Table 3.

Histopathological ischemic brain changes in rats.

Group	Dose	n	Histopathological grading of ischemic brain in rats
			−	+	++	+++	++++	P value
Sham operation group	–	6	6	0	0	0	0	0.002**
Model group	–	6	0	0	4	2	0	1.000
Nimodipine injection group	0.5 mg/kg	6	3	2	0	1	0	0.031*
E. breviscapus injection group	5 mL/kg/d	6	1	4	0	1	0	0.030*
Scutellarin group	1.1505 mg/kg	6	2	1	3	0	0	0.031*
3,5-Dicaffeoylquinic acid group	0.2335 mg/kg	6	3	1	2	0	0	0.016*

*Compared with the model group, *P < 0.05 and **P < 0.01.