[Association of leptin and total immunoglobulin E in obese patients]

We measured by the immunoenzyme assay serum levels of total IgE and leptin in 17 men and 95 women with non-alcoholic fatty liver diseases (NAFLD) and in 57 men and 25 women with alcoholic liver disease (ALD) in comparison with 454 control men and 74 women without hepatic pathology. It was shown that the total serum IgE level in patients with ALD (229.5 +/- 31.0 IU/l) is on the average twice that in NAFLD and control patients (89.7 +/- 15.0 and 96.2 +/- 16.0 IU/l respectively). The IgE level in patients with NAFLD is related to BMI and waist circumference (WC). Leptin levels in patients with NAFLD andALD are higher than in control and correlate with obesity signs in all three groups. They correlate with the IgE level and reach the maximum value at a concentration of total IgE over 100 IU/l in men with NAFLD and WC >94 and in women with BMI = >30.0 kg/m2 and WC >80 cm. Positive correlation between IgE, leptin level and obesity signs in men and women with NAFLD suggests that leptin may be a link between obesity, hepatosteatosis, and atopic diseases.