Figure 4
IL-4 and IL-5 mRNA expression in small (<2 mm in diameter) and large (<2 mm in diameter) airways of asthmatic patients and control individuals. For airways that are less than 2 mm in diameter, results are expressed as the mean of 10 airways from four asthmatic patients and 14 airways from 10 control individuals. For airways that are greater than 2 mm in diameter, results are expressed as the mean of 10 airways from six asthmatic patients and 10 airways from 10 control individuals. *P < 0.05 versus control. Pi, internal perimeter. Adapted from Minshall et al. [5].