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The changes of serum malondialdehyde, myeloperoxidase, total antioxidant capacity, superoxide dismutase activity, and glutathione peroxidase were observed in patients with Graves′ disease. The myeloperoxidase level increased in patients with Graves′ disease. The balance between oxidation and antioxidative defense was disrupted in patients with newly-onset Graves′ disease. Oxidative stress seems to be related to hyperthyroidism.
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Objective To evaluate the effect of rosiglitazone on insulin resistance and hyperandrogenism in polycystic ovary syndrome (PCOS) Methods Rosiglitazone was given 4 mg daily to 30 patients with PCOS for 12 weeks Before and after treatment, body mass index(BMI), plasma glucose, insulin, levels insulin resistance index (HOMA IR), blood lipid spectrum, leptin, neuropeptide Y, and sex hormone concentrations and ovulation rate were determined and compared Results After 12 weeks of treatment, basal insulin level decreased from (18?8) to (12?7) mIU/L ( P
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Objective To explore the association of the Arg64 polymorphism β-3-adrenergic receptor(β3-AR) gene with polycystic ovary syndrome(PCOS)and its characterization with obesity,insulin resistance(IR)，blood pressure (BP), blood lipid spectrum. Methods The polymorphism of the β-3-AR gene was determined in 163 patients with PCOS and 100 controls. Body mass index(BMI), waist to hip circumference ratio(WHR), BP were examined. Blood glucose,blood lipid spectrum,insulin were also measured. Insulin resistance index was calculated. Results The frequency of Arg64 allele in PCOS women was significantly higher than that of controls(0.33 vs 0.13 respectively, P<0.05). Fasting insulin, insulin resistance index, WHR in Arg64 group were significantly higher than those of Trp64 group. The frequency of Arg64 allele was positively correlated with FINS, insulin resistance index, WHR. Conclusion The Arg64 mutation in the β-3-adrenergic receptor(β-3-AR) gene might contribute to development of PCOS and IR.