AA	Arachidonic acid
ALP	Alkaline phosphatase
ALT	Alanine aminotransferase
AST	Aspartate aminotransferase
BALF	Bronchoalveolar lavage fluid
CCK-8	Cell counting kit-8
CSALI	Cold stress-aggravated acute lung injury
DBIL	Direct bilirubin
ESI	Electrospray ionization
H&E	Hematoxylin and eosin
IL-6	Interleukin-6
KEGG	Kyoto Encyclopedia of Genes and Genomes
lysoPC	Lysophosphatidylcholine
lysoPE	Lysophosphatidylethanolamine
LPS	Lipopolysaccharide
OPLS-DA	Orthogonal partial least squares-discriminant analysis
PC	Phosphatidylcholine
PCA	Principal component analysis
PLA2	Phospholipase A2
QC	Quality control
SAE	Star anise extract
TBIL	Total bilirubin
TCM	Traditional Chinese medicine
TGF-β	Transforming growth factor-β
TLRs	Toll-like receptors
VIP	Variable importance in the projection