OBJECTIVE： To observe the effect of Xiaochuanping powder （XP）, a traditional Chinese prescrip- tion for the treatment of cough and asthma, on serum concentrations of eosinophil cationic protein （ECP）, tumor necro...OBJECTIVE： To observe the effect of Xiaochuanping powder （XP）, a traditional Chinese prescrip- tion for the treatment of cough and asthma, on serum concentrations of eosinophil cationic protein （ECP）, tumor necrosis factor （TNF）-a, and interleu- kin （IL）-4, eosinophil counts, as well as expression of matrix metalloproteinase （MMP）-9, tissue inhibi- tor of metalloproteinase （TIMP）-I in the lung tissues of asthmatic rats. METHODS： Sixty clean-grade Sprague-Dawley rats were divided randomly into six groups： normal control （NC）, asthma model, Guilong Kechuanning （GK） group, as well as high, intermediate-, and lowdose XP groups. Rats were sensitized with ovalbu- min （OVA） to trigger asthma. Serum concentrations of ECP, TNF-a and IL-4, eosinophil counts, as well as expression of MMP-9 and TIMP-1 in lung tissues were evaluated using an immunofluorescence method, mRNA expression of MMP-9 and TIMP-1 was determined using real-time quantitative poly- merase chain reaction. RESULTS： Compared with the asthma-model group, serum concentrations of ECP, TNF-a, and IL-4, and eosinophil counts decreased significantly in the high- and intermediate-dose XP groups and GK group （all P 〈 0.01）. Protein expression of MMP-9 and TIMP-1 decreased significantly in the high- and intermediate-dose XP groups and GK group （all P 〈 0.01）. Transcription of MMP-9 and TIMP-1 mRNA and the ratio of expression of MMP-9：TIMP-1 in lung tissue were significantly lower （P 〈 0.01）. CONCLUSION： XP can reduce TNF-a secretion, sup- press the infiltration/activation of eosinophils, re- duce serum concentrations of ECP and IL-4, reduce the protein and mRNA expression of MMP-9 and TIMP-1 in lung tissue, and regulate the balance between expression of MMP-9 and TIMP-1. In these ways, XP alleviated the inflammation and remodel- ing of the airways.展开更多
文摘目的从呼吸系统疾病的角度分析和认识ANCA相关性血管炎(ANCA-associated Vasculitis,AAV)。方法回顾性分析我院确诊的10例以呼吸系统病变为主要表现的AAV患者的临床资料,对患者的临床表现、实验室检查、影像学表现以及其他特殊检查结果进行汇总分析,采用五因子评分系统评估预后。结果本组患者显微镜下多血管炎(microscopic polyangiitis,MPA)7例,肉芽肿性多血管炎(granulomatosis with polyangiitis,GPA)2例,嗜酸性肉芽肿性血管炎(eosinophilic granulomatosis with polyangiitis,EGPA)1例,男性3例,女性7例。咳嗽咳痰咯血及呼吸困难是AAV最常见的呼吸系统症状,部分患者合并其他系统特别是肾脏累及。实验室检查MPA均有p ANCA和MPO-ANCA阳性,GPA和EGPA患者有c ANCA和PR3-ANCA阳性,7例患者有CRP升高(82.18±48.67mg/L),10例患者均有血沉升高(62.9±13.5mm/h);仅有4例患者出现肌酐轻度升高(139±29.3umol/L),3例患者淋巴细胞总数降低,提示继发感染风险大,预后欠佳。影像学表现多表现为双肺磨玻璃斑片影、间质改变以及蜂窝肺表现,对诊断具有提示作用。肺功能检查表现为限制性通气功能障碍,部分患者出现肺动脉高压。结论肺部是AAV的常见累及器官,部分患者以肺部病变为主要表现,呼吸科医生应加强对AAV的认识,提高诊断率,减少误诊和漏诊。
基金Supported by Natural Science Foundation of China:Intervention Mechanism of the Method of Tonifying Qi And Promoting Blood Circulation and Resolving Phlem on Airway Remodeling after COPD(No.81473675)Based on p38MAP Signal Pathway Yiqi Huoxue Huatan Method was Explored the Mechanism Study of Bronchial Asthma Airway Remodeling(No.81774301)Excellent Young Talent Fund Project of Colleges and Universities in Anhui Province:Study on the Mechanism of Airway Remodeling of Asthma Model In Rats With Xiaochuanping Powder(No.2011SQRL093)
文摘OBJECTIVE： To observe the effect of Xiaochuanping powder （XP）, a traditional Chinese prescrip- tion for the treatment of cough and asthma, on serum concentrations of eosinophil cationic protein （ECP）, tumor necrosis factor （TNF）-a, and interleu- kin （IL）-4, eosinophil counts, as well as expression of matrix metalloproteinase （MMP）-9, tissue inhibi- tor of metalloproteinase （TIMP）-I in the lung tissues of asthmatic rats. METHODS： Sixty clean-grade Sprague-Dawley rats were divided randomly into six groups： normal control （NC）, asthma model, Guilong Kechuanning （GK） group, as well as high, intermediate-, and lowdose XP groups. Rats were sensitized with ovalbu- min （OVA） to trigger asthma. Serum concentrations of ECP, TNF-a and IL-4, eosinophil counts, as well as expression of MMP-9 and TIMP-1 in lung tissues were evaluated using an immunofluorescence method, mRNA expression of MMP-9 and TIMP-1 was determined using real-time quantitative poly- merase chain reaction. RESULTS： Compared with the asthma-model group, serum concentrations of ECP, TNF-a, and IL-4, and eosinophil counts decreased significantly in the high- and intermediate-dose XP groups and GK group （all P 〈 0.01）. Protein expression of MMP-9 and TIMP-1 decreased significantly in the high- and intermediate-dose XP groups and GK group （all P 〈 0.01）. Transcription of MMP-9 and TIMP-1 mRNA and the ratio of expression of MMP-9：TIMP-1 in lung tissue were significantly lower （P 〈 0.01）. CONCLUSION： XP can reduce TNF-a secretion, sup- press the infiltration/activation of eosinophils, re- duce serum concentrations of ECP and IL-4, reduce the protein and mRNA expression of MMP-9 and TIMP-1 in lung tissue, and regulate the balance between expression of MMP-9 and TIMP-1. In these ways, XP alleviated the inflammation and remodel- ing of the airways.
