NFKB2 and necrotizing enterocolitis: The increase in the NFKB2 jejunal expression in the LBBW piglets was in line with the trend of the higher ROM concentration found in the blood at d21 and was consistent with the studies performed on very low birth body weight (VLBW), preterm human infants, and human infants with necrotizing enterocolitis (NEC), although no direct comparison was made (Ng, 2014; Tirone et al., 2019).