Hiroki Nishiyama

766 total citations · 1 hit paper
25 papers, 459 citations indexed

About

Hiroki Nishiyama is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Molecular Biology. According to data from OpenAlex, Hiroki Nishiyama has authored 25 papers receiving a total of 459 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Surgery, 10 papers in Cardiology and Cardiovascular Medicine and 7 papers in Molecular Biology. Recurrent topics in Hiroki Nishiyama's work include Coronary Interventions and Diagnostics (7 papers), Lipoproteins and Cardiovascular Health (5 papers) and Gut microbiota and health (5 papers). Hiroki Nishiyama is often cited by papers focused on Coronary Interventions and Diagnostics (7 papers), Lipoproteins and Cardiovascular Health (5 papers) and Gut microbiota and health (5 papers). Hiroki Nishiyama collaborates with scholars based in Japan, United States and France. Hiroki Nishiyama's co-authors include Hiroyuki Ogata, Susumu Goto, Genki Yoshikawa, Yugo Shimizu, Yosuke Nishimura, Pascal Hingamp, Tomoko Mihara, Toshiharu Sakurai, Masatoshi Kudo and Tomoyuki Nagai and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and Biochemical and Biophysical Research Communications.

In The Last Decade

Hiroki Nishiyama

22 papers receiving 456 citations

Hit Papers

Linking Virus Genomes with Host Taxonomy 2016 2026 2019 2022 2016 50 100 150 200 250
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.

  1. Linking Virus Genomes with Host Taxonomy
    2016 274 citations Hiroki Nishiyama, Susumu Goto et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hiroki Nishiyama Japan 8 205 180 85 78 68 25 459
Krzysztof Szufnarowski Poland 6 144 0.7× 528 2.9× 94 1.1× 26 0.3× 110 1.6× 9 586
Ki Wook Kim Australia 14 227 1.1× 74 0.4× 130 1.5× 124 1.6× 214 3.1× 22 716
Wei‐Chao Liao Taiwan 14 205 1.0× 94 0.5× 31 0.4× 29 0.4× 25 0.4× 36 523
Beatrı́z Gómez Mexico 12 165 0.8× 141 0.8× 30 0.4× 32 0.4× 107 1.6× 24 471
Patrick Seitz Switzerland 9 252 1.2× 157 0.9× 31 0.4× 19 0.2× 12 0.2× 14 605
Nicholas P. Semenkovich United States 7 256 1.2× 220 1.2× 54 0.6× 15 0.2× 123 1.8× 10 472
Melissa J. Wentz United States 12 121 0.6× 72 0.4× 42 0.5× 55 0.7× 242 3.6× 21 507
Janice Matthews-Greer United States 11 133 0.6× 73 0.4× 25 0.3× 13 0.2× 48 0.7× 14 457
Ramneek Verma India 11 280 1.4× 22 0.1× 45 0.5× 21 0.3× 28 0.4× 45 491
Alexander Sheh United States 16 293 1.4× 26 0.1× 24 0.3× 351 4.5× 175 2.6× 35 783

Countries citing papers authored by Hiroki Nishiyama

Since Specialization
Citations

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

Fields of papers citing papers by Hiroki Nishiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroki Nishiyama

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroki Nishiyama. A scholar is included among the top collaborators of Hiroki Nishiyama 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 Hiroki Nishiyama. Hiroki Nishiyama 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.
Dohi, Tomotaka, Miho Yokoyama, Hirohisa Endo, et al.. (2025). Wearable Devices in Remote Cardiac Rehabilitation With and Without Weekly Online Coaching for Patients With Coronary Artery Disease: Randomized Controlled Trial. JMIR mhealth and uhealth. 13. e63797–e63797. 2 indexed citations
2.
Nishiyama, Hiroki, et al.. (2024). Rectal toxicity of 3-dimensional conformal radiation therapy following hydrogel spacer (Space OAR) injection for men with prostate cancer. SAGE Open Medicine. 12. 3932137902–3932137902. 1 indexed citations
3.
Doi, Shinichiro, Tomotaka Dohi, Hirohisa Endo, et al.. (2023). Impact of Low-Dose Prasugrel on Platelet Reactivity in Chronic Phase of Post-Percutaneous Coronary Intervention (CHAPERON): a Prospective Cohort Study. Cardiovascular Drugs and Therapy. 38(5). 947–957. 1 indexed citations
4.
5.
Dohi, Tomotaka, Mitsuaki Matsumura, Hirohisa Endo, et al.. (2022). Relationship Between Optical Coherence Tomography–Derived In‐Stent Neoatherosclerosis and the Extent of Lipid‐Rich Neointima by Near‐Infrared Spectroscopy and Intravascular Ultrasound: A Multimodal Imaging Study. Journal of the American Heart Association. 11(23). e026569–e026569. 2 indexed citations
6.
Dohi, Tomotaka, Hirohisa Endo, Shinichiro Doi, et al.. (2022). Paradoxical Long-Term Impact Between Serum Apolipoprotein E and High-Density Lipoprotein Cholesterol in Patients Undergoing Percutaneous Coronary Intervention. Journal of Atherosclerosis and Thrombosis. 30(6). 611–623. 1 indexed citations
7.
Dohi, Tomotaka, Hirohisa Endo, Shinichiro Doi, et al.. (2021). Long-Term Impact of β-Blocker in Elderly Patients Without Myocardial Infarction After Percutaneous Coronary Intervention. ESC Heart Failure. 9(1). 545–554. 5 indexed citations
8.
Noguchi, Masahiko, Tomotaka Dohi, Shinya Okazaki, et al.. (2021). Comparison of 6‐month vascular healing response after bioresorbable polymer versus durable polymer drug‐eluting stent implantation in patients with acute coronary syndromes: A randomized serial optical coherence tomography study. Catheterization and Cardiovascular Interventions. 98(5). E677–E686. 5 indexed citations
9.
10.
Sakurai, Toshiharu, Marco A. De Velasco, Kazuko Sakai, et al.. (2021). Integrative analysis of gut microbiome and host transcriptomes reveals associations between treatment outcomes and immunotherapy‐induced colitis. Molecular Oncology. 16(7). 1493–1507. 21 indexed citations
11.
Dohi, Tomotaka, Yoshiteru Kato, Hirohisa Endo, et al.. (2021). Long-term impact of high-sensitivity C-reactive protein in patients with intermittent claudication due to peripheral artery disease following endovascular treatment. Heart and Vessels. 36(11). 1670–1678. 6 indexed citations
12.
Dohi, Tomotaka, Yoshiteru Kato, Hirohisa Endo, et al.. (2020). Long-term clinical outcomes and cause of death after endovascular treatment for femoropopliteal artery lesions. Journal of Cardiology. 77(4). 417–423. 5 indexed citations
13.
Nishiyama, Hiroki, Hisashi Endo, Romain Blanc‐Mathieu, & Hiroyuki Ogata. (2020). Ecological Structuring of Temperate Bacteriophages in the Inflammatory Bowel Disease-Affected Gut. Microorganisms. 8(11). 1663–1663. 19 indexed citations
14.
Kato, Yoshiteru, Hirohisa Endo, Hiroki Nishiyama, et al.. (2020). Predictors of discordance between fractional flow reserve and resting full-cycle ratio in patients with coronary artery disease: Evidence from clinical practice. Journal of Cardiology. 77(3). 313–319. 16 indexed citations
15.
Sakurai, Toshiharu, Hiroki Nishiyama, Tomoyuki Nagai, et al.. (2020). Deficiency of Gankyrin in the small intestine is associated with augmented colitis accompanied by altered bacterial composition of intestinal microbiota. BMC Gastroenterology. 20(1). 12–12. 3 indexed citations
16.
Sakurai, Toshiharu, Hiroki Nishiyama, Kazuko Sakai, et al.. (2020). Mucosal microbiota and gene expression are associated with long-term remission after discontinuation of adalimumab in ulcerative colitis. Scientific Reports. 10(1). 19186–19186. 14 indexed citations
17.
Iwata, Hiroshi, Sakiko Miyazaki, Kazuhisa Takamura, et al.. (2019). Successful Coronary Flow Restoration by Stent-Free Strategy Using the Pull-Back Method of Cutting Balloon in Spontaneous Coronary Artery Dissection. CJC Open. 1(4). 213–215. 6 indexed citations
18.
Nishiyama, Hiroki, Tomoyuki Nagai, Masatoshi Kudo, et al.. (2017). Supplementation of pancreatic digestive enzymes alters the composition of intestinal microbiota in mice. Biochemical and Biophysical Research Communications. 495(1). 273–279. 46 indexed citations
19.
Yumoto, Kazuhiko, Hajime Aoki, Akira Inoue, et al.. (2011). Calcified plaque rupture and very late stent thrombosis after bare-metal stent implantation. Cardiovascular Intervention and Therapeutics. 26(3). 252–259. 2 indexed citations
20.
Sugino, Yukio, Takeshi Usui, Kenichi Okubo, et al.. (2006). Genotyping of congenital adrenal hyperplasia due to 21-hydroxylase deficiency presenting as male infertility: Case report and literature review. Journal of Assisted Reproduction and Genetics. 23(9-10). 377–380. 19 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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