Fig. 3From: Safety of chronic hypertonic bicarbonate inhalation in a cigarette smoke-induced airway irritation guinea pig modelAssessment of airway intraluminal perimeter. Representative histopathological pictures of bronchioles of (a) NaCl, (b) NaHCO3, (c) NaCl + CSE, and (d) NaHCO3 + CSE-treated guinea pigs. Neither treatment induced significant changes in airway intraluminal perimeter (f). n = 10 measurements/group, graph represents individual data and median; Kruskal–Wallis followed by Dunn's multiple comparisons test. Panel (e) represents the method for measurementBack to article page