Toshihisa Sumii

2.6k total citations · 1 hit paper
12 papers, 2.2k citations indexed

About

Toshihisa Sumii is a scholar working on Epidemiology, Molecular Biology and Neurology. According to data from OpenAlex, Toshihisa Sumii has authored 12 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Epidemiology, 6 papers in Molecular Biology and 4 papers in Neurology. Recurrent topics in Toshihisa Sumii's work include Acute Ischemic Stroke Management (7 papers), S100 Proteins and Annexins (4 papers) and Cerebrovascular and Carotid Artery Diseases (4 papers). Toshihisa Sumii is often cited by papers focused on Acute Ischemic Stroke Management (7 papers), S100 Proteins and Annexins (4 papers) and Cerebrovascular and Carotid Artery Diseases (4 papers). Toshihisa Sumii collaborates with scholars based in United States, Japan and Netherlands. Toshihisa Sumii's co-authors include Eng H. Lo, Tatsuro Mori, Xiaoying Wang, Minoru Asahi, M. Elizabeth Fini, Jae‐Chang Jung, Michael A. Moskowitz, Aneesh B. Singhal, Toshiaki Aoki and Shigeyoshi Itohara and has published in prestigious journals such as Journal of Neuroscience, Stroke and Journal of Cerebral Blood Flow & Metabolism.

In The Last Decade

Toshihisa Sumii

12 papers receiving 2.2k 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.

Effects of Matrix Metalloproteinase-9 Gene Knock-Out on the Proteolysis of Blood–Brain Barrier and White Matter Components after Cerebral Ischemia

2001 855 citations Minoru Asahi, Xiaoying Wang et al. Journal of Neuroscience profile →

Peers

Countries citing papers authored by Toshihisa Sumii

Since Specialization

Citations

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

Fields of papers citing papers by Toshihisa Sumii

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshihisa Sumii

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

All Works

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12 of 12 papers shown

#	Work	Indexed citations
1	Cervical myelopathy caused by dropped head syndrome 2007 ·Journal of Neurosurgery Spine ·(unknown), Mamoru Taneda, Toshihisa Sumii, (unknown), (unknown)	27
2	Infarct Prediction and Treatment Assessment with MRI-based Algorithms in Experimental Stroke Models 2006 ·Journal of Cerebral Blood Flow & Metabolism ·Ona Wu, Toshihisa Sumii, Minoru Asahi, Masao Sasamata, Leif Østergaard, Bruce R. Rosen, Eng H. Lo, Rick M. Dijkhuizen	44
3	Protective Effects of Statins Involving Both eNOS and tPA in Focal Cerebral Ischemia 2005 ·Journal of Cerebral Blood Flow & Metabolism ·Minoru Asahi, Zhihong Huang, Sunu S. Thomas, Shinichi Yoshimura, Toshihisa Sumii, Tatsuro Mori, Jianhua Qiu, Sepideh Amin‐Hanjani, Paul L. Huang, James K. Liao, Eng H. Lo, Michael A. Moskowitz	121
4	Antiactin-Targeted Immunoliposomes Ameliorate Tissue Plasminogen Activator-Induced Hemorrhage after Focal Embolic Stroke 2003 ·Journal of Cerebral Blood Flow & Metabolism ·Minoru Asahi, Ram Rammohan, Toshihisa Sumii, Xiaoying Wang, Robert J. Pauw, Volkmar Weissig, Vladimir P. Torchilin, Eng H. Lo	31
5	Mitogen-Activated Protein Kinase Inhibition in Traumatic Brain Injury: In Vitro and In Vivo Effects 2002 ·Journal of Cerebral Blood Flow & Metabolism ·Tatsuro Mori, Xiaoying Wang, Jae‐Chang Jung, Toshihisa Sumii, Aneesh B. Singhal, M. Elizabeth Fini, C. Edward Dixon, Alessandro Alessandrini, Eng H. Lo	150
6	Blood-Brain Barrier Disruption and Matrix Metalloproteinase-9 Expression During Reperfusion Injury 2002 ·Stroke ·Toshiaki Aoki, Toshihisa Sumii, Tatsuro Mori, Xiaoying Wang, Eng H. Lo	179
7	Involvement of Matrix Metalloproteinase in Thrombolysis-Associated Hemorrhagic Transformation After Embolic Focal Ischemia in Rats 2002 ·Stroke ·Toshihisa Sumii, Eng H. Lo	348
8	Effects of Normobaric Hyperoxia in a Rat Model of Focal Cerebral Ischemia—Reperfusion 2002 ·Journal of Cerebral Blood Flow & Metabolism ·Aneesh B. Singhal, Xiaoying Wang, Toshihisa Sumii, Tatsuro Mori, Eng H. Lo	146
9	Hemoglobin-Induced Cytotoxicity in Rat Cerebral Cortical Neurons 2002 ·Stroke ·Xiaoying Wang, Tatsuro Mori, Toshihisa Sumii, Eng H. Lo	173
10	Matrix metalloproteinase 2 gene knockout has no effect on acute brain injury after focal ischemia 2001 ·Neuroreport ·Minoru Asahi, Toshihisa Sumii, M. Elizabeth Fini, Shigeyoshi Itohara, Eng H. Lo	144
11	Protective effects of pamiteplase, a modified t-PA, in a rat model of embolic stroke 2001 ·Neuroreport ·Toshihisa Sumii, Aneesh B. Singhal, Minoru Asahi, Masao Shimizu‐Sasamata, Masanori Suzuki, Keiji Miyata, Eng H. Lo	6
12	Effects of Matrix Metalloproteinase-9 Gene Knock-Out on the Proteolysis of Blood–Brain Barrier and White Matter Components after Cerebral Ischemia breakdown → 2001 ·Journal of Neuroscience ·Minoru Asahi, Xiaoying Wang, Tatsuro Mori, Toshihisa Sumii, Jae‐Chang Jung, Michael A. Moskowitz, M. Elizabeth Fini, Eng H. Lo	855

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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