Masashige Kuwayama

6.4k total citations · 2 hit papers
75 papers, 4.9k citations indexed

About

Masashige Kuwayama is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Molecular Biology. According to data from OpenAlex, Masashige Kuwayama has authored 75 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Public Health, Environmental and Occupational Health, 50 papers in Reproductive Medicine and 21 papers in Molecular Biology. Recurrent topics in Masashige Kuwayama's work include Reproductive Biology and Fertility (68 papers), Sperm and Testicular Function (39 papers) and Reproductive Health and Technologies (18 papers). Masashige Kuwayama is often cited by papers focused on Reproductive Biology and Fertility (68 papers), Sperm and Testicular Function (39 papers) and Reproductive Health and Technologies (18 papers). Masashige Kuwayama collaborates with scholars based in Japan, United States and Denmark. Masashige Kuwayama's co-authors include Gábor Vajta, Osamu Kato, Stanley P. Leibo, Seizo Hamano, Shoko Ieda, Sherman J. Silber, Noriko Kagawa, Ed Stehlik, Joni Stehlik and Kayo Katayama and has published in prestigious journals such as Fertility and Sterility, Biology of Reproduction and Biochimica et Biophysica Acta (BBA) - General Subjects.

In The Last Decade

Masashige Kuwayama

72 papers receiving 4.6k 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.

Highly efficient vitrification method for cryopreservation of human oocytes

2005 930 citations Masashige Kuwayama, Gábor Vajta et al. Reproductive BioMedicine Online profile →
Highly efficient vitrification for cryopreservation of human oocytes and embryos: The Cryotop method

2006 646 citations Masashige Kuwayama Theriogenology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Masashige Kuwayama Japan	32	4.5k	3.6k	1.5k	833	468	75	4.9k
S. Ledda Italy	31	2.1k 0.5×	1.4k 0.4×	934 0.6×	372 0.4×	522 1.1×	136	2.8k
J. Shaw Australia	24	2.0k 0.4×	1.5k 0.4×	704 0.5×	356 0.4×	323 0.7×	48	2.3k
E.S. Critser United States	25	2.5k 0.6×	1.9k 0.5×	829 0.6×	192 0.2×	713 1.5×	56	3.2k
Magosaburo Kasai Japan	31	2.4k 0.5×	1.9k 0.5×	1.1k 0.8×	226 0.3×	307 0.7×	79	3.0k
Vladimir Isachenko Germany	35	3.1k 0.7×	2.9k 0.8×	829 0.6×	231 0.3×	356 0.8×	137	3.7k
Xiangzhong Yang United States	34	2.8k 0.6×	1.2k 0.3×	2.1k 1.5×	326 0.4×	1.3k 2.8×	62	3.8k
W.H. Eyestone United States	22	2.4k 0.5×	1.5k 0.4×	1.0k 0.7×	221 0.3×	1.1k 2.3×	43	3.1k
Evgenia Isachenko Germany	34	2.8k 0.6×	2.7k 0.7×	762 0.5×	203 0.2×	302 0.6×	125	3.4k
Frank L. Barnes United States	25	2.2k 0.5×	1.0k 0.3×	1.2k 0.8×	905 1.1×	953 2.0×	61	2.9k
Salvatore Naitana Italy	30	1.8k 0.4×	1.4k 0.4×	562 0.4×	264 0.3×	500 1.1×	109	2.5k

Countries citing papers authored by Masashige Kuwayama

Since Specialization

Citations

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

Fields of papers citing papers by Masashige Kuwayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masashige Kuwayama

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

Moulavi, Fariba, et al.. (2019). Survival, re-expansion, and pregnancy outcome following vitrification of dromedary camel cloned blastocysts: A possible role of vitrification in improving clone pregnancy rate by weeding out poor competent embryos. Cryobiology. 90. 75–82. 7 indexed citations

Kuwayama, Masashige, et al.. (2017). Appendix A: Cryotech® Vitrification Thawing. Methods in molecular biology. 1568. 281–295. 16 indexed citations

Kuwayama, Masashige. (2017). The human oocyte: Vitrification. 322–329.

Hara, Hiromasa, Isao Yamane, Noriko Kagawa, et al.. (2013). Microtubule assembly andin vitrodevelopment of bovine oocytes with increased intracellular glutathione level prior to vitrification andin vitrofertilization. Zygote. 22(4). 476–482. 14 indexed citations

Pope, C. E., M. C. Gómez, Noriko Kagawa, et al.. (2011). In vivo survival of domestic cat oocytes after vitrification, intracytoplasmic sperm injection and embryo transfer. Theriogenology. 77(3). 531–538. 48 indexed citations

Hara, Hiromasa, In‐Sul Hwang, Noriko Kagawa, et al.. (2011). High incidence of multiple aster formation in vitrified-warmed bovine oocytes after in vitro fertilization. Theriogenology. 77(5). 908–915. 18 indexed citations

Hochi, Shinichi, Hiromasa Hara, Masafumi Shimoda, et al.. (2010). Stimulatory effect of Rho-associated coiled-coil kinase (ROCK) inhibitor on revivability of in vitro-produced bovine blastocysts after vitrification. Theriogenology. 73(8). 1139–1145. 10 indexed citations

Shimoda, Masafumi, Hiromasa Hara, Hiroshi Morita, et al.. (2010). Vitrification of ICSI- and IVF-derived bovine blastocysts by minimum volume cooling procedure: effect of developmental stage and age. Theriogenology. 74(6). 1028–1035. 18 indexed citations

Kagawa, Noriko, Sherman J. Silber, & Masashige Kuwayama. (2009). Successful vitrification of bovine and human ovarian tissue. Reproductive BioMedicine Online. 18(4). 568–577. 199 indexed citations

10.

Takenaka, Atsushi, et al.. (2009). The relationship between the reproducibility of holmium laser enucleation of the prostate and prostate size over the learning curve. Prostate Cancer and Prostatic Diseases. 12(3). 281–284. 14 indexed citations

11.

Vajta, Gábor, et al.. (2008). The Well-of-the-Well system: an efficient approach to improve embryo development. Reproductive BioMedicine Online. 17(1). 73–81. 89 indexed citations

12.

Du, Yutao, Juan Li, P. M. Kragh, et al.. (2007). Piglets Born from Vitrified Cloned Blastocysts Produced with a Simplified Method of Delipation and Nuclear Transfer. Cloning and Stem Cells. 9(4). 469–476. 30 indexed citations

13.

Aoyama, Naoki, et al.. (2006). P-939. Fertility and Sterility. 86(3). S482–S483. 2 indexed citations

14.

Vajta, Gábor & Masashige Kuwayama. (2005). Improving cryopreservation systems. Theriogenology. 65(1). 236–244. 227 indexed citations

15.

Kuwayama, Masashige, Gábor Vajta, Osamu Kato, & Stanley P. Leibo. (2005). Highly efficient vitrification method for cryopreservation of human oocytes. Reproductive BioMedicine Online. 11(3). 300–308. 930 indexed citations breakdown →

16.

Yonezawa, Naoto, Seizo Hamano, Masashige Kuwayama, et al.. (2001). Essential role of the nonreducing terminal α‐mannosyl residues of the N‐linked carbohydrate chain of bovine zona pellucida glycoproteins in sperm‐egg binding. Molecular Reproduction and Development. 59(2). 221–226. 48 indexed citations

17.

Kuwayama, Masashige. (2000). All-round vitrification method for human oocytes and embryos. Journal of Assisted Reproduction and Genetics. 17. 477. 80 indexed citations

18.

Ikeda, Keiichi, Naoto Yonezawa, S. Noguchi, et al.. (1999). Disulfide formation in bovine zona pellucida glycoproteins during fertilization: evidence for the involvement of cystine cross-linkages in hardening of the zona pellucida. Reproduction. 117(2). 395–402. 41 indexed citations

19.

Iwasaki, S., Seizo Hamano, Masashige Kuwayama, et al.. (1992). Developmental changes in the incidence of chromosome anomalies of bovine embryos fertilized in vitro. Journal of Experimental Zoology. 261(1). 79–85. 58 indexed citations

20.

Hamano, Seizo, et al.. (1992). Full-term development of in vitro-matured, vitrified and fertilized bovine oocytes. Theriogenology. 38(6). 1085–1090. 70 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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