Tetsuji Okazaki

898 total citations
20 papers, 745 citations indexed

About

Tetsuji Okazaki is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Immunology. According to data from OpenAlex, Tetsuji Okazaki has authored 20 papers receiving a total of 745 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Public Health, Environmental and Occupational Health, 14 papers in Reproductive Medicine and 7 papers in Immunology. Recurrent topics in Tetsuji Okazaki's work include Reproductive Biology and Fertility (14 papers), Sperm and Testicular Function (11 papers) and Reproductive System and Pregnancy (7 papers). Tetsuji Okazaki is often cited by papers focused on Reproductive Biology and Fertility (14 papers), Sperm and Testicular Function (11 papers) and Reproductive System and Pregnancy (7 papers). Tetsuji Okazaki collaborates with scholars based in Japan, United States and China. Tetsuji Okazaki's co-authors include Masayuki Shimada, Yasuhisa Yamashita, Noritaka Noma, JoAnne S. Richards, Hisanori Teshima, Masahide Nishibori, Takahide Mori, Teruo Maeda, Takato Terada and Shuji Yoshida and has published in prestigious journals such as Development, Free Radical Biology and Medicine and Molecular Endocrinology.

In The Last Decade

Tetsuji Okazaki

19 papers receiving 725 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Tetsuji Okazaki Japan	13	500	452	180	163	144	20	745
Ricardo Felmer Chile	18	518 1.0×	474 1.0×	129 0.7×	144 0.9×	212 1.5×	71	921
Ülle Jaakma Estonia	20	430 0.9×	421 0.9×	237 1.3×	206 1.3×	360 2.5×	50	942
Beatriz Fernández-Fuertes Spain	18	391 0.8×	391 0.9×	237 1.3×	216 1.3×	307 2.1×	44	825
Clara I. Marı́n-Briggiler Argentina	19	529 1.1×	680 1.5×	104 0.6×	53 0.3×	202 1.4×	36	965
Jessica P. Rickard Australia	19	465 0.9×	703 1.6×	75 0.4×	301 1.8×	131 0.9×	46	939
María Jesús Sánchez‐Calabuig Spain	19	530 1.1×	411 0.9×	104 0.6×	162 1.0×	229 1.6×	56	833
Carl Lessard Canada	14	313 0.6×	409 0.9×	57 0.3×	78 0.5×	235 1.6×	25	678
Augustine T. Peter United States	11	286 0.6×	261 0.6×	52 0.3×	102 0.6×	148 1.0×	24	570
Mahnaz Ekhlasi‐Hundrieser Germany	19	600 1.2×	783 1.7×	124 0.7×	185 1.1×	245 1.7×	32	1.1k
Shavahn C. Loux United States	17	200 0.4×	243 0.5×	252 1.4×	403 2.5×	146 1.0×	61	793

Countries citing papers authored by Tetsuji Okazaki

Since Specialization

Citations

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

Fields of papers citing papers by Tetsuji Okazaki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tetsuji Okazaki

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

Zhu, Zhendong, Takashi Umehara, Takahiro Yamanaka, et al.. (2024). Synthesis of functional enzymes involved in glutathione production during linear motility in boar sperm. Free Radical Biology and Medicine. 228. 126–136. 5 indexed citations

Zhu, Zhendong, Takashi Umehara, Tetsuji Okazaki, et al.. (2019). Gene Expression and Protein Synthesis in Mitochondria Enhance the Duration of High-Speed Linear Motility in Boar Sperm. Frontiers in Physiology. 10. 252–252. 66 indexed citations

Shimada, Masayuki, Yasuhisa Yamashita, & Tetsuji Okazaki. (2016). Development of Artificial Insemination Technique in Pig Production Based on the Evidence of Physiology and Molecular Biology in Reproductive Organs. 6(2). 59–83. 1 indexed citations

Okazaki, Tetsuji, et al.. (2013). Addition of oxytocin to semen extender improves both sperm transport to the oviduct and conception rates in pigs following AI. Animal Science Journal. 85(1). 8–14. 14 indexed citations

Teshima, Hisanori, et al.. (2012). The Effect of Glycerol on Cryopreservation of Berkshire or Agu Spermatozoa Using Hyperosmotic Freezing Extender. Nihon Yoton Gakkaishi. 49(3). 128–132.

Okazaki, Tetsuji & Masayuki Shimada. (2012). New strategies of boar sperm cryopreservation: Development of novel freezing and thawing methods with a focus on the roles of seminal plasma. Animal Science Journal. 83(9). 623–629. 25 indexed citations

Okazaki, Tetsuji, et al.. (2012). Artificial Insemination With Seminal Plasma Improves the Reproductive Performance of Frozen‐Thawed Boar Epididymal Spermatozoa. Journal of Andrology. 33(5). 990–998. 29 indexed citations

Shimada, Masayuki, Toshihiro Mihara, Ikko Kawashima, & Tetsuji Okazaki. (2012). Anti‐Bacterial Factors Secreted From Cumulus Cells of Ovulated COCs Enhance Sperm Capacitation During In Vitro Fertilization. American Journal of Reproductive Immunology. 69(2). 168–179. 8 indexed citations

Yamashita, Yasuhisa, Ikko Kawashima, Tetsuji Okazaki, et al.. (2011). Positive Feedback Loop Between Prostaglandin E2 and EGF-Like Factors Is Essential for Sustainable Activation of MAPK3/1 in Cumulus Cells During In Vitro Maturation of Porcine Cumulus Oocyte Complexes1. Biology of Reproduction. 85(5). 1073–1082. 32 indexed citations

10.

Okazaki, Tetsuji, Shuji Yoshida, Hisanori Teshima, & Masayuki Shimada. (2011). The addition of calcium ion chelator, EGTA to thawing solution improves fertilizing ability in frozen–thawed boar sperm. Animal Science Journal. 82(3). 412–419. 27 indexed citations

11.

Okazaki, Tetsuji, et al.. (2011). Artificial Insemination Trial of Frozen-Thawed Boar Spermatozoa with Thawing Solution Containing Seminal Plasma. Nihon Yoton Gakkaishi. 48(4). 164–168. 2 indexed citations

12.

Mihara, Toshihiro, et al.. (2010). Murine Sperm Expresses Toll-Like Receptor (TLR) Family that Responds to the Pathogens Released from Virus, and Decreases Fertilization Ability by the Stimuli. Journal of Mammalian Ova Research. 27(3). 136–143. 9 indexed citations

13.

Okazaki, Tetsuji, Toshihiro Mihara, Youko Fujita, et al.. (2010). Polymyxin B neutralizes bacteria-released endotoxin and improves the quality of boar sperm during liquid storage and cryopreservation. Theriogenology. 74(9). 1691–1700. 57 indexed citations

14.

Okazaki, Tetsuji, et al.. (2009). Improved conception rates in sows inseminated with cryopreserved boar spermatozoa prepared with a more optimal combination of osmolality and glycerol in the freezing extender. Animal Science Journal. 80(2). 121–129. 29 indexed citations

15.

Okazaki, Tetsuji, et al.. (2008). Sequential exposure of porcine cumulus cells to FSH and/or LH is critical for appropriate expression of steroidogenic and ovulation-related genes that impact oocyte maturation in vivo and in vitro. Reproduction. 136(1). 9–21. 91 indexed citations

16.

Shimada, Masayuki, et al.. (2008). Hyaluronan fragments generated by sperm-secreted hyaluronidase stimulate cytokine/chemokine production via the TLR2 and TLR4 pathway in cumulus cells of ovulated COCs, which may enhance fertilization. Development. 135(11). 2001–2011. 156 indexed citations

17.

Shimada, Masayuki, et al.. (2007). ACTIVATION OF TOLL-LIKE RECEPTORS 2 AND 4 ON CUMULUS CELLS OF OVULATED CUMULUS OOCYTE COMPLEXES STIMULATES PRODUCTION OF CYTOKINES/CHEMOKINES THAT CAN INDUCE SPERM CAPACITATION LEADING TO SUCCESSFUL FERTILIZATION. Biology of Reproduction. 77(Suppl_1). 140–141. 1 indexed citations

18.

Shimada, Masayuki, Tetsuji Okazaki, Yasuhisa Yamashita, et al.. (2007). Synaptosomal-Associated Protein 25 Gene Expression Is Hormonally Regulated during Ovulation and Is Involved in Cytokine/Chemokine Exocytosis from Granulosa Cells. Molecular Endocrinology. 21(10). 2487–2502. 61 indexed citations

19.

Okazaki, Tetsuji, Masahide Nishibori, Yasuhisa Yamashita, & Masayuki Shimada. (2003). LH reduces proliferative activity of cumulus cells and accelerates GVBD of porcine oocytes. Molecular and Cellular Endocrinology. 209(1-2). 43–50. 31 indexed citations

20.

Yamashita, Yasuhisa, Masayuki Shimada, Tetsuji Okazaki, Teruo Maeda, & Takato Terada. (2003). Production of Progesterone from De Novo-Synthesized Cholesterol in Cumulus Cells and Its Physiological Role During Meiotic Resumption of Porcine Oocytes1. Biology of Reproduction. 68(4). 1193–1198. 101 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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