ALI	Acute lung injury
ARDS	Acute respiratory distress syndrome
BALF	Bronchoalveolar lavage fluid
BAMSE	Swedish abbreviation for Children, Allergy, Milieu, Stockholm, Epidemiology
BPD	Bronchopulmonary dysplasia
CC16	Club cell secretory protein
COPD	Chronic obstructive pulmonary disease
CS	Cigarette smoke
CRS	Children’s Respiratory Study
ECLIPSE	Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints
ECRHS	The European community respiratory health survey
FEV1	Forced expiratory volume in one second
ELISA	Enzyme-linked immunoassay
GOLD	Global Initiative for Chronic Obstructive Lung Disease
ICU	Intensive care unit
IL-1β	Interleukin-1-beta
IL6	Interleukin 6
IPF	Idiopathic pulmonary fibrosis
IQR	Interquartile range
LHS	Lung Health Study
LPS	Lipopolysaccharide
MAAS	The Manchester asthma and allergy study
MMT	Methylcyclopentadienyl manganese tricarbonyl
NF-kB	Nuclear factor-kappa B
NHPs	Non-human primates
NLR	NOD-like receptors
PaO2/FIO2	Pressure of arterial oxygen to fractional inspired oxygen
PF	Pulmonary fibrosis
rCC16	Recombinant club cell secretory protein
RSV	Respiratory syncytial virus
SAPALDIA	The Swiss study on air pollution and lung disease in adults
TCRS	The Tucson children’s respiratory study
TESAOD	Tucson epidemiological study of airway obstructive disease
TLR	Toll-like receptor
TNFα	Tumor necrosis factor-alpha
URI	Upper respiratory infections
WT	Wild type