Katsuhiro Ohyama

840 total citations
29 papers, 710 citations indexed

About

Katsuhiro Ohyama is a scholar working on Pharmacology, Pharmacology and Oncology. According to data from OpenAlex, Katsuhiro Ohyama has authored 29 papers receiving a total of 710 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Pharmacology, 11 papers in Pharmacology and 10 papers in Oncology. Recurrent topics in Katsuhiro Ohyama's work include Pharmacogenetics and Drug Metabolism (11 papers), Drug Transport and Resistance Mechanisms (8 papers) and Inflammatory mediators and NSAID effects (7 papers). Katsuhiro Ohyama is often cited by papers focused on Pharmacogenetics and Drug Metabolism (11 papers), Drug Transport and Resistance Mechanisms (8 papers) and Inflammatory mediators and NSAID effects (7 papers). Katsuhiro Ohyama collaborates with scholars based in Japan and United States. Katsuhiro Ohyama's co-authors include Hiroshi Yamazaki, Tsuyoshi Yokoi, Noriaki Shimada, Miki Nakajima, Mikie Suzuki, Mitsutoshi Nakajima, Tsutomu Shimada, Satoru Asahi, F. Peter Guengerich and Tomoko Komatsu and has published in prestigious journals such as Scientific Reports, British Journal of Clinical Pharmacology and Drug Metabolism and Disposition.

In The Last Decade

Katsuhiro Ohyama

27 papers receiving 693 citations

Peers

Countries citing papers authored by Katsuhiro Ohyama

Since Specialization

Citations

This map shows the geographic impact of Katsuhiro Ohyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Katsuhiro Ohyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Katsuhiro Ohyama more than expected).

Fields of papers citing papers by Katsuhiro Ohyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Katsuhiro Ohyama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Katsuhiro Ohyama. The network helps show where Katsuhiro Ohyama may publish in the future.

Co-authorship network of co-authors of Katsuhiro Ohyama

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuhiro Ohyama. A scholar is included among the top collaborators of Katsuhiro Ohyama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Katsuhiro Ohyama. Katsuhiro Ohyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Modeled Hepatic/Plasma Exposures of Fluvastatin Prescribed Alone in Subjects with Impaired Cytochrome <i>P450 2C93</i> as One of Possible Determinant Factors Likely Associated with Hepatic Toxicity Reported in a Japanese Adverse Event Database 2024 ·Biological and Pharmaceutical Bulletin* ·(unknown), Katsuhiro Ohyama, Yoïchi Tanaka, Yoshiro Saito, Makiko Shimizu, Hiroshi Yamazaki	4
2	Modeled Hepatic/Plasma Exposures of Omeprazole Prescribed Alone in Cytochrome P450 2C19 Poor Metabolizers Are Likely Associated with Hepatic Toxicity Reported in a Japanese Adverse Event Database 2024 ·Biological and Pharmaceutical Bulletin ·(unknown), Katsuhiro Ohyama, Yoïchi Tanaka, Norie Murayama, Makiko Shimizu, Yoshiro Saito, Hiroshi Yamazaki	2
3	Plasma and Hepatic Exposures of Celecoxib and Diclofenac Prescribed Alone in Patients with Cytochrome <i>P450 2C93</i> Modeled after Virtual Oral Administrations and Likely Associated with Adverse Drug Events Reported in a Japanese Database 2023 ·Biological and Pharmaceutical Bulletin* ·(unknown), Katsuhiro Ohyama, Yoïchi Tanaka, (unknown), (unknown), Norie Murayama, Makiko Shimizu, Yoshiro Saito, Hiroshi Yamazaki	8
4	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 ·Drug Metabolism and Disposition ·Makiko Shimizu, Shotaro Uehara, Katsuhiro Ohyama, (unknown), Yoïchi Tanaka, Yoshiro Saito, Hiroshi Suemizu, Sayaka Yoshida, Hiroshi Yamazaki	5
5	Association of Torsade de Pointes and QT Prolongation With Antifungal Triazoles: Analysis Using a Pharmacovigilance Database 2023 ·In Vivo ·Katsuhiro Ohyama, (unknown), (unknown), Yusuke S. Hori	4
6	Pharmacovigilance study of the association between dipeptidyl peptidase–4 inhibitors and angioedema using the FDA Adverse Event Reporting System (FAERS) 2022 ·Scientific Reports ·Katsuhiro Ohyama, (unknown), Tomohiro Takahashi, (unknown), Yusuke S. Hori	10
7	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 ·Drug Metabolism and Pharmacokinetics ·(unknown), Katsuhiro Ohyama, Yoïchi Tanaka, (unknown), Norie Murayama, Makiko Shimizu, Yoshiro Saito, Hiroshi Yamazaki	13
8	Effect of Concomitant Drug Use on the Onset and Exacerbation of Diabetes Mellitus in Everolimus-Treated Cancer 2022 ·Journal of Pharmacy & Pharmaceutical Sciences ·Katsuhiro Ohyama, Hiroyuki Tanaka, Yusuke S. Hori	6
9	Inverse association between DPP-4 inhibitor use and fracture in older adults: A disproportionality analysis of the FAERS and JADER 2022 ·International Journal of Clinical Pharmacology and Therapeutics ·Katsuhiro Ohyama, (unknown), Yusuke Hori	5
10	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 ·Journal of Pharmacy & Pharmaceutical Sciences ·Hiroyuki Tanaka, Tatsuhiko Wada, Katsuhiro Ohyama, Toshihiro Ishii	4
11	Time-to-onset of diabetes with everolimus use: analysis of a spontaneous reporting system database. 2021 ·PubMed ·Katsuhiro Ohyama, (unknown), (unknown), Hidenori Tanaka, Yusuke S. Hori, Hirohito Takeuchi	4
12	Psoriasis associated with ACE inhibitors: an analysis of the FAERS database. 2020 ·PubMed ·Katsuhiro Ohyama, (unknown), Munetoshi Sugiura, Yusuke S. Hori	4
13	Blood Pressure Elevation Associated with Topical Prostaglandin F2α Analogs: An Analysis of the Different Spontaneous Adverse Event Report Databases 2017 ·Biological and Pharmaceutical Bulletin ·Katsuhiro Ohyama, (unknown), Michiko Inoue	8
14	Association between Selective Beta-adrenergic Drugs and Blood Pressure Elevation: Data Mining of the Japanese Adverse Drug Event Report (JADER) Database 2016 ·YAKUGAKU ZASSHI ·Katsuhiro Ohyama, Michiko Inoue	4
15	Study on Tendencies of Topical Adverse Effects Caused by Different Dermatological Formulations of Diclofenac 2015 ·Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences) ·Katsuhiro Ohyama, Shinji Takahashi, (unknown)	1
16	Drug interactions of diclofenac and its oxidative metabolite with human liver microsomal cytochrome P450 1A2-dependent drug oxidation 2013 ·Xenobiotica ·Katsuhiro Ohyama, Norie Murayama, Makiko Shimizu, Hiroshi Yamazaki	14
17	Cytochrome P450-depedent Drug Oxidation Activity of Liver Microsomes from Microminipigs, A Possible New Animal Model for Humans in Non-clinical Studies 2009 ·Drug Metabolism and Pharmacokinetics ·Norie Murayama, Naoki Kaneko, (unknown), Katsuhiro Ohyama, Makiko Shimizu, (unknown), Hiroshi Yamazaki	42
18	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 ·Protein Expression and Purification ·Hiroshi Yamazaki, (unknown), Tomoko Komatsu, Katsuhiro Ohyama, (unknown), Satoru Asahi, Noriaki Shimada, F. Peter Guengerich, Tsutomu Shimada, Miki Nakajima, Tsuyoshi Yokoi	206
19	A Significant Role of Human Cytochrome P450 2C8 in Amiodarone N-Deethylation: An Approach to Predict the Contribution with Relative Activity Factor 2000 ·Drug Metabolism and Disposition ·Katsuhiro Ohyama, Miki Nakajima, (unknown), Noriaki Shimada, Hiroshi Yamazaki, Tsuyoshi Yokoi	139
20	Inhibitory effects of amiodarone and its N‐deethylated metabolite on human cytochrome P450 activities: Prediction of in vivo drug interactions 2000 ·British Journal of Clinical Pharmacology ·Katsuhiro Ohyama, Mitsutoshi Nakajima, Mikie Suzuki, Noriaki Shimada, Hiroshi Yamazaki, Tsuyoshi Yokoi	163

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact