TABLE 2.

The effect of YQ23 on blood gases in hypobaric chamber rabbits.

Treatment time	Groups
	Plain control	Hypobaric chamber	YQ23 0.5 g/kg	YQ23 0.3 g/kg	Rhodiola rosea
PaO2 (mmHg)
1 h	115.3 ± 4.7	64.2 ± 5.6**	93.2 ± 4.2##	97.6 ± 3.7##	72.5 ± 4.5
4 h		62.9 ± 3.8**	97.5 ± 4.6##	96.2 ± 4.2##	70.0 ± 2.7#
12 h		66.3 ± 6.0**	93.3 ± 4.2##	96.8 ± 6.3##	72.6 ± 4.4
24 h		67.2 ± 4.9**	92.1 ± 5.4##	93.6 ± 3.8##	73.7 ± 3.9
SaO2(%)
1 h	97.7 ± 0.7	65.8 ± 3.1**	83.5 ± 5.2##	82.7 ± 5.2##	69.1 ± 6.2
4 h		66.4 ± 5.8**	85.4 ± 2.1##	83.8 ± 5.2##	66.2 ± 2.4
12 h		68.4 ± 7.3**	86.5 ± 4.5##	82.0 ± 4.6##	67.1 ± 3.9
24 h		66.8 ± 3.7**	84.6 ± 5.4##	79.8 ± 5.4##	67.6 ± 6.0
PCO2(mmHg)
1 h	33.7 ± 4.7	30.3 ± 4.0	30.3 ± 5.3	30.2 ± 4.0	30.7 ± 3.7
4 h		30.0 ± 3.6	31.1 ± 5.3	30.0 ± 4.3	29.3 ± 6.5
12 h		31.5 ± 3.9	30.4 ± 4.5	30.0 ± 4.3	29.8 ± 6.4
24 h		32.4 ± 3.6	30.7 ± 4.7	30.1 ± 4.8	29.2 ± 5.3
PH
1 h	7.37 ± 0.02	7.38 ± 0.03	7.38 ± 0.04	7.37 ± 0.03	7.36 ± 0.07
4 h		7.37 ± 0.04	7.37 ± 0.06	7.37 ± 0.03	7.36 ± 0.03
12 h		7.38 ± 0.04	7.38 ± 0.04	7.37 ± 0.03	7.39 ± 0.03
24 h		7.39 ± 0.07	7.38 ± 0.05	7.38 ± 0.05	7.38 ± 0.03
HCO3–(mmol/L)
1 h	15.5 ± 2.1	15.7 ± 1.1	14.4 ± 1.3	14.0 ± 3.0	14.4 ± 2.2
4 h		15.4 ± 1.7	15.1 ± 2.4	13.8 ± 3.9	14.8 ± 2.1
12 h		16.1 ± 2.1	14.0 ± 1.7	14.9 ± 2.9	15.3 ± 2.9
24 h		14.6 ± 0.9	13.2 ± 2.2	14.2 ± 1.9	14.1 ± 1.8
BE(mmol/L)
1 h	−2.4 ± 1.1	−2.1 ± 0.9	−2.0 ± 1.2	−2.1 ± 1.3	−2.3 ± 1.3
4 h		−2.1 ± 1.2	−2.1 ± 0.3	−2.6 ± 1.2	−2.7 ± 1.0
12 h		−2.3 ± 1.0	−2.1 ± 0.4	−2.4 ± 1.4	−1.9 ± 1.0
24 h		−1.7 ± 0.6	−2.3 ± 0.7	−2.4 ± 0.9	−2.1 ± 0.7
cLac (mmol/L)
1 h	9.3 ± 1.9	10.7 ± 1.1	10.1 ± 1.1	10.0 ± 0.6	9.7 ± 1.8
4 h		11.6 ± 2.1*	9.5 ± 1.0#	9.9 ± 2.1	9.8 ± 1.8
12 h		11.6 ± 1.6*	10.1 ± 1.5	10.5 ± 1.4	9.9 ± 1.2#
24 h		11.5 ± 1.3*	10.5 ± 1.9	10.2 ± 1.0	10.0 ± 1.8

The data are the mean ± SD of n experiments (n = 8). *P < 0.05; **p < 0.01 vs. the plain control; #p < 0.05, ##p < 0.01 vs. the hypobaric chamber group.