Study the changing that happen in the concentration of thyroid hormones values in healthy persons of Wasit Province

The principal hormones of thyroid gland are thyroxine (T4) and triiodothyronine (T3). The current study was carried out to investigate the effect of age, gender of Thyroxine (T4), Triiodothyronine (T3) and Thyroid Stimulating Hormone (TSH) in normal healthy individuals were measure in healthy subject. Methods: Serum levels of T4, T3 and TSH in 534 normal healthy individuals belonging to different districts to Wasit Province, of deferent parts to the city center alkarama and al Zahra AL-Hai AL-Aziziya AL-Nomania Wasit, Iraq, were examined. Serum T4 , T3 and TSH were analyzed by enzyme linked immunosorbent assay (ELIZA) method). Results: Levels of T4, T3 and TSH ranged from61 to 051 ηmol/L, 0.6 to 3.1 ηmol/L and 0.3–4.8 μIU/L respectively. The levels of T4 hormones show significant change from the reference values were the other hormones T3 and TSH show slightly changes but not significant that are used in clinical laboratories depend by WHO Conclusion:, It is concluded that the age, gender, all have an appreciable effect on the levels T4, T3 and TSH hormones.