TABLE 7.

Singlet oxygen sensor green fluorescence in neutrophil suspensions after gas exposures

Cells were incubated with singlet oxygen sensor green for 30 min and then exposed to air plus the indicated gas for 5 min. Data show fluorescence (arbitrary units) after gas exposure. Data are mean ± S.E., and sample sizes are as shown. 690 kPa N₂ and argon values are significantly different from 690 kPa of helium, SF₆, and N₂O, and all N₂ values are significantly different from each other (ANOVA). n is shown in parentheses.

Air	Air plus
	186 kPa of N2	345 kPa of N2	690 kPa of N2	690 kPa of argon	690 kPa of helium	690 kPa of SF6	690 kPa of N2O
0 ± 0 (26)	441 ± 5 (3)a	4,101 ± 260 (3)a	6,237 ± 243 (11)a	5,253 ± 259 (6)a	1,309 ± 152 (6)a	27 ± 84 (6)	212 ± 97 (6)a

^a p < 0.05 versus air (ANOVA).