Kenji Oyama

1.6k citations

37 papers · 1.3k indexed · h-index 18

Co-authors: Hiroshi Nakagawa Claudia D. Andl Anil K. Rustgi Takaaki Mizushima Meenhard Herlyn Hideki Harada Munenori Takaoka Hironaka Kawasaki
Topics: Liver Disease Diagnosis and Treatment (4 papers)Ear Surgery and Otitis Media (4 papers)Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers)
Cited by: Hepatology Oncology Cancer Research
Journals: Journal of Biological Chemistry Journal of Clinical Investigation Gastroenterology
Partner nations: Japan United States Germany

In The Last Decade

Kenji Oyama

35 papers receiving 1.3k citations

Peers

Countries citing papers authored by Kenji Oyama

Since Specialization

Citations

This map shows the geographic impact of Kenji Oyama'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 Kenji Oyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kenji Oyama more than expected).

Fields of papers citing papers by Kenji Oyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kenji Oyama. 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 Kenji Oyama. The network helps show where Kenji Oyama may publish in the future.

Co-authorship network of co-authors of Kenji Oyama

This figure shows the co-authorship network connecting the top 25 collaborators of Kenji Oyama. A scholar is included among the top collaborators of Kenji Oyama 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 Kenji Oyama. Kenji Oyama 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	Chronic Active Epstein–Barr Virus Infection Indistinguishable from Autoimmune Hepatitis: A Case Report 2022 ·Yonago acta medica ·(unknown),Takaaki Sugihara,(unknown),(unknown),(unknown),Takakazu Nagahara,Kenji Oyama,Jun‐ichi Okano,Satoshi Kuwamoto,Yasushi Horie,Hajime Isomoto	1
2	Affinity maturation of humanized anti-epidermal growth factor receptor antibody using a modified phage-based open sandwich selection method 2018 ·Scientific Reports ·(unknown),Kazuki Kobayashi,Kenji Oyama,(unknown),Takeshi Nakanishi,Mitsuo Umetsu,Ryutaro Asano,Izumi Kumagai	4
3	Impact of Preferentially Expressed Antigen of Melanoma on the Prognosis of Hepatocellular Carcinoma 2016 ·PubMed ·Kenji Oyama,Keita Kanki,Hiroki Shimizu,(unknown),(unknown),Kan Toriguchi,Etsuro Hatano,Goshi Shiota	10
4	Clinical usefulness of the ablative margin assessed by magnetic resonance imaging with Gd-EOB-DTPA for radiofrequency ablation of hepatocellular carcinoma 2015 ·Journal of Hepatology ·Masahiko Koda,Shiho Tokunaga,(unknown),(unknown),(unknown),(unknown),(unknown),Jun Kato,Tomomitsu Matono,Takaaki Sugihara,Kenji Oyama,Keiko Hosho,Jun‐ichi Okano,Yoshikazu Murawaki,Suguru Kakite,(unknown)	19
5	A severe drug induced hepatitis caused by a dietary supplement "Nin-niku Ran-oh" made from garlic and egg yolk 2012 ·Kanzo ·(unknown),Ken‐ichi Miyoshi,(unknown),(unknown),(unknown),Shiho Tokunaga,Tomomitsu Matono,(unknown),Kenji Oyama,(unknown),Naoto Maeda,(unknown),Yoshikazu Murawaki	1
6	Granulocyte and monocyte adsorption apheresis as an effective treatment for Reiter disease 2011 ·Clinical and Experimental Dermatology ·(unknown),Kenji Oyama,(unknown),M. Kawasaki,(unknown),Shigeto Matsushita,Kazuhiro Kawai,Koichi Kawahara,Ikuro Maruyama,Takuro Kanekura	6
7	A novel biomarker TERTmRNA is applicable for early detection of hepatoma 2010 ·BMC Gastroenterology ·Norimasa Miura,Yukio Osaki,(unknown),(unknown),(unknown),Kohei Shomori,Takamasa Kanbe,Kenji Oyama,Yukihiro Kishimoto,Shigeo Maruyama,(unknown),Yutaka Horie,Masatoshi Kudo,S Sakaguchi,Yasuaki Hirooka,Hisao Ito,Hironaka Kawasaki,Junichi Hasegawa,Goshi Shiota	31
8	A subpopulation of mouse esophageal basal cells has properties of stem cells with the capacity for self-renewal and lineage specification 2008 ·Journal of Clinical Investigation ·Jiří Kalabis,Kenji Oyama,Takaomi Okawa,Hiroshi Nakagawa,Carmen Z. Michaylira,Douglas B. Stairs,José Luiz de Figueiredo,Umar Mahmood,J. Alan Diehl,Meenhard Herlyn,Anil K. Rustgi	105
9	Development of a Novel Assay to Quantify Serum Human Telomerase Reverse Transcriptase Messenger RNA and Its Significance as a Tumor Marker for Hepatocellular Carcinoma 2007 ·Oncology ·Norimasa Miura,Shigeo Maruyama,Kenji Oyama,Yutaka Horie,(unknown),(unknown),S Sakaguchi,(unknown),Masatoshi Kudo,Yukihiro Kishimoto,Hironaka Kawasaki,Junichi Hasegawa,Goshi Shiota	25
10	AKT induces senescence in primary esophageal epithelial cells but is permissive for differentiation as revealed in organotypic culture 2006 ·Oncogene ·Kenji Oyama,Takaomi Okawa,Hiroshi Nakagawa,Munenori Takaoka,Claudia D. Andl,S-H Kim,Andres J. Klein–Szanto,J. Alan Diehl,Meenhard Herlyn,Wafik S. El‐Deiry,Anil K. Rustgi	46
11	EGFR-induced cell migration is mediated predominantly by the JAK-STAT pathway in primary esophageal keratinocytes 2004 ·American Journal of Physiology-Gastrointestinal and Liver Physiology ·Claudia D. Andl,Takaaki Mizushima,Kenji Oyama,Mark Bowser,Hiroshi Nakagawa,Anil K. Rustgi	104
12	Ha-RasG12V induces senescence in primary and immortalized human esophageal keratinocytes with p53 dysfunction 2004 ·Oncogene ·Munenori Takaoka,Hideki Harada,Thérèse B. Deramaudt,Kenji Oyama,Claudia D. Andl,Cameron N. Johnstone,Ben Rhoades,Gregory H. Enders,Oliver G. Opitz,Hiroshi Nakagawa	45
13	Epidermal Growth Factor Receptor Mediates Increased Cell Proliferation, Migration, and Aggregation in Esophageal Keratinocytes in Vitro and in Vivo 2003 ·Journal of Biological Chemistry ·Claudia D. Andl,Takaaki Mizushima,Hiroshi Nakagawa,Kenji Oyama,Hideki Harada,(unknown),Meenhard Herlyn,Anil K. Rustgi	220
14	Reduction of hepatocarcinogenesis by ursodeoxycholic acid in rats 2002 ·Carcinogenesis ·Kenji Oyama	47
15	Effects of Sho-saiko-to on hepatocarcinogenesis and 8-hydroxy-2'-deoxyguanosine formation 2002 ·Hepatology ·Goshi Shiota,(unknown),(unknown),(unknown),(unknown),Kenji Oyama,Kazuo Yashima,Yosuke Kishimoto,Yoichiro Nakai,(unknown),Hisao Ito,Yoshikazu Murawaki,Hironaka Kawasaki	54
16	Inclusion body myositis associated with hepatitis C virus infection 2001 ·Liver International ·Satoru Kase,(unknown),Yoko Fujii,Kinya Okamoto,Kenji Oyama,Toshiya Nakano,Takashi Nomura,Takeaki Suou,Kenji Nakashima,Hisao Ito,Hironaka Kawasaki	18
17	Acute Otitis Media due to Mucoid Type Streptococcus Pneumoniae 2000 ·Mitsuko Suetake,(unknown),Shin Takahashi,(unknown),Kenji Oyama	1
18	Occult hepatitis B virus infection in HBs antigen-negative hepatocellular carcinoma in a Japanese population: Involvement of HBx and p53 2000 ·Journal of Medical Virology ·Goshi Shiota,Kenji Oyama,(unknown),Kiwamu Tanaka,(unknown),Atsushi Kitamura,Atsushi Tsutsumi,Naoya Noguchi,Yuji Takano,Kazuo Yashima,Yosuke Kishimoto,Takeaki Suou,Hironaka Kawasaki	60
19	In vivo transfer of hepatocyte growth factor gene accelerates proliferation of hepatic oval cells in a 2‐acetylaminofluorene/partial hepatectomy model in rats 2000 ·FEBS Letters ·Goshi Shiota,Takahiro Kunisada,Kenji Oyama,(unknown),(unknown),Kiwamu Tanaka,Atsushi Tsutsumi,(unknown),Takafumi Nakamura,Hirofumi Hamada,Takashi Sakatani,Stewart Sell,Kenzo Sato,Hisao Ito,Hironaka Kawasaki	48
20	Immunoglobulin therapy for otitis-prone children 1995 ·Mitsuko Suetake,Hiroko Endo,(unknown),Kenji Oyama,(unknown),(unknown),Koji Hozawa,Toshimitsu Kobayashi,Tomonori Takasaka	2

About Kenji Oyama

Kenji Oyama is a scholar working on Otorhinolaryngology, Hepatology and Pharmacology, having authored 37 papers that have together received 1.3k indexed citations. Recurring topics across this work include Liver Disease Diagnosis and Treatment (4 papers), Ear Surgery and Otitis Media (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). The work is most often cited by research in Hepatology (296 citations), Oncology (344 citations) and Cancer Research (170 citations). Kenji Oyama has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Hiroshi Nakagawa, Claudia D. Andl, Anil K. Rustgi, Takaaki Mizushima, Meenhard Herlyn, Hideki Harada, Munenori Takaoka, Hironaka Kawasaki, Yoshikazu Murawaki and Goshi Shiota. Their work appears in journals such as Journal of Biological Chemistry, Journal of Clinical Investigation and Gastroenterology.

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