Keizo Ohnaka

7.7k total citations
123 papers, 3.6k citations indexed

About

Keizo Ohnaka is a scholar working on Molecular Biology, Endocrinology, Diabetes and Metabolism and Physiology. According to data from OpenAlex, Keizo Ohnaka has authored 123 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Molecular Biology, 26 papers in Endocrinology, Diabetes and Metabolism and 24 papers in Physiology. Recurrent topics in Keizo Ohnaka's work include Alcohol Consumption and Health Effects (12 papers), Nitric Oxide and Endothelin Effects (11 papers) and Liver Disease Diagnosis and Treatment (11 papers). Keizo Ohnaka is often cited by papers focused on Alcohol Consumption and Health Effects (12 papers), Nitric Oxide and Endothelin Effects (11 papers) and Liver Disease Diagnosis and Treatment (11 papers). Keizo Ohnaka collaborates with scholars based in Japan, United States and Greece. Keizo Ohnaka's co-authors include Ryoichi Takayanagi, Hajime Nawata, Hisaya Kawate, Suminori Kono, Masao Ōhashi, Mizuho Tanabe, Tadashi Inagami, Chikahisa Takasaki, Ken Yamamoto and Masafumi Haji and has published in prestigious journals such as Journal of Biological Chemistry, Circulation and SHILAP Revista de lepidopterología.

In The Last Decade

Keizo Ohnaka

122 papers receiving 3.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keizo Ohnaka Japan 31 1.3k 842 654 649 530 123 3.6k
Delbert G. Gillespie United States 37 1.3k 0.9× 377 0.4× 534 0.8× 695 1.1× 716 1.4× 102 3.7k
Concepción Peiró Spain 34 1.2k 0.9× 957 1.1× 758 1.2× 624 1.0× 254 0.5× 92 4.3k
Yiu-Fai Chen United States 40 1.2k 0.9× 582 0.7× 1.1k 1.7× 917 1.4× 759 1.4× 90 4.2k
Kyosuke Takeshita Japan 35 1.7k 1.3× 615 0.7× 981 1.5× 290 0.4× 266 0.5× 141 4.4k
Akihiko Kato Japan 41 2.0k 1.5× 529 0.6× 602 0.9× 346 0.5× 231 0.4× 223 5.1k
Keisuke Fukuo Japan 29 1000 0.7× 833 1.0× 454 0.7× 372 0.6× 199 0.4× 181 3.1k
Renming Hu China 33 855 0.6× 753 0.9× 688 1.1× 930 1.4× 253 0.5× 105 3.1k
Issei Tanaka Japan 37 1.8k 1.3× 892 1.1× 1.7k 2.6× 533 0.8× 460 0.9× 119 5.7k
Yang Xia United States 45 1.6k 1.2× 761 0.9× 582 0.9× 389 0.6× 258 0.5× 145 5.8k
Makoto Daimon Japan 38 1.1k 0.8× 658 0.8× 516 0.8× 1.1k 1.7× 360 0.7× 215 4.4k

Countries citing papers authored by Keizo Ohnaka

Since Specialization
Citations

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

Fields of papers citing papers by Keizo Ohnaka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keizo Ohnaka

This figure shows the co-authorship network connecting the top 25 collaborators of Keizo Ohnaka. A scholar is included among the top collaborators of Keizo Ohnaka 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 Keizo Ohnaka. Keizo Ohnaka 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.
Tanaka, Rumi, Kimie Fujita, Satomi Tanaka, et al.. (2021). The effect of real‐time monitoring of physical activity intensity in diabetic patients. Japan Journal of Nursing Science. 19(1). e12445–e12445. 1 indexed citations
2.
Hirata, Akie, Keizo Ohnaka, Zhenjie Wang, et al.. (2017). Effect modification of green tea on the association between rice intake and the risk of diabetes mellitus: a prospective study in Japanese men and women.. PubMed. 26(3). 545–555. 16 indexed citations
3.
Taniguchi, Itsuki, et al.. (2017). Genome-wide DNA methylation analysis reveals hypomethylation in the low-CpG promoter regions in lymphoblastoid cell lines. Human Genomics. 11(1). 8–8. 8 indexed citations
4.
Wakai, Kenji, Mariko Naito, M. Emi, et al.. (2016). Effects of self-reported calorie restriction on correlations between SIRT1 polymorphisms and body mass index and long-term weight change. Gene. 594(1). 16–22. 8 indexed citations
5.
Hara, Megumi, Kazuyo Nakamura, Hinako Nanri, et al.. (2014). Associations Between hOGG1 Ser326Cys Polymorphism and Increased Body Mass Index and Fasting Glucose Level in the Japanese General Population. Journal of Epidemiology. 24(5). 379–384. 7 indexed citations
6.
Honma, Naoko, Ken Yamamoto, Keizo Ohnaka, et al.. (2012). Estrogen receptor‐β gene polymorphism and colorectal cancer risk: Effect modified by body mass index and isoflavone intake. International Journal of Cancer. 132(4). 951–958. 19 indexed citations
7.
Okamura, Tadashi, Rieko Yanobu‐Takanashi, Fumihiko Takeuchi, et al.. (2012). Deletion of CDKAL1 Affects High-Fat Diet–Induced Fat Accumulation and Glucose-Stimulated Insulin Secretion in Mice, Indicating Relevance to Diabetes. PLoS ONE. 7(11). e49055–e49055. 26 indexed citations
8.
Morita, Makiko, Shinji Tabata, Hiroshi Abe, et al.. (2012). Methionine synthase and thymidylate synthase gene polymorphisms and colorectal adenoma risk: The self defense forces study. Molecular Carcinogenesis. 51(S1). E151–7. 7 indexed citations
9.
Nishiyama, Takeshi, Hirohisa Kishino, Sadao Suzuki, et al.. (2012). Detailed Analysis of Japanese Population Substructure with a Focus on the Southwest Islands of Japan. PLoS ONE. 7(4). e35000–e35000. 11 indexed citations
10.
Nisa, Hoirun, Sanjeev Budhathoki, Makiko Morita, et al.. (2012). Microsomal epoxide hydrolase polymorphisms, cigarette smoking, and risk of colorectal cancer: The Fukuoka Colorectal Cancer Study. Molecular Carcinogenesis. 52(8). 619–626. 11 indexed citations
11.
Wang, Lixiang, Masatoshi Nomura, Kimitaka Tanaka, et al.. (2011). Smad2 Protein Disruption in the Central Nervous System Leads to Aberrant Cerebellar Development and Early Postnatal Ataxia in Mice. Journal of Biological Chemistry. 286(21). 18766–18774. 19 indexed citations
12.
Kawate, Hisaya, et al.. (2010). Alendronate improves QOL of postmenopausal women with osteoporosis. SHILAP Revista de lepidopterología. 2 indexed citations
13.
Takahashi, Ryota, Tetsuya Mizoue, O. Tajima, et al.. (2010). Circulating vitamin D and colorectal adenomas in Japanese men. Cancer Science. 101(7). 1695–1700. 20 indexed citations
14.
Tajima, O., Shinji Tabata, Hiroshi Abe, et al.. (2008). Adiponectin and colorectal adenomas: Self Defense Forces Health Study. Cancer Science. 99(4). 781–786. 34 indexed citations
15.
Ohnaka, Keizo & Ryoichi Takayanagi. (2007). [Hormone replacement Up-to-date. Adrenopause and DHEA replacement therapy].. PubMed. 17(9). 1334–40. 1 indexed citations
16.
Cheng, W. S., Masahiro Oike, Masakazu Hirakawa, et al.. (2005). Excess l-arginine restores endothelium-dependent relaxation impaired by monocrotaline pyrrole. Toxicology and Applied Pharmacology. 207(3). 187–194. 6 indexed citations
17.
Takayanagi, Ryoichi, Wei Liu, Takeshi Ito, Keizo Ohnaka, & Hajime Nawata. (1998). Big Endothelin Analogues with Inhibitory Activity on Endothelin-Converting Enzyme-1. Journal of Cardiovascular Pharmacology. 31. S62–S63. 2 indexed citations
18.
Ishinaga, Masataka, et al.. (1993). Effects of Casein and Soy Protein on Accumulation of Cholesterol and Dolichol in Rat Liver. Experimental Biology and Medicine. 203(1). 74–77. 9 indexed citations
19.
Ohnaka, Keizo, MOTOAKI NISHIKAWA, Ryoichi Takayanagi, Masafumi Haji, & Hajime Nawata. (1992). Partial purification of phosphoramidon-sensitive endothelin converting enzyme in porcine aortic endothelial cells: High affinity for Ricinuscommunis agglutinin. Biochemical and Biophysical Research Communications. 185(2). 611–616. 13 indexed citations
20.
Takayanagi, Ryoichi, Keizo Ohnaka, Yoshiyuki Sakai, et al.. (1992). Molecular cloning, sequence analysis and expression of a cDNA encoding human type-1 angiotensin II receptor. Biochemical and Biophysical Research Communications. 183(2). 910–916. 95 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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