Zataria multiflora Boiss and Carvacrol Affect β2-Adrenoceptors of Guinea Pig Trachea
Figure 4
Values of maximum response to isoprenaline (a) and slope of isoprenaline log concentration-response curves (b) obtained in the presence of different concentrations of extract from Zataria multiflora, carvacrol, 10 nM propranolol, and saline in nonincubated trachea (fine filled bars) (group 1: ) and incubated tissues with chlorpheniramine (medium filled bars) (group 2: ). There was not significant difference between the data of the extract and carvacrol with those of saline and between the data of two groups and the data of the extract with those of carvacrol. The comparison of slope and maximum response obtained in the presence of extract, carvacrol, and propranolol with those of saline and data of two groups were done using the paired -test. The comparison of the data of different concentrations of extract and carvacrol was performed using one-way analysis of variance (ANOVA) with Tukey-Kramer multiple post test.
