Interleukin-6 and interleukin-8 blood levels' poor association with the severity and clinical profile of ex-smokers with COPD

被引:30
作者
de Moraes, Maria Rosedalia [1 ]
da Costa, Adeliane Castro [2 ]
Correa, Krislainy de Sousa [2 ]
Junqueira-Kipnis, Ana Paula [2 ]
Rabahi, Marcelo Fouad [3 ]
机构
[1] Univ Fed Goias, BR-74110030 Goiania, Go, Brazil
[2] Univ Fed Goias, Inst Trop Pathol & Publ Hlth, BR-74110030 Goiania, Go, Brazil
[3] Univ Fed Goias, Fac Med, BR-74110030 Goiania, Go, Brazil
来源
INTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 2014年 / 9卷
关键词
COPD; interleukin-6; interleukin-8; C-reactive protein; OBSTRUCTIVE PULMONARY-DISEASE; AIR-FLOW OBSTRUCTION; C-REACTIVE PROTEIN; SYSTEMIC INFLAMMATION; COMORBIDITIES; BIOMARKERS; MECHANISMS; MORTALITY; SMOKING; MARKERS;
D O I
10.2147/COPD.S64135
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
Background: The role of interleukins in the severity and clinical profile of chronic obstructive pulmonary disease (COPD) is not known, but evidence supports the contribution of systemic inflammation to disease pathophysiology. This study evaluated the relationship of serum biomarkers to the severity and clinical parameters of COPD. Methods and findings: Serum levels Of high-sensitivity C-reactive protein, interleukin-6 (IL-6), and interleukin-8 (IL-8) Were measured in 50 patients with. stable COPT) and in 16 controls. The levels of these biomarkers were compared with parameters of severity, such as the grading of flow obstruction using the recommendations of the Global initiative for chronic Obstructive Lung Disease, the BMI (body mass index), obstruction, dyspnea, exercise capacity (health index) index, the number of exacerbations within the last year, and peripheral oxygen saturation after the six-minute walk test, and with clinical parameters, such as bronchitis and non-bronchitis phenotypes, the number of associated comorbidities, and the smoking burden. COPD patients exhibited higher levels of IL-6 and 1L-8 compared to the control group. Higher levels of IL-6 occurred in COPD groups with body mass index <21 kg/m(2), with more than two exacerbations in the past year, with a higher smoking burden., and with bronchitis. The increase in serum IL-8 was found only in the group with the highest number of exacerbations within the previous year Conclusion: Increased IL-6 was mainly associated with smoking burden, in patients who had smoked for More than 30 pack-years and exhibited a bronchitis phenotype. No direct association was observed for both IL-6 and IL-8 blood levels with the severity of COPD in ex-smokers.
引用
收藏
页码:735 / 743
页数:9
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