Fig. 10.

Pulmonary infiltration with neutrophils in mice subjected to high tidal volume (HV_T) ventilation in the presence and absence of inhaled hydrogen sulfide (H₂S) (60 ppm) or after intravascular administration of sodium sulfide (Na₂S) (n = 3 in each group). Lung tissue sections were reacted with antibodies against neutrophils and were compared with lung sections obtained from control mice not subjected to HV_T ventilation (n = 2). Representative examples of lung sections are displayed in figure 9. Neutrophil concentrations are reported as the number of neutrophils per high power field (magnification ×40).