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. 2008 Aug 22;12(4):R108. doi: 10.1186/cc6995

Figure 4.

Figure 4

Myeloperoxidase (MPO) activity and concentration of nitric oxide (NO) metabolites. (a) The optical densities (ODs) of the MPO activities in the bronchoalveolar lavage fluid (BALF) were different among the groups (P = 0.001 by the Kruskal-Wallis test) and higher in the ventilator-induced lung injury (VILI) group than the other three groups (*P < 0.05). The PJ34+VILI group showed higher OD than the sham and lung-protective ventilation (LPV) groups (**P < 0.05). (b) The concentration of the NO metabolites nitrate and nitrite (NOX) in BALF was higher in the VILI group as compared with the other three groups (*P < 0.05). The level in the PJ34+VILI group was higher than those in the sham and LPV groups (**P < 0.05).