COVID-19	Coronavirus disease
PF	Pulmonary fibrosis
FDA	U.S. Food and Drug Administration
Pir	Pirfenidone
Nin	Nintedanib
TRF	Tocotrienol-rich fractions
Carotene	Natural Mixed-Carotene Complex 20% Oil Concentrate
TGF-β1	Transforming growth factor beta 1
IL-6	Interleukin-6
MPO	Myeloperoxidase
IL-1β	Interleukin-1β
TNFα	Tumor necrosis factor-alpha
CAT	Catalase
MDA	Malondialdehyde
GSH	Glutathione
NO	Nitric oxide
SOD	Superoxide dismutase
HE	Hematoxylin-eosin
PBS	Phosphate-buffered saline
SA/HRP	Streptomyces ovalbumin working solution
DAB	Diaminobenzidine
WB	Western blot
ECL	Enhanced chemiluminescence
PI3K	Phosphatidylinositol 3-kinase
AKT	Protein kinase B, PKB
mTOR	Mammalian target of rapamycin
IFN-γ	Interferonγ
IL-13	Interleukin-13
IkBα	NF-kappa-B inhibitor alpha
Ikkβ	Inhibitor of nuclear factor kappa-B kinase
ECM	Excessive deposition of extracellular matrix