UDCA	ursodeoxycholate
GUDCA	glycine ursodeoxycholate
TUDCA	taurousodeoxycholate
EE	17α-ethinylestradiol
Mrp2/MRP2	multidrug resistance-associated protein 2
MTX	methotrexate
GSH	reduced gluthathione
Nrf2	nuclear factor-E2-released factor 2
Ntcp	Na+-taurocholate co-transporting polypeptide
Oat	organic anion transporter
Oatp	organic anion transporting polypeptide
Bsep	bile salt export pump
ALT	alanine aminotransferase
AST	aspartate aminotransferase
PG	propylene glycol
CMC	carboxymethyl cellulose
BUN	blood urea nitrogen
PBS	phosphate buffered saline
LC-MS/MS	liquid chromatography tandem-mass spectrometry
RT-PCR	real-time reverse-transcription polymerase chain reaction
Hprt	hypoxanthine phosphoribosyltransferase
IS	internal standard
SDS-PAGE	sodium dodecyl sulfate-polyacrylamide gel electrophoresis
β-NAD	β-nicotinamide adenine dinucleotide
3α-HSD	3α-hydroxysteroid dehydrogenase
EDTA	ethylenediaminetetraacetic acid
AUC	area under the plasma concentration–time curve
CLtotal	total clearance
CLurine	urinary clearance
CLbile	biliary clearance
GFR	glomerular filtration rate
CLcr	creatinine clearance
CLGF	glomerular filtration clearance
CLup,liver	liver uptake clearance
CLup,kidney	kidney uptake clearance
CLexc,bile	biliary excretion clearance
CLexc,urine	urinary excretion clearance