Ken‐ichi Samejima

1.1k citations

42 papers · 509 indexed · h-index 12

Impact in

Nephrology top 2%
- Parathyroid Disorders and Treatments
- Chronic Kidney Disease and Diabetes
- Acute Kidney Injury Research
- Renal Diseases and Glomerulopathies
- Dialysis and Renal Disease Management
Cardiology and Cardiovascular Medicine
- Cardiac, Anesthesia and Surgical Outcomes

Papers in ⓘ

Nephrology 30
- Chronic Kidney Disease and Diabetes 14
- Renal Diseases and Glomerulopathies 10
- Acute Kidney Injury Research 8
- Dialysis and Renal Disease Management 8
- Parathyroid Disorders and Treatments 4
Transplantation 2

Co-authors: Masaru Matsui (31 shared papers)Yasuhiro Akai (19 shared papers)Yoshihiko Saito (14 shared papers)Kazuhiko Tsuruya (27 shared papers)Masayuki Iwano (7 shared papers)Masahiro Eriguchi (26 shared papers)Kimihiko Nakatani (5 shared papers)Shuhei Yoshimoto (3 shared papers)
Journals: Scientific Reports (3 papers)Hypertension Research (3 papers)Nephrology Dialysis Transplantation (3 papers)Journal of Nephrology (2 papers)Clinical Kidney Journal (2 papers)
Partner nations: Japan United States

In The Last Decade

Ken‐ichi Samejima

35 papers receiving 504 citations

Peers

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-authors

The 25 scholars most cited alongside Ken‐ichi Samejima, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ken‐ichi Samejima Line = papers co-authored together Ken‐ichi Samejima links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 42 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Decreased renal α-Klotho expression in early diabetic nephropathy in humans and mice and its possible role in urinary calcium excretion Kidney International ·Osamu Asai, Kimihiko Nakatani, Tomohiro Tanaka, Hirokazu Sakan, Akihiro Imura, Shuhei Yoshimoto, Ken‐ichi Samejima, Yukinari Yamaguchi, Masaru Matsui, Yasuhiro Akai, Noboru Konishi, Masayuki Iwano, Yo‐ichi Nabeshima, Yoshihiko Saito	2012	132
2	Fractalkine expression and CD16⁺monocyte accumulation in glomerular lesions: association with their severity and diversity in lupus models American Journal of Physiology-Renal Physiology ·Kimihiko Nakatani, Shuhei Yoshimoto, Masayuki Iwano, Osamu Asai, Ken‐ichi Samejima, Hirokazu Sakan, Miho Terada, Hitoshi Hasegawa, Masato Nose, Yoshihiko Saito	2010	50
3	Inflammation as a predictor of acute kidney injury and mediator of higher mortality after acute kidney injury in non-cardiac surgery Scientific Reports ·Miho Murashima, Masatoshi Nishimoto, Maiko Kokubu, Takayuki Hamano, Masaru Matsui, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2019	48
4	Suppressed soluble Fms–like tyrosine kinase-1 production aggravates atherosclerosis in chronic kidney disease Kidney International ·Masaru Matsui, Yukiji Takeda, Shiro Uemura, Takaki Matsumoto, Ayako Seno, Kenji Onoue, Hideo Tsushima, Katsuhiko Morimoto, Tsunenari Soeda, Satoshi Okayama, Satoshi Somekawa, Ken‐ichi Samejima, Hiroyuki Kawata, Rika Kawakami, Kimihiko Nakatani, Masayuki Iwano, Yoshihiko Saito	2013	31
5	Complement activation is associated with crescent formation in IgA nephropathy Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin ·Hiroe Itami, Shigeo Hara, Ken‐ichi Samejima, Hideo Tsushima, Katsuhiko Morimoto, Keisuke Okamoto, Takaaki Kosugi, Takahiro Kawano, Kengo Fujiki, Hiromichi Kitada, Kinta Hatakeyama, Kazuhiko Tsuruya, Chiho Ohbayashi	2020	22
6	Association between chronic kidney disease and new-onset dyslipidemia: The Japan Specific Health Checkups (J-SHC) study Atherosclerosis ·Takaaki Kosugi, Masahiro Eriguchi, Hisako Yoshida, Hikari Tasaki, Fumihiro Fukata, Masatoshi Nishimoto, Masaru Matsui, Ken‐ichi Samejima, Kunitoshi Iseki, Shouichi Fujimoto, Tsuneo Konta, Toshiki Moriyama, Kunihiro Yamagata, Ichiei Narita, Masato Kasahara, Yugo Shibagaki, Masahide Kondo, Koichi Asahi, Tsuyoshi Watanabe, Kazuhiko Tsuruya	2021	18
7	Heart Failure Associated with Metastatic Myocardial Calcification in a Hemodialysis Patient with Progressive Calcification of the Hand Cardiorenal Medicine ·Masaru Matsui, Satoshi Okayama, Akihiro Takitsume, Katsuhiko Morimoto, Ken‐ichi Samejima, Shiro Uemura, Yoshihiko Saito	2012	15
8	Renal arteriolar hyalinosis, not intimal thickening in large arteries, is associated with cardiovascular events in people with biopsy‐proven diabetic nephropathy Diabetic Medicine ·Katsuhiko Morimoto, Masaru Matsui, Ken‐ichi Samejima, Tomoko Kanki, Mitsuhiro Nishimoto, K. Tanabe, Miho Murashima, Masahiro Eriguchi, Yasuhiro Akai, Masayuki Iwano, Hideo Shiiki, H. Yamada, Masao Kanauchi, Kazuhiro Dohi, Kazuhiko Tsuruya, Yoshihiko Saito	2020	15
9	External Validation of a Prediction Model for Acute Kidney Injury Following Noncardiac Surgery JAMA Network Open ·Masatoshi Nishimoto, Miho Murashima, Maiko Kokubu, Masaru Matsui, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2021	14
10	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 ·Masatoshi Nishimoto, Miho Murashima, Maiko Kokubu, Masaru Matsui, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2019	13
11	In vitro Effects of Habu Snake Venom on Cultured Mesangial Cells The Nephron journals/Nephron journals ·Atsushi Kubo, Masayuki Iwano, Yoshiyuki Kobayashi, Yusuke Kyoda, Yoshitaka Isumi, Naoki Maruyama, Ken‐ichi Samejima, Yoshiko Dohi, Naoto Minamino, Kunio Yonemasu	2002	13
12	Acute kidney injury as an independent predictor of infection and malignancy: the NARA-AKI cohort study Journal of Nephrology ·Miho Tagawa, Masatoshi Nishimoto, Maiko Kokubu, Masaru Matsui, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2019	13
13	Pre-operative proteinuria and post-operative acute kidney injury in noncardiac surgery: the NARA-Acute Kidney Injury cohort study Nephrology Dialysis Transplantation ·Masatoshi Nishimoto, Miho Murashima, Maiko Kokubu, Masaru Matsui, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2019	11
14	Levels of MCP-1 and GM-CSF mRNA Correlated with Inflammatory Cytokines mRNA Levels in Experimental Autoimmune Myocarditis in Rats Autoimmunity ·Yoshiyuki Kobayashi, Atsushi Kubo, Masayuki Iwano, Yasuhiro Sakaguchi, Ken‐ichi Samejima, Yusuke Kyoda, Kunio Yonemasu, Toshio Hashimoto	2002	11
15	Relationship between initial peritoneal dialysis modality and risk of peritonitis Scientific Reports ·Maiko Kokubu, Masaru Matsui, Takayuki Uemura, Katsuhiko Morimoto, Masahiro Eriguchi, Ken‐ichi Samejima, Yasuhiro Akai, Kazuhiko Tsuruya	2020	9
16	Therapeutic Benefits of Tocilizumab Vary in Different Organs of a Patient with AA Amyloidosis Case Reports in Nephrology ·Masaru Matsui, Satoshi Okayama, Hideo Tsushima, Ken‐ichi Samejima, Tomoko Kanki, Ayako Hasegawa, Katsuhiko Morimoto, Yasuhiro Akai, Masato Takano, Shiro Uemura, Chiho Ohbayashi, Yoshihiko Saito	2014	9
17	Peritonitis due to Moraxella osloensis: A case report and literature review Journal of Infection and Chemotherapy ·Ayano Yamada, Kei Kasahara, Yoshihiko Ogawa, Ken‐ichi Samejima, Masahiro Eriguchi, Hisakazu Yano, Keiichi Mikasa, Kazuhiko Tsuruya	2019	8
18	Clinical Significance of Fibroblast-Specific Protein-1 Expression on Podocytes in Patients with Focal Segmental Glomerulosclerosis Nephron Clinical Practice ·Ken‐ichi Samejima, Kimihiko Nakatani, Daisuke Suzuki, Osamu Asai, Hirokazu Sakan, Shuhei Yoshimoto, Yukinari Yamaguchi, Masaru Matsui, Yasuhiro Akai, Masao Toyoda, Masayuki Iwano, Yoshihiko Saito	2011	8
19	Tracing all patients who received insured dialysis treatment in Japan and the present situation of their number of deaths Clinical and Experimental Nephrology ·Shinichiro Kubo, Tatsuya Noda, Tomoya Myojin, Yuichi Nishioka, Saho Kanno, Tsuneyuki Higashino, Masatoshi Nishimoto, Masahiro Eriguchi, Ken‐ichi Samejima, Kazuhiko Tsuruya, Tomoaki Imamura	2022	7
20	Microscopic hematuria is a risk factor for end-stage kidney disease in patients with biopsy-proven diabetic nephropathy BMJ Open Diabetes Research & Care ·Sadanori Okada, Ken‐ichi Samejima, Masaru Matsui, Katsuhiko Morimoto, Riri Furuyama, Kaori Tanabe, Masahiro Eriguchi, Yasuhiro Akai, Yoshihiko Saito, Kazuhiko Tsuruya	2020	7

About Ken‐ichi Samejima

Ken‐ichi Samejima is a scholar working on Nephrology, Transplantation, Cardiology and Cardiovascular Medicine, Immunology and Allergy and Emergency Medical Services, having authored 42 papers that have together received 509 indexed citations. Recurring topics across this work include Chronic Kidney Disease and Diabetes (14 papers), Renal Diseases and Glomerulopathies (10 papers), Acute Kidney Injury Research (8 papers), Dialysis and Renal Disease Management (8 papers), Cardiac, Anesthesia and Surgical Outcomes (5 papers), Hemodynamic Monitoring and Therapy (4 papers), Parathyroid Disorders and Treatments (4 papers) and Muscle and Compartmental Disorders (3 papers). The work is most often cited by research in Nephrology (306 citations), Cardiology and Cardiovascular Medicine (96 citations), Immunology (76 citations), Transplantation (8 citations) and Critical Care and Intensive Care Medicine (15 citations). Ken‐ichi Samejima has collaborated with scholars based in Japan and United States. Frequent co-authors include Masaru Matsui, Yasuhiro Akai, Yoshihiko Saito, Kazuhiko Tsuruya, Masayuki Iwano, Masahiro Eriguchi, Kimihiko Nakatani, Shuhei Yoshimoto, Hirokazu Sakan and Osamu Asai. Their work appears in journals such as Scientific Reports, Hypertension Research, Nephrology Dialysis Transplantation, Journal of Nephrology and Clinical Kidney Journal.

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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