Tetsuya Ichijo

2.1k total citations
45 papers, 1.6k citations indexed

About

Tetsuya Ichijo is a scholar working on Hepatology, Epidemiology and Rheumatology. According to data from OpenAlex, Tetsuya Ichijo has authored 45 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Hepatology, 27 papers in Epidemiology and 9 papers in Rheumatology. Recurrent topics in Tetsuya Ichijo's work include Liver Disease Diagnosis and Treatment (26 papers), Hepatitis C virus research (14 papers) and Liver Diseases and Immunity (12 papers). Tetsuya Ichijo is often cited by papers focused on Liver Disease Diagnosis and Treatment (26 papers), Hepatitis C virus research (14 papers) and Liver Diseases and Immunity (12 papers). Tetsuya Ichijo collaborates with scholars based in Japan, United States and India. Tetsuya Ichijo's co-authors include Kaname Yoshizawa, Eiji Tanaka, Takeji Umemura, Kendo Kiyosawa, Akihiro Matsumoto, Satoru Joshita, Masao Ôta, Yoshihiko Katsuyama, Michiharu Komatsu and Naoki Tanaka and has published in prestigious journals such as Gastroenterology, Hepatology and The Journal of Infectious Diseases.

In The Last Decade

Tetsuya Ichijo

43 papers receiving 1.6k citations

Peers

Tetsuya Ichijo
Etsuko Hashimoto Japan
Shinn‐Cherng Chen Taiwan
Ezio Fornasiere Italy
Ming‐Lun Yeh Taiwan
Davide Bitetto Italy
Carmela Cursaro Italy
R. Poupon France
Sheng‐Nan Lu Taiwan
Hemda Schmilovitz‐Weiss Israel
Haruhiko Kobashi Japan
Etsuko Hashimoto Japan
Tetsuya Ichijo
Citations per year, relative to Tetsuya Ichijo Tetsuya Ichijo (= 1×) peers Etsuko Hashimoto

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 of co-authors of Tetsuya Ichijo

This figure shows the co-authorship network connecting the top 25 collaborators of Tetsuya Ichijo. A scholar is included among the top collaborators of Tetsuya Ichijo 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 Tetsuya Ichijo. Tetsuya Ichijo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Yoshizawa, Kaname, Akihiro Matsumoto, Tetsuya Ichijo, et al.. (2012). Long-term outcome of Japanese patients with type 1 autoimmune hepatitis. Hepatology. 56(2). 668–676. 84 indexed citations
3.
Umemura, Takeji, Satoru Joshita, Tetsuya Ichijo, et al.. (2011). Human Leukocyte Antigen Class II Molecules Confer Both Susceptibility and Progression in Japanese Patients With Primary Biliary Cirrhosis. Hepatology. 55(2). 506–511. 60 indexed citations
4.
Joshita, Satoru, Takeji Umemura, Yoshihiko Katsuyama, et al.. (2011). Association of IL28B gene polymorphism with development of hepatocellular carcinoma in Japanese patients with chronic hepatitis C virus infection. Human Immunology. 73(3). 298–300. 35 indexed citations
5.
Tanaka, Naoki, Minoru Hongo, Michiharu Komatsu, et al.. (2010). Nonalcoholic fatty liver disease in Japanese junior high school students: its prevalence and relationship to lifestyle habits. Journal of Gastroenterology. 45(6). 666–672. 36 indexed citations
6.
Umemura, Takeji, Yoh Zen, Hideaki Hamano, et al.. (2010). Clinical significance of immunoglobulin G4-associated autoimmune hepatitis. Journal of Gastroenterology. 46(S1). 48–55. 80 indexed citations
7.
Tanaka, Naoki, Masatomo Kawakubo, Akira Horiuchi, et al.. (2010). 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. 44(6). 440–447. 62 indexed citations
8.
Joshita, Satoru, Tetsuya Ichijo, Atsushi Kamijo, et al.. (2009). A case of relapsed hepatocellular carcinoma successfully evaluated by contrast-enhanced ultrasonography using SonazoidTM. Kanzo. 50(5). 250–256. 1 indexed citations
9.
Matsumoto, Akihiro, Satoru Joshita, Michiharu Komatsu, et al.. (2008). Pretreatment prediction of virological response to peginterferon plus ribavirin therapy in chronic hepatitis C patients using viral and host factors. Hepatology. 48(6). 1753–1760. 108 indexed citations
10.
Joshita, Satoru, Tetsuya Ichijo, Fumitaka Suzuki, et al.. (2008). A case of well‐differentiated cholangiolocellular carcinoma visualized with contrast‐enhanced ultrasonography using Sonazoid. Hepatology Research. 39(2). 207–212. 14 indexed citations
11.
Tanaka, Naoki, Tadanobu Nagaya, Michiharu Komatsu, et al.. (2008). 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. 28(8). 1104–1111. 19 indexed citations
12.
Nagaya, Tadanobu, Naoki Tanaka, Michiharu Komatsu, et al.. (2008). Development from simple steatosis to liver cirrhosis and hepatocellular carcinoma: a 27-year follow-up case. Clinical Journal of Gastroenterology. 1(3). 116–121. 26 indexed citations
13.
Ichijo, Tetsuya, Noriko Kobayashi, Naoki Tanaka, et al.. (2007). A case of primary hepatic actinomycosis with a presumed invasion to abdominal wall, diagnosed with image examinations by chance. Kanzo. 48(11). 553–558. 2 indexed citations
14.
Tanaka, Naoki, Eiji Tanaka, Michiharu Komatsu, et al.. (2006). Useful parameters for distinguishing nonalcoholic steatohepatitis with mild steatosis from cryptogenic chronic hepatitis in the Japanese population. Liver International. 26(8). 956–963. 25 indexed citations
15.
Umemura, Takeji, Masao Ôta, Kaname Yoshizawa, et al.. (2006). Lack of association between FCRL3 and FcγRII polymorphisms in Japanese type 1 autoimmune hepatitis. Clinical Immunology. 122(3). 338–342. 11 indexed citations
16.
Yoshizawa, Kaname, Masao Ôta, Yoshihiko Katsuyama, et al.. (2005). Genetic analysis of the HLA region of Japanese patients with type 1 autoimmune hepatitis. Journal of Hepatology. 42(4). 578–584. 83 indexed citations
17.
Kiyosawa, Kendo, Takeji Umemura, Tetsuya Ichijo, et al.. (2004). Hepatocellular carcinoma: Recent trends in Japan. Gastroenterology. 127(5). S17–S26. 256 indexed citations
18.
Ochi, Yasuhide, et al.. (2002). PRIMARY GASTRIC LIPOSARCOMA. REPORT OF A CASE AND REVIEW OF THE LITERATURE. 44(8). 1168–1174.
19.
Orii, Koji, Eiji Tanaka, Akinori Rokuhara, et al.. (2000). Persistent Infection Mechanism of GB Virus C/Hepatitis G Virus Differs from That of Hepatitis C Virus. Intervirology. 43(3). 139–145. 5 indexed citations
20.
Yoshizawa, Kaname, Yoshihiko Katsuyama, Tetsuya Ichijo, et al.. (1999). T cell repertoire in the liver of patients with autoimmune hepatitis. Human Immunology. 60(9). 806–815. 19 indexed citations

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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