Fig. 7From: Smoking-associated increase in mucins 1 and 4 in human airwaysSoluble MUC1 from basal cells or sub-epithelial glands were measured with quantitative immunoblotting. MUC1 concentration in bronchial wash samples. MUC1 concentration in the whole group (a) and in the females (b). 1 unit equals 0.4 μg/mL. Results are shown as mean and standard error of meanBack to article page