Table 1.

Maximal contraction (E_max) and sensitivity of BTSM strips for KCl, histamine and methacholine after 8-day pretreatment in the absence or presence of 10 μM methacholine

	Control	Methacholine (10 μM) pretreated
	Sensitivity	Emax (%)	Sensitivity	Emax (%)
KCl	20.8±1.1	100	25.7±0.9*	37±5**
Histamine	5.9±0.1	100	5.7±0.1*	46±3**
Methacholine	7.3±0.1	100	6.5±0.1*	48±6*

Sensitivity to KCl expressed as EC₅₀ (mM); sensitivity to histamine and methacholine expressed as pEC₅₀ (−log M). Data represent means±s.e.mean from four (methacholine) to eight (KCl, histamine) experiments, each performed in duplicate.

^*P<0.05;

^**P<0.001 compared to control.