Kei Nakamura

1.3k total citations
87 papers, 790 citations indexed

About

Kei Nakamura is a scholar working on Psychiatry and Mental health, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Kei Nakamura has authored 87 papers receiving a total of 790 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Psychiatry and Mental health, 16 papers in Pulmonary and Respiratory Medicine and 12 papers in Surgery. Recurrent topics in Kei Nakamura's work include Dementia and Cognitive Impairment Research (32 papers), Neurological Disease Mechanisms and Treatments (6 papers) and Pharmacy and Medical Practices (5 papers). Kei Nakamura is often cited by papers focused on Dementia and Cognitive Impairment Research (32 papers), Neurological Disease Mechanisms and Treatments (6 papers) and Pharmacy and Medical Practices (5 papers). Kei Nakamura collaborates with scholars based in Japan, United States and United Kingdom. Kei Nakamura's co-authors include Kenichi Meguro, Masahiro Nakatsuka, Mari Kasai, Naofumi Tanaka, Masayuki Satoh, Hiroyasu Ishikawa, Kyoko Akanuma, Norihide Maikusa, Hiroshi Matsuda and Yuko Miyake and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Journals of Gerontology Series A and International Journal of Environmental Research and Public Health.

In The Last Decade

Kei Nakamura

77 papers receiving 771 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Nakamura Japan 15 278 197 82 72 71 87 790
Lina Rydén Sweden 18 172 0.6× 169 0.9× 51 0.6× 83 1.2× 38 0.5× 55 771
Gregory A. Dore United States 17 186 0.7× 149 0.8× 56 0.7× 55 0.8× 76 1.1× 22 950
Sara Kaffashian France 11 242 0.9× 257 1.3× 36 0.4× 83 1.2× 57 0.8× 12 791
Rosann Costa United States 10 468 1.7× 272 1.4× 45 0.5× 74 1.0× 101 1.4× 14 1.0k
R. Lantigua United States 5 526 1.9× 326 1.7× 77 0.9× 66 0.9× 29 0.4× 6 986
Marta Podhorecka Poland 10 258 0.9× 107 0.5× 38 0.5× 55 0.8× 44 0.6× 27 743
Chikako Ikeda Japan 21 191 0.7× 174 0.9× 80 1.0× 42 0.6× 87 1.2× 50 1.1k
M. A. McGee United Kingdom 14 222 0.8× 310 1.6× 49 0.6× 98 1.4× 144 2.0× 17 942
Chih‐Ta Tai Taiwan 14 389 1.4× 174 0.9× 67 0.8× 95 1.3× 20 0.3× 26 790
Andrea L. Metti United States 18 413 1.5× 356 1.8× 105 1.3× 116 1.6× 37 0.5× 33 1.1k

Countries citing papers authored by Kei Nakamura

Since Specialization
Citations

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

Fields of papers citing papers by Kei Nakamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Nakamura

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Nakamura. A scholar is included among the top collaborators of Kei Nakamura 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 Kei Nakamura. Kei Nakamura 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.
Nakamura, Kei, Atsushi Shiozaki, Toshiyuki Kosuga, et al.. (2021). The expression of the alpha1 subunit of Na+/K+-ATPase is related to tumor development and clinical outcomes in gastric cancer. Gastric Cancer. 24(6). 1278–1292. 18 indexed citations
2.
3.
Nakamura, Kei, et al.. (2020). Survival benefit of continuous positive airway pressure in Japanese patients with obstructive sleep apnea: a propensity-score matching analysis. Journal of Clinical Sleep Medicine. 17(2). 211–218. 10 indexed citations
4.
5.
Meguro, Kenichi, et al.. (2016). Neuroepidemiologic and Neurobehavioral Characteristics of Motoric Cognitive Risk Syndrome in an Old-Old Population: The Kurihara Project. Dementia and Geriatric Cognitive Disorders Extra. 6(2). 176–182. 29 indexed citations
6.
Kasai, Mari, et al.. (2016). Qualitative Assessment of Instrumental Activities of Daily Living in Older Persons with Very Mild Dementia: The Kurihara Project. Dementia and Geriatric Cognitive Disorders Extra. 6(2). 374–381. 3 indexed citations
7.
Nagata, T., et al.. (2016). Prognostic Impact of a Nutritional Index Including Muscle Volume in Stage 4 Colorectal Cancer. In Vivo. 30(6). 885–892. 17 indexed citations
8.
Nakatsuka, Masahiro, Kei Nakamura, Yumi Takahashi, et al.. (2015). A Cluster Randomized Controlled Trial of Nonpharmacological Interventions for Old-Old Subjects with a Clinical Dementia Rating of 0.5: The Kurihara Project. SHILAP Revista de lepidopterología. 5(2). 221–232. 22 indexed citations
9.
Kasai, Mari, Kenichi Meguro, & Kei Nakamura. (2014). Reliability and validity of the Japanese version of the Apathy Evaluation Scale. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 51(5). 445–452. 11 indexed citations
10.
11.
Nakatsuka, Masahiro, et al.. (2013). Content of delusional thoughts in Alzheimer's disease and assessment of content-specific brain dysfunctions with BEHAVE-AD-FW and SPECT. International Psychogeriatrics. 25(6). 939–948. 19 indexed citations
12.
Nakatsuka, Masahiro, Kei Nakamura, Yumi Takahashi, et al.. (2013). P2–363: A randomized controlled trial of psychosocial interventions for old‐old people with mild cognitive impairment (MCI): Physical and neuropsychological outcomes—The Kurihara project. Alzheimer s & Dementia. 9(4S_Part_12). 1 indexed citations
13.
Nakayama, Keiichi I., et al.. (2012). Long Absence from Work Due to Sickness among Psychiatric Out¬patients in Japan, with Reference to a Recent Trend for Perfec¬tionism. SHILAP Revista de lepidopterología. 1 indexed citations
14.
Meguro, Kenichi, Naofumi Tanaka, Mari Kasai, et al.. (2012). Prevalence of dementia and dementing diseases in the old‐old population in Japan: the Kurihara Project. Implications for Long‐Term Care Insurance data. Psychogeriatrics. 12(4). 226–234. 90 indexed citations
15.
Kasai, Mari, Kei Nakamura, Yuriko Kato, et al.. (2011). P1‐427: A community‐based study of the Montreal Cognitive Assessment (MoCA) in Japan: The Kurihara Project. Alzheimer s & Dementia. 7(4S_Part_7).
16.
Takemura, Keiji, et al.. (2011). Examination of Importance and Problems of Medication History Management in Emergency Hospitalization as Compared to Scheduled Hospitalization. Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 37(1). 41–47.
17.
Nakamura, Kei, et al.. (2010). Contribution to Proper Use of Medicines and Safety of Medical Treatment Made by Resident Pharmacists in Wards. Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 36(3). 171–179. 6 indexed citations
18.
Kasai, Mari, Kei Nakamura, & Kenichi Meguro. (2010). [Alzheimer's disease in Japan and other countries: review of epidemiological studies in the last 10 years].. PubMed. 62(7). 667–78. 10 indexed citations
19.
Yamasaki, Naomi, et al.. (2006). Evaluation of Pamphlets Used to Give Patients Instruction on Cancer Chemotherapy That Are Applicable to All Drug Regimens. Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 32(7). 657–666.
20.
Nakamura, Kei. (2004). [Morita therapy for anxiety disorders].. PubMed. 106(10). 1291–6. 1 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Lina Rydén Breakdown of academic impact, for papers by Gregory A. Dore Breakdown of academic impact, for papers by Sara Kaffashian Breakdown of academic impact, for papers by Rosann Costa Breakdown of academic impact, for papers by R. Lantigua Breakdown of academic impact, for papers by Marta Podhorecka Breakdown of academic impact, for papers by Chikako Ikeda Breakdown of academic impact, for papers by M. A. McGee Breakdown of academic impact, for papers by Chih‐Ta Tai Breakdown of academic impact, for papers by Andrea L. Metti
Rankless by CCL
2026