机构地区:[1]天津中医药大学第一附属医院呼吸科,天津300193
出 处:《中华中医药学刊》2013年第11期2365-2368,共4页Chinese Archives of Traditional Chinese Medicine
基 金:国家自然科学基金面上项目(30973727)
摘 要:目的:探讨疏风通络方对哮喘大鼠血液和肺泡灌洗液(BALF)嗜酸细胞(EOS)数量变化的影响。方法:选择SPF级雄性Wistar大鼠为研究对象,随机分为正常组、模型组、氟美松组、DPI组、中药低、中、高剂量组,共7组,每组大鼠36只。第1d致敏:正常组给予生理盐水1mL代替抗原腹腔注射致敏,而其他6组给予1mL造模液(含Ⅴ级卵清蛋白100mg,氢氧化铝100mg和灭活百日咳杆菌6×10^9个)腹腔注射致敏;第15d开始激发:将各组大鼠分别置于相同大小的雾化箱内,正常组给予生理盐水6mL雾化激发,其他6组给予5%的Ⅴ级卵清蛋白(OVA)溶液6mL雾化激发,每次激发前2h正常组给予生理盐水1mL灌胃,而其他6组给予相应的药物灌胃。各组每天激发1次,每次激发30min,连续激发10d。距首次激发后的0h、6h、12h、24h、72h、10d各时点分别麻醉下每组取6只大鼠心脏采血和肺泡灌洗(取材结束后大鼠失血死亡),然后迅速对血液和BALF标本进行EOS数量检测。结果:血中EOS数量变化:在不同时点模型组均高于正常组(P〈0.001);各治疗组与模型组相比,氟美松组在0h、6h、12h、10d时点处于最低(P〈0.01或P〈0.001),DPI组在24h、72h时点处于最低,但二者之间比较没有显著差异(P〉0.05);其他治疗组之间相比,0—72h各时点DPI组处于最低(P〈0.001),在10d时点中药高剂量组处于最低,且优于DPI组(P〈0.01)。BALF中EOS数量:在0h时点各组之间没有显著变化(P〉0.05);在6h时除中药高剂量组外,模型组与其他治疗组和正常组之间均没有差异(P〉0.05);在12h时点除模型组较正常组显著上升(P〈0.05),各治疗组与模型组之间及各治疗组之间均没有差异(P〉0.05);在24h时点,模型组显著高于正常组(P〈0.01),各治疗组与模型组比较,只有氟美松有显著差异(Objective:To explore the effect of Shufeng Tongluo Decoction on eosinophils number in blood and bron- choalveolar lavage fluid(BALF) of asthmatic rats at different phases. Method: Wistar rats (SPF)were randomly divided into seven groups as follows : normal group, model group, Dexamethasone group, DPI group, low - dose group of Chinese medicine, medium - dose group of Chinese medicine, and high - dose group of Chinese medicine, 36 rats per group. The rats in normal group were sensitized by intraperitoneally injecting normal saline 1 mL and ones in the other 6 groups by 1mL sensitization liquid which contained 100 mg OVA ( Grade V) , 100 mg aluminum hydroxide and 6 ×10^9 inactivated whooping cough bacili on the first day of the experimental study. From the 15th day on, the rats in normal group were ad- ministrated normal saline 1 mL orally and 2 hours later were challenged by 6 mL normal saline aerosol inhalation once a day, 30 min a time, keeping for 10 days; the rats in the other 6 groups were respectively administrated corresponding drugs orally and 2 hours later were challenged by 6 mL OVA (5% , V Grade) aerosol inhalation once a day, 30 min a time, keeping for 10 days. The blood and BALF specimens were collected from rats by surgery under anesthesia at 0 h,6 h, 12 h,24 h ,72 h, 10 d after first challenge( rats death for blood loss) , then the EOS numbers in blood and BALF were detec- ted in a short time. Result : Changes of EOS numbers in blood : EOS number of model group in blood and BALF was higher than that of normal group at different phases ( P 〈 0. 001 ) ; compared with model group, EOS number of Dexamethasone group in blood and BALF was lowest at 0 h ,6 h, 12 h, 10 d (P 〈 0.01 or P 〈 0.001 ), that of DPI group was lowest at 24 h,72 h,but there was no significant difference between them( P 〉 0.05 ) ;compared among other treatment groups, EOS number of DPI group was lowest at 0 h,6 h,12 h,24 h,72 h (P 〈 0. 001 ) ,that of high dose group of Chinese m
分 类 号:R332[医药卫生—人体生理学]
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