Hiroki Okada

538 total citations
36 papers, 417 citations indexed

About

Hiroki Okada is a scholar working on Surgery, Urology and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Hiroki Okada has authored 36 papers receiving a total of 417 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Surgery, 11 papers in Urology and 10 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Hiroki Okada's work include Urinary Bladder and Prostate Research (11 papers), Cardiovascular Health and Disease Prevention (7 papers) and Blood Pressure and Hypertension Studies (6 papers). Hiroki Okada is often cited by papers focused on Urinary Bladder and Prostate Research (11 papers), Cardiovascular Health and Disease Prevention (7 papers) and Blood Pressure and Hypertension Studies (6 papers). Hiroki Okada collaborates with scholars based in Japan and United States. Hiroki Okada's co-authors include Mitsuomi Hirashima, Kiyoshi Sakamoto, Hisashi Masugata, Fuminori Goda, Shoichi Senda, Noritoshi Sekido, Michio Inukai, Naohisa Hosomi, Takashi Himoto and Koji Murao and has published in prestigious journals such as Pain, The Journal of Urology and American Journal of Roentgenology.

In The Last Decade

Hiroki Okada

34 papers receiving 404 citations

Peers

Hiroki Okada
Belgi̇n Efe Türkiye
Jean Charles Crave France
J Descotes France
Jennifer Hall United States
Cevad Şekuri Türkiye
Ante Punda Croatia
Shyh-Chyan Chen Taiwan
Ignazio Massimo Civello Italy
Sema Uçak Türkiye
Kathleen Chin United States
Belgi̇n Efe Türkiye
Hiroki Okada
Citations per year, relative to Hiroki Okada Hiroki Okada (= 1×) peers Belgi̇n Efe

Countries citing papers authored by Hiroki Okada

Since Specialization
Citations

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

Fields of papers citing papers by Hiroki Okada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroki Okada

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroki Okada. A scholar is included among the top collaborators of Hiroki Okada 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 Hiroki Okada. Hiroki Okada 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
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Takaoka, Eiichiro, Takahisa Suzuki, Nobutaka Shimizu, et al.. (2020). Urethral dysfunction and therapeutic effects of a PDE 5 inhibitor (tadalafil) in a rat model of detrusor underactivity induced by pelvic nerve crush injury. Neurourology and Urodynamics. 39(3). 916–925. 2 indexed citations
3.
Takaoka, Eiichiro, Hiroki Okada, Shun Takai, et al.. (2018). Effect of TRPV4 activation in a rat model of detrusor underactivity induced by bilateral pelvic nerve crush injury. Neurourology and Urodynamics. 37(8). 2527–2534. 21 indexed citations
4.
Yoshizawa, Tsuyoshi, Hiroki Okada, Satoru Yoshikawa, Satoru Takahashi, & Naoki Yoshimura. (2014). Suppression of neurogenic detrusor overactivity by glycine transporter type 2 (GlyT2) inhibitor in rats with spinal cord injury. Neurourology and Urodynamics. 2 indexed citations
5.
Sekido, Noritoshi, et al.. (2014). Effects of α1 Antagonist and Cholinesterase Inhibitor on Cystometric Parameters in Lumbar Canal Stenosis Rats With Underactive Bladder. Urology. 84(5). 1248.e9–1248.e15. 9 indexed citations
6.
Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2014). Analysis of association between brain natriuretic peptide levels and blood pressure variability. Experimental and Therapeutic Medicine. 8(1). 21–24. 5 indexed citations
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Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2013). Clinical significance of differences between home and clinic systolic blood pressure readings in patients with hypertension. Journal of International Medical Research. 41(4). 1272–1280. 2 indexed citations
9.
Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2013). Association between left ventricular hypertrophy and changes in arterial stiffness during hypertensive treatment. Clinical and Experimental Hypertension. 36(4). 258–262. 8 indexed citations
10.
Sekido, Noritoshi, et al.. (2012). A novel animal model of underactive bladder: Analysis of lower urinary tract function in a rat lumbar canal stenosis model. Neurourology and Urodynamics. 31(7). 1190–1196. 34 indexed citations
11.
Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2012). Association between Oxidative Stress Assessed by Urinary 8-Hydroxydeoxyguanosine and the Cardiac Function in Hypertensive Patients without Overt Heart Disease. Clinical and Experimental Hypertension. 35(5). 308–312. 6 indexed citations
12.
Masugata, Hisashi, Shoichi Senda, Hiroki Okada, et al.. (2011). Association between arterial stiffness and pulmonary function in hypertensive patients. Hypertension Research. 35(4). 388–392. 10 indexed citations
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Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2011). Correlation of Arterial Stiffness to Left Ventricular Function in Patients with Reduced Ejection Fraction. The Tohoku Journal of Experimental Medicine. 225(3). 145–151. 11 indexed citations
15.
Masugata, Hisashi, Shoichi Senda, Michio Inukai, et al.. (2011). Association of Cardio-Ankle Vascular Index with Brain Natriuretic Peptide Levels in Hypertension. Journal of Atherosclerosis and Thrombosis. 19(3). 255–262. 22 indexed citations
16.
Kimura, Toshiaki, Shoichi Senda, Hisashi Masugata, et al.. (2010). Seasonal Blood Pressure Variation and Its Relationship to Environmental Temperature in Healthy Elderly Japanese Studied by Home Measurements. Clinical and Experimental Hypertension. 32(1). 8–12. 46 indexed citations
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Shimizu, Keiko, Yasuhiro Yamasaki, Hiroki Okada, et al.. (2007). Effect of Low-Dose Theophylline on Airway Resistance, Respiratory Muscle Strength, and High-Sensitivity C-reactive Protein in Patients with Chronic Obstructive Pulmonary Disease. Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences). 33(2). 141–144. 2 indexed citations
19.
Okada, Hiroki, Motoko Honda, & Hideki Ono. (2001). Method for Recording Spinal Reflexes in Mice: Effects of Thyrotropin-Releasing Hormone, DOI, Tolperisone and Baclofen on Monosynaptic Spinal Reflex Potentials. The Japanese Journal of Pharmacology. 86(1). 134–136. 8 indexed citations
20.
Hirashima, Mitsuomi, et al.. (1998). The ratio of neutrophils to lymphocytes and the phenotypes of neutrophils in patients with early gastric cancer. Journal of Cancer Research and Clinical Oncology. 124(6). 329–334. 82 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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