Table 1.

Volume (μL) and volume density (% in parenthesis) of the different vascular components at different ages in C57BL/6J mice (mean ± SEM).

Age	Control	PTU	T3
5 days
Capillary	0.02 ± 0.003a (1.2 ± 0.2a)	0.03 ± 0.006b (1.5 ± 0.2a)	0.01 ± 0.002a (0.8 ± 0.2a)
Lymphatic vessel	0.006 ± 0.001a (0.5 ± 0.06a)	0.005 ± 0.001a (0.3 ± 0.03a)	0.004 ± 0a (0.3 ± 0.1b)
Total vessels	0.02 ± 0.003a (1.8 ± 0.2a)	0.03 ± 0.01a (1.6 ± 0.4a)	0.02 ± 0.003a (1.3 ± 0.2a)
10 days
Capillary	0.04 ± 0.01a (1.2 ± 0.3a)	0.17 ± 0.04b (3.2 ± 0.4b)	0.05 ± 0.007a (1.6 ± 0.2a)
Lymphatic vessel	0.02 ± 0.004a (0.6 ± 0.1a)	0.05 ± 0.008b (1 ± 0.1a)	0.02 ± 0.003a (0.5 ± 0.1a)
Total vessels	0.07 ± 0.02a (2.2 ± 0.5a)	0.25 ± 0.04b (4.8 ± 0.7b)	0.07 ± 0.007a (2.3 ± 0.2a)
15 days
Capillary	0.1 ± 0.02a (1.6 ± 0.3a)	0.2 ± 0.03b (2.6 ± 0.3b)	0.1 ± 0.01a (2.1 ± 0.1ab)
Lymphatic vessel	0.05 ± 0.01a (0.8 ± 0.2a)	0.1 ± 0.02b (1.4 ± 0.2b)	0.01 ± 0.01a (0.2 ± 0.1a)
Total vessels	0.2 ± 0.05a (2.5 ± 0.6ab)	0.3 ± 0.06b (4.2 ± 0.5a)	0.1 ± 0.01a (2.7 ± 0.1b)
20 days
Capillary	0.2 ± 0.04a (1.5 ± 0.3a)	0.3 ± 0.04a (2.6 ± 0.3b)	0.07 ± 0.02b (1.5 ± 0.4ab)
Lymphatic vessel	0.03 ± 0.02a (0.2 ± 0.1a)	0.1 ± 0.02a (1 ± 0.2b)	0.01 ± 0.005b (0.3 ± 0.1a)
Total vessels	0.3 ± 0.05a (2 ± 0.3a)	0.4 ± 0.05a (3.7 ± 0.3b)	0.1 ± 0.02b (1.9 ± 0.4a)
28 days
Capillary	0.4 ± 0.02a (1.3 ± 0.06a)	0.3 ± 0.06a (1.7 ± 0.3a)	0.2 ± 0.03b (1.5 ± 0.2a)
Lymphatic vessel	0.1 ± 0.01a (0.3 ± 0.05a)	0.15 ± 0.04a (0.8 ± 0.2a)	0.07 ± 0.01a (0.7 ± 0.08a)
Total vessels	0.4 ± 0.1a (1.8 ± 0.1b)	0.5 ± 0.1a (2.8 ± 0.4a)	0.3 ± 0.04a (2.5 ± 0.2ab)
100 days
Capillary	1.1 ± 0.2a (1.2 ± 0.2a)	1.5 ± 0.2a (1.4 ± 0.2a)	0.4 ± 0.1b (1 ± 0.3a)
Lymphatic vessel	0.3 ± 0.1a (0.3 ± 0.1a)	0.4 ± 0.1a (0.4 ± 0.07a)	0.08 ± 0.02a (0.2 ± 0.07a)
Total vessels	1.5 ± 0.3a (1.6 ± 0.3ab)	2.6 ± 0.2b (2.3 ± 0.2a)	0.5 ± 0.1c (1.2 ± 0.3b)

Different letters in same line indicate statistical difference (P < 0.05).

PTU, propylthiouracil; T3, triidothryronine.