The expression of the TAG1 (−0.47, 0.79; p ≤ 0.04), pro-BDNF (−0.68, 0.54; p ≤ 0.04), and pro-NGF (−0.39, 1.06; p ≤ 0.04), SYN 1 (−0.74, 0.86; p ≤ 0.001) proteins was significantly decreased in neonates with IP and RDS, compared to the neonates without these complications. The gene discussed is BDNF; the disease is newborn respiratory distress syndrome.