Table I.

Comparison of histopathological features in each group.

Group	Intestinal injury scoring
Control (n=12)	0
NEC (n=7)	2.6±0.53a
NEC + AS-IV (25 mg/kg; n=8)	2.1±0.83
NEC + AS-IV (50 mg/kg; n=10)	1.9±0.87b
NEC + AS-IV (75 mg/kg; n=10)	1.4±0.51c

Values are presented as the mean ± standard error of the mean in each group (n=7–12).

^aP<0.01, vs. the control

^bP<0.05

^cP<0.01, vs. the model group. NEC, necrotizing enterocolitis; AS-IV, astragaloside IV.