Table 2.

Effects of RAS capsule on SOD activity, MDA content and COX-2 expression in the colon tissue of depression model rats (n =10, mean±SD).

Group	Dose (mg/kg)	SOD (U/mg prot)	MDA (nmoL/mg prot)	COX-2 (A/%)
Normal	-	84.45±22.31	2.55±0.70	4.87±1.65
Model	-	53.39±11.15d	10.34±2.77d	53.2±68.16a
5-ASA	100	72.73±12.60bc	3.19±1.15b	24.59±9.14bd
RAS	300	70.81±12.36bc	2.92±0.75b	50.40±10.66d
RAS	600	73.30±15.30bc	3.19±1.08b	28.83±9.48bd
RAS	900	69.09±11.03bc	3.26±1.24b	27.04±9.56bd

^aP<0.05,

^bP<0.01 vs model group;

^cP<0.05,

^dP<0.01 vs normal group.