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Correlation between immune and neuronal parameters and stress perception in allergic asthmatics.

机译:过敏性哮喘患者的免疫和神经元参数与压力感知之间的相关性。

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BACKGROUND: Asthma is a chronic disease defined by airway inflammation, increased airway hyperresponsiveness and episodes of airway obstruction. Although there are abundant clinical and experimental data showing that stress may worsen asthma, the mechanisms linking stress to asthma are not well understood. By inducing a pro-inflammatory cytokine milieu, stress might enhance airway inflammation in bronchial asthma. We therefore investigated the correlation of stress perception and the cytokine profile of circulating lymphocytes in humans. METHODS: Allergic asthmatic patients and healthy controls were evaluated for perceived level of stress, demographic and lung function data. Whole blood cells were obtained and stimulated by mitogen to assess intracellular IL-4, IFN-gamma and TNF-alpha by flow cytometry. Neurotrophins nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) were measured in serum. RESULTS: Asthmatic patients showed significantly higher percentages of TNF-alpha-producing T cells than healthy controls. Only in asthmatic patients was stress perception correlated with percentages of TNF-alpha-producing T cells and serum BDNF levels, while forced expiratory volume in 1 s (% predicted) was negatively correlated to BDNF. CONCLUSION: The results of our study support the hypothesis that stress deteriorates bronchial asthma by inducing a pro-inflammatory cytokine profile in allergic asthmatics. Stress management might provide a supplement therapy of allergic asthma.
机译:背景:哮喘是一种由气道炎症,气道高反应性增加和气道阻塞发作所定义的慢性疾病。尽管有大量的临床和实验数据表明,压力可能会使哮喘恶化,但是,将压力与哮喘联系起来的机制尚不清楚。通过诱导促炎性细胞因子环境,压力可增强支气管哮喘的气道炎症。因此,我们研究了人的应激感知与循环淋巴细胞的细胞因子谱的相关性。方法:对过敏性哮喘患者和健康对照者的压力,人口统计学和肺功能数据的感知水平进行了评估。获得全血细胞并用促细胞分裂剂刺激以通过流式细胞术评估细胞内IL-4,IFN-γ和TNF-α。在血清中测量神经营养蛋白神经生长因子(NGF)和脑源性神经营养因子(BDNF)。结果:哮喘患者的TNF-α产生T细胞百分比明显高于健康人。仅在哮喘患者中,压力感知与产生TNF-α的T细胞和血清BDNF水平的百分比相关,而在1 s内的强制呼气量(预测的百分比)与BDNF负相关。结论:我们的研究结果支持这样的假设,即压力通过诱导过敏性哮喘患者的促炎性细胞因子谱恶化了支气管哮喘。压力管理可能会提供过敏性哮喘的补充疗法。

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