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Katsuhiro Ohyama

Observed names: K. Ohyama, KATSUHIRO OHYAMA, OHYAMA, Katsuhiro
Observed institutions: Kanazawa University, Toho University, Tokyo University of Pharmacy and Life Sciences, Central Institute for Experimental Animals, Nara Prefecture General Medical Center, Showa Pharmaceutical University
ORCID: 0000-0001-6307-577X
Observed ORCID: 0000-0001-6307-577X
OpenAlex ID: A5031976223
Roles of NADPH-P450 Reductase and Apo- and Holo-Cytochrome b5 on Xenobiotic Oxidations Catalyzed by 12 Recombinant Human Cytochrome P450s Expressed in Membranes of Escherichia coli
2002 · Hiroshi Yamazaki, Mami Nakamura, et al. · Protein Expression and Purification · 233
Inhibitory effects of amiodarone and its N ‐deethylated metabolite on human cytochrome P450 activities: Prediction of in vivo drug interactions
2000 · K. Ohyama, M. Nakajima, et al. · British Journal of Clinical Pharmacology · 190
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A Significant Role of Human Cytochrome P450 2C8 in Amiodarone N-Deethylation: An Approach to Predict the Contribution with Relative Activity Factor
2000 · Katsuhiro Ohyama, Miki Nakajima, et al. · Drug Metabolism and Disposition · 166
Cytochrome P450-depedent Drug Oxidation Activity of Liver Microsomes from Microminipigs, A Possible New Animal Model for Humans in Non-clinical Studies
2009 · Norie Murayama, Naoki Kaneko, et al. · Drug Metabolism and Pharmacokinetics · 47
Inhibitory Effects of Azelastine and Its Metabolites on Drug Oxidation Catalyzed by Human Cytochrome P-450 Enzymes
1999 · Miki Nakajima, Katsuhiro Ohyama, et al. · Drug Metabolism and Disposition · 30
Evaluation of the Association between Topical Prostaglandin F2α Analogs and Asthma Using the JADER Database: Comparison with β-Blockers
2018 · Katsuhiro Ohyama, Munetoshi Sugiura · YAKUGAKU ZASSHI · 18
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High hepatic and plasma exposures of atorvastatin in subjects harboring impaired cytochrome P450 3A4∗16 modeled after virtual administrations and possibly associated with statin intolerance found in the Japanese adverse drug event report database
2022 · Koichiro Adachi, Katsuhiro Ohyama, et al. · Drug Metabolism and Pharmacokinetics · 16
Pharmacovigilance study of the association between dipeptidyl peptidase–4 inhibitors and angioedema using the FDA Adverse Event Reporting System (FAERS)
2022 · Katsuhiro Ohyama, Junichiro Shindo, et al. · Scientific Reports · 16
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Drug interactions of diclofenac and its oxidative metabolite with human liver microsomal cytochrome P450 1A2-dependent drug oxidation
2013 · Katsuhiro Ohyama, Norie Murayama, et al. · Xenobiotica · 16
Association between anaphylaxis and anti-influenza drug use: An analysis of the Japanese Adverse Drug Event Report database
2021 · Hiroyuki Tanaka, Katsuhiro Ohyama, et al. · Drug Discoveries & Therapeutics · 13
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Pharmacokinetic Models Scaled Up from Humanized Liver Mouse Data Can Account for Drug Monitoring Results of Atomoxetine and Its 4-Hydroxylated and N-Demethylated Metabolites in Pediatric Patients Genotyped for Cytochrome P450 2D6
2023 · Makiko Shimizu, Shotaro Uehara, et al. · Drug Metabolism and Disposition · 11
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Plasma and Hepatic Exposures of Celecoxib and Diclofenac Prescribed Alone in Patients with Cytochrome P450 2C9*3 Modeled after Virtual Oral Administrations and Likely Associated with Adverse Drug Events Reported in a Japanese Database
2023 · Koichiro Adachi, Katsuhiro Ohyama, et al. · Biological and Pharmaceutical Bulletin · 11
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Blood Pressure Elevation Associated with Topical Prostaglandin F2α Analogs: An Analysis of the Different Spontaneous Adverse Event Report Databases
2017 · Katsuhiro Ohyama, Haruna Kawakami, et al. · Biological and Pharmaceutical Bulletin · 10
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Modeled Hepatic/Plasma Exposures of Fluvastatin Prescribed Alone in Subjects with Impaired Cytochrome P450 2C9*3 as One of Possible Determinant Factors Likely Associated with Hepatic Toxicity Reported in a Japanese Adverse Event Database
2024 · Koichiro Adachi, Katsuhiro Ohyama, et al. · Biological and Pharmaceutical Bulletin · 7
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Time-to-onset Analysis of Rhabdomyolysis due to Different Proton Pump Inhibitors Using a Pharmacovigilance Database
2024 · KATSUHIRO OHYAMA, MEGUMI IIDA, et al. · In Vivo · 7
Association of Torsade de Pointes and QT Prolongation With Antifungal Triazoles: Analysis Using a Pharmacovigilance Database
2023 · KATSUHIRO OHYAMA, SHOTA AKIYAMA, et al. · In Vivo · 6
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Inverse association between DPP-4 inhibitor use and fracture in older adults: A disproportionality analysis of the FAERS and JADER
2022 · Katsuhiro Ohyama, Takumi Okamoto, et al. · International Journal of Clinical Pharmacology and Therapeutics · 6
Effect of Concomitant Drug Use on the Onset and Exacerbation of Diabetes Mellitus in Everolimus-Treated Cancer
2022 · Katsuhiro Ohyama, Hiroyuki Tanaka, et al. · Journal of Pharmacy & Pharmaceutical Sciences · 6
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Association between Selective Beta-adrenergic Drugs and Blood Pressure Elevation: Data Mining of the Japanese Adverse Drug Event Report (JADER) Database
2016 · Katsuhiro Ohyama, Michiko Inoue · YAKUGAKU ZASSHI · 6
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Association of gynecomastia with antidiabetic medications in older adults: Data mining from different national pharmacovigilance databases
2021 · Katsuhiro Ohyama, Hiroyuki Tanaka, et al. · International Journal of Clinical Pharmacology and Therapeutics · 5
Analysis of the Time-To-Onset and Factors Affecting Clinical Outcomes of Immune Reconstitution Inflammatory Syndrome in People Living with HIV Using Data from the Japanese Spontaneous Reporting Database
2021 · Hiroyuki Tanaka, Tatsuhiko Wada, et al. · Journal of Pharmacy & Pharmaceutical Sciences · 5
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Psoriasis associated with ACE inhibitors: an analysis of the FAERS database
2020 · K. Ohyama, H. Arai, et al. · Die Pharmazie · 5
Evaluation of syncope association with α1-adrenoceptor blockers in males using the FAERS database: impact of concomitant hypertension
2019 · K. Ohyama, Y. Hori, et al. · Die Pharmazie · 5
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Time-to-onset of diabetes with everolimus use: analysis of a spontaneous reporting system database
2021 · K. Ohyama, K. Hirakawa, et al. · Die Pharmazie · 4
Time-to-Onset Analysis of Rhabdomyolysis Associated With Selective Serotonin and Serotonin-Noradrenaline Reuptake Inhibitors Using the Japanese Pharmacovigilance Database
2025 · KATSUHIRO OHYAMA, YUTO OKUHARA, et al. · In Vivo · 3
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Works count: 38
Citation count: 855
H-index: 11
I10-index: 13
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