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Pediatr Res. 2013 Oct;74(4):420-6. doi: 10.1038/pr.2013.114. Epub 2013 Jul 3.

Circulating leptin and adiponectin and their relation to glucose metabolism in children with Crohn's disease and ulcerative colitis.

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1] First Department of Pediatrics, University of Athens, Athens, Greece [2] Research Division of Endocrinology and Metabolic Diseases, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.



Crohn's disease (CD) and ulcerative colitis (UC) result in metabolic consequences. We assessed circulating leptin and adiponectin concentrations and examined their relations to glucose metabolism in children with CD and UC.


Circulating morning fasting concentrations of leptin, adiponectin, glucose, and insulin were measured in 32 children with CD and 18 children with UC. Insulin resistance (IR) and β-cell function were evaluated by the updated homeostatic model assessments (HOMA2-IR and HOMA2-B).


Leptin was positively related to BMI z-scores overall and in the CD and the UC subgroups (P < 0.001). A negative correlation between leptin and disease activity was observed in the entire population (P = 0.034) and in the UC (P = 0.03) group. None of the assessed parameters was related to adiponectin. Fourteen percent of the participants were insulin resistant (15.6% in the CD group and 11.1% in the UC group), significantly more than expected (P < 0.001). Leptin was associated with HOMA2-IR (overall: r = 0.29, P = 0.045). Pathway analysis suggested that, overall, disease activity and BMI significantly affect leptin, which in turn is the only correlate of HOMA2-IR.


Disease activity was significantly and inversely related to leptin in children with inflammatory bowel disease (IBD). A significant proportion of the patients had increased IR, which is positively related to circulating leptin.

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