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. 2005 Dec;147(6):835-8.
doi: 10.1016/j.jpeds.2005.07.030.

Decreased serum adiponectin: an early event in pediatric nonalcoholic fatty liver disease

Affiliations

Decreased serum adiponectin: an early event in pediatric nonalcoholic fatty liver disease

Miriam Vos Louthan et al. J Pediatr. 2005 Dec.

Abstract

Objective: To evaluate the relative concentrations of cytokines in pediatric nonalcoholic fatty liver disease (NAFLD).

Study design: Thirty children were evaluated at a fasting morning visit to a pediatric research unit.

Results: Compared with normal-weight children (n = 12) and children who were overweight (n = 11), children who had presumed NAFLD (elevated Alanine aminotransferase [ALT] with negative work-up) (n = 7) had significantly lower mean serum adiponectin levels (P = .004). Adiponectin negatively correlated with body mass index (r = -0.60, P = .001), insulin (r = -0.74, P < .001), glucose (r = -0.52, P = .004), and ALT (r = -0.53, P = .003). There was no difference between normal-weight, obese, and presumed NAFLD subjects in mean serum tumor necrosis factor alpha and interleukin-6 and -8 concentrations nor in tumor necrosis factor alpha and interleukin-8 and -10 levels in an ex vivo lipopolysaccharide-stimulated system.

Conclusions: Serum adiponectin is reduced in children with elevated ALT, similar to adults. However, children with presumed NAFLD do not have elevated pro-inflammatory cytokine levels. This suggests that depressed adiponectin plays a more proximal role than elevated levels of circulating pro-inflammatory cytokines in the development of NAFLD in children.

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