Figure 1From: Inhibition of TNFalpha in vivo prevents hyperoxia-mediated activation of caspase 3 in type II cellsHyperoxia increases the expression of TNFRI, TNFα and caspase 3 in vivo. Lung sections of normoxic (control) and hyperoxic rats were prepared as described in Materials and Methods and were labelled by single immunofluorescence with antibodies directed against TNFRI, TNFα or active caspase 3Back to article page