ANOVA	one-way analysis of variance
AFM	atomic force microscope
AUC	area under the drug concentration-time curve
BA	bioavailability
Caco-2	human epithelial colorectal adenocarcinoma cell line
CavME	caveolae-dependent endocytosis
CME	clathrin-dependent endocytosis
COX	cyclooxygenase
DMEM	Dulbecco’s Modified Eagle Medium
DMSO	dimethyl sulfoxide
HPβCD	2-hydroxypropyl-β-cyclodextrin
DDS	drug delivery systems
IND-MPs	oral formulation containing indomethacin microparticles
IND-NPs	oral formulation containing indomethacin nanoparticles
IND-solution	liquid indomethacin
MP	macropinocytosis
MC	methylcellulose
NO	nitric oxide
NSAID	non-steroidal anti-inflammatory drug
PG	prostaglandin
S.D.	standard deviation
S.E.	standard error
TER	transepithelial electrical resistance