Evidence map›Paper›PMID 42369187›Full record

ArticleFrontiers in cellular and infection microbiology2026

Río Negro virus (Venezuelan equine encephalitis virus complex) shows pathogenic potential in a permissive murine model.

Luciana A Fassola, Yamila Gazzoni, Glenda D Martin Molinero, Soledad De Olmos, María F Triquell, Alicia Degano, Marianela C Serradell, María E Rivarola, Sergio R Oms, Marta S Contigiani and 2 more

Abstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

12 authors.

Luciana A FassolaCentro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE), Consejo Nacional de Investigaciones Científicas y Técnicas/Universidad Católica de Córdoba, Córdoba, Argentina.
Yamila GazzoniDepartamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Glenda D Martin MolineroDepartamento de Química Biológica "Ranwel Caputto", Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Soledad De OlmosInstituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
María F TriquellDepartamento de Biología Celular, Histología y Embriología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Alicia DeganoDepartamento de Química Biológica "Ranwel Caputto", Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Marianela C SerradellCentro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE), Consejo Nacional de Investigaciones Científicas y Técnicas/Universidad Católica de Córdoba, Córdoba, Argentina.
María E RivarolaDepartamento de Fisiología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.
Sergio R OmsCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina.
Marta S ContigianiInstituto de Virología "Dr. JM Vanella", Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Adriana GruppiDepartamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Guillermo Albrieu-LlinásCentro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE), Consejo Nacional de Investigaciones Científicas y Técnicas/Universidad Católica de Córdoba, Córdoba, Argentina.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Río Negro virus (RNV), an enzootic member of the Venezuelan equine encephalitis virus (VEEV) complex, has historically been regarded as avirulent based on studies in adult immunocompetent animals. However, its pathogenic potential under biologically relevant conditions has not been systematically examined. Here, we investigated RNV infection in infant C57BL/6 mice as a permissive developmental model. Infection resulted in a transient viremic phase followed by systemic dissemination, disruption of splenic immune architecture, and pronounced neuroinflammatory and neurodegenerative alterations in the central nervous system. Viral replication in brain tissue coincided with astrocyte activation and elevated pro-inflammatory cytokine levels, indicating the establishment of immunopathological processes. These findings demonstrate that RNV retains the capacity to induce systemic and neuroinvasive disease under conditions of developmental immune immaturity. Our study provides the first comprehensive

Indexed as

Encephalitis Virus, Venezuelan EquineEncephalomyelitis, Venezuelan EquineAnimalsAstrocytesBrainCytokinesDisease Models, AnimalMiceMice, Inbred C57BLSpleenViremiaVirus ReplicationCytokinesAlphavirusneuroinvasionpathogenesisRío Negro virusVenezuelan equine encephalitis virus complex

Identifiers

PMID42369187
PMCPMC13293810

What OpenQuestion holds

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LicenceCC BY
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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.