Primary infection of BALB/c mice with a dengue virus type 4 strain leads to kidney injury



Título del documento: Primary infection of BALB/c mice with a dengue virus type 4 strain leads to kidney injury
Revue: Memorias do Instituto Oswaldo Cruz
Base de datos: PERIÓDICA
Número de sistema: 000459466
ISSN: 0074-0276
Autores: 1
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Instituciones: 1Fundacao Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro. Brasil
2Universidade Federal do Rio de Janeiro, Instituto de Biofisica Carlos Chagas Filho, Rio de Janeiro. Brasil
Año:
Volumen: 118
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés BACKGROUND Dengue is a disease caused by dengue virus (DENV-1 through -4). Among the four serotypes, DENV-4 remains the least studied. Acute kidney injury is a potential complication of dengue generally associated with severe dengue infection. OBJECTIVES The goal of this study was to investigate the alterations caused by experimental dengue infection in the kidney of adult BALB/c mice. METHODS In this study, BALB/c mice were infected through the intravenous route with a DENV-4 strain, isolated from a human patient. The kidneys of the mice were procured and subject to histopathological and ultrastructural analysis. FINDINGS The presence of the viral antigen was confirmed through immunohistochemistry. Analysis of tissue sections revealed the presence of inflammatory cell infiltrate throughout the parenchyma. Glomerular enlargement was a common find. Necrosis of tubular cells and haemorrhage were also observed. Analysis of the kidney on a transmission electron microscope allowed a closer look into the necrotic tubular cells, which presented nuclei with condensed chromatin, and loss of cytoplasm. MAIN CONCLUSIONS Even though the kidney is probably not a primary target of dengue infection in mice, the inoculation of the virus in the blood appears to damage the renal tissue through local inflammation
Disciplinas: Biología
Palabras clave: Microbiología,
Virus,
Infección experimental,
Virus del dengue,
Ratones,
Daño renal,
Histopatología
Keyword: Microbiology,
Virus,
Experimental infection,
Dengue virus,
Mice,
Renal damage,
Histopathology
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