Table 4. Cytokine levels in the brachial lymph nodes of PTN-Tg and Wt mice under flight, ground control and vivarium conditions.

Cytokine	Wt Ground Control	PTN-Tg Ground Control	Wt Flight	PTN-Tg Flight	Wt VivariumControl	PTN-Tg Vivarium Control
IL-2 (ng/g)
11	–2	12.11	–	3.87	4.61	7.37
2	19.03	10.34	10.99	7.13	6.54	4.87
3	–	–	–	–	9.99	6.51
mean ± SEM		11.23±0.89		5.5±1.63	7.05±1.57	6.25±0.73
Active TGF-β1 (ng/g)
1	–	18.05	–	32.08	6.15	16.22
2	47.33	20.42	28.92	38.50	28.63	4.00
3	–	–	–	–	40.37	9.55
mean ± SEM		19.24±1.19		35.29±3.21	25.05±10.04	9.92±3.53
Total TGF-β1 (ng/g)
1	–	61.99	–	41.41	9.28	29.23
2	82.36	38.53	62.45	79.63	46.79	21.69
3	–	–	–	–	50.82	23.90
mean ± SEM		50.26±11.73		60.52±19.11	35.63±13.23	24.94±2.24

¹Cytokine levels of individual mice are shown.

²Deceased mice.