Table 2.

Rat body weights, lung perfusion pressures, lung weights, lung wet-to-dry ratio, and angiotensin-converting enzyme activity

	Body Weight, g	Pa, Torr	Wet Weight, g	Wet-to-Dry Ratio	PS, ml/min
Normoxic	316±5	9.8±0.2	1.28±0.03	5.6±0.1	23.1±0.8
Hyperoxic	311±3	9.4±0.3	1.34±0.04	5.8±0.1	24.5±0.7

Values are mean ± SE. For normoxic lungs, n = 43, 34, 43, 30, and 28 for body weight, Pa, lung wet weight, wet-to-dry ratio, and PS, respectively, where 43 is the total number of normoxic lungs studied. For hyperoxic lungs, n = 40, 34, 39, 31, and 30, respectively, where 40 is the total number of hyperoxic lung studied. Pa, lung perfusion pressure with perfusate flow set at 30 ml/min; PS (permeability surface area product), measure of plasmatic clearance of N-[3-(2-furyl) acryloyl]-Phe-Gly-Gly and an index of perfused capillary surface area.