MEDLINE Journals

    Serum concentrations of adiponectin and resistin in hyperthyroid Graves' disease patients.


    Sieminska L, Niedziolka D, Pillich A, et al. 


    J Endocrinol Invest 2008 Sep; 31(9) :745-9.


    This study was undertaken to determine whether serum adiponectin and resistin levels are influenced by hyperthyroidism and autoimmune factors and to find out whether their levels are dependent on the presence of ophthalmopathy. We measured serum concentrations of adiponectin and resistin in 76 patients (63 women, 13 men) with Graves' disease (GD) and compared them with levels of the control group which consisted of 30 healthy subjects. Patients were separated into two groups according to the presence or the absence of thyroid-associated ophthalmopathy (TAO). TAO (-) group consisted of 26 subjects without eye signs of GD and TAO (+) group included 50 subjects with ophthalmopathy. The latter group was further divided into 2 subgroups: with active TAO [26 patients, clinical activity score (CAS)> or =4] and with inactive TAO (24 patients, CAS<4). Groups did not differ in age, sex, body mass index (kg/m2) and smoking habits. Compared with euthyroid subjects, hyperthyroid GD patients had elevated mean serum adiponectin concentrations (19.96+/-4.97 microg/ml vs 15.01+/-3.99 microg/ml, p<0.001). However we did not observe any disparity between the TAO (-) and TAO (+) groups (20.60+/-5.06 microg/ml vs 19.63+/-4.94 microg/ml, p=ns). Comparing patients with a CAS> or =4 and patients with a CAS<4, we found similar mean serum concentrations of adiponectin (20.04+/-5.01 microg/ml vs 18.74+/-4.83 microg/ml, p=ns). Serum levels of resistin did not differ between the hyperthyroid patients and control subjects (13.11+/-4.26 ng/ml vs 12.82+/-4.75 ng/ml, p=ns). Serum resistin levels did not differ between TAO (+) and TAO (-) groups nor in patients with active and inactive TAO. Serum adiponectin correlated significantly with free T4 (FT4), free T3 (FT3), and TSH-R antibodies (TRAb) in GD patients (r=0.40, 0.41, and 0.37, respectively; p<0.001 for each). Serum resistin levels were not correlated with thyroid hormones and thyroid antibodies. The variables that in simple linear regression analyses were found to be correlated with serum adiponectin were then used in multiple regression analysis. In a model including adiponectin as dependent variable and FT4, FT3 and TRAb levels as independent variables, FT3 and TRAb remained as parameters independently related to adiponectin level (R2=0.35, p<0.001).
    Elevated serum adiponectin levels in GD patients are related to the degree of hyperthyroidism and autoimmune process. The presence and activity of ophthalmopathy is not a modifier of serum adiponectin and resistin.


    Graves Ophthalmopathy
    Middle Aged
    Regression Analysis



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