Keiko Maruyama

1.2k total citations
74 papers, 888 citations indexed

About

Keiko Maruyama is a scholar working on Molecular Biology, Hematology and Physiology. According to data from OpenAlex, Keiko Maruyama has authored 74 papers receiving a total of 888 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Molecular Biology, 14 papers in Hematology and 12 papers in Physiology. Recurrent topics in Keiko Maruyama's work include Receptor Mechanisms and Signaling (15 papers), Blood Coagulation and Thrombosis Mechanisms (12 papers) and Coagulation, Bradykinin, Polyphosphates, and Angioedema (6 papers). Keiko Maruyama is often cited by papers focused on Receptor Mechanisms and Signaling (15 papers), Blood Coagulation and Thrombosis Mechanisms (12 papers) and Coagulation, Bradykinin, Polyphosphates, and Angioedema (6 papers). Keiko Maruyama collaborates with scholars based in Japan and United States. Keiko Maruyama's co-authors include Kazutoshi Nakamura, Shu‐ichi Ikeda, Tokuhiro Ishihara, Takafumi Nagatomo, N Yanagisawa, David Allsop, Hiroshi Tsuchihashi, Nobuo Yanagisawa, Eriko Morishita and Hidesaku Asakura and has published in prestigious journals such as Blood, PLoS ONE and Neurology.

In The Last Decade

Keiko Maruyama

71 papers receiving 856 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keiko Maruyama Japan 16 262 226 133 116 91 74 888
Alev Hasanoğlu Türkiye 21 243 0.9× 320 1.4× 38 0.3× 108 0.9× 111 1.2× 91 1.2k
Kunal Gupta United States 15 352 1.3× 101 0.4× 96 0.7× 70 0.6× 67 0.7× 36 1.1k
Xiuhua Wu China 18 347 1.3× 290 1.3× 47 0.4× 165 1.4× 48 0.5× 70 985
Colleen Azen United States 30 717 2.7× 647 2.9× 72 0.5× 70 0.6× 107 1.2× 78 2.4k
Michael Godes Germany 23 321 1.2× 274 1.2× 69 0.5× 96 0.8× 81 0.9× 45 1.5k
Martina Broecker‐Preuss Germany 24 321 1.2× 145 0.6× 39 0.3× 67 0.6× 52 0.6× 51 1.4k
D. Reinwein Germany 26 366 1.4× 215 1.0× 61 0.5× 186 1.6× 55 0.6× 157 2.5k
Heidi Peters Australia 25 754 2.9× 383 1.7× 39 0.3× 37 0.3× 129 1.4× 58 1.7k
José Rodrı́guez-Espinosa Spain 18 150 0.6× 161 0.7× 31 0.2× 115 1.0× 88 1.0× 55 1.2k
S.‐L. Karonen Finland 18 137 0.5× 245 1.1× 54 0.4× 75 0.6× 59 0.6× 36 1.1k

Countries citing papers authored by Keiko Maruyama

Since Specialization
Citations

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

Fields of papers citing papers by Keiko Maruyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiko Maruyama

This figure shows the co-authorship network connecting the top 25 collaborators of Keiko Maruyama. A scholar is included among the top collaborators of Keiko Maruyama 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 Keiko Maruyama. Keiko Maruyama 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.
Morishita, Eriko, Kenichi Ogiwara, Keiko Maruyama, et al.. (2024). A novel factor V compound heterozygous mutation associated with thrombosis (Y1961C; FV-Kanazawa, together with 1982_1983del). Journal of Thrombosis and Haemostasis. 22(10). 2810–2822.
2.
Maruyama, Keiko & Koichi Kokame. (2024). Development of an assay using a modified coagulation factor V to measure protein S activity. Journal of Thrombosis and Haemostasis. 22(12). 3510–3520.
3.
Maruyama, Keiko & Koichi Kokame. (2020). Carrier frequencies of antithrombin, protein C, and protein S deficiency variants estimated using a public database and expression experiments. Research and Practice in Thrombosis and Haemostasis. 5(1). 179–186. 4 indexed citations
4.
Maruyama, Keiko, Masashi Akiyama, Toshiyuki Miyata, & Koichi Kokame. (2018). Protein S K196E mutation reduces its cofactor activity for APC but not for TFPI. Research and Practice in Thrombosis and Haemostasis. 2(4). 751–756. 5 indexed citations
5.
Maruyama, Keiko, Eriko Morishita, Hidesaku Asakura, et al.. (2011). Plasma Levels of Platelet-Derived Microparticles in Patients with Obstructive Sleep Apnea Syndrome. Journal of Atherosclerosis and Thrombosis. 19(1). 98–104. 31 indexed citations
6.
Maruyama, Keiko, et al.. (2009). Effects of heme oxygenase-1 on tissue factor and thrombomodulin in the endothelial cell. Japanese Journal of Thrombosis and Hemostasis. 20(3). 315–322. 4 indexed citations
7.
Morishita, Eriko, Akiyoshi Takami, Keiko Maruyama, et al.. (2009). An elderly case of congenital prekallikrein deficiency. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 46(4). 348–351. 7 indexed citations
8.
Nashimoto, Mitsue, et al.. (2007). An approach to introducing music therapy to the elderly with dementia in small-scale, multi-functional facilities : Aiming to practice empowerment. 7(1). 38–42. 1 indexed citations
9.
Nakamura, Kazutoshi, Naoko Tsugawa, Toshiko Saito, et al.. (2007). Vitamin D status, bone mass, and bone metabolism in home-dwelling postmenopausal Japanese women: Yokogoshi Study. Bone. 42(2). 271–277. 88 indexed citations
10.
11.
Hosohata, Yoshiaki, et al.. (1995). Assessment of Partial Agonist Activity of Bopindolol and Its Two Metabolites (18–502 and 20–785) to β2‐Adrenoceptors in Tracheal Smooth Muscles of Guinea‐pigs. Pharmacy and Pharmacology Communications. 1(3). 131–132. 3 indexed citations
12.
Maruyama, Keiko, et al.. (1994). Comparison of Displacemental Potencies of Terazosin Enantiomers for .ALPHA.1-Adrenoceptor Subtypes.. Biological and Pharmaceutical Bulletin. 17(8). 1126–1129. 2 indexed citations
13.
Hayashi, Ryoichi, et al.. (1992). Myotonic and repetitive discharges in hypokalemic myopathy associated with glycyrrhizin-induced hypochloremia. Journal of the Neurological Sciences. 107(1). 74–77. 5 indexed citations
14.
Yamada, Kenji, et al.. (1992). Influence of Melatonin on Reproductive Behavior in Male Rats.. Chemical and Pharmaceutical Bulletin. 40(8). 2222–2223. 9 indexed citations
15.
Tokuda, Takahiko, et al.. (1992). Spinal cord vascular and leptomeningeal amyloid ?-protein deposition in a case with cerebral amyloid angiopathy. Acta Neuropathologica. 84(2). 207–210. 2 indexed citations
16.
Maruyama, Keiko, Fuyuki Kametani, Shu‐ichi Ikeda, Tokuhiro Ishihara, & Nobuo Yanagisawa. (1992). Characterization of amyloid fibril protein from a case of cerebral amyloid angiopathy showing immunohistochemical reactivity for both β protein and cystatin C. Neuroscience Letters. 144(1-2). 38–42. 32 indexed citations
17.
Tsuchihashi, Hiroshi, et al.. (1991). Comparison of .ALPHA.1-Adrenoceptors between Rat Brain and Spleen.. The Japanese Journal of Pharmacology. 56(4). 523–530. 11 indexed citations
18.
Maruyama, Keiko, et al.. (1991). Binding Characteristics of .ALPHA.1-Adrenoceptors in Bovine Prostate Using a Radioligand Binding Assay.. Journal of Pharmacobio-Dynamics. 14(6). 315–319. 1 indexed citations
19.
Maruyama, Keiko, et al.. (1989). [An Alzheimer's disease case showing recurrent subcortical hemorrhage: an autopsy findings with immunohistochemical studies of cerebral amyloid deposits].. PubMed. 29(7). 936–9. 1 indexed citations
20.
Maruyama, Keiko, et al.. (1987). Diagnostic value of abdominal fat tissue aspirate in familial amyloid polyneuropathy. Journal of the Neurological Sciences. 81(1). 11–18. 25 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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