Circulating inflammatory cytokine levels in hemolytic uremic syndrome.
Pediatr Nephrol
; 13(9): 840-5, 1999 Nov.
Article
en En
| MEDLINE
| ID: mdl-10603133
Experimental data suggest that the host's inflammatory response is involved in the pathophysiology of verotoxin-producing Escherichia coli (VTEC)-associated hemolytic uremic syndrome (HUS). We compared the circulating levels of pro- [interleukin (IL)-6, IL-8] and anti-inflammatory [IL-10 and IL-1 receptor antagonist (Ra)] mediators on enrollment among children with HUS due to E. coli O157:H7, according to the severity of renal dysfunction. The latter was evaluated by the occurrence of oligoanuria, the requirement for dialysis, and a glomerular filtration rate (GFR) =80 ml/min per 1. 73 m(2) measured 1 year later. Increased levels of IL-6 (P<0.0001), IL-10 (P<0.0001), and IL-1Ra (P<0.07) were found among patients with HUS compared with normal controls. Children with severe renal dysfunction also had tenfold increased levels of IL-6 and higher concentrations of IL-10 and IL-1Ra. Both the IL-6/IL-10 (4.9+/-8.3 vs. 0.5+/-0.4, P=0.01) and the IL-6/IL-1Ra ratios (0.10+/-0.20 vs. 0. 01+/-0.01, P=0.04) were significantly increased. GFR correlated well with IL-6 levels, IL-6/IL-10 and IL-6/IL-1Ra ratios. Our data demonstrate that the inflammatory response of the host is associated with the severity of renal dysfunction during classic HUS. An imbalance between the pro- and the anti-inflammatory responses may be involved in the pathophysiology of VTEC-associated HUS.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Citocinas
/
Escherichia coli
/
Síndrome Hemolítico-Urémico
Límite:
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Revista:
Pediatr Nephrol
Asunto de la revista:
NEFROLOGIA
/
PEDIATRIA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Canadá
Pais de publicación:
Alemania