Keiichi Shimamura

932 total citations
81 papers, 792 citations indexed

About

Keiichi Shimamura is a scholar working on Physiology, Cellular and Molecular Neuroscience and Biochemistry. According to data from OpenAlex, Keiichi Shimamura has authored 81 papers receiving a total of 792 indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Physiology, 19 papers in Cellular and Molecular Neuroscience and 19 papers in Biochemistry. Recurrent topics in Keiichi Shimamura's work include Nitric Oxide and Endothelin Effects (30 papers), Eicosanoids and Hypertension Pharmacology (18 papers) and Neuroscience and Neuropharmacology Research (11 papers). Keiichi Shimamura is often cited by papers focused on Nitric Oxide and Endothelin Effects (30 papers), Eicosanoids and Hypertension Pharmacology (18 papers) and Neuroscience and Neuropharmacology Research (11 papers). Keiichi Shimamura collaborates with scholars based in Japan, United States and France. Keiichi Shimamura's co-authors include Satoru Sunano, Fumiko Sekiguchi, Hiroko Togashi, Nicholas Sperelakis, Tomoko Shimada, Yoshiki Yanagawa, Yoshihito Inoue, Machiko Matsumoto, Yasuhiro Saito and Ryoichi Sakuta and has published in prestigious journals such as PLoS ONE, British Journal of Pharmacology and Neuropsychologia.

In The Last Decade

Keiichi Shimamura

80 papers receiving 774 citations

Peers

Keiichi Shimamura

PHYSI

CMN

CCM

R. Giuliano United States

I J Kopin United States

Suzanne Killinger Australia

Judith A. Kiritsy‐Roy United States

Faruk Erden Türkiye

Cláudia Maria Padovan Brazil

T. Hedner Sweden

Harold H. Smookler United States

Fang‐Jung Wan Taiwan

Lawrence Isaac United States

R. Giuliano United States

Keiichi Shimamura

153 ×0.5

PHYSI

482 ×2.3

532 ×2.9

CMN

189 ×1.0

CCM

108 ×0.8

Citations per year, relative to Keiichi Shimamura Keiichi Shimamura (= 1×) peers R. Giuliano

Countries citing papers authored by Keiichi Shimamura

Since Specialization

Citations

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

Fields of papers citing papers by Keiichi Shimamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiichi Shimamura

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

Ikeda, Takahiro, Yukifumi Monden, Takeshi Inoue, et al.. (2018). Methylphenidate-Elicited Distinct Neuropharmacological Activation Patterns Between Medication-Naive Attention Deficit Hyperactivity Disorder Children With and Without Comorbid Autism Spectrum Disorder: A Functional Near- Infrared Spectroscopy Study. Neuropsychiatry. 8(3). 7 indexed citations

Matsumoto, Machiko, Yasuhiro Saito, Yoshiki Yanagawa, et al.. (2014). Metaplastic Regulation of the Median Raphe Nucleus via Serotonin 5-HT1A Receptor on Hippocampal Synaptic Plasticity Is Associated With Gender-Specific Emotional Expression in Rats. Journal of Pharmacological Sciences. 124(3). 394–407. 15 indexed citations

Yanagawa, Yoshiki, et al.. (2014). Enhanced transglutaminase 2 expression in response to stress-related catecholamines in macrophages. Immunobiology. 219(9). 680–686. 6 indexed citations

Ichikawa, Hiroko, Jun Kitazono, Kenji Nagata, et al.. (2014). Novel method to classify hemodynamic response obtained using multi-channel fNIRS measurements into two groups: exploring the combinations of channels. Frontiers in Human Neuroscience. 8. 480–480. 35 indexed citations

Ichikawa, Hiroko, Emi Nakato, So Kanazawa, et al.. (2014). Hemodynamic response of children with attention-deficit and hyperactive disorder (ADHD) to emotional facial expressions. Neuropsychologia. 63. 51–58. 39 indexed citations

Oda, Koji, Yoshikazu Goto, Yoshiki Yanagawa, et al.. (2013). Subanalgesic ketamine enhances morphine-induced antinociceptive activity without cortical dysfunction in rats. Journal of Anesthesia. 28(3). 390–398. 14 indexed citations

Matsumoto, Machiko, et al.. (2013). Synaptic Modulation via Basolateral Amygdala on the Rat Hippocampus–Medial Prefrontal Cortex Pathway in Fear Extinction. Journal of Pharmacological Sciences. 123(3). 267–278. 11 indexed citations

Shimamura, Keiichi, et al.. (2006). Salivary chromogranin-A as a marker of psychological stress during a cognitive test battery in humans. Stress. 9(3). 127–131. 51 indexed citations

Sekiguchi, Fumiko, et al.. (2003). Reduced effect of caffeine on twitch contraction of oesophageal striated muscle from stroke‐prone spontaneously hypertensive rats. Clinical and Experimental Pharmacology and Physiology. 30(4). 223–231. 3 indexed citations

10.

Yamamoto, Kazuo, Keiichi Shimamura, Fumiko Sekiguchi, & Satoru Sunano. (2001). EFFECTS OF N^G-NITRO-L-ARGININE ON THE BLOOD PRESSURE OF SPONTANEOUSLY HYPERTENSIVE RATS WITH DIFFERENT DEGREES OF HYPERTENSION. Clinical and Experimental Hypertension. 23(7). 533–544. 6 indexed citations

11.

Shimamura, Keiichi, et al.. (2000). Role of nitric oxide in the contraction of circular muscle in the rat portal vein. Pflügers Archiv - European Journal of Physiology. 440(3). 435–439. 3 indexed citations

12.

Shimamura, Keiichi, Fumiko Sekiguchi, & Satoru Sunano. (1999). TENSION OSCILLATION IN ARTERIES AND ITS ABNORMALITY IN HYPERTENSIVE ANIMALS. Clinical and Experimental Pharmacology and Physiology. 26(4). 275–284. 28 indexed citations

13.

Sekiguchi, Fumiko, et al.. (1999). Effects of cyclopiazonic acid on contraction and intracellular Ca²⁺ in oesophageal striated muscle of normotensive and spontaneously hypertensive rats. British Journal of Pharmacology. 128(5). 961–968. 12 indexed citations

14.

Sunano, Satoru, et al.. (1996). Endothelium-Dependent Relaxation by α2-Adrenoceptor Agonists in Spontaneously Hypertensive Rat Aorta. Journal of Cardiovascular Pharmacology. 27(5). 733–739. 27 indexed citations

15.

Koike, Yuichi, et al.. (1996). MONITORING OF PROCAINAMIDE AND N-ACETYLPROCAINAMIDE CONCENTRATION IN SALIVA AFTER ORAL ADMINISTRATION OF PROCAINAMIDE. American Journal of Therapeutics. 3(10). 708–714. 1 indexed citations

16.

Shimamura, Keiichi, et al.. (1994). Oxytocin induces an inward current in pregnant rat myometrial cells. Canadian Journal of Physiology and Pharmacology. 72(7). 759–763. 11 indexed citations

17.

Sunano, Satoru, et al.. (1992). Effects of Chronic Treatment with SQ29852 on Spontaneous Smooth Muscle Tone and Endothelium-Dependent Relaxation in Aorta of Stroke-Prone Spontaneously Hypertensive Rats. Journal of Cardiovascular Pharmacology. 19(4). 602–609. 22 indexed citations

18.

Sunano, Satoru, et al.. (1988). Extra- and intracellular calcium in vanadate-induced contraction of vascular smooth muscle. Heart and Vessels. 4(1). 6–13. 6 indexed citations

19.

Shimamura, Keiichi, et al.. (1987). Noradrenaline Content and Release in the Mesenteric Artery of Stroke-Prone Spontaneously Hypertensive Rats (SHRSP) and a New Strain of SHRSP (M-SHRSP). Journal of Vascular Research. 24(6). 334–338. 2 indexed citations

20.

Shimamura, Keiichi. (1979). Pharmacokinetics of Procainamide in Japanese Subjects. Rinsho yakuri/Japanese Journal of Clinical Pharmacology and Therapeutics. 10(2). 185–191. 1 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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