Akira Okayama

16.7k total citations
451 papers, 11.6k citations indexed

About

Akira Okayama is a scholar working on Cardiology and Cardiovascular Medicine, Public Health, Environmental and Occupational Health and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Akira Okayama has authored 451 papers receiving a total of 11.6k indexed citations (citations by other indexed papers that have themselves been cited), including 141 papers in Cardiology and Cardiovascular Medicine, 135 papers in Public Health, Environmental and Occupational Health and 83 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Akira Okayama's work include Nutritional Studies and Diet (94 papers), Blood Pressure and Hypertension Studies (80 papers) and Diabetes, Cardiovascular Risks, and Lipoproteins (63 papers). Akira Okayama is often cited by papers focused on Nutritional Studies and Diet (94 papers), Blood Pressure and Hypertension Studies (80 papers) and Diabetes, Cardiovascular Risks, and Lipoproteins (63 papers). Akira Okayama collaborates with scholars based in Japan, United States and United Kingdom. Akira Okayama's co-authors include Hirotsugu Ueshima, Tomonori Okamura, Yoshikuni Kita, Yoshihiro Kokubo, Takehito Hayakawa, Takashi Kadowaki, Katsuyuki Miura, Yasuyuki Nakamura, Kiyomi Sakata and Nagako Okuda and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Lancet and Circulation.

In The Last Decade

Akira Okayama

443 papers receiving 11.3k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Akira Okayama Japan	56	3.2k	2.5k	2.0k	1.9k	1.7k	451	11.6k
Ioanna Tzoulaki United Kingdom	58	2.3k 0.7×	2.4k 1.0×	1.5k 0.7×	1.9k 1.0×	1.6k 0.9×	186	13.9k
Claudio Ferri Italy	60	3.5k 1.1×	1.1k 0.4×	2.8k 1.4×	1.4k 0.8×	2.1k 1.2×	445	13.3k
Nancy S. Jenny United States	59	2.2k 0.7×	1.5k 0.6×	872 0.4×	1.8k 1.0×	2.4k 1.4×	177	10.6k
Stefan Pilz Austria	71	2.3k 0.7×	2.0k 0.8×	2.4k 1.2×	1.7k 0.9×	2.1k 1.2×	369	17.1k
Lars Berglund Sweden	56	1.7k 0.5×	2.8k 1.1×	1.7k 0.9×	1.1k 0.6×	2.6k 1.5×	192	11.9k
Bo Hedblad Sweden	69	5.4k 1.7×	1.8k 0.7×	2.3k 1.1×	2.8k 1.5×	2.3k 1.3×	281	15.8k
Maurizio Trevisan United States	68	2.3k 0.7×	3.7k 1.5×	3.3k 1.6×	2.6k 1.4×	2.5k 1.4×	279	18.9k
Lars J. Vatten Norway	76	3.1k 1.0×	4.5k 1.8×	2.6k 1.3×	1.8k 0.9×	3.0k 1.7×	330	20.9k
F. Javier Nieto United States	56	2.7k 0.8×	1.5k 0.6×	1.0k 0.5×	1.7k 0.9×	1.5k 0.9×	106	12.6k
Gunnar Engström Sweden	68	5.1k 1.6×	1.3k 0.5×	1.9k 0.9×	2.9k 1.5×	2.3k 1.3×	514	16.2k

Countries citing papers authored by Akira Okayama

Since Specialization

Citations

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

Fields of papers citing papers by Akira Okayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Akira Okayama

This figure shows the co-authorship network connecting the top 25 collaborators of Akira Okayama. A scholar is included among the top collaborators of Akira Okayama 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 Akira Okayama. Akira Okayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Okuda, Nagako, Akira Okayama, Katsuyuki Miura, et al.. (2020). Food Sources of Dietary Potassium in the Adult Japanese Population: The International Study of Macro-/Micronutrients and Blood Pressure (INTERMAP). Nutrients. 12(3). 787–787. 18 indexed citations

Nakamura, Tomiyo, Yasuyuki Nakamura, Shigeyuki Saitoh, et al.. (2018). Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population: NIPPON DATA2010. Journal of Epidemiology. 28(Supplement_III). S10–S16. 32 indexed citations

Ito, Takahiro, Hisatomi Arima, Akira Fujiyoshi, et al.. (2016). Relationship between non-high-density lipoprotein cholesterol and the long-term mortality of cardiovascular diseases: NIPPON DATA 90. International Journal of Cardiology. 220. 262–267. 24 indexed citations

Segawa, Toshie, Fumitaka Tanaka, Tomohiro Takahashi, et al.. (2013). Cardiovascular Risk Stratification With Plasma B-Type Natriuretic Peptide Levels in a Community-Based Hypertensive Cohort. The American Journal of Cardiology. 113(4). 682–686. 5 indexed citations

Yokokawa, Hirohide, Aya Goto, Tran Quang Nam, et al.. (2010). Diabetes Control among Vietnamese Patients in Ho Chi Minh City: An Observational Cross-Sectional Study. 13. 1–13. 8 indexed citations

Miura, Katsuyuki, Jeremiah Stamler, Hideaki Nakagawa, et al.. (2008). Relationship of Dietary Linoleic Acid to Blood Pressure. Hypertension. 52(2). 408–414. 72 indexed citations

Ueshima, Hirotsugu, Aya Kadota, Atsushi Hozawa, et al.. (2008). 糖尿病男性でアルコール摂取は制限すべきか:NIPPON DATA80. Circulation. 72. 202. 1 indexed citations

Yamashita, Katsuhiro, Akira Okayama, T. Sato, Yasuaki Nishimura, & Hiroaki Naritomi. (2008). The management outcome of patients with cerebral infarction is significantly affected by the number of clinicians in the institution. Nosotchu. 30(6). 846–851. 1 indexed citations

Nakamura, Koshi, Tomonori Okamura, Takehito Hayakawa, et al.. (2007). The Proportion of Individuals with Alcohol-Induced Hypertension among Total Hypertensives in a General Japanese Population: NIPPON DATA90. Hypertension Research. 30(8). 663–668. 46 indexed citations

10.

Taniwaki, Takayuki, Akira Okayama, Takashi Yoshiura, et al.. (2007). Age-related alterations of the functional interactions within the basal ganglia and cerebellar motor loops in vivo. NeuroImage. 36(4). 1263–1276. 50 indexed citations

11.

Nakamura, Keijiro, et al.. (2007). Medical costs of obese Japanese: a 10-year follow-up study of National Health Insurance in Shiga, Japan. European Journal of Public Health. 17(5). 424–429. 28 indexed citations

12.

Nakamura, Yasuyuki, Hirotsugu Ueshima, Takehito Hayakawa, et al.. (2007). Abstract 3485: A Japanese Diet and 19-Year Mortality: NIPPON DATA80.. Circulation. 116.

13.

Omama, Shinichi, Yuki Yoshida, Akiya Ogawa, Toshiyuki Onoda, & Akira Okayama. (2006). Differences in circadian variation of cerebral infarction, intracerebral haemorrhage and subarachnoid haemorrhage by situation at onset. Journal of Neurology Neurosurgery & Psychiatry. 77(12). 1345–1349. 82 indexed citations

14.

Kimura, Rina, Toshiyuki Sakata, Yoshihiro Kokubo, et al.. (2006). Plasma protein S activity correlates with protein S genotype but is not sensitive to identify K196E mutant carriers. Journal of Thrombosis and Haemostasis. 4(9). 2010–2013. 22 indexed citations

15.

Hozawa, Atsushi, Yoshitaka Murakami, Tomonori Okamura, et al.. (2006). Relation of Adult Height With Stroke Mortality in Japan. Stroke. 38(1). 22–26. 42 indexed citations

16.

Gao, Guangyu, Sherri O. Stuver, Akira Okayama, et al.. (2005). The minimum number of clones necessary to sequence in order to obtain the maximum information about hepatitis C virus quasispecies: a comparison of subjects with and without liver cancer. Journal of Viral Hepatitis. 12(1). 46–50. 2 indexed citations

17.

Uno, Tsukasa, Etsuko Kobayashi, Yasushi Suwazono, et al.. (2005). Health effects of cadmium exposure in the general environment in Japan with special reference to the lower limit of the benchmark dose as the threshold level of urinary cadmium. Scandinavian Journal of Work Environment & Health. 31(4). 307–315. 45 indexed citations

18.

Kokubo, Yoshihiro, Nozomu Inamoto, Akira Okayama, et al.. (2005). 日本人集団における高血圧とCYBA,CLCNKB,およびKCNMB1の機能的遺伝子多型性の間の関連分析:吹田の研究. Circulation. 69(2). 138–142. 50 indexed citations

19.

Morikawa, Yuko, H Nakagawa, Akira Okayama, et al.. (2002). A cross-sectional study on association of calcium intake with blood pressure in Japanese population. Journal of Human Hypertension. 16(2). 105–110. 16 indexed citations

20.

Futani, Hiroyuki, et al.. (2001). The role of imaging modalities in the diagnosis of primary dedifferentiated parosteal osteosarcoma. Journal of Orthopaedic Science. 6(3). 290–294. 18 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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