GPT and hyperuricemia: There was no significant difference between two groups in terms of sex ratio, the duration of disease, SBP, DBP, ALT, AST, Scr, BUN, SUA, electrolyte level (sodium, potassium, calcium), FT3, FT4, TPOAb, TRAb, TSH, thyroid weight and incidences of hyperuricemia (P>0.05).