Table 1.

Determination of NO content in brain homogenate. Effect of nitric oxide level in brain homogenate of total flavonoids of 1 Mao Dongqing on cerebral ischemia reperfusion injury in mice ($\overline{x}\pm s$).

Group	Animal (Each)	Dosage (mg kg−1)	NO (μmol/gprot)	Mortality (%)
Sham	17	–	11.66 ± 1.52△△	0.0
The model group	9	–	18.58 ± 8.61	47.1
Nimodipine group	12	40	13.63 ± 3.38△△	29.4
Ginaton group	12	40	12.84 ± 0.83△△	29.4
High dose of total flavonoids of Mao Dongqing group	13	300	12.57 ± 0.72△△	23.5
In the dose of Mao Dongqing total flavonoids group	12	150	14.34 ± 0.79△△	29.4
A small dose of total flavonoids of Mao Dongqing group	12	75	18.36 ± 1.30	29.4

Compared with the model group (Delta P < 0.05, Delta P < 0.01).