不同时期COPD患者血清DcR3、Survivin表达水平及临床意义

目的 探讨不同时期慢性阻塞性肺疾病(COPD)患者血清诱饵受体3(DcR3)、凋亡抑制蛋白(Survivin)表达水平及临床意义。方法 选取2018年9月—2019年12月本院收治的92名COPD患者为研究对象,其中稳定型COPD 50例,急性加重期COPD 42例;同期本院健康体检者88例为对照组。测定各组研究对象血清DcR3、Survivin水平及肺功能指标。 与对照组[DcR3(106.54±48.35)pg/mL,Survivin(98.85±26.59)pg/mL]比较,稳定期组和急性加重期组血清DcR3[(395.23±123.85)pg/mL,(1 248.81±213.59)pg/mL]、Survivin [(267.54±84.69)pg/mL,(1 233.95±307.26)pg/mL]水平升高;与稳定期组比较,急性加重期组血清DcR3、Survivin水平升高。与对照组比较,稳定期组和急性加重期组FEV1%、FEV1 /FVC、DLCO%水平降低(P<0.001);与稳定期组比较,急性加重期组FEV1%、FEV1 /FVC、DLCO%水平降低(P<0.001)。随着低氧血症严重程度的增加,COPD患者血清DcR3、Survivin水平逐渐增加(P<0.001)。多因素logistics回归分析显示,高水平DcR3、Survivin、IL-12、hs-CRP为COPD病情的危险因素(P<0.001)。DcR3、Survivin与FEV、FEV1 /FVC呈负相关,与IL-12、TNF-α、hs-CRP呈正相关(P<0.001)。 COPD稳定期、急性加重期患者血清DcR3、Survivin表达水平升高,且DcR3、Survivin与COPD病情严重程度呈正相关。     

Home Use Guidance for Aerosol-Generating Procedures During the Coronavirus Disease 2019 Pandemic

From the early days of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, there were concerns that nebulizers used for the treatment of respiratory diseases as aerosol-generating devices could enhance the transmission of SARS-CoV-2. However, given the absence of any compelling data showing that nebulized treatments increase the risk of SARS-CoV-2 infection, it is unnecessary for community-dwelling patients with respiratory diseases to alter their current therapies, including nebulized treatments, to prevent symptom exacerbations. Maintaining current inhaled therapies also minimizes the risk of hospitalization and hospital-acquired infection of SARS-CoV-2.     

基于网络药理学及分子对接技术研究人参-陈皮配伍治疗慢性阻塞性肺疾病的作用机制＊

目的 研究人参-陈皮配伍治疗慢性阻塞性肺疾病（COPD）的主要活性成分和潜在的分子作用机制。方法 从TCMSP数据库中获取人参、陈皮的活性成分和潜在靶点，疾病靶点利用DrugBank、TTD、GeneCards数据库获取。“药物-化合物-靶点”互作网络可视化由Cytoscape3.6.1软件完成。通过绘制韦恩图得到人参、陈皮和COPD的共有靶点，运用Cytoscape平台获取共有靶点相互作用关系。通过DAVID数据库对共有靶点进行GO、KEGG富集分析。活性成分和关键靶点的分子对接由autodock vina实现，并采用体外抗炎活性实验进行验证。结果 从人参和陈皮中共筛选得到27个活性成分，800个疾病靶点，药物和疾病共有靶点70个。GO功能富集分析得到GO条目213个（P<0.01），KEGG通路富集筛选得到99条信号通路（P<0.01）。分子对接结果显示，甾醇类成分和黄酮类成分与关键靶点有较高的结合性。体外抗炎活性验证结果表明，川陈皮素、山奈酚、柚皮素、人参皂苷rh2能够减少炎症因子的分泌。结论 人参-陈皮配伍可通过多成分、多靶点和多通路调控炎症因子释放，达到治疗COPD的效果。     

The key role of macrophage depolarization in the treatment of COPD with ergosterol both in vitro and in vivo

Macrophages are the most abundant immune cells in the lung, which play an important role in COPD. The anti-inflammatory and anti-oxidation of ergosterol are well documented. However, the effect of ergosterol on macrophage polarization has not been studied. The objective of this work was to investigate the effect of ergosterol on macrophage polarization in CSE-induced RAW264.7 cells and Sprague-Dawley (SD) rats COPD model. Our results demonstrate that CSE-induced macrophages tend to the M1 polarization via increasing ROS, IL-6 and TNF-α, as well as increasing MMP-9 to destroy the lung construction in both RAW264.7 cells and SD rats. However, treatment of RAW264.7 cells and SD rats with ergosterol inhibited CSE-induced inflammatory by decreasing ROS, IL-6 and TNF-α, and increasing IL-10 and TGF-β, shuffling the dynamic polarization of macrophages from M1 to M2 both in vitro and in vivo. Ergosterol also decreased the expression of M1 marker CD40, while increased that of M2 marker CD163. Moreover, ergosterol improved the lung characters in rats by decreasing MMP-9. Furthermore, ergosterol elevated HDAC3 activation and suppressed P300/CBP and PCAF activation as well as acetyl NF-κB/p65 and IKKβ, demonstrating that HDAC3 deacetylation was involved in the effect of ergosterol on macrophage polarization. These results also provide a proof in immunoregulation of ergosterol for therapeutic effects of cultured C. sinensis on COPD patients.     

健脾固肾膏对慢性阻塞性肺疾病稳定期炎症因子和BODE指数的影响

目的:观察健脾固肾膏对慢性阻塞性肺疾病(Chronic Obstructive Pulmonary Disease,COPD)稳定期炎症因子和多维分级评分(BODE)指数的影响。方法:84例COPD稳定期患者,采用简单随机法,分为膏方组41例,对照组43例。两组均给予吸入噻托溴铵粉吸入剂,口服盐酸氨溴索片,膏方组在此基础上加用健脾固肾膏。两组连续治疗3个月。结果:膏方组总有效率高于对照组,差异有显著性意义(P<0.05);膏方组肿瘤坏死因子(Tumor Necrosis Factor,TNF-α)和白细胞介素-6(Interleukin-6,IL-6)浓度明显低于对照组,两组比较差异有显著性意义(P<0.05);膏方组呼吸困难程度评分,运动能力评分和BODE总分明显低于对照组,差异有显著性意义(P<0.05)。结论:健脾固肾膏可以提高COPD稳定期的中医治疗效果,降低TNF-α和IL-6水平,改善BODE指数,提高患者生活质量。     

Impact of training on use of inhalational techniques of different inhaler devices: A single institutional cross sectional observation study

ObjectiveTo assess the impact of training on use of inhalational techniques of different inhaler devices in spirometry proved cases of COPD and Bronchial Asthma in a tertiary care centre.MethodsA total of 128 spirometry proved cases of Asthma and COPD were enrolled. They were equally distributed in four groups comprising of 32 patients each according to their inhalation devices namely pMDI, Rotahaler, Accuhaler and Turbohaler. Patients were asked to demonstrate their inhalation technique and errors were noted according to their inhaler specific checklist. Patients were also interviewed regarding their knowledge about inhalation devices. Training about proper inhalation techniques was given to every participant. Rechecking of inhalation technique was again done at the second visit after 2 wks in the similar manner. Correct and incorrect steps of inhalation technique again evaluated by filling the checklist of the individual device to see post training improvement.ResultIn our study, out of total cases more than one third of the patients were >60 yrs of age (41.4%) and most of the patients were males (62.5%). During the interview at first visit, almost 92% patients claimed to know how to use the inhalation device correctly but in reality most of the patients (around 96.1%) had committed at least one mistakes in their inhalation technique among all the inhalation steps. Errors were noted in different steps of inhalation including the essential steps among all the four devices. Statistically significant improvement in inhalation techniques including the essential steps were found among all the four devices after educational intervention and demonstration of sequential steps involved in particular inhaler.ConclusionOur study confirmed a significant increase in the percentage of improvement in inhalation technique after proper demonstration and training about the inhalation devices. Inhalation technique including essential steps of inhalation significantly improved in all the four devices used.