Wang et al. (Wang and Huang, 2014) showed that APS upregulated expression of epidermal growth factor-like domain 7 (EGFL7) and B-cell lymphoma 2, downregulated Bax expression, significantly reduced alveolar injury, and had a protective effect on the lung tissues of BPD patients, which was closely related to inhibition of apoptosis of endothelial cells. The gene discussed is EGFL7; the disease is bronchopulmonary dysplasia.