1. Serum thyroid stimulating hormone (TSH), free triiodothyronine (FT3) and free tetraiodothyronine (FT4) levels were detected after operation or 2, 3 and 4 weeks after drug withdrawl.

2. The levels of serum free Triiodothyronine (FT3) and free Thyroxine (FT4) with thyroid-stimulating hormone (TSH) were measured by CLIA and RIA methods respectively.

3. A positive correlation was found among the triiodothyronine, thyroxin and thegastrin from the study.

4. Triiodothyronine (T3) and insulin can promote the cell's metabolism of sugar, fat and protein, and accelerate the cell's growth.

5. Levels of thyroid hormones, such as thyroxine, may become depressed, while reverse triiodothyronine levels may increase because of impaired conversion of triiodothyronine to thyroxine.

6. The effect of IGFBP-3 on the growth hormone promoter activity stimulated by triiodothyronine (T3) was determined by dual-luciferase reporter assay.

7. On the other hand, there was a tendency for mean serum triiodothyronine (T3) level to increase with age.