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Relationship between adiponectin levels, acylated ghrelin levels, and short-term body mass index changes in children with diabetes mellitus type 1 at diagnosis and after insulin therapy

Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, E-28009 Madrid, Spain

(Correspondence should be addressed to J Argente; Email: argentefen{at}terra.es)

Objective: To determine the effect of the initial metabolic imbalance and its restoration after insulin therapy on adiponectin and acylated ghrelin levels in children with type 1 diabetes mellitus (T1DM).

Study design: Twenty prepubertal children with newly diagnosed T1DM were prospectively studied at diagnosis and after 1 and 4 months of therapy. Body mass index (BMI) and serum levels of adiponectin, resistin, total and acylated ghrelin, leptin, tumor necrosis factor (TNF-), and interleukin-6 (IL-6) were determined. The control group comprised 40 healthy prepubertal children.

Results: BMI was decreased at diagnosis, normalized at 1 month, and remained so thereafter. Adiponectin levels at diagnosis were similar to controls, increasing significantly after 1 month and normalizing at 4 months. Acylated ghrelin levels were lower at diagnosis, with a significant increase at 1 month and normalizing at 4 months. Resistin levels were normal at all time points. Leptin levels were decreased, while TNF- and IL-6 were increased at diagnosis and normalized at 1 month.

Conclusions: These findings suggest that BMI is not the main predictor of acylated ghrelin or adiponectin levels in newly diagnosed T1DM subjects and that these peptides may play an important role in the metabolic adaptation in this disease.

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