The NEC+Succi group presented an even greater increase in F4/80 and SUCNR1 colocalized cells than the NEC group (p < 0.05); however, the proportion was significantly lower in the NEC+Succi+SUCNR1‐Ab group than in that of the NEC+Succi group (p < 0.05; Figure 6c,d). The gene discussed is SUCNR1; the disease is necrotizing enterocolitis.