Effects of CAO-GMS infused via the hepatic artery on respiration, blood pressure and heart rate of dogs. A: Blank control group (with 3 g/L CMC-Na, 10 mL/kg); B: CAO-GMS group (with CAO-GMS, 0.1 g); C: CAO-GMS group (with CAO-GMS, 0.03 g); D: CAO group (with CAO, 6.4 μL/kg); 1: Before administration; 2: 60 min after administration; 3: 180 min after administration.