Article (Scientific journals)
Mannose-binding lectin protein and its association to clinical outcomes in COPD: a longitudinal study.
Mandal, Jyotshna; Malla, Bijaya; Steffensen, Rudi et al.
2015In Respiratory Research, 16, p. 150
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Keywords :
Lung function; Haplotypes; Exacerbation; Survival rate
Abstract :
[en] BACKGROUND: Functional deficiency of mannose-binding lectin (MBL) may contribute to the pathogenesis of chronic obstructive pulmonary disease. We hypothesized that specific MBL2 gene polymorphisms and circulating MBL protein levels are associated with clinically relevant outcomes in the Predicting Outcome using systemic Markers In Severe Exacerbations of COPD PROMISE-COPD cohort. METHODS: We followed 277 patients with stable COPD GOLD stage II-IV COPD over a median period of 733 days (IQR 641-767) taking survival as the primary outcome parameter. Patients were dichotomized as frequent (>/= 2 AECOPD/year) or infrequent exacerbators. Serum MBL levels and single nucleotide polymorphisms of the MBL2 gene were assessed at baseline. RESULTS: The MBL2-HYPD haplotype was significantly more prevalent in frequent exacerbators (OR: 3.33; 95% CI, 1.24-7.14, p = 0.01). The median serum MBL concentration was similar in frequent (607 ng/ml, [IQR; 363.0-896.0 ng/ml]) and infrequent exacerbators (615 ng/ml, [IQR; 371.0-942.0 ng/ml]). Serum MBL was not associated with lung function characteristics or bacterial colonization in sputum. However, high serum MBL at stable state was associated with better survival compared to low MBL (p = 0.046, log rank test). CONCLUSIONS: In COPD, the HYPD haplotype of MBL2 gene is associated with frequent exacerbations and high serum MBL is linked to increased survival. The PROMISE-COPD study was registered at www.controlled-trials.com under the identifier ISRCTN99586989.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Mandal, Jyotshna
Malla, Bijaya
Steffensen, Rudi
Costa, Luigi
Egli, Adrian
Trendelenburg, Marten
Blasi, Francesco
Kostikas, Kostantinos
Welte, Tobias
Torres, Antoni
LOUIS, Renaud ;  Centre Hospitalier Universitaire de Liège - CHU > Service de pneumologie - allergologie
Boersma, Wim
Milenkovic, Branislava
Aerts, Joachim
Rohde, Gernot G. U.
Lacoma, Alicia
Rentsch, Katharina
Roth, Michael
Tamm, Michael
Stolz, Daiana
More authors (10 more) Less
Language :
English
Title :
Mannose-binding lectin protein and its association to clinical outcomes in COPD: a longitudinal study.
Publication date :
18 December 2015
Journal title :
Respiratory Research
ISSN :
1465-9921
eISSN :
1465-993X
Publisher :
BioMed Central, United Kingdom
Volume :
16
Pages :
150
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 May 2016

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