Figure 4.
FABP4-positive peribronchial blood vessel density is increased in BPD. (A) Representative images of immunohistochemistry for FABP4 demonstrate FABP4-positive peribronchial vessels (black arrowheads) in baboon and human lungs with and without BPD. Scale bars = 50 μm. (B) Peribronchial blood vessel density was quantitated and normalized to the airway perimeter in baboon and human infants with BPD (n = 5 samples per group).