T. Okunaka

690 total citations
17 papers, 511 citations indexed

About

T. Okunaka is a scholar working on Pulmonary and Respiratory Medicine, Biomedical Engineering and Molecular Biology. According to data from OpenAlex, T. Okunaka has authored 17 papers receiving a total of 511 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Pulmonary and Respiratory Medicine, 4 papers in Biomedical Engineering and 3 papers in Molecular Biology. Recurrent topics in T. Okunaka's work include Photodynamic Therapy Research Studies (13 papers), Lung Cancer Diagnosis and Treatment (7 papers) and Nanoplatforms for cancer theranostics (4 papers). T. Okunaka is often cited by papers focused on Photodynamic Therapy Research Studies (13 papers), Lung Cancer Diagnosis and Treatment (7 papers) and Nanoplatforms for cancer theranostics (4 papers). T. Okunaka collaborates with scholars based in Japan and United States. T. Okunaka's co-authors include H. Kato, Hironari Kato, C Konaka, Kiyoyuki Furuse, Takeshi Horai, Kaoru Kubota, M. Fukuoka, Y Kusunoki, Nobuhiro Kodama and Nobuhide Takifuji and has published in prestigious journals such as Journal of Clinical Oncology, Lung Cancer and Lasers in Surgery and Medicine.

In The Last Decade

T. Okunaka

17 papers receiving 481 citations

Peers

T. Okunaka

PRM

SURGE

ONCOL

C Konaka Japan

Sally Thorpe United Kingdom

T Misaki Japan

Taichirou Ishizumi Japan

Gunter Thomas United States

Yoshiyuki Hiraki Japan

M. D. Slooter Netherlands

Denis Gilmore United States

C. S. Loh United Kingdom

Melissa Culligan United States

C Konaka Japan

T. Okunaka

383 ×0.9

PRM

151 ×0.7

112 ×1.0

SURGE

102 ×1.4

ONCOL

92 ×1.8

Citations per year, relative to T. Okunaka T. Okunaka (= 1×) peers C Konaka

Countries citing papers authored by T. Okunaka

Since Specialization

Citations

This map shows the geographic impact of T. Okunaka'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 T. Okunaka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Okunaka more than expected).

Fields of papers citing papers by T. Okunaka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Okunaka

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

All Works

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17 of 17 papers shown

Ohtani, Keishi, Jitsuo Usuda, Shuji Ichinose, et al.. (2008). High expression of GADD-45α and VEGF induced tumor recurrence via upregulation of IL-2 after photodynamic therapy using NPe6. International Journal of Oncology. 32(2). 397–403. 18 indexed citations

Okunaka, T., Hidenari Hirata, Keishi Ohtani, et al.. (2007). A possible relationship between the anti-cancer potency of photodynamic therapy using the novel photosensitizer ATX-s10-Na(II) and expression of the vascular endothelial growth factor in vivo. Oncology Reports. 18(3). 679–83. 7 indexed citations

Usuda, Jitsuo, Tatsuo Ohira, Yasuyo Suga, et al.. (2007). Breast cancer resistance protein (BCRP) affected acquired resistance to gefitinib in a “never-smoked” female patient with advanced non-small cell lung cancer. Lung Cancer. 58(2). 296–299. 29 indexed citations

Kato, H., Jitsuo Usuda, T. Okunaka, et al.. (2006). Basic and clinical research on photodynamic therapy at Tokyo Medical University Hospital. Lasers in Surgery and Medicine. 38(5). 371–375. 50 indexed citations

Usuda, Jitsuo, H. Kato, T. Okunaka, et al.. (2006). Photodynamic therapy using Laserphyrin for centrally located early stage lung cancer. Journal of Clinical Oncology. 24(18_suppl). 7229–7229. 6 indexed citations

Okunaka, T., et al.. (2001). [Preoperative PDT for early stage lung cancer accompanied with infiltration to the central airway].. PubMed. 54(11). 957–61. 3 indexed citations

Okunaka, T., Kenei Furukawa, Takaaki Tsuchida, et al.. (2000). Enhanced apoptotic response to photodynamic therapy after IL-6 transfection. Lung Cancer. 29(1). 186–186. 1 indexed citations

Ikeda, Norihiko, H. Honda, T. Okunaka, et al.. (1999). Early Detection of Bronchial Lesions Using Lung Imaging Fluorescence Endoscope. Diagnostic and therapeutic endoscopy. 5(2). 85–90. 35 indexed citations

Yamamoto, Yoshiharu, Hiroshi Shibuyà, T. Okunaka, Koki Aizawa, & H. Kato. (1999). Fibrin Plugging as a Cause of Microcirculatory Occlusion During Photodynamic Therapy. Lasers in Medical Science. 14(2). 129–135. 33 indexed citations

10.

Kato, Hironari, et al.. (1996). Photodynamic Therapy for Early Stage Bronchogenic Carcinoma. Journal of Clinical Laser Medicine & Surgery. 14(5). 235–238. 97 indexed citations

11.

Hirano, Takashi, C Konaka, S Okada, et al.. (1996). Endoscopic Diagnosis and Treatment of a Case of Respiratory Papillomatosis. Diagnostic and therapeutic endoscopy. 3(3). 183–187. 1 indexed citations

12.

Ikeda, Norihiko, T. Okunaka, Kinya Furukawa, et al.. (1996). Early Localization of Bronchogenic Cancerous/Precancerous Lesions With Lung Imaging Fluorescence Endoscope. Diagnostic and therapeutic endoscopy. 3(4). 197–201. 21 indexed citations

13.

Konaka, C, T. Okunaka, Kinya Furukawa, Harumasa Sakai, & H. Kato. (1996). [Photodynamic therapy for multiple primary lung cancer].. PubMed. 23(1). 31–5. 1 indexed citations

14.

Yamamoto, Hideki, T. Okunaka, Marc L. Eckhäuser, et al.. (1995). Photofrin Photosensitization. Correlation of Photofrin:Erythrocyte Binding Processes with Photolysis. International Journal of Radiation Biology. 68(1). 37–46. 1 indexed citations

15.

Kato, H., et al.. (1994). Photodynamic Effect Using a Diode Laser with Mono- L -aspartyl Chlorin e6 (NPe6) for Implanted Mouse Tumor. Journal of Clinical Laser Medicine & Surgery. 12(4). 211–213. 2 indexed citations

16.

Furuse, Kiyoyuki, M. Fukuoka, H. Kato, et al.. (1993). A prospective phase II study on photodynamic therapy with photofrin II for centrally located early-stage lung cancer. The Japan Lung Cancer Photodynamic Therapy Study Group.. Journal of Clinical Oncology. 11(10). 1852–1857. 201 indexed citations

17.

Furuse, Kiyoyuki, T. Okunaka, Harumasa Sakai, et al.. (1993). [Photodynamic therapy (PDT) in roentgenographically occult lung cancer by photofrin II and excimer dye laser].. PubMed. 20(10). 1369–74. 5 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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