Ken‐ichi Samejima

1.1k total citations
42 papers, 509 citations indexed

About

Ken‐ichi Samejima is a scholar working on Nephrology, Surgery and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Ken‐ichi Samejima has authored 42 papers receiving a total of 509 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Nephrology, 11 papers in Surgery and 10 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Ken‐ichi Samejima's work include Chronic Kidney Disease and Diabetes (14 papers), Renal Diseases and Glomerulopathies (10 papers) and Dialysis and Renal Disease Management (8 papers). Ken‐ichi Samejima is often cited by papers focused on Chronic Kidney Disease and Diabetes (14 papers), Renal Diseases and Glomerulopathies (10 papers) and Dialysis and Renal Disease Management (8 papers). Ken‐ichi Samejima collaborates with scholars based in Japan and United States. Ken‐ichi Samejima's co-authors include Masaru Matsui, Yasuhiro Akai, Yoshihiko Saito, Kazuhiko Tsuruya, Masayuki Iwano, Masahiro Eriguchi, Kimihiko Nakatani, Hirokazu Sakan, Shuhei Yoshimoto and Osamu Asai and has published in prestigious journals such as Scientific Reports, Kidney International and Atherosclerosis.

In The Last Decade

Ken‐ichi Samejima

35 papers receiving 504 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ken‐ichi Samejima Japan 12 306 96 90 77 76 42 509
Shingo Okuno Japan 11 243 0.8× 29 0.3× 74 0.8× 61 0.8× 47 0.6× 27 450
Deborah Kees‐Folts United States 10 224 0.7× 47 0.5× 75 0.8× 52 0.7× 82 1.1× 16 624
Tadashi Sofue Japan 12 328 1.1× 51 0.5× 89 1.0× 19 0.2× 77 1.0× 52 540
Laura Florea Romania 11 124 0.4× 59 0.6× 104 1.2× 57 0.7× 24 0.3× 33 387
Angela C. Cooper United Kingdom 8 209 0.7× 36 0.4× 76 0.8× 56 0.7× 66 0.9× 8 711
Pazit Beckerman Israel 11 450 1.5× 42 0.4× 45 0.5× 75 1.0× 90 1.2× 34 770
Umut Selda Bayrakçı Türkiye 13 189 0.6× 30 0.3× 81 0.9× 23 0.3× 107 1.4× 59 510
Marcin Krzanowski Poland 12 126 0.4× 52 0.5× 44 0.5× 26 0.3× 62 0.8× 56 370
Arvind Ponnusamy United Kingdom 9 199 0.7× 32 0.3× 40 0.4× 76 1.0× 25 0.3× 32 356
Tiziana Spatola Italy 10 139 0.5× 61 0.6× 57 0.6× 21 0.3× 55 0.7× 12 423

Countries citing papers authored by Ken‐ichi Samejima

Since Specialization
Citations

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

Fields of papers citing papers by Ken‐ichi Samejima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ken‐ichi Samejima. 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 Ken‐ichi Samejima. The network helps show where Ken‐ichi Samejima may publish in the future.

Co-authorship network of co-authors of Ken‐ichi Samejima

This figure shows the co-authorship network connecting the top 25 collaborators of Ken‐ichi Samejima. A scholar is included among the top collaborators of Ken‐ichi Samejima 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 Ken‐ichi Samejima. Ken‐ichi Samejima 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
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Eriguchi, Masahiro, Hiroyuki Tamaki, Mari Nakanishi, et al.. (2025). Fibroblast Growth Factor 23, Urinary Phosphate, and Risk of Progression of CKD. Clinical Journal of the American Society of Nephrology. 21(2). 201–210.
3.
Noda, Tatsuya, Tomoya Myojin, Yuichi Nishioka, et al.. (2025). Incidence and risk of cancer emergence among patients post-kidney transplantation in Japan. Clinical and Experimental Nephrology. 29(12). 1892–1901.
4.
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Eriguchi, Masahiro, Hiroyuki Tamaki, Kaori Tanabe, et al.. (2023). Differential impact of glomerular and tubule-interstitial histological changes on kidney outcome between non-proteinuric and proteinuric diabetic nephropathy. Clinical and Experimental Nephrology. 28(4). 282–292. 3 indexed citations
6.
Murashima, Miho, Masaru Matsui, Masahiro Eriguchi, et al.. (2023). The use of anti-adrenergic agents as a predictor of acute kidney injury and delayed recovery of kidney function: the NARA-AKI cohort study. Hypertension Research. 46(11). 2470–2477. 3 indexed citations
7.
Kubo, Shinichiro, Tatsuya Noda, Tomoya Myojin, et al.. (2022). Tracing all patients who received insured dialysis treatment in Japan and the present situation of their number of deaths. Clinical and Experimental Nephrology. 26(4). 360–367. 7 indexed citations
8.
Tanabe, Kaori, Ken‐ichi Samejima, Keisuke Okamoto, et al.. (2021). Association of initial prednisolone dose with remission, relapse, and infectious complications in adult-onset minimal change disease. Clinical and Experimental Nephrology. 26(1). 29–35.
9.
Itami, Hiroe, Shigeo Hara, Ken‐ichi Samejima, et al.. (2020). Complement activation is associated with crescent formation in IgA nephropathy. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 477(4). 565–572. 22 indexed citations
10.
Murashima, Miho, Masaru Matsui, Masahiro Eriguchi, et al.. (2019). Positive association between intra-operative fluid balance and post-operative acute kidney injury in non-cardiac surgery: the NARA-AKI cohort study. Journal of Nephrology. 33(3). 561–568. 13 indexed citations
11.
Kasahara, Kei, Yoshihiko Ogawa, Ken‐ichi Samejima, et al.. (2019). Peritonitis due to Moraxella osloensis: A case report and literature review. Journal of Infection and Chemotherapy. 25(12). 1050–1052. 8 indexed citations
12.
Matsui, Masaru, Masahiro Eriguchi, Ken‐ichi Samejima, et al.. (2019). A Prediction Model with Lifestyle in Addition to Previously Known Risk Factors Improves Its Predictive Ability for Cardiovascular Death. Scientific Reports. 9(1). 12953–12953. 6 indexed citations
13.
Murashima, Miho, Takayuki Hamano, Masaru Matsui, et al.. (2019). Inflammation as a predictor of acute kidney injury and mediator of higher mortality after acute kidney injury in non-cardiac surgery. Scientific Reports. 9(1). 20260–20260. 48 indexed citations
14.
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Matsui, Masaru, Ken‐ichi Samejima, Yukiji Takeda, et al.. (2016). Angiogenic Factors and Risks of Technique Failure and Cardiovascular Events in Patients Receiving Peritoneal Dialysis. Cardiorenal Medicine. 6(3). 251–259. 1 indexed citations
16.
Matsui, Masaru, Ken‐ichi Samejima, Yukiji Takeda, et al.. (2015). Prognostic Impact of Placental Growth Factor on Mortality and Cardiovascular Events in Dialysis Patients. American Journal of Nephrology. 42(2). 117–125. 3 indexed citations
17.
Matsui, Masaru, et al.. (2012). Heart Failure Associated with Metastatic Myocardial Calcification in a Hemodialysis Patient with Progressive Calcification of the Hand. Cardiorenal Medicine. 2(4). 251–255. 15 indexed citations
18.
Asai, Osamu, Kimihiko Nakatani, Tomohiro Tanaka, et al.. (2012). Decreased renal α-Klotho expression in early diabetic nephropathy in humans and mice and its possible role in urinary calcium excretion. Kidney International. 81(6). 539–547. 132 indexed citations
19.
Samejima, Ken‐ichi, et al.. (2009). Anti-MuSK antibody-positive myasthenia gravis with nephrotic syndrome; a case report. Rinsho Shinkeigaku. 49(7). 424–427.
20.
Kubo, Atsushi, Masayuki Iwano, Yoshiyuki Kobayashi, et al.. (2002). In vitro Effects of Habu Snake Venom on Cultured Mesangial Cells. ˜The œNephron journals/Nephron journals. 92(3). 665–672. 13 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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