mice, and the data suggested the participation of oxidative stress in the brain as a result of plasmodial infection, as well as the inhibition of brain NO synthesis, which promoted the survival rate of almost 90% of the animals until the 15th day of infection, with possible direct interference of ischemia and reperfusion syndrome, as seen by increased levels of uric acid. Inhibition of brain iNOS by dexamethasone caused a decrease in parasitemia and increased the survival rate of infected animals, suggesting that NO synthesis may stimulate a series of compensatory redox effects that, if overstimulated, may be responsible for the onset of severe forms of malaria.

Indexed as

AnimalsArginineDexamethasoneEnzyme InhibitorsMalariaMaleMiceNitric OxideParasitemiaPlasmodium bergheiArginineDexamethasoneEnzyme InhibitorsNitric Oxide

Identifiers

PMID33514836
PMCPMC7846581
OpenAlexW3124385835

What Socratic holds

Textmetadata
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 Socratic graph.