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La supresión del VIH-1 durante la infección aguda por tifus de matorrales
G Watt1, P Kantipong, M de Souza
1Retrovirology Department, USAMC, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand.
Lancet (London, England)
|September 12, 2000
Resumen
La infección aguda por tifus de matorrales redujo inesperadamente la carga viral del VIH-1 en los pacientes. Esto sugiere que el tifus arbóreo puede producir factores que suprimen el VIH-1, ofreciendo nuevas estrategias potenciales de tratamiento del SIDA.
Área de la Ciencia:
- Enfermedades infecciosas Enfermedades infecciosas.
- Inmunología Inmunología.
- Virología Virología.
Sus antecedentes:
- La carga viral del virus de la inmunodeficiencia humana tipo 1 (VIH-1) generalmente aumenta durante las infecciones secundarias.
- Este estudio investigó una disminución inusual en los niveles de VIH-1 durante el tifus de matorrales, causado por Orientia tsutsugamushi.
Objetivo del estudio:
- Para determinar el efecto del tifus de scrub agudo en la carga viral del VIH-1.
- Para explorar el potencial de los factores supresores del VIH-1 durante la infección por tifus de matorrales.
Principales métodos:
- Mediciones de la carga viral serial del VIH-1 en adultos tailandeses con tifus de matorrales y grupos de control con otras infecciones.
- Análisis de suero de pacientes con tifus y ratones inmunizados para la actividad supresora del VIH-1 in vitro.
Principales resultados:
- La carga viral del VIH-1 fue significativamente menor en pacientes con tifus en comparación con aquellos con otras infecciones.
- Se observó una reducción de tres veces o más en el ARN del VIH-1 en algunos pacientes con fiebre tifoidea; dos tenían niveles indetectables.
- Los aislamientos de VIH-1 de pacientes con tifus de matorrales eran predominantemente variantes que no inducían la sincitia, a diferencia de los de pacientes sin tifus.
Conclusiones:
- La infección por fiebre tifoidea puede inducir factores supresores del VIH-1.
- Una mayor investigación de estos factores podría conducir a nuevas estrategias para el tratamiento y la prevención del VIH / SIDA.
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