蜂胶总黄酮镇痛作用及其机制研究

目的:研究蜂胶总黄酮(TFP)镇痛作用及其机制。方法:镇痛实验采用甲醛法、热板法、温浴法、扭体法。随机将小鼠分为生理盐水(NS)对照组、吗啡阳性对照组及不同剂量TFP组,各组灌胃给药后分别测定各实验条件下各项疼痛指标。结果:与NS对照组比较,TFP组用药后疼痛评分降低(15min后),扭体反应数减少(50、100mg/kg),舔足潜伏期延长(50、100mg/kg),缩尾反应潜伏期延长(50mg/kg),小鼠血清和脑组织中丙二醛、前列腺素-2合成及一氧化氮含量明显降低。结论:TFP具有明显的镇痛作用,其机制可能与抑制前列腺素-2和脂质过氧化及减少脑组织一氧化氮释放有关。

Study on the Analgesic Effect of Total Flavonoids of Propolis and Its Mechanism

OBJECTIVE:To study the analgesic effect of total flavonoids of propolis(TFP)and its mechanism.METHˉODS:The analgesic effect test is performed by formaldehyde method,hot-plate method,warm bath method and writhing method.The mice were randomly divided into normal saline(NS)control group,morphine positive control group and different dosage of TFP group,each pain index under each experiment condition was determined after intragastric administration of each group of mice.RESULTS:Compared with the NS control group,TFP group showed a decreased scoring in pain reaction(15min later),reduced writhing response(50,100mg/kg),prolonged latent phases of foot licking(50,100mg/kg)and tail-shrinking(50mg/kg),significant decrease of the content of malonaldehyde,prostaglandin-2and NO in mice'blood serum and brain tissue.CONCLUSION:TFP have notable analgesic effect,the mechanism may be related to its function on inhibiting prostaglandin-2and lipid peroxidation and reducing the release of NO releasing of brain tissue.