Rika Okamoto

607 total citations
14 papers, 469 citations indexed

About

Rika Okamoto is a scholar working on Immunology, Oncology and Genetics. According to data from OpenAlex, Rika Okamoto has authored 14 papers receiving a total of 469 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Immunology, 4 papers in Oncology and 3 papers in Genetics. Recurrent topics in Rika Okamoto's work include Reproductive System and Pregnancy (4 papers), Chemokine receptors and signaling (3 papers) and Reproductive Biology and Fertility (2 papers). Rika Okamoto is often cited by papers focused on Reproductive System and Pregnancy (4 papers), Chemokine receptors and signaling (3 papers) and Reproductive Biology and Fertility (2 papers). Rika Okamoto collaborates with scholars based in Japan, United States and China. Rika Okamoto's co-authors include Takashi Nagasawa, Hideharu Kanzaki, Hidetaka Okada, Katsuhiko Yasuda, Kenji Kawabata, Hiroshi Kawamoto, Yoshimoto Katsura, Koji Tokoyoda, Takeshi Egawa and Toshiaki Ara and has published in prestigious journals such as Blood, Immunity and Analytical Chemistry.

In The Last Decade

Rika Okamoto

14 papers receiving 460 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Rika Okamoto Japan 9 229 170 156 66 65 14 469
Maria Corallo Italy 8 106 0.5× 300 1.8× 182 1.2× 51 0.8× 26 0.4× 11 455
Lihua Sun China 13 166 0.7× 84 0.5× 90 0.6× 35 0.5× 111 1.7× 18 348
Hua Linghu China 13 61 0.3× 105 0.6× 251 1.6× 59 0.9× 28 0.4× 34 415
Cristina M. Contreras United States 9 106 0.5× 175 1.0× 365 2.3× 56 0.8× 13 0.2× 9 596
Kayo Fujisawa Japan 12 104 0.5× 143 0.8× 243 1.6× 57 0.9× 12 0.2× 18 508
Timothy Sadlon Australia 15 240 1.0× 100 0.6× 278 1.8× 12 0.2× 57 0.9× 30 567
Budiman Kharma Japan 10 273 1.2× 335 2.0× 165 1.1× 115 1.7× 9 0.1× 12 577
Claude Laplante Canada 11 202 0.9× 238 1.4× 237 1.5× 148 2.2× 15 0.2× 12 577
Sonja E. Gustin Australia 10 212 0.9× 169 1.0× 406 2.6× 25 0.4× 106 1.6× 13 676
Ron Rye United Kingdom 6 90 0.4× 158 0.9× 121 0.8× 119 1.8× 7 0.1× 8 383

Countries citing papers authored by Rika Okamoto

Since Specialization
Citations

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

Fields of papers citing papers by Rika Okamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Rika Okamoto

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

All Works

14 of 14 papers shown
1.
Okamoto, Rika, Ryosuke Kojima, & Masahiko Nakatsui. (2023). Toward AI-supported evaluation for safety control measures against near-miss events in pharmaceutical products. Safety Science. 168. 106314–106314. 2 indexed citations
2.
Inoue, Ken‐ichi, Jianxin Mao, Rika Okamoto, et al.. (2023). Development of Line-Detected UV–Vis Absorption Microscope and Its Application to Quantitative Evaluation of Lithium Surface Reactivity. Analytical Chemistry. 95(9). 4550–4555. 1 indexed citations
3.
4.
Ishihara, Masaharu, Masanori Asakura, Kiyoshi Hibi, et al.. (2022). Evolocumab for prevention of microvascular dysfunction in patients undergoing percutaneous coronary intervention: the randomised, open-label EVOCATION trial. EuroIntervention. 18(8). e647–e655. 13 indexed citations
5.
6.
Ohnishi, Shunsuke, Hiroshi Hayashi, Izumi Kumagai, et al.. (2018). Evaluation of amnion-derived mesenchymal stem cells for treatment-resistant moderate Crohn’s disease: study protocol for a phase I/II, dual-centre, open-label, uncontrolled, dose–response trial. BMJ Open Gastroenterology. 5(1). e000206–e000206. 9 indexed citations
7.
Koizumi, Akira, Yoshinori Ohta, Mio Sakuma, et al.. (2017). Differences in Adverse Drug Events Among Pediatric Patients With and Without Cancer: Sub-Analysis of a Retrospective Cohort Study. Drugs - Real World Outcomes. 4(3). 167–173. 2 indexed citations
8.
Nishigaki, Akemi, et al.. (2012). The concentration of human follicular fluid stromal cell-derived factor-1 is correlated with luteinization in follicles. Gynecological Endocrinology. 29(3). 230–234. 18 indexed citations
9.
Okada, Hidetaka, Rika Okamoto, Tomoko Tsuzuki, et al.. (2011). Progestins inhibit estradiol-induced vascular endothelial growth factor and stromal cell–derived factor 1 in human endometrial stromal cells. Fertility and Sterility. 96(3). 786–791. 34 indexed citations
10.
11.
Nishigaki, Akemi, Hidetaka Okada, Rika Okamoto, et al.. (2010). Concentrations of stromal cell-derived factor-1 and vascular endothelial growth factor in relation to the diameter of human follicles. Fertility and Sterility. 95(2). 742–746. 35 indexed citations
12.
Ara, Toshiaki, Koji Tokoyoda, Rika Okamoto, Pandelakis A. Koni, & Takashi Nagasawa. (2004). The role of CXCL12 in the organ-specific process of artery formation. Blood. 105(8). 3155–3161. 88 indexed citations
13.
Okamoto, Rika, Masaya Ueno, Yoshihiro Yamada, et al.. (2004). Hematopoietic cells regulate the angiogenic switch during tumorigenesis. Blood. 105(7). 2757–2763. 60 indexed citations
14.
Egawa, Takeshi, Kenji Kawabata, Hiroshi Kawamoto, et al.. (2001). The Earliest Stages of B Cell Development Require a Chemokine Stromal Cell-Derived Factor/Pre-B Cell Growth-Stimulating Factor. Immunity. 15(2). 323–334. 164 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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