Search Results - "Naoyuki NAKADA"
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Applications of MALDI mass spectrometry imaging for pharmacokinetic studies during drug development
Published in Drug metabolism and pharmacokinetics (01-08-2019)“…The concentration and distribution of a drug or its metabolites in tissues are key factors for understanding drug efficacy or toxicity. Conventional…”
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2
Imaging Mass Spectrometry (IMS) for drug discovery and development survey: Results on methods, applications and regulatory compliance
Published in Drug metabolism and pharmacokinetics (01-04-2022)“…Imaging mass spectrometry (IMS) is increasingly used for drug discovery and development to understand target enagement, tissue distribution, drug toxicity, and…”
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A phase I, open-label, single-dose micro tracer mass balance study of 14C-labeled ASP7991 in healthy Japanese male subjects using accelerator mass spectrometry
Published in Drug metabolism and pharmacokinetics (01-04-2018)“…ASP7991 is a calcimimetic that acts on the calcium-sensing receptor on parathyroid cell membranes and suppresses parathyroid hormone (PTH) secretion in the…”
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A phase I, open-label, single-dose micro tracer mass balance study of 14 C-labeled ASP7991 in healthy Japanese male subjects using accelerator mass spectrometry
Published in Drug metabolism and pharmacokinetics (01-04-2018)“…ASP7991 is a calcimimetic that acts on the calcium-sensing receptor on parathyroid cell membranes and suppresses parathyroid hormone (PTH) secretion in the…”
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5
Human mass balance, metabolite profile and identification of metabolic enzymes of [14C]ASP015K, a novel oral janus kinase inhibitor
Published in Xenobiotica (03-10-2015)“…1. The human mass balance of 14 C-labelled ASP015K ([ 14 C]ASP015K), an orally bioavailable Janus kinase (JAK) inhibitor, was characterized in six healthy male…”
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Assessment of Chimeric Mice with Humanized Liver as a Tool for Predicting Circulating Human Metabolites
Published in Drug metabolism and pharmacokinetics (01-01-2010)“…The ability to predict circulating human metabolites of a candidate drug before first-in-man studies are carried out would provide a clear advantage in drug…”
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7
Population estimation of the effects of cytochrome P450 2C9 and 2C19 polymorphisms on phenobarbital clearance in japanese
Published in Therapeutic drug monitoring (01-02-2007)“…A nonlinear mixed-effect modeling (NONMEM) program was used to evaluate the effects of cytochrome P450 (CYP) 2C9 and CYP2C19 polymorphisms on the phenobarbital…”
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Evaluation of the Utility of Chimeric Mice with Humanized Livers for the Characterization and Profiling of the Metabolites of a Selective Inhibitor (YM543) of the Sodium-Glucose Cotransporter 2
Published in Pharmaceutical research (01-04-2017)“…Purpose YM543 is a novel selective inhibitor of the sodium-glucose cotransporter 2. The objectives of the current study were to evaluate the utility of mice…”
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9
Cell tracking of chromium‐labeled mesenchymal stem cells using laser ablation inductively coupled plasma imaging mass spectrometry
Published in Rapid communications in mass spectrometry (30-10-2019)“…Rationale Mesenchymal stem cells (MSCs) are widely used in regenerative medicine research. Evaluating the biodistribution of MSCs is important for determining…”
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10
Interactive Effect of Paraoxonase-1 Q192R Polymorphism and Smoking History on the Lung Function Decline in Grain Workers
Published in Annals of epidemiology (01-04-2008)“…Purpose This retrospective longitudinal study investigated the association between the Q192R polymorphism of the high-density lipoprotein–associated…”
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11
GaN on Si Substrate with AlGaN/AlN Intermediate Layer
Published in Japanese Journal of Applied Physics (01-05-1999)“…A single crystal GaN thin film was successfully grown on a Si (111) substrate by means of atmospheric pressure metalorganic chemical vapor deposition. Though…”
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12
Phenotype-genotype analysis of CYP1A2 in Japanese patients receiving oral theophylline therapy
Published in European journal of clinical pharmacology (01-01-2006)“…To clarify the association between the cytochrome P450 (CYP) 1A2 genotype with the CYP1A2 phenotype and to search for the CYP1A2*1K haplotype, which has been…”
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13
Investigation of Metabolite Profile of YM758, a Novel If Channel Inhibitor
Published in Drugs in R&D (01-06-2016)“…Background YM758 monophosphate is a novel If channel inhibitor that has an inhibitory action for If current and shows a strong and specific activity,…”
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14
Suppression of Crack Generation in GaN/AlGaN Distributed Bragg Reflector on Sapphire by the Insertion of GaN/AlGaN Superlattice Grown by Metal-Organic Chemical Vapor Deposition
Published in Japanese Journal of Applied Physics (15-02-2003)“…GaN/AlGaN distributed Bragg reflectors (DBRs) have been grown on sapphire by MOCVD. A GaN/AlGaN superlattice (SL) was introduced prior to the growth of the DBR…”
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15
Identification and characterization of metabolites of ASP015K, a novel oral Janus kinase inhibitor, in rats, chimeric mice with humanized liver, and humans
Published in Xenobiotica (02-09-2015)“…1. Here, we elucidated the structure of metabolites of novel oral Janus kinase inhibitor ASP015K in rats and humans and evaluated the predictability of human…”
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MOCVD growth of high reflective GaN/AlGaN distributed Bragg reflectors
Published in Journal of crystal growth (01-04-2002)“…GaN/AlGaN distributed Bragg reflectors have been grown by low-pressure metal organic chemical vapor deposition. Those structures were fabricated on the…”
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Correlation between Electrical and Surface Properties of n-GaN on Sapphire Grown by Metal-Organic Chemical Vapor Deposition
Published in Japanese Journal of Applied Physics (2003)“…Lightly doped n-GaN epilayers were grown by MOCVD on sapphire substrates. The grown n-GaN epilayers were characterized using AFM, XRD, photoluminescence and…”
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18
Assessment of Chimeric Mice with Humanized Liver as a Tool for Predicting Circulating Human Metabolites
Published in DRUG METABOLISM AND PHARMACOKINETICS (2010)“…Summary: The ability to predict circulating human metabolites of a candidate drug before first-in-man studies are carried out would provide a clear advantage…”
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19
Suppression of GaInN/GaN Multi-Quantum-Well Decomposition during Growth of Light-Emitting-Diode Structure
Published in Japanese Journal of Applied Physics (01-11-2001)“…Growth of GaN-based light-emitting-diode (LED) structures with GaInN/GaN multi-quantum wells (MQWs) has been explored by metalorganic chemical vapor…”
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In vitro/in vivo investigations to examine the gender differences in the pharmacokinetics of novel oral Janus kinase (JAK) inhibitor ASP015K and sulfate metabolite M2 in rats
Published in Xenobiotica (01-06-2015)“…Abstract 1. Although marked gender differences have been reported for the exposure level of the sulfate metabolite M2 of ASP015K in rats, no such differences…”
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