Ritsuko Oikawa

568 total citations
31 papers, 398 citations indexed

About

Ritsuko Oikawa is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Molecular Biology. According to data from OpenAlex, Ritsuko Oikawa has authored 31 papers receiving a total of 398 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 13 papers in Pulmonary and Respiratory Medicine and 8 papers in Molecular Biology. Recurrent topics in Ritsuko Oikawa's work include Helicobacter pylori-related gastroenterology studies (11 papers), Gastric Cancer Management and Outcomes (11 papers) and Epigenetics and DNA Methylation (6 papers). Ritsuko Oikawa is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (11 papers), Gastric Cancer Management and Outcomes (11 papers) and Epigenetics and DNA Methylation (6 papers). Ritsuko Oikawa collaborates with scholars based in Japan, United States and Sweden. Ritsuko Oikawa's co-authors include Fumio Itoh, Yoshiyuki Watanabe, Hiroyuki Yamamoto, Tadateru Maehata, Minoru Toyota, Hiroshi Yasuda, Ryo Morita, Tetsuya Hiraishi, Hiromu Suzuki and Yoshinori Sato and has published in prestigious journals such as Journal of Clinical Oncology, Gastroenterology and PLoS ONE.

In The Last Decade

Ritsuko Oikawa

29 papers receiving 392 citations

Peers

Ritsuko Oikawa

SURGE

PRM

ONCOL

Julien Fernandes France

Qiong-Lan Tang China

Pierre Sohier France

Selena Y. Lin United States

Farhad Babaei Iran

Guangfa Zhao China

Siri Chau‐in Thailand

Mauro Alderisio Italy

A. Varnai Germany

Keiko Ueda Japan

Julien Fernandes France

Ritsuko Oikawa

140 ×0.7

66 ×0.5

78 ×0.8

SURGE

42 ×0.5

PRM

65 ×0.9

ONCOL

Citations per year, relative to Ritsuko Oikawa Ritsuko Oikawa (= 1×) peers Julien Fernandes

Countries citing papers authored by Ritsuko Oikawa

Since Specialization

Citations

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

Fields of papers citing papers by Ritsuko Oikawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ritsuko Oikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Ritsuko Oikawa. A scholar is included among the top collaborators of Ritsuko 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 Ritsuko Oikawa. Ritsuko 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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20 of 20 papers shown

Yamamoto, Hiroyuki, Hiroyuki Arai, Ritsuko Oikawa, et al.. (2024). The Molecular Landscape of Gastric Cancers for Novel Targeted Therapies from Real-World Genomic Profiling. Targeted Oncology. 19(3). 459–471.

Tsuda, Momoko, Yoshiyuki Watanabe, Ritsuko Oikawa, et al.. (2024). Impact of mixed‐infection rate of clarithromycin‐susceptible and clarithromycin‐resistant Helicobacter pylori strains on the success rate of clarithromycin‐based eradication treatment. Helicobacter. 29(2). e13062–e13062. 3 indexed citations

Matsuo, Yasumasa, Ritsuko Oikawa, Y. Noguchi, et al.. (2022). Visceral disseminated varicella-zoster virus infection in an immunocompetent host. Clinical Journal of Gastroenterology. 15(3). 568–574. 7 indexed citations

Ono, Shoko, Yoshiyuki Watanabe, Hiroyuki Yamamoto, et al.. (2022). Long‐term changes in aberrant DNA methylation and gastritis after Helicobacter pylori eradication focused on metachronous gastric cancer. Helicobacter. 27(5). e12915–e12915. 1 indexed citations

Tsuda, Momoko, Yoshiyuki Watanabe, Ritsuko Oikawa, et al.. (2022). Clinical evaluation of a novel molecular diagnosis kit for detecting Helicobacter pylori and clarithromycin‐resistant using intragastric fluid. Helicobacter. 27(6). e12933–e12933. 12 indexed citations

Watanabe, Yoshiyuki, Ritsuko Oikawa, Yasumasa Matsuo, et al.. (2021). Combination of artificial intelligence‐based endoscopy and miR148a methylation for gastric indefinite dysplasia diagnosis. Journal of Clinical Laboratory Analysis. 36(1). 2 indexed citations

Watanabe, Yoshiyuki, Ritsuko Oikawa, Toshio Suzuki, et al.. (2021). Evaluation of a new point‐of‐care quantitative reverse transcription polymerase chain test for detecting severe acute respiratory syndrome coronavirus 2. Journal of Clinical Laboratory Analysis. 35(10). e23992–e23992. 5 indexed citations

Matsuo, Yasumasa, Hiroyuki Yamamoto, Yoshinori Sato, et al.. (2018). GNAS-mutated carcinoma arising from gastric foveolar metaplasia in the duodenum after 9 years of observation. Clinical Journal of Gastroenterology. 11(5). 391–395. 5 indexed citations

Yasuda, Hiroshi, Ritsuko Oikawa, Chiaki Okuse, et al.. (2017). Serum monomeric laminin‐γ2 as a novel biomarker for hepatocellular carcinoma. Cancer Science. 108(7). 1432–1439. 17 indexed citations

10.

Yamamoto, Hiroyuki, Yoshiyuki Watanabe, Ritsuko Oikawa, et al.. (2016). BARHL2 Methylation Using Gastric Wash DNA or Gastric Juice Exosomal DNA is a Useful Marker For Early Detection of Gastric Cancer in an H. pylori -Independent Manner. Clinical and Translational Gastroenterology. 7(7). e184–e184. 71 indexed citations

11.

Miyamoto, Shuichi, Yoshiyuki Watanabe, Ritsuko Oikawa, et al.. (2016). Analysis of Helicobacter pylori genotypes in clinical gastric wash samples. Tumor Biology. 37(8). 10123–10132. 9 indexed citations

12.

Watanabe, Yoshiyuki, Hiroyuki Yamamoto, Ritsuko Oikawa, et al.. (2015). DNA methylation at hepatitis B viral integrants is associated with methylation at flanking human genomic sequences. Genome Research. 25(3). 328–337. 27 indexed citations

13.

Watanabe, Yoshiyuki, Ritsuko Oikawa, Hiroyuki Yamamoto, & Fumio Itoh. (2015). Tu1910 The BARHL2 Gene Is Silenced by Promoter Hypermethylation in Early Stage of Gastric Cancer. Gastroenterology. 148(4). S–933. 1 indexed citations

14.

Nagai, Yoshio, Ritsuko Oikawa, Yuta Nakamura, et al.. (2013). Differing effects of liraglutide on gastric emptying in Japanese patients with type 2 diabetes. Diabetes Obesity and Metabolism. 16(6). 573–576. 13 indexed citations

15.

Watanabe, Yoshiyuki, Ichiro Maeda, Ritsuko Oikawa, et al.. (2013). Aberrant DNA methylation status of DNA repair genes in breast cancer treated with neoadjuvant chemotherapy. Genes to Cells. 18(12). 1120–1130. 23 indexed citations

16.

Watanabe, Yoshiyuki, Yosuke Yamada, Yuka Ogata, et al.. (2012). Characterization of DNA hypermethylation in two cases of peritoneal mesothelioma. Tumor Biology. 33(6). 2031–2040. 13 indexed citations

17.

Watanabe, Yoshiyuki, Yoshinori Sato, Tetsuya Hiraishi, et al.. (2011). Hypermethylation of Sox17 gene is useful as a molecular diagnostic application in early gastric cancer. Tumor Biology. 33(2). 383–393. 44 indexed citations

18.

Baba, S., Yoshiyuki Watanabe, Ritsuko Oikawa, et al.. (2011). Gastric Wash-Based Molecular Testing for Antibiotic Resistance in Helicobacter pylori. Digestion. 84(4). 299–305. 15 indexed citations

19.

Watanabe, Yoshiyuki, Ryan Castoro, Hyun Soo Kim, et al.. (2011). Frequent Alteration of MLL3 Frameshift Mutations in Microsatellite Deficient Colorectal Cancer. PLoS ONE. 6(8). e23320–e23320. 58 indexed citations

20.

Alves, Venâncio Avancini Ferreira, et al.. (2007). Fulminant hepatic failure in northern Brazil: morphological, immunohistochemical and pathogenic aspects of Lábrea hepatitis and yellow fever. Transactions of the Royal Society of Tropical Medicine and Hygiene. 101(8). 831–839. 8 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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