Hidetaka Okada

4.1k total citations · 1 hit paper
123 papers, 3.0k citations indexed

About

Hidetaka Okada is a scholar working on Immunology, Reproductive Medicine and Obstetrics and Gynecology. According to data from OpenAlex, Hidetaka Okada has authored 123 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Immunology, 39 papers in Reproductive Medicine and 28 papers in Obstetrics and Gynecology. Recurrent topics in Hidetaka Okada's work include Reproductive System and Pregnancy (34 papers), Endometriosis Research and Treatment (30 papers) and Endometrial and Cervical Cancer Treatments (17 papers). Hidetaka Okada is often cited by papers focused on Reproductive System and Pregnancy (34 papers), Endometriosis Research and Treatment (30 papers) and Endometrial and Cervical Cancer Treatments (17 papers). Hidetaka Okada collaborates with scholars based in Japan, United States and Australia. Hidetaka Okada's co-authors include Tomohiro Kurosaki, Tomoko Tsuzuki, Hiromi Murata, Hideharu Kanzaki, Katsuhiko Yasuda, Jeffrey V. Ravetch, Silvia Bolland, Masao Ono, Shigeru Yanagi and Akemi Nishigaki and has published in prestigious journals such as Cell, Journal of Biological Chemistry and The Journal of Experimental Medicine.

In The Last Decade

Hidetaka Okada

109 papers receiving 2.9k 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.

Full-length 16S rRNA gene amplicon analysis of human gut microbiota using MinION™ nanopore sequencing confers species-level resolution

2021 209 citations Hidetaka Okada et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Hidetaka Okada Japan	28	1.5k	991	845	578	333	123	3.0k
W. Colin Duncan United Kingdom	37	972 0.6×	1.0k 1.0×	1.4k 1.7×	632 1.1×	1.5k 4.5×	132	4.0k
Siamak Tabibzadeh United States	37	2.4k 1.5×	903 0.9×	1.5k 1.8×	804 1.4×	591 1.8×	82	3.9k
Ramazan Demir Türkiye	32	915 0.6×	948 1.0×	558 0.7×	1.3k 2.2×	436 1.3×	97	3.0k
Thaddeus G. Golos United States	32	1.4k 0.9×	2.3k 2.4×	428 0.5×	1.1k 1.8×	816 2.5×	138	4.9k
Anna T. Grazul‐Bilska United States	37	636 0.4×	1.3k 1.4×	630 0.7×	1.1k 1.8×	1.1k 3.4×	126	4.6k
Yuanqing Yao China	31	949 0.6×	1.1k 1.1×	673 0.8×	833 1.4×	1.0k 3.1×	160	3.3k
James A. MacLean United States	36	1.5k 0.9×	1.3k 1.4×	658 0.8×	226 0.4×	458 1.4×	76	4.5k
Sanda Maria Creţoiu Romania	30	412 0.3×	1.9k 1.9×	416 0.5×	257 0.4×	212 0.6×	71	3.4k
Lutz Konrad Germany	28	470 0.3×	849 0.9×	1.0k 1.2×	332 0.6×	328 1.0×	97	2.4k
Jim Petrik Canada	38	404 0.3×	1.5k 1.5×	409 0.5×	480 0.8×	506 1.5×	118	4.1k

Countries citing papers authored by Hidetaka Okada

Since Specialization

Citations

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

Fields of papers citing papers by Hidetaka Okada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hidetaka Okada

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

Iwase, Akira, Hiroshi Ishikawa, Hidetaka Okada, et al.. (2025). Reproductive Endocrinology Committee, Japan Society of Obstetrics and Gynecology: Annual report 2023–2024. Journal of obstetrics and gynaecology research. 51(8). e70008–e70008.

Nishigaki, Akemi, et al.. (2025). Effects of cigarette smoke extract on angiogenesis and aromatase activity in KGN cells. Scientific Reports. 15(1). 13967–13967.

Yoshida, Aya, et al.. (2024). Differences between Japanese new criteria and pregnancy-specific modified ISTH DIC scores for obstetrical DIC diagnosis. International Journal of Hematology. 119(3). 265–274. 2 indexed citations

Kita, Masato, et al.. (2023). Successful pneumovaginoscopic surgery for recurrent abscess of OHVIRA syndrome, preventing further recurrence and subsequent pregnancy. Asian Journal of Endoscopic Surgery. 17(1). e13270–e13270. 1 indexed citations

Sakurai, Takashi & Hidetaka Okada. (2021). EXAMINATION OF AN APPLICABLE RANGE FOR A MARKERLESS MOTION CAPTURE SYSTEM IN GAIT ANALYSIS. ISBS Proceedings Archive. 39(1). 141. 1 indexed citations

Murata, Hiromi, Susumu Tanaka, Naoko Kida, et al.. (2020). The transcription factor HAND2 up-regulates transcription of the IL15 gene in human endometrial stromal cells. Journal of Biological Chemistry. 295(28). 9596–9605. 38 indexed citations

Murata, Hiromi, et al.. (2019). Progestin-induced heart and neural crest derivatives-expressed transcript 2 inhibits angiopoietin 2 via fibroblast growth factor 9 in human endometrial stromal cells. Reproductive Biology. 19(1). 14–21. 13 indexed citations

Okada, Hidetaka & Akemi Nishigaki. (2019). Concentrations of stromal cell-derived factor-1 in human follicular fluids are associated with clinical in vitro fertilization outcomes. Fertility and Sterility. 112(3). e180–e181. 1 indexed citations

Okada, Hidetaka, et al.. (2019). The influence of hypoxia on angiogenesis and metabolism in human endometrial stromal cells. Fertility and Sterility. 112(3). e132–e133. 1 indexed citations

10.

Yasuda, Katsuhiko, et al.. (2018). The steroid hormone dydrogesterone inhibits myometrial contraction independently of the progesterone/progesterone receptor pathway. Life Sciences. 207. 508–515. 11 indexed citations

11.

Kita, Masato, et al.. (2017). TME-like surgery by vaginal endoscopy in retrograde radical hysterectomy. 69(2). 596.

12.

Okada, Hidetaka, et al.. (2014). Requirement of heart and neural crest derivatives–expressed transcript 2 during decidualization of human endometrial stromal cells in vitro. Fertility and Sterility. 101(6). 1781–1790.e5. 31 indexed citations

13.

Tsuzuki, Tomoko, et al.. (2013). Divergent regulation of angiopoietin-1, angiopoietin-2, and vascular endothelial growth factor by hypoxia and female sex steroids in human endometrial stromal cells. European Journal of Obstetrics & Gynecology and Reproductive Biology. 168(1). 95–101. 34 indexed citations

14.

Okada, Hidetaka, et al.. (2012). Progestin-induced heart and neural crest derivatives expressed transcript 2 is associated with fibulin-1 expression in human endometrial stromal cells. Fertility and Sterility. 99(1). 248–255.e2. 24 indexed citations

15.

Abe, Takao, et al.. (2010). DETERMINATION OF BODY SEGMENT INERTIA PARAMETERS USING 3D HUMAN BODY SCANNER AND 3D CAD SOFTWARE. ISBS - Conference Proceedings Archive. 1(1). 2 indexed citations

16.

Maenosono, Shinya, et al.. (2009). Comparisons of sperm quality, morphometry and function among human sperm populations recovered via SpermPrep™ II filtration, swim-up and Percoll density gradient methods. Andrologia. 29(6). 303–310. 8 indexed citations

17.

Okada, Hidetaka, et al.. (2008). VARIANCE OF LOWER LIMB KINEMATICS DURING RUNNING ON TREADMILL. ISBS - Conference Proceedings Archive. 1(1).

18.

Okada, Hidetaka. (1999). Report on the Workshop for the Role and Training of Research Librarians in Evidence-Based Medicine in Japan. Igaku Toshokan. 46(3). 269–271. 1 indexed citations

19.

Li, Lin, Katsuhiko Yasuda, Takashi Matsubara, et al.. (1999). Estrogen effects on platelet-activating factor and platelet-activating factor acetylhydrolase activity in rat uterus during the late stages of pregnancy. Prostaglandins & Other Lipid Mediators. 57(4). 219–230. 10 indexed citations

20.

Okada, Hidetaka, et al.. (1997). Distribution of Epithelial-Specific Antigen in Uterine Cervix with Endocervical Glandular Dysplasia. Gynecologic Oncology. 66(3). 393–398. 4 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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