title: Pharmacokinetics of mirodenafil and its two metabolites, SK3541 and SK3544, after intravenous and oral administration of mirodenafil to streptozotocin-induced diabetes mellitus rats.
abstract: The area under the curve (AUC) of mirodenafil after intravenous administration in diabetes mellitus induced by streptozotocin (DMIS) rats was significantly smaller (by 28.0 %) than the control value, and the AUC(SK3541)/AUC(mirodenafil) ratio was significantly greater (by 130 %) in DMIS rats. This may be explained by the significantly faster hepatic CL(int) of mirodenafil, owing to increased hepatic CYP1A, CYP2B1/2, CYP2D, and CYP3A expression, and a faster hepatic blood flow rate, compared with control values. The AUC of mirodenafil after oral administration was comparable between DMIS and control rats, possibly because of the comparable intestinal CL(int), which may be attributable to increased CYP1A2 expression and decreased CYP2D expression in the intestines of DMIS rats.
authors.affiliation: College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea.
authors.forename: Y S
authors.initials: YS
authors.lastname: Lee
authors.forename: Y H
authors.initials: YH
authors.lastname: Choi
authors.forename: T K
authors.initials: TK
authors.lastname: Kim
authors.forename: K H
authors.initials: KH
authors.lastname: Ryu
authors.forename: B-Y
authors.initials: BY
authors.lastname: Lee
authors.forename: M G
authors.initials: MG
authors.lastname: Lee
mesh_terms: D000284:Administration, Oral; D000818:Animals; D019540:Area Under Curve; D048909:Diabetes Complications / Q000188:drug therapy; D003921:Diabetes Mellitus, Experimental / Q000378:metabolism*; D007172:Erectile Dysfunction / Q000188:drug therapy / Q000209:etiology; D007262:Infusions, Intravenous; D008297:Male; D011744:Pyrimidinones / Q000008:administration & dosage / Q000378:metabolism / Q000493:pharmacokinetics*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013311:Streptozocin; D013449:Sulfonamides / Q000008:administration & dosage / Q000378:metabolism / Q000493:pharmacokinetics*
chemical_list: C548450:2-(4-(3-(5-ethyl-7-n-propyl-3,5-dihydro-4H-pyrrolo(3,2-d)pyrimidin-4-onyl)-4-n-propoxyphenyl)sulfonylpiperazin-1-yl)ethyl hydrogen sulfate; C528397:N-dehydroxyethylmirodenafil; D011744:Pyrimidinones; D013449:Sulfonamides; C528396:mirodenafil; D013311:Streptozocin