Protective effect of Radix Astragali injection on immune organs of rats with obstructive jaundice and its mechanism

Table 4 Comparison of pathological severity scores for lymph nodes

Groups	7 d	14 d	21 d	28 d
Sham-operation group	0.0 (2.0)c	0.0 (1.0)c	0.0 (1.0)c	0.0 (1.0)
Model control group	1.0 (2.0)	1.0 (1.0)	1.0 (2.0)	2.0 (1.0)
Treatment group	0.0 (0.0)a	0.0 (1.0)	0.0 (1.0)c	1.0 (0.0)c

^aP < 0.05 vs sham-operation group;

^cP < 0.05 vs model control group.