Evidence map›Paper›PMID 27503577›Full record

ArticleAntiviral chemistry & chemotherapy2015

Melatonin decreases brain apoptosis, oxidative stress, and CD200 expression and increased survival rate in mice infected by Venezuelan equine encephalitis virus.

Milagros Montiel, Ernesto Bonilla, Nereida Valero, Jesús Mosquera, Luz M Espina, Yasmir Quiroz, Melchor Álvarez-Mon

Open access · bronzeAbstract read
In one paragraph

Article in Antiviral chemistry & chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.7field-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

19 citing papers in PubMed, 30 citations in OpenAlex.

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  11. Melatonin for the Early Treatment of COVID-19: A Narrative Review of Current Evidence and Possible Efficacy.Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2021
    Review
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  13. Pineal hormone melatonin as an adjuvant treatment for COVID‑19 (Review).International journal of molecular medicine · 2021
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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

7 authors at 3 institutions in 2 countries.

Milagros MontielDepartamento de Microbiologia, Escuela de Bioanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Ernesto BonillaInstituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Nereida ValeroInstituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela valero.nereida@gmail.com.
Jesús MosqueraInstituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Luz M EspinaInstituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Yasmir QuirozCentro de Investigaciones Biomédicas, Instituto Venezolano de Investigaciones Científicas (IVIC), Maracaibo, Venezuela.
Melchor Álvarez-MonDepartamento de Enfermedades Inmunitarias y Oncología, Hospital "Príncipe de Asturias," Universidad de Alcalá, Madrid, España.
University of Zulia · VEHospital Universitario Príncipe de Asturias · ESInstituto Venezolano de Investigaciones Científicas · VE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPro-inflammatory and oxidative events during brain Venezuelan equine encephalitis virus infection could lead to apoptosis and induce anti-inflammatory responses (increased expression of CD200). The aim of this study was to determine the effect of melatonin on brain apoptosis, oxidative stress, and CD200 molecule in mice and neuroblastoma cultures infected by Venezuelan equine encephalitis virus.

methodsMice were infected with 10 median lethal doses (LD50) of Venezuelan equine encephalitis virus, treated with melatonin (500 µg/kg bw; three days before infection and during all experimental time) and sacrificed on days 1, 3, and 5 postinfection. Brain samples were obtained at those periods of time. In addition, infected neuroblastoma cell cultures (multiplicity of infection [MOI]: 1) were treated with 0, 0.1, 0.5, and 1 mM of melatonin and analyzed at 2, 4, and 6 h. CD200 and apoptosis expressions were analyzed by immunohistochemistry and TUNEL assay, respectively. Nitrites and malondialdehyde were determined by appropriate biochemical methods.

resultsIncreased brain expression of apoptosis, nitrite, and malondialdehyde productions and CD200 of infected mice were found. Melatonin diminished those expressions. Similarly, high apoptosis expression and nitrite and malondialdehyde productions on infected neuroblastoma cultures were diminished by melatonin. Melatonin increased the survival rate (25%) in Venezuelan equine encephalitis virus-infected animals compared with untreated infected mice (0%).

conclusionsNeurological damage during brain Venezuelan equine encephalitis virus infection could be mediated by apoptosis and oxidative stress and CD200 molecule could be an important anti-inflammatory response. Melatonin could be beneficial reducing apoptosis and oxidative stress.

Indexed as

AnimalsAntigens, CDApoptosisBrainEncephalitis Virus, Venezuelan EquineEncephalomyelitis, Venezuelan EquineMaleMelatoninMiceMicrobial Sensitivity TestsOxidative StressSurvival RateAntigens, CDantigens, CD200MelatoninapoptosisbrainCD200neuroblastomasurvival rateVenezuela equine encephalitis virus

Identifiers

PMID27503577
PMCPMC5890526
OpenAlexW2508791494

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.