BACKGROUND: Recent studies show that COPD patients exhibit low-grade systemic inflammation, and that plasma fibrinogen and high neutrophil counts are related to faster declines in lung function. We examined correlations between serum biomarkers and the decline of lung function in COPD patients. METHOD: Baseline levels of 9 serum biomarkers (TIMP-1, alpha1-antitrypsin, MMP-9, TNF-alpha, TGF-beta, IL-6, IL-8, neutrophil elastase and CRP), fibrinogen and white blood cell counts (WCC) were measured in 96 COPD patients. Lung function was measured at the time of blood sampling and every 3-6 months during the observation period (median 25.0 months). RESULTS: Twenty patients were rapid decliners of lung function and 53 patients were non-decliners. Neutrophil counts, serum CRP and MMP-9 were significantly higher in the rapid decliners (p<0.05). The annual change of % predicted FEV(1) was inversely correlated with MMP-9 (r=-0.288; p<0.01) and CRP (r=-0.354; p<0.005) (partial correlation coefficients adjusted for age, sex, cardiovascular disease, smoking history, and baseline % predicted FEV(1)). The remaining biomarkers were not correlated with the annual change of % predicted FEV(1). CONCLUSION: Serum CRP and MMP-9 levels were related to FEV(1) decline. These markers are good candidates as predictors for rapid decline of FEV(1) in COPD patients. Additional long-term and larger size studies of COPD patients could help determine the exact roles for these biomarkers.
BACKGROUND: Recent studies show that COPDpatients exhibit low-grade systemic inflammation, and that plasma fibrinogen and high neutrophil counts are related to faster declines in lung function. We examined correlations between serum biomarkers and the decline of lung function in COPDpatients. METHOD: Baseline levels of 9 serum biomarkers (TIMP-1, alpha1-antitrypsin, MMP-9, TNF-alpha, TGF-beta, IL-6, IL-8, neutrophil elastase and CRP), fibrinogen and white blood cell counts (WCC) were measured in 96 COPDpatients. Lung function was measured at the time of blood sampling and every 3-6 months during the observation period (median 25.0 months). RESULTS: Twenty patients were rapid decliners of lung function and 53 patients were non-decliners. Neutrophil counts, serum CRP and MMP-9 were significantly higher in the rapid decliners (p<0.05). The annual change of % predicted FEV(1) was inversely correlated with MMP-9 (r=-0.288; p<0.01) and CRP (r=-0.354; p<0.005) (partial correlation coefficients adjusted for age, sex, cardiovascular disease, smoking history, and baseline % predicted FEV(1)). The remaining biomarkers were not correlated with the annual change of % predicted FEV(1). CONCLUSION: Serum CRP and MMP-9 levels were related to FEV(1) decline. These markers are good candidates as predictors for rapid decline of FEV(1) in COPDpatients. Additional long-term and larger size studies of COPDpatients could help determine the exact roles for these biomarkers.
Authors: Catherine H Miele; Matthew R Grigsby; Trishul Siddharthan; Robert H Gilman; J Jaime Miranda; Antonio Bernabe-Ortiz; Robert A Wise; William Checkley Journal: Thorax Date: 2018-07-30 Impact factor: 9.139
Authors: Jeffrey J Atkinson; Barbara A Lutey; Yoko Suzuki; Holly M Toennies; Diane G Kelley; Dale K Kobayashi; Whitney G Ijem; Gaetan Deslee; Carla H Moore; M Eileen Jacobs; Susan H Conradi; David S Gierada; Richard A Pierce; Tomoko Betsuyaku; Robert M Senior Journal: Am J Respir Crit Care Med Date: 2010-11-05 Impact factor: 21.405
Authors: Sara Ongay; Marijke Sikma; Peter Horvatovich; Jos Hermans; Bruce E Miller; Nick H T Ten Hacken; Rainer Bischoff Journal: Chronic Obstr Pulm Dis Date: 2016-03-01
Authors: Victor Pinto-Plata; Ciro Casanova; Hana Müllerova; Juan P de Torres; Henneth Corado; Nerea Varo; Elizabeth Cordoba; Salah Zeineldine; Hildegarde Paz; Rebeca Baz; Miguel Divo; Felipe Cortopassi; Bartolome R Celli Journal: Respir Res Date: 2012-08-20
Authors: Preston E Bratcher; Nathaniel M Weathington; Heidi J Nick; Patricia L Jackson; Robert J Snelgrove; Amit Gaggar Journal: PLoS One Date: 2012-07-30 Impact factor: 3.240