Koichi Nagai

580 total citations
32 papers, 449 citations indexed

About

Koichi Nagai is a scholar working on Molecular Biology, Surgery and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Koichi Nagai has authored 32 papers receiving a total of 449 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Molecular Biology, 6 papers in Surgery and 5 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Koichi Nagai's work include Thyroid Disorders and Treatments (4 papers), Platelet Disorders and Treatments (3 papers) and Uterine Myomas and Treatments (3 papers). Koichi Nagai is often cited by papers focused on Thyroid Disorders and Treatments (4 papers), Platelet Disorders and Treatments (3 papers) and Uterine Myomas and Treatments (3 papers). Koichi Nagai collaborates with scholars based in Japan and United States. Koichi Nagai's co-authors include Masahiro Asaka, Tatsuya Ohkawara, Hiroshi Takeda, Tomohisa Hattori, Takehiko Katsurada, Chiharu Sadakane, Kazuo Komiyama, Kiyoshi Miura, Hiroshi Takano and Shuichi Yamaguchi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Blood and Gastroenterology.

In The Last Decade

Koichi Nagai

30 papers receiving 432 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koichi Nagai Japan 10 111 92 86 75 57 32 449
Takehiko Katsurada Japan 13 112 1.0× 123 1.3× 209 2.4× 105 1.4× 75 1.3× 41 706
Zheng Lin China 11 83 0.7× 88 1.0× 52 0.6× 49 0.7× 26 0.5× 23 325
Munenori Nagao Japan 13 99 0.9× 57 0.6× 179 2.1× 34 0.5× 7 0.1× 51 434
Astrid Hubert Germany 12 136 1.2× 128 1.4× 117 1.4× 49 0.7× 8 0.1× 26 507
Spomenko Ilić Croatia 12 76 0.7× 107 1.2× 268 3.1× 15 0.2× 16 0.3× 19 537
Isao Hirayama Japan 12 132 1.2× 108 1.2× 377 4.4× 26 0.3× 14 0.2× 21 618
Alenka Boban Blagaić Croatia 18 79 0.7× 134 1.5× 349 4.1× 25 0.3× 21 0.4× 54 695
Jones Rs United States 14 62 0.6× 111 1.2× 204 2.4× 15 0.2× 19 0.3× 36 524
Veronica De Luca Italy 11 68 0.6× 147 1.6× 89 1.0× 90 1.2× 19 0.3× 21 461
Juraj Rievaj United Kingdom 12 162 1.5× 237 2.6× 223 2.6× 72 1.0× 10 0.2× 15 670

Countries citing papers authored by Koichi Nagai

Since Specialization
Citations

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

Fields of papers citing papers by Koichi Nagai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Nagai

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Nagai. A scholar is included among the top collaborators of Koichi Nagai 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 Koichi Nagai. Koichi Nagai 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
1.
Nagai, Koichi, et al.. (2024). Chronic Isolated Fallopian Tube Torsion in a Sexually Inactive Adolescent Female Diagnosed Peroperatively. SHILAP Revista de lepidopterología. 2024(1). 2581337–2581337. 1 indexed citations
2.
Suzuki, Yukio, et al.. (2022). Strangulated internal hernia caused by an iatrogenic peritoneal band after total laparoscopic hysterectomy—A caveat to consider retroperitoneum closure. SHILAP Revista de lepidopterología. 10(11). e6550–e6550. 1 indexed citations
3.
Nagai, Koichi, et al.. (2022). MED12 mutations in uterine leiomyomas: prediction of volume reduction by gonadotropin-releasing hormone agonists. American Journal of Obstetrics and Gynecology. 228(2). 207.e1–207.e9. 6 indexed citations
4.
Nagai, Koichi, et al.. (2016). Hyperthyroidism due to struma ovarii: Diagnostic pitfalls and preventing thyroid storm. Gynecology and Minimally Invasive Therapy. 6(1). 28–30. 3 indexed citations
5.
Nagai, Koichi, et al.. (2016). Laparoscopic surgery for a highly obese woman with endometrial cancer: a case report. JAPANESE JOURNAL OF GYNECOLOGIC AND OBSTETRIC ENDOSCOPY. 31(2). 444–449.
6.
7.
Nagai, Koichi, et al.. (2013). Epiregulin is critical for the acinar cell regeneration of the submandibular gland in a mouse duct ligation model. Journal of Oral Pathology and Medicine. 43(5). 378–387. 19 indexed citations
8.
Murakami, Takashi, Keishoku Sakuraba, & Koichi Nagai. (2011). Comparison of Changes in the Transversus Abdominis and Neighboring Fascia in Subjects With and Without a History of Low Back Pain Using Ultrasound Imaging. Journal of Physical Therapy Science. 23(2). 317–322. 5 indexed citations
9.
Matsumoto, Naoyuki, Yasuhiro Okazaki, Koichi Nagai, et al.. (2010). Prognostic value of LYVE-1-positive lymphatic vessel in tongue squamous cell carcinomas.. PubMed. 30(6). 1897–903. 8 indexed citations
10.
Okazaki, Yasuhiro, et al.. (2009). Detection of fascin and CCR‐7 positive mature dendritic cells in oral lichen planus. Journal of Oral Pathology and Medicine. 38(4). 334–342. 10 indexed citations
11.
Takeda, Hiroshi, Chiharu Sadakane, Tomohisa Hattori, et al.. (2008). Rikkunshito, an Herbal Medicine, Suppresses Cisplatin-Induced Anorexia in Rats Via 5-HT2 Receptor Antagonism. Gastroenterology. 134(7). 2004–2013. 243 indexed citations
12.
Ohkawara, Tatsuya, Jun Nishihira, Yoh Ishiguro, et al.. (2006). Resistance to experimental colitis depends on cytoprotective heat shock proteins in macrophage migration inhibitory factor null mice. Immunology Letters. 107(2). 148–154. 23 indexed citations
13.
14.
Nakayama, Shingo, et al.. (1992). [Clinical evaluation of cepharanthin for chronic idiopathic thrombocytopenic purpura].. PubMed. 33(3). 408–9. 11 indexed citations
15.
Kojima, Naoto, Shigenori NAKAMURA, Koichi Nagai, et al.. (1992). Serum concentrations of osteocalcin in patients with hyperthyroidism, hypothyroidism and subacute thyroiditis. Journal of Endocrinological Investigation. 15(7). 491–496. 17 indexed citations
16.
Nagai, Koichi, et al.. (1992). A case of rheumatoid arthritis associated with silent thyroiditis. Journal of Endocrinological Investigation. 15(5). 377–380. 2 indexed citations
17.
Nagai, Koichi, et al.. (1991). Anti-bovine thyrotropin autoantibodies in patients with Hashimoto’s thyroiditis, subacute thyroiditis, and systemic lupus erythematosus. Journal of Endocrinological Investigation. 14(2). 123–130. 10 indexed citations
18.
Nagai, Koichi, Osamu Tarutani, Yoichi Kohno, et al.. (1990). Two cases of Graves’ disease with antithyroid hormone antibodies: Implication on the role of thyroglobulin as an antigen. Journal of Endocrinological Investigation. 13(10). 825–832. 3 indexed citations
19.
Yabe, Hiromasa, et al.. (1988). Successful treatment of a patient with acute myeloid leukemia with 1 alpha(OH)D3.. PubMed. 51(6). 1026–30. 5 indexed citations
20.
Sakata, Shigeki, et al.. (1987). A case of diabetes mellitus associated with anti-insulin autoantibodies without previous insulin injection. Journal of Endocrinological Investigation. 10(4). 407–411. 6 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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