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List of works by Masahiro Utoh

Age-related changes of hepatic clearances of cytochrome P450 probes, midazolam and R-/S-warfarin in combination with caffeine, omeprazole and metoprolol in cynomolgus monkeys using in vitro-in vivo correlation.

scientific article

Alprazolam as an in vivo probe for studying induction of CYP3A in cynomolgus monkeys.

scientific article published on 28 June 2010

Assessment of multiple cytochrome P450 activities in metabolically inactivated human liver microsomes and roles of P450 2C isoforms in reaction phenotyping studies

scientific article

Cytochrome P450 metabolic activities in the small intestine of cynomolgus macaques bred in Cambodia, China, and Indonesia.

scientific article

Different Roles of Human Cytochrome P450 2C9 and 3A Enzymes in Diclofenac 4'- and 5-Hydroxylations Mediated by Metabolically Inactivated Human Hepatocytes in Previously Transplanted Chimeric Mice

scientific article published on 31 December 2019

Efavirenz clearances in vitro and in vivo in six cynomolgus monkeys associated with polymorphic cytochrome P450 2C9 and simulated by individual physiologically based pharmacokinetic models

scientific article published on 13 June 2017

Evaluation of 23 Lots of Commercially Available Cryopreserved Hepatocytes for Induction Assays of Human Cytochromes P450

scientific article published on 19 February 2014

Expression profile of hepatic genes in cynomolgus macaques bred in Cambodia, China, and Indonesia: implications for cytochrome P450 genes.

scientific article

Genetic variants of CYP3A4 and CYP3A5 in cynomolgus and rhesus macaques.

scientific article published on 12 November 2009

Human plasma concentrations of cytochrome P450 probe cocktails extrapolated from pharmacokinetics in mice transplanted with human hepatocytes and from pharmacokinetics in common marmosets using physiologically based pharmacokinetic modeling.

scientific article

Human plasma concentrations of cytochrome P450 probes extrapolated from pharmacokinetics in cynomolgus monkeys using physiologically based pharmacokinetic modeling.

scientific article

Identification and characterization of CYP2B6 cDNA in cynomolgus macaques (Macaca fascicularis).

scientific article

Identification and characterization of CYP2C18 in the cynomolgus macaque (Macaca fascicularis).

scientific article published on 25 November 2009

In vivo drug interactions of the teratogen thalidomide with midazolam: heterotropic cooperativity of human cytochrome P450 in humanized TK-NOG mice.

scientific article

In vivo individual variations in pharmacokinetics of efavirenz in cynomolgus monkeys genotyped for cytochrome P450 2C9.

scientific article published on 15 July 2016

Individual Differences in Metabolic Clearance of S-Warfarin Efficiently Mediated by Polymorphic Marmoset Cytochrome P450 2C19 in Livers.

scientific article published on 20 April 2016

Monkey liver cytochrome P450 2C19 is involved in R- and S-warfarin 7-hydroxylation

scientific article published on 03 October 2012

Monkey liver cytochrome P450 2C9 is involved in caffeine 7-N-demethylation to form theophylline

scientific article published on 16 May 2013

Newly identified CYP2C93 is a functional enzyme in rhesus monkey, but not in cynomolgus monkey

scientific article

Oxidation of R- and S-omeprazole stereoselectively mediated by liver microsomal cytochrome P450 2C19 enzymes from cynomolgus monkeys and common marmosets.

scientific article published on 15 September 2016

Plasma and Hepatic Concentrations of Acetaminophen and Its Primary Conjugates after Oral Administrations Determined in Experimental Animals and Humans and Extrapolated by Pharmacokinetic Modeling

scientific article published on 12 November 2020

Pre-incubation with cyclosporine A potentiates its inhibitory effects on pitavastatin uptake mediated by recombinantly expressed cynomolgus monkey hepatic organic anion transporting polypeptide.

scientific article published on 7 September 2016

Simultaneous pharmacokinetics assessment of caffeine, warfarin, omeprazole, metoprolol, and midazolam intravenously or orally administered to Microminipigs

scientific article

Simultaneous pharmacokinetics evaluation of human cytochrome P450 probes, caffeine, warfarin, omeprazole, metoprolol and midazolam, in common marmosets (Callithrix jacchus).

scientific article

Slow R-warfarin 7-hydroxylation mediated by P450 2C19 genetic variants in cynomolgus monkeys in vivo.

scientific article

Thalidomide increases human hepatic cytochrome P450 3A enzymes by direct activation of the pregnane X receptor

scientific article published on 5 February 2014