Fig. 2

Representative Immunostained Photomicrographs of Control, Sepsis and ARDS lung tissue. Elafin: A – Control group: staining almost negative, except for some mildly positive macrophages; B – Sepsis Group: mild positive staining, mainly in lymphomononuclear cells; and C- ARDS group: Intense positive staining in epithelial and inflammatory cells. RAGE: D- Control group: intense positive staining of the alveolar cells and macrophages. E – Sepsis Group: intense positive staining of the alveolar cells and inflammatory cells. F – ARDS group: intense positive staining of the alveolar cells and inflammatory cells. SP-D: G – Control Group: Positive staining in type II pneumocytes. H – Sepsis Group: Positive staining in type II pneumocytes and mild positive staining in macrophages. I – ARDS Group: Positive staining of type II pneumocytes. Mild positive staining in macrophages and hyaline membrane. Scale Bar 40x = 20 μm