检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]第四军医大学西京医院
出 处:《中华结核和呼吸杂志》1995年第3期143-145,共3页Chinese Journal of Tuberculosis and Respiratory Diseases
摘 要:检测夜间哮喘患者昼夜肺功能和气道反应性变化及血清嗜酸阳离子蛋白(ECP)浓度改变,探讨嗜酸细胞与夜间哮喘的关系。结果表明,夜间哮喘患者最大呼气流量(PEF)在4时左右降至最低;4时时乙酰甲胆碱-PC_(20)值明显低于16时,血清ECP浓度在4时升至最高。4时和16时的PEF下降百分比与两时间点血清ECP浓度变化呈显著相关。提示:夜间嗜酸细胞释放ECP增多可能是夜间哮喘患者肺功能周期性改变的重要因素之一。e had investigated the serum ECP and peak expi-ratory flow rate in 20 patients with nocturnal asthma.Changes of PEF were measured in every 2 hours aroundthe whole day, and the blood samples were obtained at4:00 and 16:00 to measure the serum ECP level and theperipheral Eo numbers. In addition,10 asthmatics aswell as normal subjects received methacholine challengeat 4:00 and 16:00.It was found that the PEF reachedthe fowest point at 4:00 and obviously less than that at16:00(187.50±120.31 L/min vs 313.00 ± 108.14L/min,P<0.o5),that the airway reactivity at 4 : 00was significantly higher than at 16 : 00(P<0.05)andthe difference of MCH-PC_(20) between the two time pointswas 0. 34±0.31mg/ml,that the serum ECP Ievel at 4:00 was obviously higher than that at 16:00(11.14±7.40 μg/ml vs 5.49±4. 12 μg/ml,P<0. 05). Thechange rate of PEF markedly related to the change ofserum ECP between the two time points (r=0.61, P<0. 05);The findings suggested that the activation of Eoand its release of ECP might be effect of the circadian-rhythmic change of pulmonary functions in nocturnalasthma.
分 类 号:R562.250.4[医药卫生—呼吸系统]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117