Takeshi Oohara

1.8k total citations
64 papers, 1.4k citations indexed

About

Takeshi Oohara is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Takeshi Oohara has authored 64 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Surgery, 29 papers in Pulmonary and Respiratory Medicine and 14 papers in Oncology. Recurrent topics in Takeshi Oohara's work include Gastric Cancer Management and Outcomes (24 papers), Helicobacter pylori-related gastroenterology studies (19 papers) and Genetic factors in colorectal cancer (12 papers). Takeshi Oohara is often cited by papers focused on Gastric Cancer Management and Outcomes (24 papers), Helicobacter pylori-related gastroenterology studies (19 papers) and Genetic factors in colorectal cancer (12 papers). Takeshi Oohara collaborates with scholars based in Japan, Germany and United States. Takeshi Oohara's co-authors include Shu Kuramoto, Michio Kaminishi, Shouji Shimoyama, Frank Gansauge, Susanne Gansauge, H. G. Beger, Shigeru Sakai, H. Yamaguchi, Giovanni Negri and Sachiyo Nomura and has published in prestigious journals such as Gastroenterology, Cancer and Annals of Surgery.

In The Last Decade

Takeshi Oohara

61 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takeshi Oohara Japan 22 635 618 516 413 250 64 1.4k
Agoston T. Agoston United States 19 560 0.9× 386 0.6× 507 1.0× 320 0.8× 236 0.9× 37 1.7k
Seiyo Ikeda Japan 23 1.2k 2.0× 871 1.4× 530 1.0× 91 0.2× 148 0.6× 83 1.8k
Mizutomo Azuma Japan 25 810 1.3× 1.2k 2.0× 927 1.8× 154 0.4× 446 1.8× 91 2.2k
Vera Schellerer Germany 20 294 0.5× 270 0.4× 550 1.1× 210 0.5× 70 0.3× 60 1.1k
Hideya Takeuchi Japan 17 223 0.4× 358 0.6× 584 1.1× 122 0.3× 98 0.4× 70 1.3k
Hector Cohen Israel 18 302 0.5× 209 0.3× 538 1.0× 464 1.1× 40 0.2× 63 1.2k
Kejian Guo China 18 543 0.9× 305 0.5× 296 0.6× 76 0.2× 343 1.4× 49 1.2k
Takeaki Fukuda Japan 16 250 0.4× 292 0.5× 219 0.4× 176 0.4× 70 0.3× 45 988
Luisa Toffolatti Italy 18 261 0.4× 653 1.1× 278 0.5× 144 0.3× 364 1.5× 42 1.1k
Suk Joong Oh South Korea 16 263 0.4× 423 0.7× 539 1.0× 263 0.6× 109 0.4× 40 1.0k

Countries citing papers authored by Takeshi Oohara

Since Specialization
Citations

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

Fields of papers citing papers by Takeshi Oohara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takeshi Oohara

This figure shows the co-authorship network connecting the top 25 collaborators of Takeshi Oohara. A scholar is included among the top collaborators of Takeshi Oohara 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 Takeshi Oohara. Takeshi Oohara 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.
Nomura, Sachiyo, Michio Kaminishi, K. Sugiyama, Takeshi Oohara, & Hiroyasu Esumi. (1998). Clonal analysis of isolated intestinal metaplastic glands of stomach using X linked polymorphism. Gut. 42(5). 663–668. 25 indexed citations
2.
Shimizu, Nobuyuki, Michio Kaminishi, Masae Tatematsu, et al.. (1998). Helicobacter pylori promotes development of pepsinogen-altered pyloric glands, a preneoplastic lesion of glandular stomach of BALB/c mice pretreated with N-methyl-N-nitrosourea. Cancer Letters. 123(1). 63–69. 17 indexed citations
3.
Tatematsu, Masae, Masami Yamamoto, Nobuyuki Shimizu, et al.. (1998). Induction of Glandular Stomach Cancers in Helicobacter pylori‐sensitive Mongolian Gerbils Treated with N‐Methyl‐N‐nitrosourea and N‐Methyl‐N′‐nitro‐N‐nitrosoguanidine in Drinking Water. Japanese Journal of Cancer Research. 89(2). 97–104. 72 indexed citations
4.
Kuramoto, Shu, Toshiki Mimura, Kaoru Kobayashi, et al.. (1998). Peutz-jeghers syndrome manifesting complete intussusception of the appendix and associated with a focal cancer of the duodenum and a cystadenocarcinoma of the pancreas. Diseases of the Colon & Rectum. 41(4). 517–521. 20 indexed citations
5.
Mimura, Toshiki, H. Yamaguchi, Nobuyuki Shimizu, et al.. (1997). Intermittent Sequential Pneumatic Compression as a Prophylaxis for Postoperative Pulmonary Embolism.. The Japanese Journal of Gastroenterological Surgery. 30(5). 1023–1027. 3 indexed citations
6.
Shimoyama, Shouji, et al.. (1997). Overexpression of Intercellular Adhesion Molecule-1 (ICAM-1) in Pancreatic Adenocarcinoma in Comparison with Normal Pancreas. Pancreas. 14(2). 181–186. 31 indexed citations
7.
Nakamura, Tamo, Makoto Yamakawa, Y. Mimura, et al.. (1997). Effect of glutamine on acute lung injury in rats with endotoxemia. Clinical Nutrition. 16(2). 79–83. 8 indexed citations
8.
Kaminishi, Michio, Nobuyuki Shimizu, Hironori Yamaguchi, et al.. (1997). Denervation Promotes the Development of Cancer-Related Lesions in the Gastric Remnant. Journal of Clinical Gastroenterology. 25. S129–S134. 22 indexed citations
9.
Kuramoto, Shu, Toshiki Mimura, Kazuki Yamasaki, et al.. (1997). Flat cancers do develop in the polyp-free large intestine. Diseases of the Colon & Rectum. 40(5). 534–542. 8 indexed citations
10.
Sanno, Naoko, et al.. (1997). A rare case of gastric cancer in an acromegalic patient. Journal of Gastroenterology. 32(4). 528–532. 8 indexed citations
11.
Kaminishi, Michio, Nobuyuki Shimizu, H. Yamaguchi, et al.. (1996). Different carcinogenesis in the gastric remnant after gastrectomy for gastric cancer. Cancer. 77(8). 1646–1653. 9 indexed citations
12.
Kuramoto, Shu, et al.. (1996). Floating gallbladder associated with histologically distinct double cancers. Journal of Gastroenterology. 31(3). 465–469. 1 indexed citations
13.
Kuramoto, Shu & Takeshi Oohara. (1995). How do colorectal cancers develop?. Cancer. 75(S6). 1534–1538. 29 indexed citations
14.
Shimoyama, Shouji, Frank Gansauge, Susanne Gansauge, Takeshi Oohara, & H. G. Beger. (1995). Altered expression of extracellular matrix molecules and their receptors in chronic pancreatitis and pancreatic adenocarcinoma in comparison with normal pancreas. International Journal of Pancreatology. 18(3). 227–234. 45 indexed citations
15.
Kaminishi, Michio, et al.. (1992). Studies on the Alteration of Pancreatic Endocrine Function Accompanied with Glucose Intolerance and Nutritional Disturbance after Total Gastrectomy.. The Japanese Journal of Gastroenterological Surgery. 25(1). 28–35. 1 indexed citations
16.
Kaminishi, Michio, et al.. (1992). Severe Gastric Mucosal Changes Following Vagotomy with Duodenogastric Reflux. Journal of Clinical Gastroenterology. 14. S15–S24. 7 indexed citations
17.
Oohara, Takeshi. (1991). Rational view of reduced radical gastrectomy for early gastric cancers.. The Japanese Journal of Gastroenterological Surgery. 24(1). 167–171. 5 indexed citations
18.
Oohara, Takeshi, et al.. (1988). Collagen-glycation in the aorta as a developmental factor of aging and arteriosclerosis.. PubMed. 34(4). 179–87. 2 indexed citations
19.
Oohara, Takeshi, et al.. (1983). OBJECTIVE MONITORING OF GASTROFIBERSCOPIC FINDINGS BY AN AUTOMATIC COLOR SENSOR. Acta gastro-enterologica belgica. 25(7). 2 indexed citations
20.
Oohara, Takeshi, et al.. (1982). Minute gastric cancers less than 5 mm in diameter. Cancer. 50(4). 801–810. 31 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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