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超微定喘方治疗哮喘热哮证的临床观察及对哮喘大鼠神经源性炎症的影响
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摘要
目的:比较超微定喘方不同剂量对哮喘模型大鼠的肺内免疫、神经源性气道炎症的影响,探讨其疗效机理,并探寻其有效剂量。观察超微定喘方对成人与儿童哮喘(热哮证)的临床疗效,并检测患者治疗前后肺功能的变化,为其临床应用提供依据。
     方法:①健康Sprapue-Demey大鼠随机分为正常对照组(A组)、哮喘模型组(B组)、定喘汤汤剂组(C组)、超微定喘方低剂量组(D组)、超微定喘方等剂量组(E组)。建立卵白蛋白哮喘模型,通过气道反应性测定确保模型成功。D、E组分别予定喘汤超微配方颗粒等倍剂量、1/2剂量治疗。观察NGF(Nerve growth factor)、SP (Substance P)及其mRNA (messenger Ribonucleic acid)在模型大鼠肺组织中的表达,并用显微图像分析系统测定数个视野中的阳性系数和灰度值。②采用随机方法将成人与儿童哮喘患者各90例分别分为3组,对照组给予氨茶碱加布地奈德治疗,定喘汤组在对照组基础上加定喘汤汤剂治疗,超微定喘方组在对照组基础上加超微定喘方治疗。检测治疗前后EOS (eosinophil)、IL-4(Interleukin4)及肺功能水平。
     结果:五组大鼠的基础呼吸阻力(Re)相似,予生理盐水激发后的Re也相似,均无统计学意义(P>0.05)。予10~40ug/kg浓度梯度的Ach (acetylcholine)激发后,哮喘模型组Re比较正常对照组,差异有统计学意义(P<0.05)。80~160ug/kg浓度梯度的Ach激发后,哮喘模型组Re显著增加(P<0.01)。等剂量组与低剂量组之间无差异(P>0.05)。模型组的NGF、SP含量明显升高,模型组与其余组之间差异显著(P<0.01),等剂量组与低剂量组、正常组之间无差异(P>0.05)。定喘汤汤剂组、等剂量组、低剂量组大鼠肺组织NGF、NGFmRNA平均阳性系数低于模型组,差异有统计学意义(P<0.01)。
     成人哮喘的临床研究显示,定喘汤组的总有效率与西医对照组相比无统计学差异,说明二者的临床疗效相近(P>0.05)。在平喘及缓解哮鸣音方面,各组比较无显著性差异(均P>0.05)。在改善咳嗽及咯痰症状方面,三者有统计学上的差异(P<0.05),定喘汤及超微定喘方优于西医对照组。在精神、口渴、食欲、舌苔脉象方面,三者比较无显著性差异(均P>0.05)。在改善发热、面色、大小便等症状方面,三者有统计学上的差异(P<0.05),定喘汤及超微定喘方优于西医对照组。疗程后三组第1秒用力呼气量及最大呼气流速较治疗前都有所提高(P<0.05),定喘汤及超微定喘方组与西医对照组治疗效果相比无统计学差异(P>0.05)。疗程后三组均能显著降低哮喘时外周血中异常升高的EOS数,统计学有显著性差异(P<0.01),定喘汤及超微定喘方组与西医对照组相比无统计学差异(P>0.05)。疗程后三组均能显著降低哮喘患者血清IL-4水平,统计学有显著性差异(P<0.01),定喘汤及超微定喘方组与西医对照组相比有统计学差异(P<0.05)。
     儿童哮喘的临床研究显示,各组总有效率比较,差异无明显统计学意义(P>0.05),而临床控制率比较,治疗组明显高于对照组,差异有统计学意义(P<0.05),各组治疗前后主要症状积分、总积分比较有显著差异,对照组除对紫绀外,其他症状的前后积分、总积分比较也有显著差异。各组对症状改善经差值比较(成组t检验),咳嗽、咯痰痰鸣、鼻煽、哮呜音比较无差异(P>0.05);定喘汤饮片组及超微定喘方组在改善喘息、紫绀症状方面优于对照组(P<0.05)。定喘汤组、超微定喘方组治疗前后次要症状积分、总积分比较均有显著差异,对照组除发热面色外,其他症状的前后积分、总积分比较也有显著差异。各组对症状改善经差值比较,精神、口渴、食欲、舌苔脉象比较无差异(P>0.05);发热、面色、大小便比较有差异(P<0.05)。定喘汤组、超微定喘方组治优于对照组。疗程后各组第1秒用力呼气量及最大呼气流速较治疗前都有明显增加(P<0.05),说明都能改善肺功能。在改善肺功能方面,定喘汤饮片组及超微定喘方组优于西医对照组(P<0.05)。
     结论:①大鼠致敏哮喘模型形成后气道炎症反应明显,具有操作简单易行,造模成功率较高的优点。②致敏大鼠哮喘模型肺内NGF、SP含量增多。气道粘膜、粘膜下层、平滑肌层及肺间质炎症细胞胞浆内均有明显的NGF的定位表达,同时也可平行地观察到上述部位显著的NGFmRNA水平表达增高。③定喘汤及其超微制剂可以减轻哮喘模型大鼠肺内NGFmRNA水平的表达及NGF蛋白水平,表明其对气道神经源性炎症有改善作用。④超微定喘方以1/2等效剂量时即可达与传统汤剂相同的作用效果,其有良好的止咳化痰、平喘作用,能显著改善肺功能,降低哮喘时外周血中异常升高的嗜酸性粒细胞,下调IL-4,作用优予西医对照组。⑤超微定喘方在平喘及缓解哮鸣音方面与对照组作用相当。在改善咳嗽及咯痰症状方面,定喘汤及超微定喘方优于西医对照组,说明定喘汤和超微定喘方均有较好的平喘、止咳化痰作用。⑥超微定喘方在治疗儿童热性哮喘中,对其喘息、紫绀以及发热、面色、大小便等症状的改善较定喘汤更为明显,而在其他症状改善方面无明显差异。总疗效统计中,明显优于西医对照组。⑦超微定喘方治疗热哮证具有较好的临床疗效,并具有良好的安全性。
Objective:
     To compare effect of different doses of supermicro DingChuan Decoction on pulmonary immune neurogenic airway inflammation of thermal asthma model rats, to investigate the curative mechanism, to explore effective dose. To observe clinical effect of supermicro DingChuan Decoction on adult and childhood asthma(thermal asthma),and to detect lung function changes of patients before and after treatment,to provide evidence for its clinical application.
     Methods:
     ①health Sprapue-Demey rats are randomly divided into normal control group (group A), asthma model group (group B), DingChuan Decoction group (group C), low-dose supermicro DingChuan Decoction group (group D), supermicro DingChuan Decoction normal dose group (group E). To make ovalbumin asthma model with airway responsiveness determination to ensure successful.Group D and E are respectively to given supermicro DingChuan soup1/2dose and normal dose. To Observe NGF and SP and its mRNA expression in lung tissue of the rat models,and to determinate several positive coefficient and grey value of vision with microscopic image analysis system.
     ②andomly90cases of adult and90cases childhood asthma patients are separately divided into3groups, control group are given aminophylline and budesonide therapy, besides the drugs DingChuan Decoction group are given DingChuan Decoction, supermicro DingChuan Decoction group are given supermicro DingChuan Decoction.To detecte EOS, IL-4and lung function level.before and after treatment.
     Results:
     The basic respiratory resistance (Re) of the five groups rats are similar both before and after with physiological saline stimulated,there is no statistical significance (P>0.05). After given10-40ug/kg of Ach excitation, the difference of asthma model group and normal control group is statistically significant (P<0.05). After given80-160ug/kg of Ach excitation, Re of asthma model group increased significantly (P<0.01). There is no difference between normal dose group and low dose group (P>0.05). NGF> SP of model group increased, the difference between model group and other groups is significant (P<0.01), there is no difference between the dose group, low dose groupand normal control group (P>0.05). average positive coefficient of NGF、NGFmRNA of lung tissue of Dingchuan Decoction group, normal dose group, low dose group rats is lower than that in the model group, the difference is statistically significant (P<0.01).
     Clinical study of adult asthma shows, the difference of total efficiency between Dingchuan Decoction group and the western medicine control group have no statistical difference, which shows the two have similar clinical curative effect(P>0.05). In relieving asthma and wheeze, there is no significant difference between groups (P>0.05). In the improvement of cough and expectoration symptom, there is significant difference (P<0.05), Dingchuan Decoction and supermicro Dingchuan decoction is better than western medicine control group. In spirit, appetite, thirst, tongue and pulse condition, there is no significant difference between the three methods (P>0.05). In the improvement of fever, complexion, toilet and other symptoms, there is statistically significant difference (P<0.05three), Dingchuan Decoction and supermicro Dingchuan decoction is better than western medicine control group. Are all improved after treatment in three groups of FEV1and PEFR than before treatment (P<0.05), as for treatment effect,there is no significant difference between Dingchuan Decoction group and Western medicine control group (P>0.05). After treatment, increased EOS in the peripheral blood of asthma of three groups is significantly decreased,with statistical significance (P<0.01), Dingchuan Decoction group and Western medicine control group show no statistical difference (P>0.05). The three groups after treatment can significantly decrease the IL-4level in serum of patients with asthma, there is statistically significant differences (P<0.01), Dingchuan Decoction group and Western medicine control group show no statistical difference (P>0.05).
     Clinical study on childhood asthma shows, total efficiency compared, difference is not statistically significant (P>0.05), and as for the clinical control rate, treatment group is obviously higher than that of the control group, the difference is statistically significant (P<0.05), as for the main symptoms and the total score points,there is significant difference between before and after treatment, as for the control group, in addition to the cyanosis, and other symptoms, there are significant differences in total integral comparison. By comparing difference of improved symptoms of each group (group t test), cough, sputum, flaring of nares, wheezing sounds have no difference (P>0.05); Dingchuan Decoction group and supermicro Dingchuan Decoction group are better than the control group in improving the wheezing, cyanosis (P<0.05). The total integral secondary symptom scores of the Dingchuan Decoction group, supermicro Dingchuan decoction group, are significantly different before and after treatment. In addition to fever, there are significant differences in total score of other symptoms before and after treatment. The comparison between the groups in improvement of symptoms, thirst, appetite, spirit of tongue, pulse,with no difference (P>0.05); fever, complexion, feces and urine are significantly different (P<0.05). Dingchuan Decoction group, supermicro Dingchuan decoction are better than the control group. Are all improved after treatment in three groups of FEV1and PEFR than before treatment (P<0.05), which shows that all groups can improve lung function. In the improvement of pulmonary function, Dingchuan Decoction group and supermicro Dingchuan Decoction group are better than western medicine control group (P<0.05).
     Conclusion:
     ①The formation of the rat asthmatic model, has the advantages of simple operation, high success rate,and airway inflammation is clear
     ②he NGF, SP content in the lungs of sensitive asthmatic model rats increase. Airway mucosa, submucosa, muscle layer and pulmonary interstitial inflammation cells show significant NGF expression and localization, it can also be observed that NGFmRNA expression level is significantly increased of the site.
     ③ingchuan Decoction and its supermicro substance can reduce the level of NGFmRNA expression of NGF and protein levels in lung of asthma model rats, which shows that it has the improvement effects on airway neurogenic inflammation.
     ④he supermicro Dingchuan Decoction of1/2equivalent dose can reach the same effect of traditional decoction, can relieve the cough and phlegm, relieve asthma, can significantly improve lung function, reduce abnormal increased asthma eosinophils in peripheral blood and downregulate IL-4, superior to the western medicine control group
     ⑤he supermicro Dingchuan Decoction has the same effect of control group in relieving asthma and wheeze. In the improvement of cough and expectoration symptom, Dingchuan Decoction and supermicro Dingchuan decoction are better than western medicine control group, which shows Dingchuan Decoction and supermicro Dingchuan decoction have better effect in relieving asthma and cough expectorant.
     ⑥he supermicro Dingchuan Decoction have more obvious effect in the treatment of children febrile asthma, wheezing, cyanosis and the fever, complexion, toilet and other symptoms, while have no obvious difference in the other symptoms. The total curative effect statistics are better than western medicine control group.
     ⑦he supermicro Dingchuan decoction has good clinical effect in treatment of thermal asthma, and is safe
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