Hikaru Okabe

5.2k total citations · 1 hit paper
111 papers, 4.3k citations indexed

About

Hikaru Okabe is a scholar working on Molecular Biology, Plant Science and Organic Chemistry. According to data from OpenAlex, Hikaru Okabe has authored 111 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 69 papers in Molecular Biology, 36 papers in Plant Science and 21 papers in Organic Chemistry. Recurrent topics in Hikaru Okabe's work include Natural product bioactivities and synthesis (47 papers), Phytochemistry and Biological Activities (22 papers) and Carbohydrate Chemistry and Synthesis (17 papers). Hikaru Okabe is often cited by papers focused on Natural product bioactivities and synthesis (47 papers), Phytochemistry and Biological Activities (22 papers) and Carbohydrate Chemistry and Synthesis (17 papers). Hikaru Okabe collaborates with scholars based in Japan, United States and Mexico. Hikaru Okabe's co-authors include Tsuneatsu Nagao, Kunihide Mihashi, Shuuji Hara, Tatsuo Yamauchi, Fumiko Abe, Junei Kinjo, Toshihiro Fujioka, Hisashi Matsunaga, Mitsuo Katano and Yoshiki Kashiwada and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Lipid Research and Journal of Chromatography A.

In The Last Decade

Hikaru Okabe

110 papers receiving 4.1k 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.

Gas-liquid chromatographic separation of aldose enantiomers as trimethylsilyl ethers of methyl 2-(polyhydroxyalkyl)-thiazolidine-4(R)-carboxylates.

1987 512 citations Hikaru Okabe et al. Chemical and Pharmaceutical Bulletin profile →

Peers

Hikaru Okabe

PHARM

Takao Konoshima Japan

Yumiko Kimura Japan

Tamotsu Nikaido Japan

Shi Yong Ryu South Korea

Toshiyuki Murakami Japan

Kazuhiro Ohtani Japan

Masatake Niwa Japan

Erdem Yeşilada Türkiye

Ming‐Hua Qiu China

Djaja D. Soejarto United States

Takao Konoshima Japan

Hikaru Okabe

2.5k ×1.0

1.4k ×0.9

774 ×1.4

533 ×1.1

PHARM

628 ×1.4

Citations per year, relative to Hikaru Okabe Hikaru Okabe (= 1×) peers Takao Konoshima

Countries citing papers authored by Hikaru Okabe

Since Specialization

Citations

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

Fields of papers citing papers by Hikaru Okabe

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hikaru Okabe

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

Okayama, Hideki, et al.. (2022). Caution is needed when evaluating coronary slit-like lesions with FFR-CT. Cardiovascular Intervention and Therapeutics. 37(4). 747–748. 1 indexed citations

Higaki, Akinori, Naoto Kawaguchi, Hikaru Okabe, et al.. (2022). Content-based image retrieval for the diagnosis of myocardial perfusion imaging using a deep convolutional autoencoder. Journal of Nuclear Cardiology. 30(2). 540–549. 4 indexed citations

Nakano, Daisuke, Kenji Ishitsuka, Ryota Tsuchihashi, et al.. (2016). Screening of promising chemotherapeutic candidates from plants against human adult T-cell leukemia/lymphoma (V): coumarins and alkaloids from Boenninghausenia japonica and Ruta graveolens. Journal of Natural Medicines. 71(1). 170–180. 12 indexed citations

Kinjo, Junei, Daisuke Nakano, Toshihiro Fujioka, & Hikaru Okabe. (2016). Screening of promising chemotherapeutic candidates from plants extracts. Journal of Natural Medicines. 70(3). 335–360. 26 indexed citations

Nakano, Daisuke, Kenji Ishitsuka, Ryota Tsuchihashi, et al.. (2015). Screening of promising chemotherapeutic candidates from plants against human adult T-cell leukemia/lymphoma (IV): phenanthroindolizidine alkaloids from Tylophora tanakae leaves. Journal of Natural Medicines. 69(3). 397–401. 12 indexed citations

Nakano, Daisuke, Kenji Ishitsuka, Ryota Tsuchihashi, et al.. (2013). Screening of promising chemotherapeutic candidates from plants against human adult T-cell leukemia/lymphoma (III). Journal of Natural Medicines. 67(4). 894–903. 22 indexed citations

Abe, Fumiko, et al.. (2005). Antibacterial activity of crude extracts from Mexican medicinal plants and purified coumarins and xanthones. Journal of Ethnopharmacology. 97(2). 293–299. 155 indexed citations

Kinjo, Junei, Ryota Tsuchihashi, Toshiharu Hirose, et al.. (2004). Examination for estrogenic activities of soyasaponin I and related compounds. 58(5). 193–197. 2 indexed citations

Tsuchihashi, Ryota, et al.. (2004). Soy Isoflavone Metabolites Isolated from Human Urine. 58(2). 71–75. 8 indexed citations

10.

Kinjo, Junei, Tsuneatsu Nagao, Masafumi Okawa, et al.. (2002). Antiproliferative Activity of Phenylpropanoid Ester Glycosides from Ligustrum purpurascens. Natural medicines = 生薬學雜誌. 56(4). 136–138.

11.

Kashiwada, Yoshiki, Yasumasa Ikeshiro, Tsuneatsu Nagao, et al.. (2001). 3,28-Di-O-(dimethylsuccinyl)-betulin isomers as anti-HIV agents1. Bioorganic & Medicinal Chemistry Letters. 11(2). 183–185. 41 indexed citations

12.

Kashiwada, Yoshiki, Tsuneatsu Nagao, Yasumasa Ikeshiro, et al.. (2000). Anti-AIDS Agents 38. Anti-HIV Activity of 3-O-Acyl Ursolic Acid Derivatives. Journal of Natural Products. 63(12). 1619–1622. 134 indexed citations

13.

Fujioka, Toshihiro, Hiroko Fujii, Hikaru Okabe, et al.. (1999). Antiproliferative Constituents from Umbelliferae Plants. V. A New Furanocoumarin and Falcarindiol Furanocoumarin Ethers from the Root of Angelica japonica.. Chemical and Pharmaceutical Bulletin. 47(1). 96–100. 135 indexed citations

14.

Castro, Vı́ctor, Gerardo Mora, Tsuneatsu Nagao, et al.. (1997). Structures and Antiproliferative Activity of Saponins from Sechium pittieri and S. talamancense.. Chemical and Pharmaceutical Bulletin. 45(2). 349–358. 15 indexed citations

15.

Wolfender, Jean‐Luc, et al.. (1995). Liquid chromatography combined with thermospray and continuous-flow fast atom bombardment mass spectrometry of glycosides in crude plant extracts. Journal of Chromatography A. 712(1). 155–168. 18 indexed citations

16.

Mori, Yosai, et al.. (1994). Steroidal Constituents from the Roots and Stems of Asclepias fruticosa.. Chemical and Pharmaceutical Bulletin. 42(9). 1777–1783. 37 indexed citations

17.

Nagao, Tsuneatsu, et al.. (1991). Studies on the constituents of Luffa acutangula Roxb. I. Structures of acutosides A-G, oleanane-type triterpene saponins isolated from the herb.. Chemical and Pharmaceutical Bulletin. 39(3). 599–606. 30 indexed citations

18.

Nagao, Tsuneatsu, et al.. (1989). Studies on the constituents of Aster tataricus L.f.II. Structures of aster saponins isolated from the root.. Chemical and Pharmaceutical Bulletin. 37(8). 1977–1983. 18 indexed citations

19.

Okabe, Hikaru, et al.. (1988). Studies on the constituents of Actinostemma lobatum MAXIM. III. Structures of actinostemmosides E and F, new baccharane-type triterpene glycosides isolated from the herb.. Chemical and Pharmaceutical Bulletin. 36(8). 2772–2777. 8 indexed citations

20.

Inokuchi, Jin‐ichi, M. Ohura, Hiroshi Shimeno, et al.. (1987). ANTIHYPERTENSIVE SUBSTANCE IN SEEDS OF ARECA CATECHU L.. Journal of Pharmacobio-Dynamics. 10(3). 8 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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