Table 1. Effect of hypothyroidism and T2 administration to hypothyroid rats on rat resting energy expenditure and on the contribution of different tissues to rat total body weight.

	Eu	Hypo	H+T2 1w
Total T3 serum level (nM)	0.88 ± 0.06	0.20 ± 0.04*	0.23 ± 0.04*
Total T4 serum level (nM)	55.6 ± 3.0	7.1 ± 0.9*	7.3 ± 0.9*
Energy expenditure at rest Kcal produced/day·Kg0.75	73.2± 4.2	52.0 ± 3.5 *	61.2±2.2*,#
Food intake (gr)	444±19	317±7*	345±15*
I-BAT/b.w. ×100	0.150 ± 0.008	0.131 ± 0.004*	0.171±0.009#
WAT(visceral depots)/b.w. × 100	4.6 ± 0.3	4.0 ± 0.2*	3.6 ± 0.3*
Liver /b.w. × 100	2.97 ± 0.12	2.72 ±0.01	2.79 ± 0.01
Gastrocnemius/b.w. × 100	1.12 ± 0.06	1.15 ±0.03	1.10 ± 0.05
Heart weight/b.w. × 100	0.27 ± 0.02	0.30 ±0.01	0.29 ± 0.01

Value are mean ± ES of 6 different rats.

*P<0,05 vs Euthyroid

#P<0,05 vs Hypothyroid rats.