Kiyoshi Okamura

515 total citations
35 papers, 426 citations indexed

About

Kiyoshi Okamura is a scholar working on Surgery, Epidemiology and Gastroenterology. According to data from OpenAlex, Kiyoshi Okamura has authored 35 papers receiving a total of 426 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Surgery, 5 papers in Epidemiology and 5 papers in Gastroenterology. Recurrent topics in Kiyoshi Okamura's work include Pancreatitis Pathology and Treatment (6 papers), Helicobacter pylori-related gastroenterology studies (6 papers) and Gastrointestinal disorders and treatments (5 papers). Kiyoshi Okamura is often cited by papers focused on Pancreatitis Pathology and Treatment (6 papers), Helicobacter pylori-related gastroenterology studies (6 papers) and Gastrointestinal disorders and treatments (5 papers). Kiyoshi Okamura collaborates with scholars based in Japan. Kiyoshi Okamura's co-authors include Masayoshi Namiki, Toshikatsu Okumura, Akira Uehara, Yuichi Takasugi, Chihiro Sekiya, Takeshi Obara, Hitoshi Ura, Yuji Ishikawa, Yusuke Saitoh and Yoshimi Shibata and has published in prestigious journals such as Biochemical and Biophysical Research Communications, European Journal of Pharmacology and Urology.

In The Last Decade

Kiyoshi Okamura

32 papers receiving 414 citations

Peers

Kiyoshi Okamura

SURGE

ONCOL

IMMUN

GASTR

M Namiki Japan

Chun–Mei Zhao Sweden

C Debray France

T. N. Rasmussen Denmark

M. L. Schubert United States

И. М. Кветной Russia

Jacqueline E. Wunderlich United States

J.J. Maoret France

Sanae ICHIKAWA Japan

L. Hansen Denmark

M Namiki Japan

Kiyoshi Okamura

120 ×0.6

SURGE

34 ×0.4

ONCOL

46 ×0.6

IMMUN

92 ×1.5

GASTR

54 ×1.0

Citations per year, relative to Kiyoshi Okamura Kiyoshi Okamura (= 1×) peers M Namiki

Countries citing papers authored by Kiyoshi Okamura

Since Specialization

Citations

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

Fields of papers citing papers by Kiyoshi Okamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kiyoshi Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of Kiyoshi Okamura. A scholar is included among the top collaborators of Kiyoshi Okamura 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 Kiyoshi Okamura. Kiyoshi Okamura 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

Ura, Hitoshi, Takeshi Obara, Noriyuki Nishino, et al.. (1994). Cytotoxicity of Simvastatin to Pancreatic Adenocarcinoma Cells Containing Mutant ras Gene. Japanese Journal of Cancer Research. 85(6). 633–638. 28 indexed citations

Uehara, Akira, Toshikatsu Okumura, Yoshimi Shibata, et al.. (1992). Gastric antisecretory and antiulcer actions of interleukin- 1. Journal of Clinical Gastroenterology. 14. 2 indexed citations

Obara, Takeshi, Yusuke Saitoh, Hiroyuki Maguchi, et al.. (1992). Multicentric development of pancreatic intraductal carcinoma through atypical papillary hyperplasia. Human Pathology. 23(1). 82–85. 31 indexed citations

Shibata, Yoshimi, Tokiyoshi Ayabe, Masaki Taruishi, et al.. (1991). Endoscopic evaluations of experimental colitis in rat induced by a hapten. Acta gastro-enterologica belgica. 33(6). 2 indexed citations

Okumura, Toshikatsu, Akira Uehara, Yoshiaki Taniguchi, et al.. (1991). Central nervous system action of basic fibroblast growth factor: Inhibition of gastric acid and pepsin secretion. Biochemical and Biophysical Research Communications. 175(2). 527–531. 16 indexed citations

Okumura, Toshikatsu, et al.. (1991). Prevention by interleukin-1 of intracisternally injected thyrotropin-releasing hormone (TRH)-induced gastric mucosal lesions in rats. Neuroscience Letters. 125(1). 31–33. 9 indexed citations

Taruishi, Masaki, et al.. (1990). A CASE OF TRAUMATIC INTRAMURAL HEMATOMA OF THE DUODENUM OBSERVED CONSECUTIVELY BY ENDOSCOPY. Acta gastro-enterologica belgica. 32(3). 1 indexed citations

Okumura, Toshikatsu, A. Uehara, Kiyoshi Okamura, & M Namiki. (1990). Site-Specific Formation of Gastric Ulcers by the Electric Stimulation of the Left or Right Gastric Branch of the Vagus Nerve in the Rat. Scandinavian Journal of Gastroenterology. 25(8). 834–840. 14 indexed citations

Okumura, Toshikatsu, Akira Uehara, Kiyoshi Okamura, Yuichi Takasugi, & Masayoshi Namiki. (1990). Inhibition of gastric pepsin secretion by peripherally or centrally injected interleukin-1 in rats. Biochemical and Biophysical Research Communications. 167(3). 956–961. 34 indexed citations

10.

Uehara, Akira, Toshikatsu Okumura, Kiyoshi Okamura, Yuichi Takasugi, & Masayoshi Namiki. (1990). Lipopolysaccharide-induced inhibition of gastric acid and pepsin secretion in rats. European Journal of Pharmacology. 181(1-2). 141–145. 19 indexed citations

11.

Masuda, Kazuhiko, et al.. (1989). Infrared electronic endoscope and its clinical evaluation. Acta gastro-enterologica belgica. 31(10). 2587–2593. 2 indexed citations

12.

Kitagawa, Takashi, et al.. (1989). INTUSSUSCEPTION DUE TO CARCINOMA OF THE SIGMOID COLON IN AN ADULT : REPORT OF A CASE DIAGNOSED BY COLONOSCOPY. Acta gastro-enterologica belgica. 31(9). 1 indexed citations

13.

Okumura, Toshikatsu, et al.. (1989). Gastric Lesions Induced by Kainic Acid Injection into the Dorsal Motor Nucleus of the Vagus Nerve in Rats. Scandinavian Journal of Gastroenterology. 24(sup162). 15–18. 8 indexed citations

14.

Kurokawa, Hiroshi, Yoshimi Shibata, Miki Yamano, et al.. (1988). Comparison of the clinical outcome of gastric cancer in aged and younger patient in relation to treatment.. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 25(6). 603–609.

15.

Hara, Hisato, Hiroyuki Yamazaki, Hideki Hayashi, et al.. (1986). CLINICAL INVESTIGATION OF PANCREAS DIVISUM ASSOCIATED WITH PANCREATITIS. Acta gastro-enterologica belgica. 28(3). 562–568. 2 indexed citations

16.

Yamano, Miki, et al.. (1986). GASTRIC SUBMUCOSAL ECTOPIC GLANDS REMOVED BY ENDOSCOPIC POLYPECTOMY WITH HIGH FREQUENCY : Report of a case. Acta gastro-enterologica belgica. 28(10). 2353–2361. 2 indexed citations

17.

Utsumi, Makoto, Noriyuki Ueda, Hiroyuki Yamazaki, et al.. (1985). CLINICAL STUDY ON PANCREATITIS ASSOCIATED WITH ANOMALOUS ARRANGEMENT OF PANCREATICO-BILIARY DUCT. Acta gastro-enterologica belgica. 27(12). 2759–2767.

18.

Yamano, Miki, Masanori Murakami, Hiroshi Kurokawa, et al.. (1985). MUCIN PRODUCING PANCREATIC CARCINOMA :REPORT OF A CASE. Acta gastro-enterologica belgica. 27(10). 2027–2035. 1 indexed citations

19.

Okamura, Kiyoshi, Yoshimi Shibata, Tomoko Hayashi, et al.. (1979). CLINICAL APPLICATION OF THE YAG LASER—THE SECOND REPORT—. Acta gastro-enterologica belgica. 21(11). 6 indexed citations

20.

Hayashi, Hideki, Kiyoshi Okamura, Chihiro Sekiya, et al.. (1979). A CASE OF MULTIPLE SUBMUCOSAL CYSTS OF THE STOMACH. Acta gastro-enterologica belgica. 21(5). 1 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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