Sumika Ohyama

702 total citations
20 papers, 598 citations indexed

About

Sumika Ohyama is a scholar working on Surgery, Molecular Biology and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Sumika Ohyama has authored 20 papers receiving a total of 598 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 13 papers in Molecular Biology and 6 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Sumika Ohyama's work include Pancreatic function and diabetes (14 papers), Metabolism, Diabetes, and Cancer (11 papers) and Diabetes Treatment and Management (6 papers). Sumika Ohyama is often cited by papers focused on Pancreatic function and diabetes (14 papers), Metabolism, Diabetes, and Cancer (11 papers) and Diabetes Treatment and Management (6 papers). Sumika Ohyama collaborates with scholars based in Japan and United States. Sumika Ohyama's co-authors include Jun‐ichi Eiki, T. Nishimura, Yasufumi Nagata, Hideka Hosaka, Kaori Sasaki, Tomoharu Iino, Kenji Kamata, Mayumi Futamura, Masato Chiba and Katsutaka Oishi and has published in prestigious journals such as Journal of Biological Chemistry, PLoS ONE and Biochemical and Biophysical Research Communications.

In The Last Decade

Sumika Ohyama

19 papers receiving 570 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sumika Ohyama Japan 15 374 358 227 109 66 20 598
J Camus Belgium 11 360 1.0× 170 0.5× 84 0.4× 19 0.2× 81 1.2× 24 625
Thomas B. Farb United States 10 270 0.7× 190 0.5× 217 1.0× 5 0.0× 48 0.7× 10 469
Wijnand J. C. van der Velden Denmark 10 352 0.9× 172 0.5× 367 1.6× 15 0.1× 82 1.2× 18 656
Wensheng Lang United States 11 188 0.5× 95 0.3× 112 0.5× 14 0.1× 77 1.2× 22 473
Leelee Ng Australia 12 269 0.7× 68 0.2× 51 0.2× 29 0.3× 16 0.2× 16 451
Nathaniel Wallace United States 11 119 0.3× 47 0.1× 65 0.3× 66 0.6× 84 1.3× 15 483
William Low United States 9 278 0.7× 58 0.2× 61 0.3× 44 0.4× 54 0.8× 10 533
Morten Schlein Denmark 9 241 0.6× 77 0.2× 79 0.3× 27 0.2× 40 0.6× 12 347
Ryan P. Trump United States 10 142 0.4× 28 0.1× 133 0.6× 91 0.8× 39 0.6× 11 375
Tom van der Wel Netherlands 9 112 0.3× 82 0.2× 42 0.2× 45 0.4× 35 0.5× 15 329

Countries citing papers authored by Sumika Ohyama

Since Specialization
Citations

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

Fields of papers citing papers by Sumika Ohyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sumika Ohyama

This figure shows the co-authorship network connecting the top 25 collaborators of Sumika Ohyama. A scholar is included among the top collaborators of Sumika Ohyama 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 Sumika Ohyama. Sumika Ohyama 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.
Oishi, Katsutaka, et al.. (2017). Chronic sleep disorder induced by psychophysiological stress induces glucose intolerance without adipose inflammation in mice. Biochemical and Biophysical Research Communications. 495(4). 2616–2621. 11 indexed citations
2.
Onishi, Yukiko, Tomonori Oura, Hiroshi Nishiyama, et al.. (2015). Subgroup analysis of phase 3 studies of dulaglutide in Japanese patients with type 2 diabetes. Endocrine Journal. 63(3). 263–273. 27 indexed citations
3.
Miyazaki, Koyomi, Nanako Itoh, Sumika Ohyama, Koji Kadota, & Katsutaka Oishi. (2013). Continuous Exposure to a Novel Stressor Based on Water Aversion Induces Abnormal Circadian Locomotor Rhythms and Sleep-Wake Cycles in Mice. PLoS ONE. 8(1). e55452–e55452. 34 indexed citations
4.
Eiki, Jun‐ichi, Yasufumi Nagata, Mayumi Futamura, et al.. (2011). Pharmacokinetic and Pharmacodynamic Properties of the Glucokinase Activator MK-0941 in Rodent Models of Type 2 Diabetes and Healthy Dogs. Molecular Pharmacology. 80(6). 1156–1165. 25 indexed citations
5.
Nakamura, Akinobu, et al.. (2011). Effect of long-term treatment with a small-molecule glucokinase activator on glucose metabolism, lipid profiles and hepatic function. Journal of Diabetes Investigation. 2(4). 276–279. 13 indexed citations
6.
Miyazaki, Koyomi, Nanako Itoh, Sumika Ohyama, Naoki Ohkura, & Katsutaka Oishi. (2011). Development and characterization of mouse model for stress induced sleep disorder. Neuroscience Research. 71. e172–e173.
7.
Ohyama, Sumika, Hiroki Takano, Tomoharu Iino, et al.. (2010). A small-molecule glucokinase activator lowers blood glucose in the sulfonylurea-desensitized rat. European Journal of Pharmacology. 640(1-3). 250–256. 18 indexed citations
8.
Ishikawa, Makoto, Katsumasa Nonoshita, Yoshio Ogino, et al.. (2009). Discovery of novel 2-(pyridine-2-yl)-1H-benzimidazole derivatives as potent glucokinase activators. Bioorganic & Medicinal Chemistry Letters. 19(15). 4450–4454. 46 indexed citations
9.
Eiki, Jun‐ichi, Norihiro Nagano, Tomoharu Iino, et al.. (2009). A selective small molecule glucagon-like peptide-1 secretagogue acting via depolarization-coupled Ca2+ influx. Journal of Endocrinology. 201(3). 361–367. 16 indexed citations
10.
Iino, Tomoharu, Kenji Kamata, Kaori Sasaki, et al.. (2009). Discovery of potent and orally active 3-alkoxy-5-phenoxy-N-thiazolyl benzamides as novel allosteric glucokinase activators. Bioorganic & Medicinal Chemistry. 17(7). 2733–2743. 55 indexed citations
11.
Iino, Tomoharu, Yasuhiro Sasaki, Morihiro Mitsuya, et al.. (2009). Discovery and structure–activity relationships of a novel class of quinazoline glucokinase activators. Bioorganic & Medicinal Chemistry Letters. 19(19). 5531–5538. 33 indexed citations
12.
Takahashi, Keiji, Noriaki Hashimoto, Kenji Kamata, et al.. (2009). The design and optimization of a series of 2-(pyridin-2-yl)-1H-benzimidazole compounds as allosteric glucokinase activators. Bioorganic & Medicinal Chemistry. 17(19). 7042–7051. 30 indexed citations
13.
Iino, Tomoharu, Noriaki Hashimoto, Kaori Sasaki, et al.. (2009). Structure–activity relationships of 3,5-disubstituted benzamides as glucokinase activators with potent in vivo efficacy. Bioorganic & Medicinal Chemistry. 17(11). 3800–3809. 45 indexed citations
14.
Nishimura, T., Tomoharu Iino, Morihiro Mitsuya, et al.. (2009). Identification of novel and potent 2-amino benzamide derivatives as allosteric glucokinase activators. Bioorganic & Medicinal Chemistry Letters. 19(5). 1357–1360. 38 indexed citations
15.
Mitsuya, Morihiro, Kenji Kamata, Hitomi Watanabe, et al.. (2009). Discovery of novel 3,6-disubstituted 2-pyridinecarboxamide derivatives as GK activators. Bioorganic & Medicinal Chemistry Letters. 19(10). 2718–2721. 38 indexed citations
16.
Nakamura, Akinobu, Yasuo Terauchi, Sumika Ohyama, et al.. (2008). Impact of Small-Molecule Glucokinase Activator on Glucose Metabolism and β-Cell Mass. Endocrinology. 150(3). 1147–1154. 53 indexed citations
17.
Fujimura, M., Takao Nakamura, Sumika Ohyama, et al.. (2007). Metabolic impact of overexpression of liver glycogen synthase with serine-to-alanine substitutions in rat primary hepatocytes. Archives of Biochemistry and Biophysics. 466(2). 283–289. 6 indexed citations
18.
Futamura, Mayumi, Hideka Hosaka, Kaori Sasaki, et al.. (2006). An Allosteric Activator of Glucokinase Impairs the Interaction of Glucokinase and Glucokinase Regulatory Protein and Regulates Glucose Metabolism. Journal of Biological Chemistry. 281(49). 37668–37674. 86 indexed citations
19.
Hara, Hiroshi, et al.. (2001). Endogenous cholecystokinin plays a role in down-regulation of pancreatic amylase independent of dietary carbohydrate in rats. Regulatory Peptides. 99(2-3). 103–110. 7 indexed citations
20.
Hara, Hiroshi, Sumika Ohyama, & Tohru Hira. (2000). Luminal dietary protein, not amino acids, induces pancreatic protease via CCK in pancreaticobiliary-diverted rats. American Journal of Physiology-Gastrointestinal and Liver Physiology. 278(6). G937–G945. 17 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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