Tumor necrosis factor concentrations in hemolytic uremic syndrome patients and children with bloody diarrhea in Argentina.
Pediatr Infect Dis J
; 14(7): 594-8, 1995 Jul.
Article
en En
| MEDLINE
| ID: mdl-7567288
Hemolytic uremic syndrome (HUS) is thought to be a vascular endothelial injury disease. The mechanism of injury is unknown although verocytotoxins (Shiga-like toxins (SLTs)) are known to be associated with it. Recent evidence suggests that in vitro treatment of some endothelial cells with tumor necrosis factor alpha (TNF-alpha) dramatically increases their susceptibility to SLTs. We studied 25 children with HUS, 63 children with SLT-positive bloody diarrhea, 62 children with bloody diarrhea not associated with SLTs and 39 children admitted for elective surgery, included as an age- and season-matched control group. The TNF-alpha concentrations were found to be significantly elevated in children with HUS (range, 1 to 95 pg/ml; geometric mean, 32.2 pg/ml) compared with the healthy controls (range, 0 to 53 pg/ml; mean, 12.5 pg/ml; P < 0.001). Because it is hypothesized that TNF-alpha elevation might precede development of HUS, we also studied children with blood diarrhea. The TNF-alpha serum concentrations were significantly higher during the first 10 days after onset of bloody diarrhea than after the first 10 days (P < 0.02). Such elevation could be associated with vascular endothelial glycolipid receptor up-regulation and increased susceptibility to the effects of SLTs.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Factor de Necrosis Tumoral alfa
/
Síndrome Hemolítico-Urémico
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
País/Región como asunto:
America do sul
/
Argentina
Idioma:
En
Revista:
Pediatr Infect Dis J
Asunto de la revista:
DOENCAS TRANSMISSIVEIS
/
PEDIATRIA
Año:
1995
Tipo del documento:
Article
País de afiliación:
Argentina
Pais de publicación:
Estados Unidos