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Bartonella quintana en los eritrocitos humanos
Jean-Marc Rolain1, Cédric Foucault, Régis Guieu
1Unité des Rickettsies CNRS UPRES-A 6020, Faculté de Médecine, Université de la Méditerranée, 13385 Marseille Cedex 05, France.
Lancet (London, England)
|July 23, 2002
Resumen
Las bacterias Bartonella quintana se encontraron dentro de los glóbulos rojos de personas sin hogar con infecciones asintomáticas. Esta presencia intraeritrocítica puede explicar cómo los piojos del cuerpo transmiten las bacterias de manera eficiente.
Área de la Ciencia:
- Microbiología Microbiología.
- Enfermedades infecciosas Enfermedades infecciosas.
- Parasitología Parasitología.
Sus antecedentes:
- Bartonella quintana causa infecciones crónicas asintomáticas, transmitidas principalmente por los piojos del cuerpo.
- La ubicación del organismo dentro del huésped durante la infección asintomática sigue sin estar clara.
- Las poblaciones sin hogar son particularmente vulnerables a las enfermedades transmitidas por piojos corporales.
Objetivo del estudio:
- Para investigar la presencia intraeritrocítica de Bartonella quintana en individuos asintomáticos. para investigar la presencia intraeritrocítica de Bartonella quintana en individuos asintomáticos. para investigar la presencia intraeritrocítica de Bartonella quintana en individuos asintomáticos.
- Para determinar si la colonización de glóbulos rojos es una característica de la infección por Bartonella quintana.
- Explorar las implicaciones de las bacterias intraeritrocíticas para la transmisión de enfermedades.
Principales métodos:
- Utilizó un anticuerpo monoclonal específico para la detección de Bartonella quintana.
- Empleó microscopía confocal láser para visualizar las bacterias dentro de los eritrocitos.
- Carga bacteriana cuantificada en muestras de sangre de una población sin hogar en Marsella, Francia.
Principales resultados:
- Se demostró la presencia intraeritrocítica de Bartonella quintana en personas con bacteriemia asintomática.
- Se identificó una carga bacteriana de al menos 5 x 10 (((4) unidades formadoras de colonias/mL como predictivo de la infección intracelular.
- No se encontró evidencia de hemólisis asociada con la infección intraerirocitaria por Bartonella quintana.
Conclusiones:
- La colonización de glóbulos rojos por Bartonella quintana ocurre en infecciones asintomáticas.
- La presencia intraeritrocítica probablemente facilita la transmisión eficiente por los piojos del cuerpo.
- Se necesita más investigación para comprender la patogénesis y las implicaciones a largo plazo de esta infección.
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