Table 2. Cytokine concentrations (ng/g) in lung homogenates of naïve control and Pseudomonas infected mice treated with PBS or arginase inhibitor ABH.

		P. aeruginosa
	Control (n = 6)	PBS (n = 14)	ABH (n = 15)
IFN-γ	0.04±0.01 *	3.50±0.83	2.54±0.52
IL-1β	8.54±0.96	15.51±3.02	12.26±2.37
IL-6	9.97±0.51 *	52.27±5.67	65.09±12.1
MIP-2	0.15±0.01 *	59.46±7.30	44.29±3.67
KC	4.52±1.43 *	31.84±5.90	29.28±3.58
TNF-α	0.05±0.01 *	7.61±1.41	5.48±0.83

Concentrations were significantly different between groups (p<0.001, Kruskal-Wallis test). All cytokines with the exception of IL-1β were lower in controls compared to infected animals not different between PBS and ABH treated animals.