摘要
目的探讨不同程度脏腑虚损哮喘患者肺功能、血浆左旋精氨酸(L-Arg)及不对称二甲基精氨酸(ADMA)的水平。方法将122例支气管哮喘急性发作期患者作为哮喘组,其中肺气虚者47例、肺脾气虚者39例、肺脾肾虚者36例,并将44例健康正常人作为正常对照组。采用高效液相联合质谱法检测所有研究对象血浆L-Arg及ADMA水平,并对哮喘患者进行肺功能测定。结果哮喘组血浆L-Arg水平及L-Arg/ADMA比值均低于正常对照组(均P <0. 05)。各脏腑虚损组的血浆L-Arg水平、L-Arg/ADMA比值亦均低于正常对照组(均P <0. 05),但不同脏腑虚损组间上述指标差异无统计学意义(均P> 0. 05)。肺气虚组、肺脾气虚组、肺脾肾虚组患者1 s用力呼气容积、1 s用力呼气容积/用力肺活量的比值、呼气流量峰值均依次降低(均P <0. 05)。结论哮喘患者机体均存在精氨酸代谢紊乱,这可能是引起哮喘患者线粒体呼吸链损伤的主要原因,但不同程度脏腑虚损哮喘患者精氨酸代谢水平无差异。哮喘患者肺功能变化与脏腑虚损发展趋势具有一致性。
Objective To explore the lung function and plasma L-arginine( L-Arg) and asymmetric dimethylarginine( ADMA) levels in asthmatic patients with different degrees of zang-fu viscera deficiency. Methods A total of122 patients with acute attack of bronchial asthma were selected as asthma group,including 47 patients with lung qi-deficiency,39 patients with lung and spleen qi-deficiency,and 36 patients with lung,spleen and kidney qi-deficiency,moreover,another healthy individuals were enrolled as normal control group. Plasma L-Arg and ADMA levels of all the subjects were detected by high performance liquid chromatography combined with mass spectrometry,and lung function detection was performed in asthmatic patients. Results The plasma L-Arg level and L-Arg/ADMA ratio in the asthma group were lower than those in the normal control group( all P < 0. 05). The plasma L-Arg level and L-Arg/ADMA ratio in each viscera deficiency group were also lower than those in the normal control group( all P < 0. 05),but no statistically significant differences were found in the indices above among various zang-fu viscera deficiency groups( all P > 0. 05). Forced expiratory volume in one second,ratio of forced expiratory volume in one second to forced vital capacity,and peak expiratory flow decreased in the order of the lung qi-deficiency group,the lung and spleen qi-deficiency group and the lung,spleen and kidney qi-deficiency group( all P < 0. 05). Conclusion Arginine metabolism disorder exists in asthmatic patients,which may be a primary cause leading to mitochondrial respiratory chain injury in asthmatic patients,but there was no significant difference in arginine metabolism level among asthmatic patients with different degrees of zang-fu viscera deficiency. Changes in lung function are consistent with developmental trend of zang-fu viscera deficiency in asthmatic patients.
引文
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