TABLE 1.

HISTOLOGIC EVALUATION OF LUNG INJURY AT 96 H OF OXYGEN EXPOSURE

	Wild-Type	Transgenic
Edema	4.4 ± 0.2	2.1 ± 0.8
PMN infiltration	4.5 ± 0.1	2.1 ± 0.4
Hemorrhage	4.6 ± 0.2	0.6 ± 0.7
Cellular necrosis	4.4 ± 0.3	0.7 ± 0.4

Indices were graded from 1 (slight) to 5 (severe) in a “blinded” evaluation by three observers. Values are mean ± SE for n = 3 lungs in each group.