Koushi Yamaguchi

1.7k total citations
70 papers, 1.3k citations indexed

About

Koushi Yamaguchi is a scholar working on Infectious Diseases, Epidemiology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Koushi Yamaguchi has authored 70 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Infectious Diseases, 19 papers in Epidemiology and 19 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Koushi Yamaguchi's work include Reproductive System and Pregnancy (14 papers), Pregnancy and Medication Impact (14 papers) and HIV Research and Treatment (12 papers). Koushi Yamaguchi is often cited by papers focused on Reproductive System and Pregnancy (14 papers), Pregnancy and Medication Impact (14 papers) and HIV Research and Treatment (12 papers). Koushi Yamaguchi collaborates with scholars based in Japan, United States and United Kingdom. Koushi Yamaguchi's co-authors include Michi Hisano, Tadakatsu Shimamura, Rikikazu Sugiyama, Koji Nakagawa, Mitsuo Honda, Yukihiko Hara, Hajime Ikigai, Atsuko Murashima, Keiji Kuroda and Haruhiko Sago and has published in prestigious journals such as PLoS ONE, Clinical Infectious Diseases and Analytical Biochemistry.

In The Last Decade

Koushi Yamaguchi

65 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koushi Yamaguchi Japan	19	366	357	251	228	222	70	1.3k
Karen Beckerman United States	15	732 2.0×	422 1.2×	244 1.0×	312 1.4×	254 1.1×	28	1.8k
Susan A. Ballagh United States	21	75 0.2×	219 0.6×	103 0.4×	196 0.9×	346 1.6×	41	1.0k
Pekka Lähteenmäki Finland	28	277 0.8×	320 0.9×	113 0.5×	193 0.8×	1.1k 5.0×	72	2.4k
Jing Xie China	23	378 1.0×	1.1k 3.2×	383 1.5×	380 1.7×	76 0.3×	80	2.1k
Lena Serghides Canada	30	912 2.5×	394 1.1×	219 0.9×	223 1.0×	1.2k 5.5×	89	2.5k
Hamed Haddad Kashani Iran	25	101 0.3×	226 0.6×	57 0.2×	82 0.4×	148 0.7×	70	1.6k
Anna Ruggieri Italy	23	222 0.6×	412 1.2×	38 0.2×	771 3.4×	110 0.5×	50	2.0k
Sulaimon Akanmu Nigeria	22	60 0.2×	825 2.3×	452 1.8×	491 2.2×	134 0.6×	139	1.7k
Prasanna Jagannathan United States	28	759 2.1×	616 1.7×	98 0.4×	196 0.9×	1.4k 6.5×	100	2.7k

Countries citing papers authored by Koushi Yamaguchi

Since Specialization

Citations

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

Fields of papers citing papers by Koushi Yamaguchi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koushi Yamaguchi

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

Kuroda, Keiji, et al.. (2025). Tacrolimus treatment in reproductive failures. Journal of Reproductive Immunology. 173. 104824–104824.

Narita, Zui, Ryo Okubo, Yohei Sasaki, et al.. (2023). Association of COVID-19-related discrimination with subsequent depression and suicidal ideation in healthcare workers. Journal of Psychiatric Research. 159. 153–158. 13 indexed citations

Hisano, Michi, Koji Nakagawa, Tomo Suzuki, Rikikazu Sugiyama, & Koushi Yamaguchi. (2023). Immunosuppressive therapy with tacrolimus is a potential drug candidate for the prevention of unexplained or preeclamptic stillbirths with Th1-dominant immune states: a case series of five patients. The Journal of Maternal-Fetal & Neonatal Medicine. 36(2). 2258254–2258254.

Shoji, Kensuke, Shinya Tsuzuki, Takayuki Akiyama, et al.. (2022). Comparison of clinical characteristics of COVID-19 in pregnant women between the Delta and Omicron variants of concern predominant periods. Journal of Infection and Chemotherapy. 29(1). 33–38. 7 indexed citations

Nakayama, Tetsuo, Kenji Okada, Kohei Ogawa, et al.. (2022). Pertussis, diphtheria, and tetanus antibodies seroprevalence in pregnant women and neonates, as a preliminary data for introduction of preconception or prenatal DTaP vaccination among Japanese society. Vaccine. 40(49). 7122–7129. 3 indexed citations

Shoji, Kensuke, Shinya Tsuzuki, Takayuki Akiyama, et al.. (2022). Clinical Characteristics and Outcomes of Coronavirus Disease 2019 (COVID-19) in Pregnant Women: A Propensity Score-Matched Analysis of Data From the COVID-19 Registry Japan.. PubMed. 75(1). e397–e402. 4 indexed citations

Kuroda, Keiji, Koji Nakagawa, Takashi Horikawa, et al.. (2021). Increasing number of implantation failures and pregnancy losses associated with elevated Th1/Th2 cell ratio. American Journal of Reproductive Immunology. 86(3). e13429–e13429. 41 indexed citations

Geard, Nicholas, James Fielding, Sabine Braat, et al.. (2019). Optimal timing of influenza vaccine during pregnancy: A systematic review and meta‐analysis. Influenza and Other Respiratory Viruses. 13(5). 438–452. 50 indexed citations

Nakagawa, Koji, Joanne Kwak‐Kim, Michi Hisano, et al.. (2019). Obstetric and perinatal outcome of the women with repeated implantation failures or recurrent pregnancy losses who received pre‐ and post‐conception tacrolimus treatment. American Journal of Reproductive Immunology. 82(2). e13142–e13142. 22 indexed citations

10.

Nakagawa, Koji, Michi Hisano, Rikikazu Sugiyama, & Koushi Yamaguchi. (2015). Measurement of oxidative stress in the follicular fluid of infertility patients with an endometrioma. Archives of Gynecology and Obstetrics. 293(1). 197–202. 22 indexed citations

11.

Hisano, Michi, et al.. (2015). Influenza vaccination during pregnancy and its usefulness to mothers and their young infants. Journal of Infection and Chemotherapy. 21(4). 238–246. 25 indexed citations

12.

Nakajima, Ken, Atsuko Murashima, Koushi Yamaguchi, et al.. (2009). Intake rate of folic acid among pregnant women consulting the Japan Drug Information Institute in Pregnancy. 11(2). 107–114. 1 indexed citations

13.

Hisano, Michi, et al.. (2009). Vitamin B6 deficiency and anemia in pregnancy. European Journal of Clinical Nutrition. 64(2). 221–223. 39 indexed citations

14.

Yamaguchi, Koushi, Michi Hisano, Mariko Sakata, et al.. (2006). Periodic plateletpheresis during pregnancy in a high-risk patient with essential thrombocythemia. Journal of Clinical Apheresis. 21(4). 256–259. 13 indexed citations

15.

Yamaguchi, Koushi, Akiko Yamamoto, Michi Hisano, Michiya Natori, & Atsuko Murashima. (2005). Herpes Simplex Virus 2–Associated Hemophagocytic Lymphohistiocytosis in a Pregnant Patient. Obstetrics and Gynecology. 105(5). 1241–1244. 36 indexed citations

16.

Yamaguchi, Koushi & Randal A. Byrn. (1995). Clinical isolates of HIV-1 contain few pre-existing proteinase inhibitor resistance-conferring mutations. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1253(2). 136–140. 15 indexed citations

17.

Yamaguchi, Koushi, Jerome E. Groopman, & Randal A. Byrn. (1994). The regulation of HIV by retinoic acid correlates with cellular expression of the retinoic acid receptors. AIDS. 8(12). 1675–1682. 32 indexed citations

18.

Yamaguchi, Koushi, Zhengwen Zhang, & Randal A. Byrn. (1994). A Modified Nonradioactive Method for Northern Blot Analysis. Analytical Biochemistry. 218(2). 343–346. 5 indexed citations

19.

Yamaguchi, Koushi, et al.. (1994). Fluorescent primers allow direct confirmation of restriction enzyme cleavage of PCR products.. PubMed. 17(4). 649–50, 652. 2 indexed citations

20.

Yamaguchi, Koushi, Hiroshi Ushijima, H Tsuchie, et al.. (1991). Novel PCR Methods for Detection of HIV Proviruses Using Degoxigenin Labelled Probes. Kansenshogaku zasshi. 65(3). 267–272. 2 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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