Effects of total chikusetsusaponins and orlistat (a lipase inhibitor) on rat plasma triacylglycerol levels after oral administration of a lipid emulsion. Open circles, lipid emulsion; solid circles, lipid emulsion plus total chikusetsusaponins (1000 mg/kg) and open squares, lipid emulsion plus orlistat (a lipase inhibitor) (45 mg/kg). Values are means ± S.E. of 4 rats. * Significantly different from lipid-emulsion-only treated group, P < 0.05.