Ryota Sakamoto

2.4k total citations
53 papers, 1.2k citations indexed

About

Ryota Sakamoto is a scholar working on Physiology, Health and General Health Professions. According to data from OpenAlex, Ryota Sakamoto has authored 53 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Physiology, 14 papers in Health and 10 papers in General Health Professions. Recurrent topics in Ryota Sakamoto's work include Health disparities and outcomes (14 papers), Nutrition and Health in Aging (11 papers) and Dental Health and Care Utilization (8 papers). Ryota Sakamoto is often cited by papers focused on Health disparities and outcomes (14 papers), Nutrition and Health in Aging (11 papers) and Dental Health and Care Utilization (8 papers). Ryota Sakamoto collaborates with scholars based in Japan, United States and France. Ryota Sakamoto's co-authors include Kozo Matsubayashi, Kiyohito Okumiya, Yasuko Ishimoto, Taizo Wada, Yumi Kimura, Michiko Fujisawa, Eriko Fukutomi, Hissei Imai, Kuniaki Otsuka and Hideo Miyazaki and has published in prestigious journals such as PLoS ONE, Applied and Environmental Microbiology and Emerging infectious diseases.

In The Last Decade

Ryota Sakamoto

49 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryota Sakamoto Japan 21 399 267 212 185 145 53 1.2k
Yasuko Ishimoto Japan 18 376 0.9× 247 0.9× 206 1.0× 176 1.0× 145 1.0× 38 931
Yumi Kimura Japan 17 361 0.9× 218 0.8× 206 1.0× 182 1.0× 146 1.0× 50 945
Eriko Fukutomi Japan 16 283 0.7× 151 0.6× 176 0.8× 169 0.9× 141 1.0× 24 780
Taizo Wada Japan 21 457 1.1× 236 0.9× 264 1.2× 381 2.1× 383 2.6× 67 1.6k
Yasuo Suyama Japan 16 354 0.9× 114 0.4× 226 1.1× 349 1.9× 403 2.8× 31 1.4k
Taishi Tsuji Japan 25 338 0.8× 59 0.2× 173 0.8× 553 3.0× 780 5.4× 129 1.7k
Maria da Luz Rosário de Sousa Brazil 28 253 0.6× 1.6k 6.0× 118 0.6× 525 2.8× 107 0.7× 175 2.4k
Yuri Yokoyama Japan 22 895 2.2× 32 0.1× 466 2.2× 248 1.3× 134 0.9× 84 1.6k
Ayako Edahiro Japan 25 1.2k 3.1× 671 2.5× 585 2.8× 166 0.9× 75 0.5× 95 2.0k
Hidenori Amano Japan 26 1.1k 2.7× 45 0.2× 731 3.4× 434 2.3× 450 3.1× 74 2.2k

Countries citing papers authored by Ryota Sakamoto

Since Specialization
Citations

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

Fields of papers citing papers by Ryota Sakamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryota Sakamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Ryota Sakamoto. A scholar is included among the top collaborators of Ryota Sakamoto 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 Ryota Sakamoto. Ryota Sakamoto 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.
Iwasaki, Masanori, Yumi Kimura, Taizo Wada, et al.. (2025). Association between oral health-related quality of life and physical frailty among community-dwelling older adults: A 2-year longitudinal study. The Journal of Frailty & Aging. 14(1). 100008–100008.
2.
Ishimoto, Yasuko, Yumi Kimura, Taizo Wada, et al.. (2024). Association of decreased frequency of conversation with depression, oral function and eating alone: A cross‐sectional study of older adults during the COVID‐19 pandemic. Geriatrics and gerontology international. 24(S1). 385–391.
3.
Iwasaki, Masanori, Yumi Kimura, Chihiro Masaki, et al.. (2022). Periodontal status is associated with oral function in community‐dwelling older adults, independent of dentition status. Journal of Periodontal Research. 57(6). 1139–1147. 2 indexed citations
4.
Wada, Taizo, Yasuko Ishimoto, Michiko Fujisawa, et al.. (2022). Older adults' preferences for and actual situations of artificial hydration and nutrition in end‐of‐life care: An 11‐year follow‐up study in a care home. Geriatrics and gerontology international. 22(8). 581–587. 3 indexed citations
5.
Kashima, Makoto, Ryota Sakamoto, Hiroki Saito, et al.. (2021). Genomic Basis of Transcriptome Dynamics in Rice under Field Conditions. Plant and Cell Physiology. 62(9). 1436–1445. 7 indexed citations
6.
Siste, Kristiana, Enjeline Hanafi, Youdiil Ophinni, et al.. (2021). Relapse prevention group therapy via video-conferencing for substance use disorder: protocol for a multicentre randomised controlled trial in Indonesia. BMJ Open. 11(9). e050259–e050259. 2 indexed citations
7.
8.
Iwasaki, Masanori, Yumi Kimura, Chihiro Masaki, et al.. (2020). Combined effect of poor appetite and low masticatory function on sarcopenia in community‐dwelling Japanese adults aged ≥ 75 years: A 3‐year cohort study. Journal of Oral Rehabilitation. 47(5). 643–650. 15 indexed citations
9.
Musumari, Patou Masika, Teeranee Techasrivichien, Ryota Sakamoto, et al.. (2020). A qualitative study on knowledge, perception, and practice related to non-communicable diseases in relation to happiness among rural and urban residents in Bhutan. PLoS ONE. 15(6). e0234257–e0234257. 9 indexed citations
10.
Hirosaki, Mayumi, Kiyohito Okumiya, Taizo Wada, et al.. (2017). Self-rated health is associated with subsequent functional decline among older adults in Japan. International Psychogeriatrics. 29(9). 1475–1483. 21 indexed citations
11.
Iwasaki, Masanori, Akihiro Yoshihara, Yasuhisa Kimura, et al.. (2016). Longitudinal relationship of severe periodontitis with cognitive decline in older Japanese. Journal of Periodontal Research. 51(5). 681–688. 36 indexed citations
12.
Iwasaki, Masanori, Yasumi Kimura, Akihiro Yoshihara, et al.. (2015). Association between dental status and food diversity among older Japanese.. PubMed. 32(2). 104–10. 28 indexed citations
13.
Sakamoto, Ryota, Kiyohito Okumiya, Masayuki Ishine, et al.. (2015). Predictors of difficulty in carrying out basic activities of daily living among the old‐old: A 2‐year community‐based cohort study. Geriatrics and gerontology international. 16(2). 214–222. 11 indexed citations
14.
Sakamoto, Ryota. (2015). Legionnaire’s disease, weather and climate. Bulletin of the World Health Organization. 93(6). 435–436. 24 indexed citations
15.
Iwasaki, Masanori, Yumi Kimura, Akihiro Yoshihara, et al.. (2015). Oral health status in relation to cognitive function among older Japanese. Clinical and Experimental Dental Research. 1(1). 3–9. 19 indexed citations
16.
Okumiya, Kiyohito, Taizo Wada, Michiko Fujisawa, et al.. (2014). Amyotrophic lateral sclerosis and parkinsonism in Papua, Indonesia: 2001–2012 survey results. BMJ Open. 4(4). e004353–e004353. 24 indexed citations
17.
Fukutomi, Eriko, Kiyohito Okumiya, Taizo Wada, et al.. (2014). Relationships between each category of 25‐item frailty risk assessment (Kihon Checklist) and newly certified older adults under Long‐Term Care Insurance: A 24‐month follow‐up study in a rural community in Japan. Geriatrics and gerontology international. 15(7). 864–871. 112 indexed citations
18.
Kimura, Yumi, Hiroshi Ogawa, Akihiro Yoshihara, et al.. (2012). Evaluation of chewing ability and its relationship with activities of daily living, depression, cognitive status and food intake in the community‐dwelling elderly. Geriatrics and gerontology international. 13(3). 718–725. 147 indexed citations
19.
Sakamoto, Ryota, Akira Ohno, Kazunari Satomura, et al.. (2009). Legionella pneumophilain Rainwater on Roads. Emerging infectious diseases. 15(8). 1295–1297. 43 indexed citations
20.
Ohno, Akira, Naoyuki Kato, Ryota Sakamoto, Soichiro Kimura, & Keizo Yamaguchi. (2008). Temperature-Dependent Parasitic Relationship between Legionella pneumophila and a Free-Living Amoeba ( Acanthamoeba castellanii ). Applied and Environmental Microbiology. 74(14). 4585–4588. 51 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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