Masami Takeyama

2.0k total citations
85 papers, 1.5k citations indexed

About

Masami Takeyama is a scholar working on Reproductive Medicine, Surgery and Molecular Biology. According to data from OpenAlex, Masami Takeyama has authored 85 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Reproductive Medicine, 27 papers in Surgery and 25 papers in Molecular Biology. Recurrent topics in Masami Takeyama's work include Sperm and Testicular Function (29 papers), Sexual Differentiation and Disorders (21 papers) and Pelvic floor disorders treatments (20 papers). Masami Takeyama is often cited by papers focused on Sperm and Testicular Function (29 papers), Sexual Differentiation and Disorders (21 papers) and Pelvic floor disorders treatments (20 papers). Masami Takeyama collaborates with scholars based in Japan and United States. Masami Takeyama's co-authors include Äkïhïko Okuyama, Hideki Fujioka, Akira Tsujimura, Yasushi Miyagawa, Minoru Koga, Kiyomi Matsumiya, Tetsuya Takao, Mikio Namiki, K Matsumiya and Akira Tohda and has published in prestigious journals such as Endocrinology, The Journal of Urology and Human Reproduction.

In The Last Decade

Masami Takeyama

83 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masami Takeyama Japan 19 863 561 351 326 316 85 1.5k
M. Fujisawa Japan 21 466 0.5× 314 0.6× 119 0.3× 219 0.7× 219 0.7× 94 1.3k
Karen D. Bradshaw United States 15 511 0.6× 356 0.6× 351 1.0× 246 0.8× 129 0.4× 36 1.4k
James N. Anasti United States 19 936 1.1× 543 1.0× 496 1.4× 650 2.0× 119 0.4× 44 1.7k
Christoph Keck Germany 23 954 1.1× 351 0.6× 171 0.5× 571 1.8× 84 0.3× 110 1.7k
Riccardo Selice Italy 27 993 1.2× 826 1.5× 664 1.9× 552 1.7× 206 0.7× 59 2.0k
Ko-En Huang Taiwan 18 473 0.5× 423 0.8× 463 1.3× 261 0.8× 103 0.3× 22 1.6k
José Antônio Miguel Marcondes Brazil 20 529 0.6× 746 1.3× 307 0.9× 263 0.8× 82 0.3× 57 1.4k
Kayo Katayama United States 14 793 0.9× 358 0.6× 256 0.7× 686 2.1× 166 0.5× 38 1.5k
Natan Bar‐Chama United States 19 458 0.5× 273 0.5× 119 0.3× 304 0.9× 146 0.5× 64 1.1k
M. Vignali Italy 35 2.5k 2.9× 256 0.5× 195 0.6× 488 1.5× 429 1.4× 120 3.3k

Countries citing papers authored by Masami Takeyama

Since Specialization
Citations

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

Fields of papers citing papers by Masami Takeyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masami Takeyama

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

All Works

20 of 20 papers shown
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Kato, Chikako, et al.. (2024). Long‐term outcomes of transvaginal mesh surgery for pelvic organ prolapse at a single center in Japan. International Journal of Urology. 32(3). 251–257. 1 indexed citations
3.
Miyake, Noriko, Masami Takeyama, Hideko Isozaki, et al.. (2024). A novel molecular target, superoxide dismutase 1, in ALK inhibitor-resistant lung cancer cells, detected through proteomic analysis. Experimental Cell Research. 442(2). 114266–114266. 1 indexed citations
4.
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Miyake, Noriko, Nobuaki Ochi, Hiromichi Yamane, et al.. (2021). Targeting ROR1 in combination with osimertinib in EGFR mutant lung cancer cells. Experimental Cell Research. 409(2). 112940–112940. 4 indexed citations
6.
Kato, Kumiko, et al.. (2020). Techniques of transvaginal mesh prolapse surgery in Japan, and the comparison of complication rates by surgeons’ specialty and experience. International Journal of Urology. 27(11). 996–1000. 16 indexed citations
7.
Miyake, Noriko, Nobuaki Ochi, Hiromichi Yamane, et al.. (2019). Targeting ROR1 in combination with pemetrexed in malignant mesothelioma cells. Lung Cancer. 139. 170–178. 6 indexed citations
8.
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Yamane, Hiromichi, Hideko Isozaki, Masami Takeyama, et al.. (2015). Programmed cell death protein 1 and programmed death-ligand 1 are expressed on the surface of some small-cell lung cancer lines.. Europe PMC (PubMed Central). 5(4). 1553–7. 27 indexed citations
10.
11.
Okuda, Hidenobu, Masaki Yamanaka, Toshio Kimura, & Masami Takeyama. (2009). A CASE OF MULTIPLE ENCRUSTED STONES ON THE URETERAL STENT LEFT FOR 7 YEARS; THE EFFICACY OF EXTRACTING THE URETERAL STENT ON TRANSURETHRAL LITHOTRIPSY. The Japanese Journal of Urology. 100(6). 635–639. 8 indexed citations
12.
Tsujimura, Akira, Yasushi Miyagawa, Kazutoshi Fujita, et al.. (2006). 1408: Salvage Microdissection Testicular Sperm Extraction after Failed Conventional Tese for Patients with Non-Obstructive Azoospermia. The Journal of Urology. 175(4S). 454–454. 1 indexed citations
13.
Tsujimura, Akira, Yasushi Miyagawa, Tetsuya Takao, et al.. (2005). Impact of age, follicle stimulating hormone and Johnsen's score on successful sperm retrieval by microdissection testicular sperm extraction. Reproductive Medicine and Biology. 4(1). 53–57. 3 indexed citations
14.
Kiuchi, Hiroshi, Minoru Koga, Toshiaki Hirai, et al.. (2005). PREDICTIVE FACTORS ASSOCIATED WITH SUCCESSFUL VARICOCELE REPAIR. The Japanese Journal of Urology. 96(4). 480–486. 6 indexed citations
15.
Tsujimura, Akira, Masaki Yamanaka, Tôru Takahashi, et al.. (2002). The clinical studies of sildenafil for the ageing male. International Journal of Andrology. 25(1). 28–33. 20 indexed citations
16.
Nakamura, Yoshihiro, Minoru Koga, Nobuyuki Kondoh, et al.. (2001). Chromosomal variants among 1790 infertile men. International Journal of Urology. 8(2). 49–52. 72 indexed citations
17.
Koide, Michio, Masami Takeyama, Takashi Shinzato, et al.. (1999). Evaluation of Urinary Antigen Detection Methods for Rapid Diagnosis of Legionella pneumonia. Kansenshogaku zasshi. 73(5). 421–428. 4 indexed citations
18.
Huang, Kai, S Takahara, Toshiaki Kinouchi, et al.. (1997). Alanyl Aminopeptidase from Human Seminal Plasma: Purification, Characterization, and Immunohistochemical Localization in the Male Genital Tract. The Journal of Biochemistry. 122(4). 779–787. 34 indexed citations
19.
Kondoh, Nobuyuki, E. Koh, Toshihiko Matsui, et al.. (1990). Improvement of Semen Characteristics After Surgical Repair of Bilateral Testicular Varicocele as Compared to Unilateral Varicocele Patients. Archives of Andrology. 24(1). 61–67. 3 indexed citations
20.
Nakamura, Masahiro, Norio Nonomura, Mikio Namiki, et al.. (1989). TEMPERATURE INFLUENCE ON HUMAN TESTICULAR FUNCTION. The Japanese Journal of Urology. 80(9). 1362–1366. 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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