Keisuke Toyama

9.0k total citations · 1 hit paper
157 papers, 6.8k citations indexed

About

Keisuke Toyama is a scholar working on Hematology, Molecular Biology and Genetics. According to data from OpenAlex, Keisuke Toyama has authored 157 papers receiving a total of 6.8k indexed citations (citations by other indexed papers that have themselves been cited), including 86 papers in Hematology, 33 papers in Molecular Biology and 32 papers in Genetics. Recurrent topics in Keisuke Toyama's work include Acute Myeloid Leukemia Research (62 papers), Chronic Myeloid Leukemia Treatments (26 papers) and Chronic Lymphocytic Leukemia Research (19 papers). Keisuke Toyama is often cited by papers focused on Acute Myeloid Leukemia Research (62 papers), Chronic Myeloid Leukemia Treatments (26 papers) and Chronic Lymphocytic Leukemia Research (19 papers). Keisuke Toyama collaborates with scholars based in Japan, United States and United Kingdom. Keisuke Toyama's co-authors include Kazuma Ohyashiki, David Oscier, Christopher Cox, John M. Bennett, Michelle M. LeBeau, Carlo Aul, Guillermo Sanz, Teresa Vallespı́, Pierre Fenaux and Pierre Morel and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Nature Genetics.

In The Last Decade

Keisuke Toyama

149 papers receiving 6.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

International Scoring System for Evaluating Prognosis in Myelodysplastic Syndromes

1997 3.2k citations Kazuma Ohyashiki, Keisuke Toyama et al. profile →

Peers

Countries citing papers authored by Keisuke Toyama

Since Specialization

Citations

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

Fields of papers citing papers by Keisuke Toyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keisuke Toyama

This figure shows the co-authorship network connecting the top 25 collaborators of Keisuke Toyama. A scholar is included among the top collaborators of Keisuke 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 Keisuke Toyama. Keisuke Toyama 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

#	Title	Journal	Authors	Indexed citations
1	Bone marrow stroma from refractory anemia of myelodysplastic syndrome is defective in its ability to support normal CD34-positive cell proliferation and differentiation in vitro	Leukemia Research	Shin Aizawa, Masaru Nakano et al.	81
2	Simultaneous continuous ¹³C, ¹²C analysis of expired gas in the ¹³C breath test	Respirology	Fumihiro Yamasawa, Isao Nishi et al.	3
3	Telomeric length and telomerase activity vary with age in peripheral blood cells obtained from normal individuals	Human Genetics	Hiroshi Iwama, Kazuma Ohyashiki et al.	215
4	Analysis of Serum Granulocyte-Colony Stimulating Factor(G-CSF) and G-CSF Production in Lung Cancer with Leukocytosis.	Haigan	Keisuke Toyama et al.	5
5	Multiple pulmonary nodules in association with pyoderma gangrenosum	Respiratory Medicine	Ikuma Kasuga, N Yanagisawa et al.	28
6	Twenty-eight Years Old Small Cell Lung Cancer Case with Spinal Cord Metastasis Diagnosed Premotum.	Haigan	Ikuma Kasuga, Yasushi Torii et al.	0
7	Treatment of the anemia of aplastic anemia patients with recombinant human erythropoietin in combination with granulocyte colony ‐ stimulating factor: a multicenter randomized controlled study	European Journal Of Haematology	Masami Bessho, Kunitake Hirashima et al.	30
8	Inhibitory effect of a nucleoside analog, acyclovir, on leukemia cells	Leukemia Research	J Nishimaki, Keisuke Miyazawa et al.	3
9	Telomere shortening in leukemic cells is related to their genetic alterations but not replicative capability	Cancer Genetics and Cytogenetics	Kazuma Ohyashiki, Junko H. Ohyashiki et al.	25
10	[Immunocompetent cells in lymph nodes of B-cell lymphomas].	PubMed	Y Kawanishi, Osamu Iwase et al.	1
11	Therapy for Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia: Possible Use of Interferon on the Basis of Some Novel Concepts	Leukemia & lymphoma	Kazuma Ohyashiki, Junko H. Ohyashiki et al.	1
12	Establishment of a new Hodgkin's cell line (HD-70) of B-cell origin	Cancer	Ichiro Kubonishi, Taisuke Eguchi et al.	13
13	Changes in plasma levels of t-PA, PAI-1 AND t-PA-PAI-1 complex in patients with cerebrovascular thrombosis infused with t-PA	Thrombosis Research	Akikazu Takada, Yumiko Takada et al.	4
14	Cytogenetic findings in adult acute leukemia and myeloproliferative disorders with an involvement of megakaryocyte lineage	Cancer	Kazuma Ohyashiki, Junko H. Ohyashiki et al.	21
15	Philadelphia Chromosome‐positive Chronic Myelogenous Leukemia with Deleted Fusion of BCR and ABL Genes	Japanese Journal of Cancer Research	Kazuma Ohyashiki, Junko H. Ohyashiki et al.	2
16	Myelodysplastic syndrome with trisomy 11 associated with polycythemia vera	American Journal of Hematology	K Ohyashiki, Junko H. Ohyashiki et al.	9
17	MORPHOLOGIC CHANGES OF NEUTROPHILS IN MYELODYSPLASTIC SYNDROME TREATED WITH RECOMBINANT HUMAN GRANULOCYTE COLONY‐STIMULATING FACTOR	Japanese Journal of Cancer Research	Keisuke Toyama, Kazuma Ohyashiki et al.	7
18	Structural and functional design of visual system.		Keisuke Toyama	0
19	[A case of chronic neutrophilic leukemia (author's transl)].	Munich Personal RePEc Archive (Ludwig Maximilian University of Munich)	Ichiro Aoki, Keisuke Toyama et al.	1
20	IgA-K type Monoclonal Gammopathy secondary to Primary Hepatoma	Kanzo	Hidesaku Asakura, Keisuke Toyama et al.	1

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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