Toshihiro Okamoto

4.6k total citations · 1 hit paper
190 papers, 3.6k citations indexed

About

Toshihiro Okamoto is a scholar working on Surgery, Biomedical Engineering and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Toshihiro Okamoto has authored 190 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Surgery, 39 papers in Biomedical Engineering and 26 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Toshihiro Okamoto's work include Transplantation: Methods and Outcomes (51 papers), Mechanical Circulatory Support Devices (34 papers) and Organ Transplantation Techniques and Outcomes (29 papers). Toshihiro Okamoto is often cited by papers focused on Transplantation: Methods and Outcomes (51 papers), Mechanical Circulatory Support Devices (34 papers) and Organ Transplantation Techniques and Outcomes (29 papers). Toshihiro Okamoto collaborates with scholars based in Japan, United States and Egypt. Toshihiro Okamoto's co-authors include Masaki Nishimura, Jun Kimura, Shigenobu Nakamura, Sadao Katayama, Yoshiya Kawaguchi, Shuh Narumiya, Masafumi Taniwaki, Miho Inoue, Hideshi Kawakami and Ichiro Akiguchi and has published in prestigious journals such as Nature Genetics, Journal of Clinical Oncology and SHILAP Revista de lepidopterología.

In The Last Decade

Toshihiro Okamoto

177 papers receiving 3.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

CAG expansions in a novel gene for Machado-Joseph disease at chromosome 14q32.1

1994 1.4k citations Toshihiro Okamoto et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Toshihiro Okamoto Japan	26	1.7k	1.3k	637	554	281	190	3.6k
Horng‐Jyh Harn Taiwan	37	2.0k 1.2×	387 0.3×	704 1.1×	281 0.5×	449 1.6×	183	4.7k
Richard V. Benya United States	38	1.9k 1.1×	1.4k 1.1×	648 1.0×	323 0.6×	240 0.9×	89	4.4k
Jin Yu China	41	2.2k 1.3×	341 0.3×	351 0.6×	217 0.4×	502 1.8×	153	5.0k
Masahiko Tanaka Japan	29	727 0.4×	435 0.3×	229 0.4×	436 0.8×	128 0.5×	128	2.5k
Dai H. Chung United States	40	1.9k 1.1×	316 0.2×	868 1.4×	900 1.6×	295 1.0×	155	4.0k
Hui Liao China	36	1.5k 0.9×	291 0.2×	821 1.3×	120 0.2×	728 2.6×	107	4.6k
Anne Lombès France	53	7.1k 4.2×	1.0k 0.8×	309 0.5×	814 1.5×	171 0.6×	145	9.5k
Vikas Kumar United States	24	1.4k 0.8×	393 0.3×	571 0.9×	66 0.1×	260 0.9×	70	2.7k
Yoshinori Kamisaki Japan	39	2.3k 1.4×	579 0.4×	292 0.5×	105 0.2×	478 1.7×	115	4.5k
Haruaki Nakaya Japan	38	4.3k 2.6×	889 0.7×	1.2k 1.8×	190 0.3×	378 1.3×	183	8.5k

Countries citing papers authored by Toshihiro Okamoto

Since Specialization

Citations

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

Fields of papers citing papers by Toshihiro Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshihiro Okamoto

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

Yoshimitsu, Kitaro, et al.. (2025). Classification of Oral Cancer and Leukoplakia Using Oral Images and Deep Learning with Multi-Scale Random Crop Self-Training. 780–787.

Morikawa, Hiromasa, et al.. (2024). How Does Cancer Occur? How Should It Be Treated? Treatment from the Perspective of Alkalization Therapy Based on Science-Based Medicine. Biomedicines. 12(10). 2197–2197. 1 indexed citations

D’Avino, Gabriele, Guillaume Schweicher, Jeff Armstrong, et al.. (2023). Untangling the Fundamental Electronic Origins of Non‐Local Electron–Phonon Coupling in Organic Semiconductors. Advanced Functional Materials. 33(38). 7 indexed citations

Kosaka, Ryo, Daisuke Sakota, Hiromichi Niikawa, et al.. (2022). Lung thermography during the initial reperfusion period to assess pulmonary function in cellular ex vivo lung perfusion. Artificial Organs. 46(8). 1522–1532. 5 indexed citations

Hoffmann, Roland F., Caroline Van De Wauwer, Wim Timens, et al.. (2022). Establishing an economical and widely accessible donation after circulatory death animal abattoir model for lung research using ex vivo lung perfusion. Artificial Organs. 46(11). 2179–2190. 4 indexed citations

Iwata, Takanori, et al.. (2022). Novel Cell Therapy Using Mesenchymal Stromal Cell Sheets for Medication-Related Osteonecrosis of the Jaw. Frontiers in Bioengineering and Biotechnology. 10. 902349–902349. 4 indexed citations

Suzuki, Mayumi, Toshihiro Okamoto, Kentaro Matsui, et al.. (2020). Efficacy of oral myofunctional therapy in middle‐aged to elderly patients with obstructive sleep apnoea treated with continuous positive airway pressure. Journal of Oral Rehabilitation. 48(2). 176–182. 17 indexed citations

Umetani, Keiji, Daryl O. Schwenke, James T. Pearson, et al.. (2020). Biomedical Micro-CT and Micro-angiography Systems Using High Megapixel Digital Single-lens Reflex Cameras and Synchrotron Radiation. 128–134. 1 indexed citations

Sasaki, Ryo & Toshihiro Okamoto. (2020). Autoimmune blisters in the gingiva. BMJ Case Reports. 13(9). e238011–e238011.

10.

Kitai, Takeshi, Toshihiro Okamoto, Chisato Miyakoshi, et al.. (2019). Impact of combined heart and lung transplantation on bronchiolitis obliterans syndrome, cardiac allograft vasculopathy, and long-term survival. The Journal of Heart and Lung Transplantation. 38(11). 1170–1177. 7 indexed citations

11.

Okamoto, Toshihiro, et al.. (2018). Re-operative Coronary Artery Bypass Grafting: A Review of Changing Pattern and Outcomes. 4(3). 1 indexed citations

12.

Liu, Qiang, Ahmed Nassar, Laura D. Buccini, et al.. (2017). Lipid metabolism and functional assessment of discarded human livers with steatosis undergoing 24 hours of normothermic machine perfusion. Liver Transplantation. 24(2). 233–245. 47 indexed citations

13.

Omasa, Mitsugu, Toshihiro Okamoto, Tsuyoshi Shoji, et al.. (2006). A case of primary tracheal resection and reconstruction with suprahyoid release for adenoid cystic carcinoma of the trachea. The Journal of the Japanese Association for Chest Surgery. 20(7). 928–932.

14.

Yagi, Junji, Yutaka Arimura, Umberto Dianzani, et al.. (2003). Regulatory Roles of IL-2 and IL-4 in H4/Inducible Costimulator Expression on Activated CD4+ T Cells During Th Cell Development. The Journal of Immunology. 171(2). 783–794. 31 indexed citations

15.

Okamoto, Toshihiro, Atsuko Hara, & Okio Hino. (2003). Down‐regulation of cyclooxygenase‐2 expression but up‐regulation of cyclooxygenase‐1 in renal carcinomas of the Eker (TSC2 gene mutant) rat model. Cancer Science. 94(1). 22–25. 14 indexed citations

16.

Okamoto, Toshihiro, Kazunori Kajino, & Okio Hino. (2001). Hepatoprotective Drugs for the Treatment of Virus-Induced Chronic Hepatitis: From Hypercarcinogenic State to Hypocarcinogenic State. The Japanese Journal of Pharmacology. 87(3). 177–180. 17 indexed citations

17.

Sindhu, Ram K., Hironori Sakai, Toshihiro Okamoto, & Yutaka Kikkawa. (1996). Differential effect of interleukin-1α on rat hepatic cytochrome P450 monooxygenases. Toxicology. 114(1). 37–46. 9 indexed citations

18.

Okamoto, Toshihiro, Masato Mitsuhashi, Ichiro Fujita, Ram K. Sindhu, & Yutaka Kikkawa. (1993). Induction of Cytochrome P450 1A1 and 1A2 by Hyperoxia. Biochemical and Biophysical Research Communications. 197(2). 878–885. 77 indexed citations

19.

Sakai, Hironori, Toshihiro Okamoto, Reiko Yamamoto, Ram K. Sindhu, & Yutaka Kikkawa. (1992). Suppressive effect of interleukin-1 on pulmonary cytochrome P450 and superoxide anion production. Biochemical and Biophysical Research Communications. 185(3). 1083–1090. 7 indexed citations

20.

Shibata, Isao, et al.. (1988). Proventriculus and Gizzard Lesion in Embryos and Chicks of Broiler. Journal of the Japan Veterinary Medical Association. 41(11). 795–799. 2 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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