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Changes of leukotriene B4 in induced sputum and plasma of patients with chronic obstructive pulmonary disease and the effects of theophylline
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES
- Issue:
- 7
- DOI:
- 10.3760/j:issn:1001-0939.2005.07.005
- Key Word:
- 肺疾病,慢性阻塞性;气道炎症;诱导痰;白三烯B4;茶碱
Abstract： 目的探讨白三烯B4(LTB4)在慢性阻塞性肺疾病(COPD)患者诱导痰和血浆的变化以及茶碱对其的影响.方法这个试验是前瞻性随机对照非盲法研究.40例COPD稳定期患者(C组),随机分为CA组(口服茶碱0.2 g/次,每天2次,1个月)与CB组(不用任何茶碱类药物).15名健康非吸烟者为正常对照组(H组).评定各组基线水平以及C组随访1个月后的临床症状与生活质量评分,测定肺功能指标、诱导痰细胞计数与分类,并用酶联免疫吸附测定(ELISA)与酶免疫试验(EIA)方法分别测定诱导痰和血浆白细胞介素8(IL-8)与LTB4浓度.结果 (1)C组诱导痰及血浆的LTB4水平分别为(794±305)pg/mg·pro、(5 219±1 185)ng/L,均显著高于H组[(155±64)pg/mg·pro、(2 283±489)ng/L,P均＜0.05].(2)诱导痰的LTB4水平与中性粒细胞、IL-8水平呈显著正相关(r分别为0.453、0.364,P均＜0.05).(3)CA组在茶碱治疗前、后诱导痰LTB4水平分别为(812±592)、(657±459)pg/mg·pro,血浆水平为(5 422±935)、(4 589±1 057)ng/L;CB组试验前、后诱导痰LTB4水平分别为(776±227)、(860±194)pg/mg·pro,血浆水平为(5 074±1 850)、(6 063±2 450)ng/L;这两组治疗前、后比较差异均无统计学意义(P均＞0.05).结论 COPD患者LTB4水平增高,参与气道炎症过程.茶碱的治疗不能显著降低诱导痰与血浆的LTB4水平.
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