Systemic inflammation in chronic obstructive pulmonary disease: a population-based study.
Systemic inflammation in chronic obstructive pulmonary disease: a population-based study.
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DOI:
10.1186/1465-9921-11-63
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发表时间:
2010-05-25
影响因子:
5.8
通讯作者:
EPI-SCAN Steering Committee
中科院分区:
文献类型:
--
作者:
Garcia-Rio F;Miravitlles M;Soriano JB;Muñoz L;Duran-Tauleria E;Sánchez G;Sobradillo V;Ancochea J;EPI-SCAN Steering Committee
Elevated circulating levels of several inflammatory biomarkers have been described in selected patient populations with COPD, although less is known about their population-based distribution. The aims of this study were to compare the levels of several systemic biomarkers between stable COPD patients and healthy subjects from a population-based sample, and to assess their distribution according to clinical variables. This is a cross-sectional study design of participants in the EPI-SCAN study (40-80 years of age). Subjects with any other condition associated with an inflammatory process were excluded. COPD was defined as a post-bronchodilator FEV1/FVC < 0.70. The reference group was made of non-COPD subjects without respiratory symptoms, associated diseases or prescription of medication. Subjects were evaluated with quality-of-life questionnaires, spirometry and 6-minute walk tests. Serum C-reactive protein (CRP), tumor necrosis factor (TNF)-α, interleukins (IL-6 and IL-8), alpha1-antitrypsin, fibrinogen, albumin and nitrites/nitrates (NOx) were measured. We compared 324 COPD patients and 110 reference subjects. After adjusting for gender, age, BMI and tobacco consumption, COPD patients showed higher levels of CRP (0.477 ± 0.023 vs. 0.376 ± 0.041 log mg/L, p = 0.049), TNF-α (13.12 ± 0.59 vs. 10.47 ± 1.06 pg/mL, p = 0.033), IL-8 (7.56 ± 0.63 vs. 3.57 ± 1.13 pg/ml; p = 0.033) and NOx (1.42 ± 0.01 vs. 1.36 ± 0.02 log nmol/l; p = 0.048) than controls. In COPD patients, serum concentrations of some biomarkers were related to severity and their exercise tolerance was related to serum concentrations of CRP, IL-6, IL-8, fibrinogen and albumin. Our results provide population-based evidence that COPD is independently associated with low-grade systemic inflammation, with a different inflammatory pattern than that observed in healthy subjects.
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影响因子:
10
作者:
Broekhuizen, R;Wouters, EFM;Schols, AMWJ
通讯作者:
Schols, AMWJ
DOI:
10.1164/ajrccm.153.1.8542131
发表时间:
1996-01-01
影响因子:
24.7
作者:
Maltais, F;Simard, AA;Janvier, R
通讯作者:
Janvier, R
影响因子:
3.2
作者:
Franciosi, LG;Page, CP;Della Pasqua, OE
通讯作者:
Della Pasqua, OE
影响因子:
10
作者:
Pinto-Plata, VM;Müllerova, H;Celli, BR
通讯作者:
Celli, BR
DOI:
10.1164/ajrccm.154.4.8887607
发表时间:
1996-10-01
影响因子:
24.7
作者:
Rahman, I;Morrison, D;MacNee, W
通讯作者:
MacNee, W