Ryuichi Kitamura

410 total citations
17 papers, 344 citations indexed

About

Ryuichi Kitamura is a scholar working on Molecular Biology, Spectroscopy and Organic Chemistry. According to data from OpenAlex, Ryuichi Kitamura has authored 17 papers receiving a total of 344 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Molecular Biology, 5 papers in Spectroscopy and 4 papers in Organic Chemistry. Recurrent topics in Ryuichi Kitamura's work include Analytical Chemistry and Chromatography (3 papers), Pharmacogenetics and Drug Metabolism (3 papers) and Oxidative Organic Chemistry Reactions (2 papers). Ryuichi Kitamura is often cited by papers focused on Analytical Chemistry and Chromatography (3 papers), Pharmacogenetics and Drug Metabolism (3 papers) and Oxidative Organic Chemistry Reactions (2 papers). Ryuichi Kitamura collaborates with scholars based in Japan and United States. Ryuichi Kitamura's co-authors include Eiji Matsushima, Kozo Yoshida, Ken‐Ichiro Yoshida, Motoichi Miyazaki, Kazuichi Hayakawa, Kazuaki Matsuoka, Noriko Imaizumi, Masaki Otagiri, Sekio Nagayama and Yasuro KAWAGUCHI and has published in prestigious journals such as Journal of Clinical Oncology, The Journal of Clinical Endocrinology & Metabolism and Diabetes.

In The Last Decade

Ryuichi Kitamura

17 papers receiving 337 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuichi Kitamura Japan 9 122 118 75 54 51 17 344
Hijiri Takeuchi Japan 12 96 0.8× 184 1.6× 36 0.5× 86 1.6× 14 0.3× 31 389
Nabeel F. Adham United States 16 112 0.9× 105 0.9× 162 2.2× 40 0.7× 51 1.0× 33 580
Chao Yan China 10 93 0.8× 162 1.4× 159 2.1× 128 2.4× 59 1.2× 42 574
Mary F. Kanz United States 12 101 0.8× 111 0.9× 53 0.7× 34 0.6× 30 0.6× 29 454
Hansjürgen Piechota Germany 6 277 2.3× 169 1.4× 47 0.6× 67 1.2× 22 0.4× 14 565
Barbara A. Elswick United States 10 123 1.0× 164 1.4× 112 1.5× 16 0.3× 108 2.1× 14 647
Reto Cortesi Switzerland 6 253 2.1× 208 1.8× 36 0.5× 54 1.0× 12 0.2× 7 583
H.-U. Schulz Germany 11 99 0.8× 160 1.4× 200 2.7× 47 0.9× 8 0.2× 18 489
Peter Grešner Poland 15 66 0.5× 222 1.9× 54 0.7× 49 0.9× 65 1.3× 25 558
Jeffrey A. Schneider United States 13 90 0.7× 196 1.7× 38 0.5× 74 1.4× 84 1.6× 16 512

Countries citing papers authored by Ryuichi Kitamura

Since Specialization
Citations

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

Fields of papers citing papers by Ryuichi Kitamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuichi Kitamura

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

All Works

17 of 17 papers shown
1.
Kitamura, Ryuichi, et al.. (2016). The Gene of Aspergillus oryzae Involved in Degradation of Formaldehyde and Formaldehyde Degradation in Vapour Phase by Porous Enzyme/Chitosan Nanofibre Composites. Journal of environmental polymer degradation. 25(4). 1273–1279. 5 indexed citations
2.
Kitamura, Ryuichi, et al.. (2015). Degradation of formaldehyde by <i>Aspergillus oryzae</i>. Japanese Journal of Water Treatment Biology. 51(3). 69–73. 2 indexed citations
3.
Yamaguchi, Kensei, Wasaburo Koizumi, Hisashi Hosaka, et al.. (2013). Randomized phase II study of S-1/CDDP plus TSU-68 versus S-1/CDDP in patients with advanced gastric cancer.. Journal of Clinical Oncology. 31(4_suppl). 72–72. 2 indexed citations
4.
Okamoto, Isamu, Hiroshige Yoshioka, Koji Takeda, et al.. (2011). Phase I Clinical Study of the Angiogenesis Inhibitor TSU-68 Combined with Carboplatin and Paclitaxel in Chemotherapy-Naive Patients with Advanced Non-small Cell Lung Cancer. Journal of Thoracic Oncology. 7(2). 427–433. 11 indexed citations
5.
6.
7.
Kitamura, Ryuichi, Kazuaki Matsuoka, Sekio Nagayama, & Masaki Otagiri. (2008). Time-dependent Induction of Rat Hepatic CYP1A1 and CYP1A2 Expression after Single-dose Administration of the Anti-angiogenic Agent TSU-68. Drug Metabolism and Pharmacokinetics. 23(6). 421–427. 8 indexed citations
8.
Kitamura, Ryuichi, Yoshio Yamamoto, Sekio Nagayama, & Masaki Otagiri. (2007). Decrease in Plasma Concentrations of Antiangiogenic Agent TSU-68 ((Z)-5-[(1,2-Dihydro-2-oxo-3H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrole-3-propanoic acid) during Oral Administration Twice a Day to Rats. Drug Metabolism and Disposition. 35(9). 1611–1616. 11 indexed citations
9.
Kayali, Ayse G., Luis Flores, Ana D. Lopez, et al.. (2007). Limited Capacity of Human Adult Islets Expanded In Vitro to Redifferentiate Into Insulin-Producing β-Cells. Diabetes. 56(3). 703–708. 57 indexed citations
10.
Matsuoka, Kazuaki, Ryuichi Kitamura, Eiji Matsushima, & Yasuro KAWAGUCHI. (2003). Determination of 3′-C-ethynylcytidine in human plasma and urine by liquid chromatographic-electrospray ionization tandem mass spectrometry. Journal of Pharmaceutical and Biomedical Analysis. 31(1). 47–55. 4 indexed citations
11.
Nagase, Terumasa, Takehiko Murakami, Toshihiko Tsukada, et al.. (2002). A Family of Autosomal Dominant Hypocalcemia with a Positive Correlation between Serum Calcium and Magnesium: Identification of a Novel Gain of Function Mutation (Ser820Phe) in the Calcium-Sensing Receptor. The Journal of Clinical Endocrinology & Metabolism. 87(6). 2681–2687. 15 indexed citations
12.
Ono, Katsuhiro, Takuhiko Akatsu, Takehiko Murakami, et al.. (2002). Involvement of Cyclo-Oxygenase-2 in Osteoclast Formation and Bone Destruction in Bone Metastasis of Mammary Carcinoma Cell Lines. Journal of Bone and Mineral Research. 17(5). 774–781. 56 indexed citations
13.
Kitamura, Ryuichi, Kazuaki Matsuoka, Eiji Matsushima, & Yasuro KAWAGUCHI. (2001). Improvement in precision of the liquid chromatographic–electrospray ionization tandem mass spectrometric analysis of 3′-C-ethynylcytidine in rat plasma. Journal of Chromatography B Biomedical Sciences and Applications. 754(1). 113–119. 22 indexed citations
14.
Matsushima, Eiji, Kozo Yoshida, Ryuichi Kitamura, & Ken‐Ichiro Yoshida. (1997). Determination of S-1 (combined drug of tegafur, 5-chloro-2,4- dihydroxypyridine and potassium oxonate and 5-fluorouracil in human plasma and urine using high-performance liquid chromatography and gas chromatography-negative ion chemical ionization mass spectrometry. Journal of Chromatography B Biomedical Sciences and Applications. 691(1). 95–104. 83 indexed citations
15.
Kitamura, Ryuichi, et al.. (1997). Determination of a new podophyllotoxin derivative, TOP-53, and its metabolite in rat plasma and urine by high-performance liquid chromatography with electrochemical detection. Journal of Chromatography B Biomedical Sciences and Applications. 690(1-2). 283–288. 7 indexed citations
16.
Hayakawa, Kazuichi, et al.. (1991). Determination of Diamino- and Aminopyrenes by High Performance Liquid Chromatography with Chemiluminescence Detection. Analytical Sciences. 7(4). 573–577. 47 indexed citations
17.

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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