Table 1.

Action potential width at half-maximum height for control mice and those killed 1 h after exposure to 790-kPa air pressure for 2 h

	Control	Decompression
No manipulations	1.00 ± 0.04 (20)	1.45 ± 0.15 (9)*
+ PEG	0.92 ± 0.03 (3)	1.00 ± 0.03 (9)
Thrombocytopenia	1.05 ± 0.09 (3)	1.13 ± 0.05 (3)
+ 1400 W	1.11 ± 0.02 (3)	1.18 ± 0.04 (3)
MPO-KO	1.14 ± 0.05 (6)	1.20 ± 0.07 (3)
iNOS-KO	1.02 ± 0.06 (3)	1.18 ± 0.04 (3)

Values were normalized to the mean wild-type mouse control action potential width (3.97 ± 0.14 ms) and are displayed as means ± SE (n = individual mice studied).Where shown wild-type mice were first rendered thrombocytopenic, injected with 25 mg/kg 1400 W immediately before pressure exposure or injected with PEG telomere B (PEG) after decompression and killed 1 h later. Knock-out (KO) mice used in some studies lacked myeloperoxidase (MPO) or iNOS.

^*P < 0.05.