Table 1 The E_max and pEC₅₀ of the concentration-contractile curves of the trachea segments isolated from the sidestream smoke-exposed mice induced by potassium chloride, carbachol and endothelin-1

Fresh air

3.56 ± 0.41^†

7.01 ± 0.09^†

3.34 ± 0.03^†

1.73 ± 0.08

6.30 ± 0.01^†

7.87 ± 0.01^†

Smoke

5.51 ± 0.46

10.87 ± 0.09

5.53 ± 0.04

2.00 ± 0.18

6.39 ± 0.01

7.97 ± 0.01

Dex

3.50 ± 0.45^†

8.75 ± 0.13^†

3.94 ± 0.06^‡

2.02 ± 0.15

6.41 ± 0.02

7.82 ± 0.02

Dex

3.94 ± 0.52*

8.38 ± 0.11^†+

4.06 ± 0.14^†

1.98 ± 0.13

6.40 ± 0.02

7.77 ± 0.04

GW5074

4.17 ± 0.66

8.27 ± 0.10^†

4.12 ± 0.06^†

1.81 ± 0.10

6.41 ± 0.02

7.80 ± 0.02

GW5074

3.99 ± 0.37*

7.92 ± 0.11^†+

3.42 ± 0.04^†#

1.93 ± 0.09

6.44 ± 0.02

7.83 ± 0.01