Tomoyuki Oikawa

411 total citations
12 papers, 225 citations indexed

About

Tomoyuki Oikawa is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Tomoyuki Oikawa has authored 12 papers receiving a total of 225 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 4 papers in Gastroenterology and 3 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Tomoyuki Oikawa's work include Helicobacter pylori-related gastroenterology studies (5 papers), Gastroesophageal reflux and treatments (2 papers) and Esophageal and GI Pathology (2 papers). Tomoyuki Oikawa is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (5 papers), Gastroesophageal reflux and treatments (2 papers) and Esophageal and GI Pathology (2 papers). Tomoyuki Oikawa collaborates with scholars based in Japan and United Kingdom. Tomoyuki Oikawa's co-authors include Tooru Shimosegawa, Katsunori Iijima, Tsuneaki Fujiya, Tomoyuki Koike, Koh Miura, Sho Asonuma, Naoki Asano, Akira Imatani, Seiki Kanemura and Yoshikazu Nishino and has published in prestigious journals such as International Journal of Cancer, American Journal of Physiology-Gastrointestinal and Liver Physiology and Cancer Science.

In The Last Decade

Tomoyuki Oikawa

11 papers receiving 221 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Tomoyuki Oikawa Japan	9	107	70	68	42	38	12	225
Zhi-Wei Zhou China	9	64 0.6×	88 1.3×	94 1.4×	42 1.0×	38 1.0×	13	251
María Kavanagh Ireland	8	94 0.9×	31 0.4×	36 0.5×	22 0.5×	77 2.0×	11	197
Min Rong United States	10	141 1.3×	137 2.0×	210 3.1×	14 0.3×	34 0.9×	11	339
Guochun Cao China	8	43 0.4×	61 0.9×	31 0.5×	25 0.6×	41 1.1×	19	148
Sunny Haft United States	10	47 0.4×	139 2.0×	99 1.5×	77 1.8×	56 1.5×	14	298
Rasa Sabaliauskaitė Lithuania	11	32 0.3×	123 1.8×	70 1.0×	67 1.6×	39 1.0×	39	257
Qiming Geng China	12	246 2.3×	93 1.3×	24 0.4×	72 1.7×	15 0.4×	26	334
Hengcun Li China	10	43 0.4×	205 2.9×	37 0.5×	92 2.2×	52 1.4×	16	299
Rui Feng China	6	171 1.6×	61 0.9×	197 2.9×	24 0.6×	47 1.2×	23	317
Andrea Schnúr Hungary	9	155 1.4×	101 1.4×	105 1.5×	7 0.2×	64 1.7×	15	301

Countries citing papers authored by Tomoyuki Oikawa

Since Specialization

Citations

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

Fields of papers citing papers by Tomoyuki Oikawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomoyuki Oikawa

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

All Works

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12 of 12 papers shown

Kawamura, Masashi, Noriya Uedo, Tomoyuki Koike, et al.. (2021). Kyoto classification risk scoring system and endoscopic grading of gastric intestinal metaplasia for gastric cancer: Multicenter observation study in Japan. Digestive Endoscopy. 34(3). 508–516. 33 indexed citations

Minami, Yuko, Seiki Kanemura, Tomoyuki Oikawa, et al.. (2020). Associations of Japanese food intake with survival of stomach and colorectal cancer: A prospective patient cohort study. Cancer Science. 111(7). 2558–2569. 25 indexed citations

Abue, Makoto, Wataru Iwai, Yuta Wakui, et al.. (2019). Pancreatic schwannoma diagnosed by EUS-FNAB. Suizo. 34(1). 37–45.

Imai, Takayuki, Shigemi Ito, Tomoyuki Oikawa, et al.. (2018). Risk factors for cervical lymph node metastasis in endoscopically resected superficial hypopharyngeal cancers. Auris Nasus Larynx. 46(3). 424–430. 11 indexed citations

Minami, Yuko, Seiki Kanemura, Tomoyuki Oikawa, et al.. (2018). Associations of cigarette smoking and alcohol drinking with stomach cancer survival: A prospective patient cohort study in Japan. International Journal of Cancer. 143(5). 1072–1085. 22 indexed citations

Shiroki, Takeharu, Misa Yokoyama, Nobuhiro Tanuma, et al.. (2017). Enhanced expression of the M2 isoform of pyruvate kinase is involved in gastric cancer development by regulating cancer‐specific metabolism. Cancer Science. 108(5). 931–940. 36 indexed citations

Tamai, Keiichi, Takeharu Shiroki, Misa Yokoyama, et al.. (2016). Enhanced expression of semaphorin 3E is involved in the gastric cancer development. International Journal of Oncology. 49(3). 887–894. 16 indexed citations

Iijima, Katsunori, Tomoyuki Koike, Yasuhiko Abe, et al.. (2014). Association between the Body Mass Index and the Risk of Barrett's Esophagus in Japan. Digestion. 90(1). 1–9. 8 indexed citations

Oikawa, Tomoyuki, Naoki Asano, Akira Imatani, et al.. (2012). Gene polymorphisms of NOD1 and interleukin-8 influence the susceptibility to erosive esophagitis in Helicobacter pylori infected Japanese population. Human Immunology. 73(11). 1184–1189. 9 indexed citations

10.

Oikawa, Tomoyuki, Katsunori Iijima, Tomoyuki Koike, et al.. (2010). Deficient aldehyde dehydrogenase 2 is associated with increased risk for esophageal squamous cell carcinoma in the presence of gastric hypochlorhydria. Scandinavian Journal of Gastroenterology. 45(11). 1338–1344. 10 indexed citations

11.

Asonuma, Sho, Akira Imatani, Naoki Asano, et al.. (2009). Helicobacter pyloriinduces gastric mucosal intestinal metaplasia through the inhibition of interleukin-4-mediated HMG box protein Sox2 expression. American Journal of Physiology-Gastrointestinal and Liver Physiology. 297(2). G312–G322. 48 indexed citations

12.

Hatta, Waku, Shinji Kumagai, Tomoyuki Oikawa, et al.. (2005). [A case of curatively resected AFP producing gastric cancer that responded remarkably to 1 course of TS-1 and showed complete loss of multiple liver metastatic tumors].. PubMed. 32(6). 855–8. 7 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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