Figure 4.
Cell death assessment in the lungs. A: Ctrl; B: ECIG; C: HTP; D: CS; E: ECIG + CS; F: HTP + CS; and G: HTP + ECIG. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining of lung sections. A significant increase in apoptotic activity was demonstrated in CS, ECIG + CS, and HTP + CS when compared to the control.