Fig. 8
From: Smoking-associated increase in mucins 1 and 4 in human airways
Cell-bound and soluble MUC1 as well as MUC4 was studied in large airways of non-smokers and smokers. The non-smoker group includes both never-smokers and COPD ex-smokers whereas the smoker group includes smokers with normal lung function and smokers with COPD. a MUC1 scores in cells suggesting basal cell phenotype from immunohistochemical stainings; b MUC4 scores in cells suggesting goblet cell phenotype from immunohistochemical stainings and c. Amount of MUC1 in bronchial wash samples; 1 unit equals 0.4 μg/mL. MUC1 results are shown as mean bars and standard error of mean, MUC4 results are shown as median bars and standard error of median