Masahiro Oka

4.7k total citations · 1 hit paper
102 papers, 3.6k citations indexed

About

Masahiro Oka is a scholar working on Molecular Biology, Oncology and Dermatology. According to data from OpenAlex, Masahiro Oka has authored 102 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Molecular Biology, 25 papers in Oncology and 20 papers in Dermatology. Recurrent topics in Masahiro Oka's work include melanin and skin pigmentation (15 papers), Protein Kinase Regulation and GTPase Signaling (11 papers) and Cancer and Skin Lesions (8 papers). Masahiro Oka is often cited by papers focused on melanin and skin pigmentation (15 papers), Protein Kinase Regulation and GTPase Signaling (11 papers) and Cancer and Skin Lesions (8 papers). Masahiro Oka collaborates with scholars based in Japan, United States and Germany. Masahiro Oka's co-authors include Masamitsu Ichihashi, Mizuho Fukunaga, Tsuyoshi Horikawa, T. Bito, Yasutomi Nishizuka, Arief Budiyanto, Keiichiro Tsuru, Masahito Ueda, Yoshinori Asaoka and Chikako Nishigori and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Journal of Clinical Oncology.

In The Last Decade

Masahiro Oka

95 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.

UV-induced skin damage

2003 774 citations Masamitsu Ichihashi, Masahito Ueda et al. Toxicology profile →

Peers

Countries citing papers authored by Masahiro Oka

Since Specialization

Citations

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

Fields of papers citing papers by Masahiro Oka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masahiro Oka

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

#	Work	Indexed citations
1	Localized Bullous Pemphigoid in a Patient with Acquired Reactive Perforating Collagenosis 2023 ·Case Reports in Dermatology ·Masahiro Oka	1
2	Treatments for alopecia areata: A systematic review and network meta‐analysis 2021 ·Dermatologic Therapy ·Takeshi Fukumoto, (unknown), (unknown), Masahiro Oka, Chikako Nishigori, Nobuyuki Horita	25
3	Implication of phototherapy for rare comorbidity of psoriasis and pemphigus foliaceus: Case report and review of literature 2020 ·Dermatologic Therapy ·Takeshi Fukumoto, Satoshi Nishiyama, Masahiro Oka, Chikako Nishigori	0
4	Cardiac Myxoma Caused by Fumarate Hydratase Gene Deletion in Patient With Cortisol-Secreting Adrenocortical Adenoma 2020 ·The Journal of Clinical Endocrinology & Metabolism ·Kentaro Suda, Hidenori Fukuoka, Yuto Yamazaki, Katsumi Shigemura, (unknown), Yukiko Odake, Ryusaku Matsumoto, Hironori Bando, Michiko Takahashi, Genzo Iguchi, Masato Fujisawa, Masahiro Oka, Katsuhiko Ono, Kazuo Chihara, Hironobu Sasano, Wataru Ogawa, Yutaka Takahashi	2
5	Comparing treatments for basal cell carcinoma in terms of long‐term treatment‐failure: a network meta‐analysis 2019 ·Journal of the European Academy of Dermatology and Venereology ·Takeshi Fukumoto, (unknown), Masahiro Oka, Nobuyuki Horita	9
6	Killian‐Jamieson diverticulum mimicking a thyroid nodule: A case report 2018 ·Journal of General and Family Medicine ·(unknown), (unknown), (unknown), Masahiro Oka, (unknown), (unknown), Kohei Taniguchi, (unknown), Akira Takasu	8
7	Role and Regulation of STAT3 Phosphorylation at Ser727 in Melanocytes and Melanoma Cells 2012 ·Journal of Investigative Dermatology ·(unknown), Masahiro Oka, Tetsushi Iwasaki, Yasuo Fukami, Chikako Nishigori	85
8	Altered phospholipid transfer protein gene expression and serum lipid profile by topotecan 2010 ·Biochemical Pharmacology ·Rudel A. Saunders, Kazuyuki Fujii, Leah Alabanza, Roald Ravatn, Tsunekazu Kita, Kazuya Kudoh, Masahiro Oka, Khew‐Voon Chin	2
9	12-O-Tetradecanoylphorbol-13-acetate Inhibits Melanoma Growth by Inactivation of STAT3 through Protein Kinase C-activated Tyrosine Phosphatase(s) 2009 ·Journal of Biological Chemistry ·Masahiro Oka, (unknown), (unknown), Tetsushi Iwasaki, Toshinori Bito, Toshiro Kageshita, Ken‐ichi Sato, Yasuo Fukami, Chikako Nishigori	9
10	Antiproliferative Activity of IL-27 on Melanoma 2008 ·The Journal of Immunology ·Takayuki Yoshimoto, Noriko Morishima, Izuru Mizoguchi, Motomu Shimizu, Hiroshi Nagai, Shuntaro Oniki, Masahiro Oka, Chikako Nishigori, Junichiro Mizuguchi	107
11	Protein Kinase C-βII Represses Hepatocyte Growth Factor-Induced Invasion by Preventing the Association of Adapter Protein Gab1 and Phosphatidylinositol 3-Kinase in Melanoma Cells 2007 ·Journal of Investigative Dermatology ·Masahiro Oka, Ushio Kikkawa, Chikako Nishigori	14
12	Mycosis fungoides presenting erythroderma and ulceration with rapid progress 2005 ·Skin Cancer ·Akiko Matsunaga, Toshinori Bito, (unknown), (unknown), Taro Masaki, Mizuho Fukunaga, Masahiro Oka, Masamitsu Ichihashi, Chikako Nishigori	0
13	Phosphatidylinositol 3-Kinase/Akt-Dependent and -Independent Protection Against Apoptosis in Normal Human Melanocytes 2004 ·Journal of Investigative Dermatology ·Masahiro Oka, (unknown), Mizuho Fukunaga, Toshinori Bito, Hiroshi Nagai, Chikako Nishigori	16
14	UV-induced skin damage breakdown → 2003 ·Toxicology ·Masamitsu Ichihashi, Masahito Ueda, Arief Budiyanto, T. Bito, Masahiro Oka, Mizuho Fukunaga, Keiichiro Tsuru, Tsuyoshi Horikawa	774
15	Dual regulation of phospholipase D1 by protein kinase C α in vivo 2002 ·Biochemical and Biophysical Research Communications ·Masahiro Oka, (unknown), Taro Okada, Shun‐ichi Nakamura, Hiroshi Nagai, Motoi Ohba, Toshio Kuroki, Ushio Kikkawa, Masamitsu Ichihashi	25
16	Gene Transfer of Secreted-Type Modified Interleukin-18 Gene to B16F10 Melanoma Cells Suppresses In Vivo Tumor Growth through Inhibition of Tumor Vessel Formation 2002 ·Journal of Investigative Dermatology ·Hiroshi Nagai, Tatsuya Horikawa, Masahiro Oka, Masamitsu Ichihashi, Isao Hara, Sadao Kamidono	30
17	Small GTPase Rab3A is Associated with Melanosomes in Melanoma Cells 2000 ·Pigment Cell Research ·(unknown), Tatsuya Horikawa, Ashok K. Chakraborty, Koichi Nakagawa, Hiroshi Itoh, Masahiro Oka, Yoko Funasaka, John M. Pawelek, Masamitsu Ichihashi	28
18	Tegafur‐induced photosensitivity — evaluation of provocation by UVB irradiation 1997 ·International Journal of Dermatology ·(unknown), Yoko Funasaka, Masahiro Oka, Masamitsu Ichihashi	8
19	Degradation of Phospholipids and Protein Kinase C Activation for the Control of Neuronal Functions 1992 ·Advances in experimental medicine and biology ·Tetsutaro Shinomura, Hiroyuki Mishima, (unknown), Yoshinori Asaoka, Kimihisa Yoshida, Masahiro Oka, Yasutomi Nishizuka	7
20	Polyclonal B-cell activation and immunosuppression induced by fraction derived from the surface of Trypanosoma gambiense 1986 ·Kiseichūgaku zasshi ·Masahiro Oka	1

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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