FIG. 2.

Serum (A) triiodothyronine (T3) and (B) thyrotropin (TSH) levels in hypothyroid rats given 24 μg/kg body weight LT3 (body weight: 300 ± 9.6 g) or equimolar amounts of PZL (body weight: 309 ± 9.3 g) through gavage. (C) Dose–response curve of T3 at three hours in the serum of hypothyroid rats given 24 μg/kg and 48 μg/kg LT3 or PZL. Blood samples were obtained through caudal vein sampling and processed for hormone quantification. Values are the mean ± standard deviation (SD) of four independent samples. An unpaired Student's t-test was used for all comparisons. **p < 0.01; ***p < 0.001. Color images available online at www.liebertpub.com/thy