Table 1.

Blood gas analysis during exposure to room air.

Group	PaCO2(mmHg)	PaO2(mmHg)	pH
LZR	37.9 ± 1.8	102.5 ± 5.9	7.32 ± 0.02
LHZR	51.6 ± 1.0**	93.8 ± 2.7	7.24 ± 0.01*
OZR	50.9 ± 0.6**	87.6 ± 2.8*	7.22 ± 0.01*

LZR, lean Zucker rats; LHZR, HFD-fed LZR; OZR, obese Zucker rats; n = 12 for each group;

^*P < 0.05,

^**P < 0.01 by one-way ANOVA with Tukey's post-hoc test, vs. LZRs.