AIM:To investigate the effects of Gypenosides(GPS) on hemodynamics and nitric oxide levels in rabbits injected with endotoxin. METHODS:Rabbits were randomly divided into three groups: control, endotoxin (LPS), and LPS plus GPS. The animals were anaethetized with intravenous injection of 20% ethyl urethane. Nitric oxide levels were determined by colorimetric analysis.The parameters of hemodynamics, including mean arterial pressure (MAP), heart rate (HR), peak value of ventricle pressure (PEAK), ±d p /d t max , area of cardiac force circle (AREA...