Eupolyphaga total alkaloid extract (TAEsI), ground beetle extract (EE), solvents, 0.3% twain west cement, 0.2% concentration of 1%, eupolyphaga total alkaline solution (TAES Ⅱ), the concentration of 2.5%, pH = 6, propranolol, sulfuric acid isopropyl adrenaline, etc.

TAEsI EE to clip the mice trachea ecg disappeared time, the influence of body weight to 18.5 + l. 70 mice (x + / – SD) 44, male and female both, four groups at random, solvent control group (0.3% and 0.3% twain west cement mixture) TAEsI (200 mg/kg), EE (200 mg/kg), propranolol (10 mg/kg) as the positive control, were intraperitoneal injection, medicine after 30 minutes, with urethane (1.2 g/kg) intraperitoneal injection of anesthesia, separation of the trachea, use after arterial clip clip, observe ecg (Ⅱ lead), immediately disappear time.Results show that TAEsI and propranolol can prolong of middle of the back clip mice electricity disappeared.

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