GFAP and bronchopulmonary dysplasia: TSG-6 treatment decreases hyperoxia-induced cell death and reversed loss of myelination and increased GFAP expression in the brain of BPD mice (A-D). Histogram demonstrating the quantitative analysis of TUNEL-positive cells, expressed as a percentage (as described in Additional Information methods) in the olfactory bulb region (A), forebrain region (B), midbrain region (C), and hindbrain region (D) in RA, BPD, BPD+ PBS and BPD + TSG-6-injected PN14 mice brain.