Table 2: Morphological data.

BasalT4PTU + T4Recovery

BW (g)29 ± 0.931 ± 0.530 ± 0.731 ± 0.9
HW (mg)134 ± 3186 ±  180 ±  152 ±  
HW/BW (mg/g)4.72 ± 0.105.91 ±  6.09 ±  4.88 ±  

BW: body weight, HW: heart weight. Basal; = 8, thyroxin (T4); = 9, propylthiouracil (PTU) + T4; = 11, recovery; = 10. significant change compared to basal, significant change compared to T4, and significant change compared to PTU + T4 (one-way ANOVA followed by Tukey-Kramer multiple comparison test).