Supporting information for Kline et al. (January 15, 2002) Proc. Natl. Acad. Sci. USA, 10.1073/pnas.022634199.

Table 1. Respiratory responses to 100, 21, and 12% O2 in Hif1a+/+ and Hif1a+/– mice


100% O2

21% O2

12% O2

Hif1a+/+

RR

156 ± 2

154 ± 15

192 ± 20

V

T

2.13 ± 0.15

2.18 ± 0.18

2.54 ± 0.25

V

E

0.33 ± 0.03

0.33 ± 0.03

0.48 ± 0.04

V

O2

0.17 ± 0.02

0.08 ± 0.01

0.03 ± 0.01

V

CO2

0.03 ± 0.00

0.02 ± 0.00

0.02 ± 0.00

Hif1a+/–

RR

155 ± 8

147 ± 3

190 ± 7

V

T

2.02 ± 0.15

2.03 ± 0.18

2.48 ± 0.20

V

E

0.31 ± 0.03

0.30 ± 0.02

0.47 ± 0.05

V

O2

0.22 ± 0.01

0.08 ± 0.01

0.03 ± 0.00

V

CO2

0.02 ± 0.00

0.02 ± 0.00

0.02 ± 0.00

Data expressed as mean ± SE. Hif1a+/+, n = 8; Hif1a+/–, n = 8. RR, breaths per minute; VT, ml/body weight (BW); VE, ml/min/BW; VO2 and VCO2, ml/min/BW.