Naoyuki Takuma

809 total citations
15 papers, 635 citations indexed

About

Naoyuki Takuma is a scholar working on Reproductive Medicine, Molecular Biology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Naoyuki Takuma has authored 15 papers receiving a total of 635 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Reproductive Medicine, 5 papers in Molecular Biology and 5 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Naoyuki Takuma's work include Reproductive Biology and Fertility (5 papers), Ovarian function and disorders (4 papers) and Sperm and Testicular Function (4 papers). Naoyuki Takuma is often cited by papers focused on Reproductive Biology and Fertility (5 papers), Ovarian function and disorders (4 papers) and Sperm and Testicular Function (4 papers). Naoyuki Takuma collaborates with scholars based in Japan, China and United States. Naoyuki Takuma's co-authors include Kazuo Sengoku, Kenichi Tamate, Kamal Sharma, Hui Z. Sheng, Brigid L.M. Hogan, Samuel L. Pfaff, Kathleen Mahon, Heiner Westphal, Yasuhide Furuta and Jerrold M. Ward and has published in prestigious journals such as Development, British Journal of Cancer and Human Reproduction.

In The Last Decade

Naoyuki Takuma

15 papers receiving 614 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Naoyuki Takuma Japan	12	330	169	167	157	137	15	635
Marino Bortolussi Italy	18	607 1.8×	324 1.9×	100 0.6×	101 0.6×	144 1.1×	32	1.1k
Klaus Seidl Germany	17	440 1.3×	135 0.8×	74 0.4×	204 1.3×	69 0.5×	26	804
Maria Lucia Scaldaferri Italy	10	298 0.9×	90 0.5×	174 1.0×	143 0.9×	84 0.6×	12	545
T. L. Greco United States	10	359 1.1×	310 1.8×	100 0.6×	148 0.9×	116 0.8×	13	684
J. Barra France	7	635 1.9×	281 1.7×	88 0.5×	106 0.7×	253 1.8×	10	1.1k
Justine Bouilly France	12	181 0.5×	205 1.2×	212 1.3×	212 1.4×	144 1.1×	15	594
Sunita Verma‐Kurvari United States	6	310 0.9×	224 1.3×	56 0.3×	104 0.7×	47 0.3×	10	458
F. R. Boockfor United States	15	321 1.0×	230 1.4×	106 0.6×	302 1.9×	617 4.5×	26	1.1k
Marie-Laure Kottler France	15	456 1.4×	406 2.4×	43 0.3×	361 2.3×	253 1.8×	23	981
Verónica Tapia Chile	11	212 0.6×	94 0.6×	162 1.0×	180 1.1×	47 0.3×	16	524

Countries citing papers authored by Naoyuki Takuma

Since Specialization

Citations

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

Fields of papers citing papers by Naoyuki Takuma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Naoyuki Takuma

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

All Works

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15 of 15 papers shown

Miyamoto, Toshinobu, Hisashi Satoh, Naoyuki Takuma, et al.. (2005). Three-dimensional magnetic resonance imaging after ultrasonography for assessment of fetal gastroschisis. Magnetic Resonance Imaging. 24(2). 201–203. 8 indexed citations

Sengoku, Kazuo, Naoyuki Takuma, Katsutoshi Goishi, et al.. (2004). Differential expression of heparin-binding epidermal growth factor-like growth factor in the rat ovary. Molecular and Cellular Endocrinology. 214(1-2). 1–8. 17 indexed citations

Kato, Yasuhito, et al.. (2004). Treatment of Climacteric Symptoms with Herbal Formulas of Traditional Chinese Medicine. Gynecologic and Obstetric Investigation. 57(3). 144–148. 20 indexed citations

Miyamoto, Toshinobu, Kazuo Sengoku, Hiroaki Hayashi, et al.. (2004). Short Communication: Isolation and Expression Analysis of the Testis-Specific Gene, Human OPPO1. Journal of Assisted Reproduction and Genetics. 21(4). 129–134. 3 indexed citations

Sengoku, Kazuo, et al.. (2004). Nuclear Dynamics of Parthenogenesis of Human Oocytes: Effect of Oocyte Aging in vitro. Gynecologic and Obstetric Investigation. 58(3). 155–159. 11 indexed citations

Miyamoto, Toshinobu, Kazuo Sengoku, Shiga Hasuike, et al.. (2003). Isolation and Expression Analysis of the Human Testis-Specific Gene, SPERGEN-1, a Spermatogenic Cell-Specific Gene-1. Journal of Assisted Reproduction and Genetics. 20(2). 101–104. 15 indexed citations

Miyamoto, Toshinobu, Kazuo Sengoku, Naoyuki Takuma, et al.. (2002). Isolation and Expression Analysis of the Testis-Specific Gene, STRA8, Stimulated by Retinoic Acid Gene 8. Journal of Assisted Reproduction and Genetics. 19(11). 531–535. 20 indexed citations

Takuma, Naoyuki, Kazuo Sengoku, Bochen Pan, et al.. (2002). Laparoscopic Treatment of Endometrioma-Associated Infertility and Pregnancy Outcome. Gynecologic and Obstetric Investigation. 54(Suppl. 1). 30–35. 11 indexed citations

Sengoku, Kazuo, et al.. (2001). Requirement of nitric oxide for murine oocyte maturation, embryo development, and trophoblast outgrowth in vitro. Molecular Reproduction and Development. 58(3). 262–268. 104 indexed citations

10.

Pabst, Oliver, Heike Herbrand, Naoyuki Takuma, & Hans-Henning Arnold. (2000). NKX2 gene expression in neuroectoderm but not in mesendodermally derived structures depends on sonic hedgehog in mouse embryos. Development Genes and Evolution. 210(1). 47–50. 84 indexed citations

11.

Miyamoto, Toshinobu, Hiroaki Hayashi, Kazuo Sengoku, et al.. (2000). Diffuse malignant mesothelioma of the uterus. Acta Obstetricia Et Gynecologica Scandinavica. 79(2). 154–155. 2 indexed citations

12.

Takuma, Naoyuki, Hui Z. Sheng, Yasuhide Furuta, et al.. (1998). Formation of Rathke’s pouch requires dual induction from the diencephalon. Development. 125(23). 4835–4840. 245 indexed citations

13.

Sengoku, Kazuo, et al.. (1997). The chromosomal normality of unfertilized oocytes from patients with polycystic ovarian syndrome. Human Reproduction. 12(3). 474–477. 64 indexed citations

14.

Sengoku, Kazuo, et al.. (1996). Regulators of sperm function. Molecular Human Reproduction. 2(6). 401–404. 11 indexed citations

15.

Yaginuma, Yuji, et al.. (1995). Analysis of the p53 gene in human choriocarcinoma cell lines. British Journal of Cancer. 71(1). 9–12. 20 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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