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近年来发现可以从实验动物和受试者呼出气中测得ppb水平的NO。此研究旨在确定呼出气中NO的气道内解剖部位和确定炎性疾病对NO水平可能产生的影响。 材料 对照(n=12)不吸烟健康人,27～35岁:3人曾出现下呼吸道病毒感染(2周内未用抗生素而愈);哮喘患者(n=8);不吸烟,33～45岁,均无症状。 方法 受检者经面罩平静吸气,面罩连有单向吸气活瓣,吸入气内无NO和NO_2。同时连续测定呼出气中NO。为确定呼出气中NO在鼻气道分布,使不含NO
It has been found in recent years that ppb levels of NO can be measured in exhaled breaths from experimental animals and subjects. The aim of this study was to determine the anatomical location of NO in exhaled air and to determine the possible effect of inflammatory diseases on NO levels. Materials control (n = 12) Non-smokers Healthy people, 27-35 years old: 3 people had lower respiratory tract infection (no antibiotics in 2 weeks); asthma (n = 8); no smoking, 33-45 Year old, are asymptomatic. Methods The subjects inhaled calmly through the mask, the mask was connected with one-way inhalation valve, and there was NO and NO_2 in the inhalation gas. Simultaneous determination of exhaled breath NO. To determine exhaled NO in the nasal airways, so NO