Tetsuya Ichijo

2.1k citations

45 papers · 1.6k indexed · h-index 22

Hepatology top 0.5%
- Hepatitis C virus research 14
- Liver Diseases and Immunity 12
- Liver Disease and Transplantation 4
Epidemiology top 2%
- Liver Disease Diagnosis and Treatment 26
- Hepatitis B Virus Studies 8
Rheumatology top 5%
- Systemic Lupus Erythematosus Research 8
Surgery top 10%
- Pediatric Hepatobiliary Diseases and Treatments 4
Endocrinology, Diabetes and Metabolism
- Diet, Metabolism, and Disease 4

Co-authors: Kaname Yoshizawa Eiji Tanaka Takeji Umemura Kendo Kiyosawa Akihiro Matsumoto Satoru Joshita Masao Ôta Yoshihiko Katsuyama
Cited by: Hepatology Epidemiology Rheumatology
Journals: Gastroenterology (1 paper)Hepatology (4 papers)The Journal of Infectious Diseases (1 paper)
Partner nations: Japan United States India

In The Last Decade

Tetsuya Ichijo

43 papers receiving 1.6k citations

Peers

Countries citing papers authored by Tetsuya Ichijo

Since Specialization

Citations

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

Fields of papers citing papers by Tetsuya Ichijo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Tetsuya Ichijo, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Tetsuya Ichijo Line = papers co-authored together Tetsuya Ichijo links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Successful treatment by glecaprevir/pibrentasvir followed by hepatoprotective therapy of acute chronic hepatitis exacerbation caused by daratumumab-based regimen for multiple myeloma: Case report and review of the literature Journal of Infection and Chemotherapy ·Tomoo Yamazaki,Satoru Joshita,Tetsuya Ichijo,Hiroyuki Kobayashi,Shun‐ichi Wakabayashi,Yūki Yamashita,Ayumi Sugiura,Fumihiro Kawakami,Hideyuki Nakazawa,Takeji Umemura	2021	2
2	Long-term outcome of Japanese patients with type 1 autoimmune hepatitis Hepatology ·Kaname Yoshizawa,Akihiro Matsumoto,Tetsuya Ichijo,Takeji Umemura,Satoru Joshita,Michiharu Komatsu,Naoki Tanaka,Eiji Tanaka,Masao Ôta,Yoshihiko Katsuyama,Kendo Kiyosawa,Masanori Abe,Morikazu Onji	2012	84
3	Human Leukocyte Antigen Class II Molecules Confer Both Susceptibility and Progression in Japanese Patients With Primary Biliary Cirrhosis Hepatology ·Takeji Umemura,Satoru Joshita,Tetsuya Ichijo,Kaname Yoshizawa,Yoshihiko Katsuyama,Eiji Tanaka,Masao Ôta	2011	60
4	Association of IL28B gene polymorphism with development of hepatocellular carcinoma in Japanese patients with chronic hepatitis C virus infection Human Immunology ·Satoru Joshita,Takeji Umemura,Yoshihiko Katsuyama,Yuki Ichikawa,Takefumi Kimura,Susumu Morita,Atsushi Kamijo,Michiharu Komatsu,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,N. Kamijo,Masao Ôta,Eiji Tanaka	2011	35
5	Nonalcoholic fatty liver disease in Japanese junior high school students: its prevalence and relationship to lifestyle habits Journal of Gastroenterology ·Goro Tsuruta,Naoki Tanaka,Minoru Hongo,Michiharu Komatsu,Akira Horiuchi,Kaeko Hamamoto,Chieko Iguchi,Yoshiko Nakayama,Takeji Umemura,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,Toshifumi Aoyama,Eiji Tanaka	2010	36
6	Clinical significance of immunoglobulin G4-associated autoimmune hepatitis Journal of Gastroenterology ·Takeji Umemura,Yoh Zen,Hideaki Hamano,Satoru Joshita,Tetsuya Ichijo,Kaname Yoshizawa,Kendo Kiyosawa,Masao Ôta,Shigeyuki Kawa,Yasuni Nakanuma,Eiji Tanaka	2010	80
7	Serum Fragmented Cytokeratin 18 Levels Reflect the Histologic Activity Score of Nonalcoholic Fatty Liver Disease More Accurately Than Serum Alanine Aminotransferase Levels Journal of Clinical Gastroenterology ·Masaru Tsutsui,Naoki Tanaka,Masatomo Kawakubo,Yo Sheena,Akira Horiuchi,Michiharu Komatsu,Tadanobu Nagaya,Satoru Joshita,Takeji Umemura,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,Toshifumi Aoyama,Eiji Tanaka,Kenji Sano	2010	62
8	A case of relapsed hepatocellular carcinoma successfully evaluated by contrast-enhanced ultrasonography using SonazoidTM Kanzo ·Suguru Yoneda,Satoru Joshita,Tetsuya Ichijo,Atsushi Kamijo,Michiharu Komatsu,Takeji Umemura,Akihiro Matsumoto,Kaname Yoshizawa,Eiji Tanaka	2009	1
9	Pretreatment prediction of virological response to peginterferon plus ribavirin therapy in chronic hepatitis C patients using viral and host factors Hepatology ·Haruaki Shirakawa,Akihiro Matsumoto,Satoru Joshita,Michiharu Komatsu,Naoki Tanaka,Takeji Umemura,Tetsuya Ichijo,Kaname Yoshizawa,Kendo Kiyosawa,Eiji Tanaka	2008	108
10	A case of well‐differentiated cholangiolocellular carcinoma visualized with contrast‐enhanced ultrasonography using Sonazoid Hepatology Research ·Satoru Joshita,Tetsuya Ichijo,Fumitaka Suzuki,Takahide Yokoyama,Yukiko Sugiyama,Mana Fukushima,Atsushi Kamijo,Michiharu Komatsu,Takeji Umemura,Kaname Yoshizawa,Shinichi Miyagawa,Eiji Tanaka	2008	14
11	Insulin resistance and hepatitis C virus: a case–control study of non‐obese, non‐alcoholic and non‐steatotic hepatitis virus carriers with persistently normal serum aminotransferase Liver International ·Naoki Tanaka,Tadanobu Nagaya,Michiharu Komatsu,Akira Horiuchi,Goro Tsuruta,Haruaki Shirakawa,Takeji Umemura,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,Toshifumi Aoyama,Kendo Kiyosawa,Eiji Tanaka	2008	19
12	Development from simple steatosis to liver cirrhosis and hepatocellular carcinoma: a 27-year follow-up case Clinical Journal of Gastroenterology ·Tadanobu Nagaya,Naoki Tanaka,Michiharu Komatsu,Tetsuya Ichijo,Kenji Sano,Akira Horiuchi,Satoru Joshita,Takeji Umemura,Akihiro Matsumoto,Kaname Yoshizawa,Toshifumi Aoyama,Kendo Kiyosawa,Eiji Tanaka	2008	26
13	A case of primary hepatic actinomycosis with a presumed invasion to abdominal wall, diagnosed with image examinations by chance Kanzo ·Hidetomo Muto,Tetsuya Ichijo,Noriko Kobayashi,Naoki Tanaka,Takeji Umemura,Michiharu Komatsu,Akihiro Matsumoto,Kaname Yoshizawa,Eiji Tanaka,K. Uéda,Masumi Kadoya,Kendo Kiyosawa	2007	2
14	Useful parameters for distinguishing nonalcoholic steatohepatitis with mild steatosis from cryptogenic chronic hepatitis in the Japanese population Liver International ·Naoki Tanaka,Eiji Tanaka,Yo Sheena,Michiharu Komatsu,Wataru Okiyama,Noriko Misawa,Hidetomo Muto,Takeji Umemura,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,Akira Horiuchi,Kendo Kiyosawa	2006	25
15	Lack of association between FCRL3 and FcγRII polymorphisms in Japanese type 1 autoimmune hepatitis Clinical Immunology ·Takeji Umemura,Masao Ôta,Kaname Yoshizawa,Yoshihiko Katsuyama,Tetsuya Ichijo,Eiji Tanaka,Shigeyuki Kawa,Kendo Kiyosawa	2006	11
16	Genetic analysis of the HLA region of Japanese patients with type 1 autoimmune hepatitis Journal of Hepatology ·Kaname Yoshizawa,Masao Ôta,Yoshihiko Katsuyama,Tetsuya Ichijo,Akihiro Matsumoto,Eiji Tanaka,Kendo Kiyosawa	2005	83
17	Hepatocellular carcinoma: Recent trends in Japan Gastroenterology ·Kendo Kiyosawa,Takeji Umemura,Tetsuya Ichijo,Akihiro Matsumoto,Kaname Yoshizawa,Amal Gad,Eiji Tanaka	2004	256
18	PRIMARY GASTRIC LIPOSARCOMA. REPORT OF A CASE AND REVIEW OF THE LITERATURE Hisanobu Saegusa,Toshiki Simizu,Yasuhide Ochi,Tetsuya Ichijo,Kouichi Miyazawa,Ryugo Okabe,Kenji Sano,Taiji Akamatsu	2002	0
19	Persistent Infection Mechanism of GB Virus C/Hepatitis G Virus Differs from That of Hepatitis C Virus Intervirology ·Koji Orii,Eiji Tanaka,Akinori Rokuhara,Atsushi Maruyama,Tetsuya Ichijo,Kaname Yoshizawa,Kendo Kiyosawa	2000	5
20	T cell repertoire in the liver of patients with autoimmune hepatitis Human Immunology ·Kaname Yoshizawa,Masao Ota,Yoshihiko Katsuyama,Tetsuya Ichijo,Hiroyuki Inada,Takeji Umemura,Eiji Tanaka,K Kiyosawa	1999	19

About Tetsuya Ichijo

Tetsuya Ichijo is a scholar working on Hepatology, Microbiology and Epidemiology, having authored 45 papers that have together received 1.6k indexed citations. Recurring topics across this work include Liver Disease Diagnosis and Treatment (26 papers), Hepatitis C virus research (14 papers), Liver Diseases and Immunity (12 papers), Hepatitis B Virus Studies (8 papers), Systemic Lupus Erythematosus Research (8 papers), Diet, Metabolism, and Disease (4 papers), Pediatric Hepatobiliary Diseases and Treatments (4 papers) and Liver Disease and Transplantation (4 papers). The work is most often cited by research in Hepatology (1.1k citations), Epidemiology (1.1k citations) and Rheumatology (248 citations). Tetsuya Ichijo has collaborated with scholars based in Japan, United States and India. Frequent co-authors include Kaname Yoshizawa, Eiji Tanaka, Takeji Umemura, Kendo Kiyosawa, Akihiro Matsumoto, Satoru Joshita, Masao Ôta, Yoshihiko Katsuyama, Michiharu Komatsu and Naoki Tanaka. Their work appears in journals such as Gastroenterology, Hepatology and The Journal of Infectious Diseases.

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.

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