OBJECTIVE To study the protective effect of ginsenoside Rgl on blood-brain barrier in rats with cerebral ischemia reperfusion injury and its possible mechanism. METHODS SD rats were randomly divided into sham operation group, model group, low dose group of ginsenoside Rgl (10 mg • kg-1), medium dose group of ginsenoside Rgl (20 mg • kg-1), high dose group of ginsenoside Rgl (40 mg • kg-1) and positive drug edaravone group (10 mg • kg-1). The rat model of focal cerebral ischemia reperfusion injury was established by thread embolism method. A...