Masahiko Tsujii

14.2k total citations · 4 hit papers
198 papers, 11.6k citations indexed

About

Masahiko Tsujii is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Pharmacology. According to data from OpenAlex, Masahiko Tsujii has authored 198 papers receiving a total of 11.6k indexed citations (citations by other indexed papers that have themselves been cited), including 96 papers in Surgery, 45 papers in Pulmonary and Respiratory Medicine and 38 papers in Pharmacology. Recurrent topics in Masahiko Tsujii's work include Helicobacter pylori-related gastroenterology studies (61 papers), Inflammatory mediators and NSAID effects (38 papers) and Gastric Cancer Management and Outcomes (34 papers). Masahiko Tsujii is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (61 papers), Inflammatory mediators and NSAID effects (38 papers) and Gastric Cancer Management and Outcomes (34 papers). Masahiko Tsujii collaborates with scholars based in Japan, United States and South Korea. Masahiko Tsujii's co-authors include Sunao Kawano, Raymond N. DuBois, Raymond N. DuBois, Shingo Tsuji, Hitoshi Sawaoka, Masatsugu Hori, Hideki Iijima, Hiroaki Murata, Tsutomu Nishida and Sudhansu K. Dey and has published in prestigious journals such as Cell, Proceedings of the National Academy of Sciences and Journal of Clinical Investigation.

In The Last Decade

Masahiko Tsujii

190 papers receiving 11.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Cyclooxygenase Regulates Angiogenesis Induced by Colon Cancer Cells

1998 2.0k citations Masahiko Tsujii, Sunao Kawano et al. profile →
Alterations in cellular adhesion and apoptosis in epithelial cells overexpressing prostaglandin endoperoxide synthase 2

1995 2.0k citations Masahiko Tsujii et al. profile →
Cyclooxygenase-2 expression in human colon cancer cells increases metastatic potential

1997 1.2k citations Masahiko Tsujii, Sunao Kawano et al. Proceedings of the National Academy of Sciences profile →
Host cyclooxygenase-2 modulates carcinoma growth

2000 577 citations Christopher S. Williams, Masahiko Tsujii et al. Journal of Clinical Investigation profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Masahiko Tsujii Japan	45	5.8k	3.4k	2.9k	2.8k	2.0k	198	11.6k
Ari Ristimäki Finland	54	3.2k 0.6×	2.5k 0.7×	1.8k 0.6×	4.1k 1.5×	3.0k 1.5×	197	10.6k
Sunao Kawano Japan	39	3.3k 0.6×	1.9k 0.6×	2.2k 0.8×	1.8k 0.6×	1.1k 0.6×	121	7.6k
R. Daniel Beauchamp United States	61	2.4k 0.4×	2.0k 0.6×	1.8k 0.6×	5.1k 1.8×	3.9k 1.9×	179	11.4k
Shingo Tsuji Japan	39	2.4k 0.4×	1.4k 0.4×	1.9k 0.7×	2.4k 0.8×	920 0.5×	154	6.9k
Andrzej S. Tarnawski United States	55	2.3k 0.4×	1.1k 0.3×	3.9k 1.4×	3.5k 1.3×	1.4k 0.7×	237	10.8k
Dingzhi Wang United States	40	2.1k 0.4×	870 0.3×	587 0.2×	2.9k 1.0×	2.0k 1.0×	64	7.2k
Frank A. Sinicrope United States	66	1.4k 0.2×	920 0.3×	1.9k 0.6×	4.4k 1.6×	7.4k 3.7×	249	13.3k
Jay O. Boyle United States	40	1.1k 0.2×	814 0.2×	1.7k 0.6×	1.9k 0.7×	2.5k 1.2×	65	6.6k
Kevin Horgan United States	34	1.6k 0.3×	812 0.2×	3.2k 1.1×	1.0k 0.4×	951 0.5×	63	9.1k
Levy Kopelovich United States	50	1.1k 0.2×	1.1k 0.3×	555 0.2×	4.8k 1.7×	2.5k 1.3×	214	9.2k

Countries citing papers authored by Masahiko Tsujii

Since Specialization

Citations

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

Fields of papers citing papers by Masahiko Tsujii

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masahiko Tsujii

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

All Works

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20 of 20 papers shown

Ohta, Katsuya, Masakazu Ikenaga, Masami Ueda, et al.. (2020). Bridge to surgery using a self-expandable metallic stent for stages II–III obstructive colorectal cancer. BMC Surgery. 20(1). 3 indexed citations

Mukai, Akira, Hideki Iijima, Satoshi Hiyama, et al.. (2013). Regulation of anergy-related ubiquitin E3 ligase, GRAIL, in murine models of colitis and patients with Crohn’s disease. Journal of Gastroenterology. 49(12). 1524–1535. 10 indexed citations

Iijima, Hideki, Masahiko Tsujii, & Tetsuo Takehara. (2013). [Gastrointestinal diseases and bone].. PubMed. 23(2). 243–8.

Hayashi, Yoshito, Masahiko Tsujii, Jun Wang, et al.. (2012). CagA mediates epigenetic regulation to attenuate let-7 expression in Helicobacter pylori -related carcinogenesis. Gut. 62(11). 1536–1546. 110 indexed citations

Shinzaki, Shinichiro, Hideki Iijima, Hironobu Fujii, et al.. (2012). Lectin-based Immunoassay for Aberrant IgG Glycosylation as the Biomarker for Crohnʼs Disease. Inflammatory Bowel Diseases. 19(2). 321–331. 36 indexed citations

Inoue, Takahiro, Hideki Iijima, Michiko Tajiri, et al.. (2012). Deficiency of N-acetylgalactosamine in O-linked oligosaccharides of IgA is a novel biologic marker for Crohnʼs disease. Inflammatory Bowel Diseases. 18(9). 1723–1734. 25 indexed citations

Shinzaki, Shinichiro, Hideki Iijima, Hironobu Fujii, et al.. (2012). Altered Oligosaccharide Structures Reduce Colitis Induction in Mice Defective in β-1,4-Galactosyltransferase. Gastroenterology. 142(5). 1172–1182. 24 indexed citations

Kato, Motohiko, Tsutomu Nishida, Katsumi Yamamoto, et al.. (2012). Scheduled endoscopic surveillance controls secondary cancer after curative endoscopic resection for early gastric cancer: a multicentre retrospective cohort study by Osaka University ESD study group. Gut. 62(10). 1425–1432. 186 indexed citations

Kondo, Jumpei, Hiroko Endo, Hiroaki Okuyama, et al.. (2011). Retaining cell–cell contact enables preparation and culture of spheroids composed of pure primary cancer cells from colorectal cancer. Proceedings of the National Academy of Sciences. 108(15). 6235–6240. 255 indexed citations

10.

Terabe, Fumitaka, Minoru Fujimoto, Satoshi Serada, et al.. (2010). Comparative analysis of the effects of anti-IL-6 receptor mAb and anti-TNF mAb treatment on CD4+ T-cell responses in murine colitis. Inflammatory Bowel Diseases. 17(2). 491–502. 14 indexed citations

11.

Nakajima, Sachiko, Hideki Iijima, Shinichiro Shinzaki, et al.. (2010). Functional analysis of agalactosyl IgG in inflammatory bowel disease patients. Inflammatory Bowel Diseases. 17(4). 927–936. 25 indexed citations

12.

Egawa, Satoshi, Hideki Iijima, Shinichiro Shinzaki, et al.. (2008). Upregulation of GRAIL is associated with remission of ulcerative colitis. American Journal of Physiology-Gastrointestinal and Liver Physiology. 295(1). G163–G169. 12 indexed citations

13.

Irie, Takanobu, Masahiko Tsujii, Shingo Tsuji, et al.. (2007). Synergistic antitumor effects of celecoxib with 5‐fluorouracil depend on IFN‐γ. International Journal of Cancer. 121(4). 878–883. 36 indexed citations

14.

Murata, Hiroaki, Shingo Tsuji, Masahiko Tsujii, et al.. (2007). Helicobacter Pylori Infection Induces Candidate Stem Cell Marker Musashi-1 in the Human Gastric Epithelium. Digestive Diseases and Sciences. 53(2). 363–369. 20 indexed citations

15.

Inoue, Takahiro, Naoki Hiramatsu, Tsutomu Nishida, et al.. (2004). Successful hepatic arterial infusion chemotherapy of cisplatin in advanced hepatocellular carcinoma. Kanzo. 45(9). 499–504. 4 indexed citations

16.

Williams, Christopher S., Masahiko Tsujii, Jeff Reese, Sudhansu K. Dey, & Raymond N. DuBois. (2000). Host cyclooxygenase-2 modulates carcinoma growth. Journal of Clinical Investigation. 105(11). 1589–1594. 577 indexed citations breakdown →

17.

Tsujii, Masahiko, et al.. (1995). Mechanism for ammonia-induced promotion of gastric carcinogenesis in rats. Carcinogenesis. 16(3). 563–566. 23 indexed citations

18.

Michida, Tomoki, Sunao Kawano, Eiji Masuda, et al.. (1994). Role of endothelin 1 in hemorrhagic shock-induced gastric mucosal injury in rats. Gastroenterology. 106(4). 988–993. 53 indexed citations

19.

Kawano, Seiji, Masahiko Tsujii, Kouichi Nagano, et al.. (1990). Different Effect ofHelicobacter pylorion the Human Gastric Antral and Body Mucosal Intracellular Mucin. Scandinavian Journal of Gastroenterology. 25(10). 997–1003. 17 indexed citations

20.

Kawano, Sunao, Nobuhiro Sato, Shingo Tsuji, et al.. (1989). PREVENTIVE EFFECT OF PROSTAGLANDIN E1 ANALOG ON CIGARETTE SMOKING INDUCED GASTRIC MUCOSAL ISCHEMIA. Acta gastro-enterologica belgica. 31(3). 634–640. 3 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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