Junji Toyama
About
Junji Toyama is a scholar working on Cardiology and Cardiovascular Medicine, Molecular Biology and Cellular and Molecular Neuroscience.
According to data from OpenAlex, Junji Toyama has authored 159 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 132 papers in Cardiology and Cardiovascular Medicine, 59 papers in Molecular Biology and 24 papers in Cellular and Molecular Neuroscience. Recurrent topics in Junji Toyama's work include Cardiac electrophysiology and arrhythmias (101 papers), Ion channel regulation and function (53 papers) and Cardiac Arrhythmias and Treatments (41 papers). Junji Toyama is often cited by papers focused on Cardiac electrophysiology and arrhythmias (101 papers), Ion channel regulation and function (53 papers) and Cardiac Arrhythmias and Treatments (41 papers). Junji Toyama collaborates with scholars based in Japan, United States and Greece. Junji Toyama's co-authors include Kaichiro Kamiya, Itsuo Kodama, Kazuo Yamada, Itsuo Kodama, Naoya Tsuboi, Kazuo Yamada, Toyoaki Murohara, Makoto Hirai, Yoshimasa Murakami and Takumi Yamada and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and Biochemical and Biophysical Research Communications.
In The Last Decade
Junji Toyama
152 papers receiving 2.5k citations
Peers
Junji Toyama
Henry Gelband United States
Arthur L. Bassett United States
Michael Knaut Germany
Gideon Koren United States
Peter Danilo United States
Rainer Schimpf Germany
Joachim R. Ehrlich Germany
William B. Gough United States
Malcolm Bersohn United States
Richard S. Tunin United States
Citations per year, relative to Junji Toyama Junji Toyama (= 1×)
peers
Henry Gelband
Countries citing papers authored by Junji Toyama
Since
Specialization
Citations
This map shows the geographic impact of Junji Toyama'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 Junji Toyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Junji Toyama more than expected).
Fields of papers citing papers by Junji Toyama
Since
Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences
This network shows the impact of papers produced by Junji Toyama. 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 Junji Toyama. The network helps show where Junji Toyama may publish in the future.
Co-authorship network of co-authors of Junji Toyama
This figure shows the co-authorship network connecting the top 25 collaborators of Junji Toyama. A scholar is included among the top collaborators of Junji Toyama 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 Junji Toyama. Junji Toyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
1.
Yoshida, Naoki, Yoshimasa Murakami, Takumi Yamada, et al.. (2008). PJ-394 Sleep Apnea Syndrome May Play a Role in the Higher Incidence of Non-Pulmonary Vein Ectopic Beats Initiating Atrial Fibrillation(Arrhythmia, diagnosis/Pathophysiology/EPS(14)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 72. 611.
2.
Yamada, Takumi, Yoshimasa Murakami, Naoki Yoshida, et al.. (2007). Preferential Conduction Across the Ventricular Outflow Septum in Ventricular Arrhythmias Originating From the Aortic Sinus Cusp. Journal of the American College of Cardiology. 50(9). 884–891.
3.
Okada, Taro, Takumi Yamada, Yoshimasa Murakami, et al.. (2007). Prevalence and Severity of Left Atrial Edema Detected by Electron Beam Tomography Early After Pulmonary Vein Ablation. Journal of the American College of Cardiology. 49(13). 1436–1442.
4.
Yamada, Takumi, Yoshimasa Murakami, Naoki Yoshida, et al.. (2007). Efficacy of electroanatomic mapping in the catheter ablation of premature ventricular contractions originating from the right ventricular outflow tract. Journal of Interventional Cardiac Electrophysiology. 19(3). 187–194.
5.
Ninomiya, Yuichi, Takumi Yamada, Yoshimasa Murakami, et al.. (2006). PJ-612 Analysis of the Post Pacing Interval after Entrainment between Patients with Channel Dependent and Channel Independent Macroreentrant Atrial Tachycardias(Arrhythmia, diagnosis/pathophysiology/EPS-14 (A) PJ103,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 70. 641–642.
6.
Atarashi, Hirotsugu, Satoshi Ogawa, Kenichi Harumi, et al.. (2001). Three-year follow-up of patients with right bundle branch block and ST segment elevation in the right precordial leads. Journal of the American College of Cardiology. 37(7). 1916–1920.
7.
Lee, Won‐Ha, Akinori Kimura, Seung Woo Park, et al.. (2001). Different expressivity of a ventricular essential myosin light chain gene Ala57Gly mutation in familial hypertrophic cardiomyopathy. American Heart Journal. 141(2). 184–189.
8.
Kada, Kenji, Kenji Yasui, Keiji Naruse, et al.. (1999). Orientation Change of Cardiocytes Induced by Cyclic Stretch Stimulation: Time Dependency and Involvement of Protein Kinases. Journal of Molecular and Cellular Cardiology. 31(1). 247–259.
9.
Kamiya, Kaichiro, Weinong Guo, Kenji Yasui, & Junji Toyama. (1999). Hypoxia Inhibits the Changes in Action Potentials and Ion Channels during Primary Culture of Neonatal Rat Ventricular Myocytes. Journal of Molecular and Cellular Cardiology. 31(9). 1591–1598.
10.
Niwa, Ryoko, Haruo Honjo, Itsuo Kodama, Kazuyasu Maruyama, & Junji Toyama. (1998). Na+ channel blocking effects of cibenzoline on guinea-pig ventricular cells. European Journal of Pharmacology. 352(2-3). 317–327.
11.
Guo, Weinong, et al.. (1998). Cell Cycle-related Changes in the Voltage-gated Ca2+Currents in Cultured Newborn Rat Ventricular Myocytes. Journal of Molecular and Cellular Cardiology. 30(6). 1095–1103.
12.
Ozaki, Yukio, Fumimaro Takatsu, Munetaka Sugiishi, et al.. (1992). Long-term study of recurrent vasospastic angina using coronary angiograms during ergonovine provocation tests. American Heart Journal. 123(5). 1191–1198.
13.
Honjo, Haruo, Itsuo Kodama, Kaichiro Kamiya, & Junji Toyama. (1991). Block of cardiac sodium channels by amiodarone studied by using of action potential in single ventricular myocytes. British Journal of Pharmacology. 102(3). 651–656.
14.
Honjo, Haruo, Junji Toyama, Itsuo Kodama, et al.. (1989). Fluctuations of membrane potential in isolated single ventricular myocytes of guinea-pig upon resumption of oxidative phosphorylation. Journal of Molecular and Cellular Cardiology. 21(3). 241–252.
15.
Toyama, Junji, et al.. (1988). Diverse characteristics in potential waveform of his-purkinje system - Experimental and simulation studies.. Japanese Circulation Journal. 52(2). 188–196.
16.
Osaka, Toshiyuki, Naoya Tsuboi, Itsuo Kodama, Junji Toyama, & Kazuo Yamada. (1987). -P247- EFFECTS OF ACTIVATION SEQUENCES AND ANISOTROPIC CELLULAR GEOMETRY ON THE REPOLARIZATION PHASE OF ACTION POTENTIALS OF DOG VENTRICULAR MUSCLES. Japanese Circulation Journal-english Edition. 51(8). 963–964.
17.
Toyama, Junji, et al.. (1987). Effects of KW-3049, a newly developed calcium antagonist, on rabbit sinus nodes and guinea pig ventricular muscles.. Japanese Circulation Journal. 51(11). 1325–1334.
18.
Kubo, Kazuhiro, et al.. (1986). Electrophysiological effects of KW-3049, a novel dihydropyridine type Ca antagonist, on isolated rabbit hearts, sinus nodal tissues and guinea-pig ventricular muscles.. Folia Pharmacologica Japonica. 88(3). 179–187.
19.
Ohta, Toshiki, et al.. (1981). DISPERSION OF EFFECTIVE REFRACTORY PERIOD IN THE ISCHEMIC BORDER ZONE IN CANINE HEART : Arrhythmia : FREE COMMUNICATIONS (Abstract) : 45 Annual Scientific Meeting, Japanese Circulation Society. Japanese Circulation Journal-english Edition. 45(8). 905–906.
20.
Yamada, Kazuo, et al.. (1979). Antiarrhythmic effects of L-penbutolol and DL-propranolol. Comparison of the effects of these two drugs on conductivity and excitability in canine heart in vivo.. PubMed. 20(5). 603–11.
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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