目的:观察麻荆止咳颗粒对咳嗽变异性哮喘(CVA)模型大鼠肺组织病理形态学变化及咳嗽次数的影响,探讨麻荆止咳颗粒改善CVA气道炎症的作用及疗效。方法:将60只SPF级SD雄性大鼠按照随机数字表法分为空白组、模型组、孟鲁司特钠组和麻荆止咳...目的:观察麻荆止咳颗粒对咳嗽变异性哮喘(CVA)模型大鼠肺组织病理形态学变化及咳嗽次数的影响,探讨麻荆止咳颗粒改善CVA气道炎症的作用及疗效。方法:将60只SPF级SD雄性大鼠按照随机数字表法分为空白组、模型组、孟鲁司特钠组和麻荆止咳颗粒低、中、高剂量组各10只。空白组不予造模,其余各组均采用卵清白蛋白(OVA)和氢氧化铝凝胶致敏并用OVA雾化激发的方法复制CVA模型大鼠。造模成功后,孟鲁司特钠组给予孟鲁司特钠溶液,麻荆止咳颗粒低、中、高剂量组分别给予麻荆止咳颗粒溶液对应药物剂量灌胃给药,空白组、模型组给予等体积蒸馏水,每天1次,连续14天。观察6组大鼠HE染色肺组织病理形态学变化及末次给药后3 min内咳嗽次数。结果:与空白组比较,模型组可见显著的气道炎症表现,末次给药后3 min咳嗽次数明显增多(P P P P > 0.05),麻荆止咳颗粒低、中、高剂量组气道炎症浸润改善情况无显著性差异(P > 0.05)。结论:麻荆止咳颗粒可减轻CVA大鼠肺组织的气道炎性损伤,减少咳嗽次数,从而减轻气道炎症,促进疾病恢复。Objective: To observe the effect of Majing Zhike Granules on the pathological morphological changes of lung tissue and the number of coughs in rats with cough variant asthma (CVA) model, and to explore the effect and efficacy of Majing Zhike Granules in improving CVA airway inflammation. Methods: Sixty SPF SD male rats were randomly divided into a blank group, a model group, a montelukast sodium group, and a low-, medium-, and high-dose Majing Zhike Granules group, 10 in each group. The blank group was not modeled, and the remaining groups were sensitized with ovalbumin (OVA) and aluminum hydroxide gel and stimulated with OVA aerosol to replicate the CVA model rats. After successful modeling, the montelukast sodium group was given montelukast sodium solution, and the low-, medium-, and high-dose Majing Zhike Granules groups were given Majing Zhike Granules solution by gavage at the corresponding drug doses. The blank group and model group were given equal volumes of distilled water once a day for 14 consecutive days. The pathological morphological changes of lung tissues stained with HE and the number of coughs within 3 minutes after the last administration of the drug were observed in the six groups of rats. Results: Compared with the blank group, the model group showed significant airway inflammation, and the number of coughs increased significantly 3 minutes after the last administration (P P P P > 0.05). There was no significant difference in the improvement of airway inflammatory infiltration in the low, medium and high dose groups of Majing Zhike Granules (P > 0.05). Conclusion: Majing Zhike Granules can reduce airway inflammatory damage in the lung tissue of CVA rats, reduce the number of coughs, thereby reducing airway inflammation and promoting disease recovery.展开更多
背景与目的肺部切除术后慢性咳嗽是最常见的并发症之一,严重影响患者术后生活质量,目前国内尚无关于肺部切除术后慢性咳嗽预测模型。因此,本研究旨在探讨肺部切除术后慢性咳嗽相关危险因素,构建预测模型并进行验证。方法回顾性分析2021...背景与目的肺部切除术后慢性咳嗽是最常见的并发症之一,严重影响患者术后生活质量,目前国内尚无关于肺部切除术后慢性咳嗽预测模型。因此,本研究旨在探讨肺部切除术后慢性咳嗽相关危险因素,构建预测模型并进行验证。方法回顾性分析2021年1月至2023年6月于中国科学技术大学附属第一医院接受肺部切除术的499例患者的临床资料和术后咳嗽情况,按7:3随机分配原则分为训练集(n=348)和验证集(n=151),根据训练集患者术后是否慢性咳嗽分为咳嗽组和非咳嗽组。使用中文版莱斯特咳嗽问卷(The Mandarin-Chinese version of Leicester cough questionnare,LCQ-MC)评估术前、术后咳嗽的严重程度及其对患者生活质量的影响,采用咳嗽视觉模拟量表(visual analog scale,VAS)和自拟的数字评分法(numerical rating scale,NRS)评估术后慢性咳嗽,采用单因素和多因素Logistic回归分析独立危险因素和模型构建,受试者工作特征(receiver operator characteristic,ROC)曲线评估模型区分度,校准曲线评估模型的一致性,绘制决策曲线分析(decision curve analysis,DCA)评估模型的临床应用价值。结果多因素Logistic分析筛选出术前用力呼气第1秒呼气量与用力肺活量比(forced expiratory volume in the first second/forced vital capacity,FEV_(1)/FVC)、手术方式、行上纵隔淋巴结清扫、行隆突下淋巴结清扫、术后胸腔闭式引流时间是术后慢性咳嗽的独立危险因素,基于多因素分析结果构建列线图预测模型。ROC曲线下面积为0.954(95%CI:0.930-0.978),最大约登指数所对应的临界值为0.171,此时敏感度为94.7%,特异度为86.6%。Bootstrap法抽样1000次,校准曲线图预测的肺部切除术后慢性咳嗽与实际发生风险高度一致。DCA显示当预测模型概率的预概率为0.1-0.9之间,患者表现为正的净收益。结论肺部切除术后慢性咳嗽严重影响患者生活质量。列线图的可视化展现形式有助于准确预测肺部切除术后慢性咳嗽,为临床决策提供支持。展开更多
文摘目的:观察麻荆止咳颗粒对咳嗽变异性哮喘(CVA)模型大鼠肺组织病理形态学变化及咳嗽次数的影响,探讨麻荆止咳颗粒改善CVA气道炎症的作用及疗效。方法:将60只SPF级SD雄性大鼠按照随机数字表法分为空白组、模型组、孟鲁司特钠组和麻荆止咳颗粒低、中、高剂量组各10只。空白组不予造模,其余各组均采用卵清白蛋白(OVA)和氢氧化铝凝胶致敏并用OVA雾化激发的方法复制CVA模型大鼠。造模成功后,孟鲁司特钠组给予孟鲁司特钠溶液,麻荆止咳颗粒低、中、高剂量组分别给予麻荆止咳颗粒溶液对应药物剂量灌胃给药,空白组、模型组给予等体积蒸馏水,每天1次,连续14天。观察6组大鼠HE染色肺组织病理形态学变化及末次给药后3 min内咳嗽次数。结果:与空白组比较,模型组可见显著的气道炎症表现,末次给药后3 min咳嗽次数明显增多(P P P P > 0.05),麻荆止咳颗粒低、中、高剂量组气道炎症浸润改善情况无显著性差异(P > 0.05)。结论:麻荆止咳颗粒可减轻CVA大鼠肺组织的气道炎性损伤,减少咳嗽次数,从而减轻气道炎症,促进疾病恢复。Objective: To observe the effect of Majing Zhike Granules on the pathological morphological changes of lung tissue and the number of coughs in rats with cough variant asthma (CVA) model, and to explore the effect and efficacy of Majing Zhike Granules in improving CVA airway inflammation. Methods: Sixty SPF SD male rats were randomly divided into a blank group, a model group, a montelukast sodium group, and a low-, medium-, and high-dose Majing Zhike Granules group, 10 in each group. The blank group was not modeled, and the remaining groups were sensitized with ovalbumin (OVA) and aluminum hydroxide gel and stimulated with OVA aerosol to replicate the CVA model rats. After successful modeling, the montelukast sodium group was given montelukast sodium solution, and the low-, medium-, and high-dose Majing Zhike Granules groups were given Majing Zhike Granules solution by gavage at the corresponding drug doses. The blank group and model group were given equal volumes of distilled water once a day for 14 consecutive days. The pathological morphological changes of lung tissues stained with HE and the number of coughs within 3 minutes after the last administration of the drug were observed in the six groups of rats. Results: Compared with the blank group, the model group showed significant airway inflammation, and the number of coughs increased significantly 3 minutes after the last administration (P P P P > 0.05). There was no significant difference in the improvement of airway inflammatory infiltration in the low, medium and high dose groups of Majing Zhike Granules (P > 0.05). Conclusion: Majing Zhike Granules can reduce airway inflammatory damage in the lung tissue of CVA rats, reduce the number of coughs, thereby reducing airway inflammation and promoting disease recovery.
文摘背景与目的肺部切除术后慢性咳嗽是最常见的并发症之一,严重影响患者术后生活质量,目前国内尚无关于肺部切除术后慢性咳嗽预测模型。因此,本研究旨在探讨肺部切除术后慢性咳嗽相关危险因素,构建预测模型并进行验证。方法回顾性分析2021年1月至2023年6月于中国科学技术大学附属第一医院接受肺部切除术的499例患者的临床资料和术后咳嗽情况,按7:3随机分配原则分为训练集(n=348)和验证集(n=151),根据训练集患者术后是否慢性咳嗽分为咳嗽组和非咳嗽组。使用中文版莱斯特咳嗽问卷(The Mandarin-Chinese version of Leicester cough questionnare,LCQ-MC)评估术前、术后咳嗽的严重程度及其对患者生活质量的影响,采用咳嗽视觉模拟量表(visual analog scale,VAS)和自拟的数字评分法(numerical rating scale,NRS)评估术后慢性咳嗽,采用单因素和多因素Logistic回归分析独立危险因素和模型构建,受试者工作特征(receiver operator characteristic,ROC)曲线评估模型区分度,校准曲线评估模型的一致性,绘制决策曲线分析(decision curve analysis,DCA)评估模型的临床应用价值。结果多因素Logistic分析筛选出术前用力呼气第1秒呼气量与用力肺活量比(forced expiratory volume in the first second/forced vital capacity,FEV_(1)/FVC)、手术方式、行上纵隔淋巴结清扫、行隆突下淋巴结清扫、术后胸腔闭式引流时间是术后慢性咳嗽的独立危险因素,基于多因素分析结果构建列线图预测模型。ROC曲线下面积为0.954(95%CI:0.930-0.978),最大约登指数所对应的临界值为0.171,此时敏感度为94.7%,特异度为86.6%。Bootstrap法抽样1000次,校准曲线图预测的肺部切除术后慢性咳嗽与实际发生风险高度一致。DCA显示当预测模型概率的预概率为0.1-0.9之间,患者表现为正的净收益。结论肺部切除术后慢性咳嗽严重影响患者生活质量。列线图的可视化展现形式有助于准确预测肺部切除术后慢性咳嗽,为临床决策提供支持。
