Hiroyuki Umegaki

220 papers and 4.7k indexed citations i.

About

Hiroyuki Umegaki is a scholar working on Physiology, Psychiatry and Mental health and Geriatrics and Gerontology. According to data from OpenAlex, Hiroyuki Umegaki has authored 220 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Physiology, 57 papers in Psychiatry and Mental health and 47 papers in Geriatrics and Gerontology. Recurrent topics in Hiroyuki Umegaki’s work include Dementia and Cognitive Impairment Research (52 papers), Frailty in Older Adults (39 papers) and Nutrition and Health in Aging (37 papers). Hiroyuki Umegaki is often cited by papers focused on Dementia and Cognitive Impairment Research (52 papers), Frailty in Older Adults (39 papers) and Nutrition and Health in Aging (37 papers). Hiroyuki Umegaki collaborates with scholars based in Japan, United States and China. Hiroyuki Umegaki's co-authors include Akihisa Iguchi, Masafumi Kuzuya, Yusuke Suzuki, Takashi Sakurai, George S. Roth, Hiroyuki Ikari, Nora D. Volkow, Donald K. Ingram, Hideki Ito and Yongquan Luo and has published in prestigious journals such as Journal of Biological Chemistry, PLoS ONE and Diabetes Care.

In The Last Decade

Co-authorship network of co-authors of Hiroyuki Umegaki i

Fields of papers citing papers by Hiroyuki Umegaki

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hiroyuki Umegaki

Since Specialization
Citations

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

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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2025