. 2006 May 11;575(Pt 1):263–275. doi: 10.1113/jphysiol.2006.108753

Table 2.

Arterial blood gases and pH_a recorded in N rats breathing air and in CH rats breathing 12% O₂ and in both groups in the 5th minute of breathing 8% O₂, before and after l-NAME (10 mg kg⁻¹)

	P_aO₂		P_aCO₂		pH_a
	Before	After	Before	After	Before	After

N	21% O₂	88.63 ± 3.19	85.63 ± 3.00	44.32 ± 1.87	40.84 ± 3.03	7.35 ± 0.01	7.34 ± 0.02
	8% O₂	33.54 ± 1.14^†	31.71 ± 0.83^†	31.77 ± 1.61^†	31.79 ± 1.63^†	7.42 ± 0.02^†	7.41 ± 0.02^†
1CH	12% O₂	41.28 ± 1.08^*	47.78 ± 1.08^§	32.88 ± 1.42^*	31.77 ± 1.20	7.44 ± 0.01^*	7.37 ± 0.01^§
8% O₂	32.28 ± 0.79^†	32.80 ± 0.57^†	27.46 ± 1.62^†^‡	27.77 ± 1.20^†	7.46 ± 0.01^†^‡	7.45 ± 0.01^†
3CH	12% O₂	40.85 ± 2.74^*	46.00 ± 2.00^§	30.64 ± 2.74^*	32.03 ± 1.70	7.44 ± 0.03^*	7.36 ± 0.02^§
8% O₂	30.33 ± 4.10^†	31.33 ± 2.10^†	25.98 ± 1.51^†^‡	27.85 ± 1.51^†	7.48 ± 0.01^†^‡	7.44 ± 0.01^†
7CH	12% O₂	40.57 ± 1.39^*	47.14 ± 1.83^§	29.87 ± 1.70^*	29.35 ± 1.80	7.45 ± 0.01^*	7.37 ± 0.01^§
8% O₂	31.46 ± 0.54^†	33.14 ± 0.77^†	26.78 ± 2.47^†^‡	25.42 ± 1.99^†	7.47 ± 0.02^†^‡	7.46 ± 0.01^†

All values are shown as mean ±s.e.m. Blood gas values are in mmHg.

P < 0.05 baseline values recorded in N rats breathing 21% O₂versus CH rats breathing 12% O₂.

^†

P < 0.05: value recorded in N rats breathing 21% O₂versus 8% O₂ and between value recorded in CH rats breathing 12% O₂versus 8% O₂ before or after l-NAME.

^‡

P < 0.05: value recorded in N rats breathing 8% O₂versus CH rats breathing 8% O₂.

^§

P < 0.05: baseline value recorded in N rats breathing 21% O₂ before versus after l-NAME, or baseline value recorded in CH rats breathing 12% O₂ before versus after l-NAME.