World's Best Scientists 2026 revealed!
Osamu Muraoka

Osamu Muraoka

D-Index & Metrics

Chemistry

D-Index
43
Citations
7587
World Ranking
17150
National Ranking
1353

Osamu Muraoka publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Osamu Muraoka sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 322 publications — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Osamu Muraoka D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Osamu Muraoka sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 43 D-Index — 5th percentile

5% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Osamu Muraoka is affiliated with Kindai University in Japan, contributing research primarily in the fields of Biochemistry, Genetics and Molecular Biology, Medicine, and Chemistry. Their scholarly work encompasses molecular biology, organic chemistry, plant science, endocrinology, diabetes and metabolism, and biochemistry.

Their research focuses on several specialized topics including carbohydrate chemistry and synthesis, phytochemical compounds biological activities, natural antidiabetic agents studies, plant-derived lignans synthesis and bioactivity, traditional and medicinal uses of Annonaceae, Pneumocystis jirovecii pneumonia detection and treatment, and natural product bioactivities and synthesis.

Muraoka has published extensively, with notable research appearing in the following venues:

  • Journal of Natural Medicines (4 publications)
  • ChemMedChem (3 publications)
  • Fitoterapia (2 publications)
  • International Journal of Molecular Sciences (2 publications)
  • RSC Advances (2 publications)

Frequent collaborators include Toshio Morikawa, Genzoh Tanabe, Weijia Xie, Kiyofumi Ninomiya, and Masayuki Yoshikawa.

Selected recent papers authored or co-authored by Muraoka include:

  • A review of antidiabetic active thiosugar sulfoniums, salacinol and neokotalanol, from plants of the genus Salacia (2021, Journal of Natural Medicines)
  • Radiation responsive PROTAC nanoparticles for tumor-specific proteolysis enhanced radiotherapy (2024, Journal of Materials Chemistry B)
  • Geranylated Coumarins From Thai Medicinal Plant Mammea siamensis With Testosterone 5α-Reductase Inhibitory Activity (2020, Frontiers in Chemistry)
  • Collagen synthesis-promoting and collagenase inhibitory activities of constituents isolated from the rhizomes of Picrorhiza kurroa Royle ex Benth (2020, Fitoterapia)
  • Design and Synthesis of Sulfonium Derivatives: A Novel Class of α-Glucosidase Inhibitors with Potent In Vivo Antihyperglycemic Activities (2023, Journal of Medicinal Chemistry)

Best Publications

  • Salacinol, potent antidiabetic principle with unique thiosugar sulfonium sulfate structure from the ayurvedic traditional medicine Salacia reticulata in Sri Lanka and India

    Masayuki Yoshikawa;Toshiyuki Murakami;Hiromi Shimada;Hisashi Matsuda

  • Absolute Stereostructure of Potent α-Glucosidase Inhibitor, Salacinol, with Unique Thiosugar Sulfonium Sulfate Inner Salt Structure from Salacia reticulata

    Masayuki Yoshikawa;Toshio Morikawa;Hisashi Matsuda;Genzoh Tanabe

  • Di-tert-butylsilylene (DTBS) group-directed α-selective galactosylation unaffected by C-2 participating functionalities

    Akihiro Imamura;Hiromune Ando;Satomi Korogi;Genzoh Tanabe

  • Acylated phenylethanoid oligoglycosides with hepatoprotective activity from the desert plant Cistanche tubulosa.

    Toshio Morikawa;Yingni Pan;Yingni Pan;Kiyofumi Ninomiya;Katsuya Imura

  • Phenylethanoid oligoglycosides and acylated oligosugars with vasorelaxant activity from Cistanche tubulosa.

    Masayuki Yoshikawa;Hisashi Matsuda;Toshio Morikawa;Toshio Morikawa;Haihui Xie

  • Alkaloid constituents from flower buds and leaves of sacred lotus (Nelumbo nucifera, Nymphaeaceae) with melanogenesis inhibitory activity in B16 melanoma cells

    Seikou Nakamura;Souichi Nakashima;Genzo Tanabe;Yoshimi Oda

  • Salaprionol and Ponkoranol with Thiosugar Sulfonium Sulfate Structure from Salacia prinoides and a-Glucosidase Inhibitory Activity of Ponkoranol and Kotalanol Desulfate

    Masayuki Yoshikawa;Fengming Xu;Seikou Nakamura;Tao Wang

  • Isolation, structure identification and SAR studies on thiosugar sulfonium salts, neosalaprinol and neoponkoranol, as potent α-glucosidase inhibitors.

    Weijia Xie;Genzoh Tanabe;Junji Akaki;Toshio Morikawa

  • Biological evaluation of de-O-sulfonated analogs of salacinol, the role of sulfate anion in the side chain on the α-glucosidase inhibitory activity

    Genzoh Tanabe;Kazuya Yoshikai;Takanori Hatanaka;Mizuho Yamamoto

  • Absolute stereostructures of novel norcadinane- and trinoreudesmane-type sesquiterpenes with nitric oxide production inhibitory activity from Alpinia oxyphylla.

    Osamu Muraoka;Manabu Fujimoto;Genzoh Tanabe;Michinori Kubo

  • Acylated phenylethanoid glycosides, echinacoside and acteoside from Cistanche tubulosa, improve glucose tolerance in mice

    Toshio Morikawa;Kiyofumi Ninomiya;Mio Imamura;Junji Akaki

  • Hepatoprotective triterpenes from traditional Tibetan medicine Potentilla anserina.

    Toshio Morikawa;Kiyofumi Ninomiya;Katsuya Imura;Takahiro Yamaguchi

  • On the structure of the bioactive constituent from ayurvedic medicine Salacia reticulata: revision of the literature

    Osamu Muraoka;Weijia Xie;Genzoh Tanabe;Mumen F.A. Amer

  • Oleanane-type triterpene oligoglycosides with pancreatic lipase inhibitory activity from the pericarps of Sapindus rarak

    Toshio Morikawa;Yuanyuan Xie;Yuanyuan Xie;Yasunobu Asao;Masaki Okamoto

  • Inhibitors of Nitric Oxide Production from the Rhizomes of Alpinia galanga: Structures of New 8–9′ Linked Neolignans and Sesquineolignan

    Toshio Morikawa;Shin Ando;Hisashi Matsuda;Shinya Kataoka

  • Bioactive constituents from Chinese natural medicines. XXII. Absolute structures of new megastigmane glycosides, sedumosides E1, E2, E3, F1, F2, and G, from Sedum sarmentosum (Crassulaceae).

    Toshio Morikawa;Toshio Morikawa;Yi Zhang;Seikou Nakamura;Hisashi Matsuda

  • Monoterpene constituents from Cistanche tubulosa--chemical structures of kankanosides A-E and kankanol-.

    Haihui Xie;Toshio Morikawa;Toshio Morikawa;Hisashi Matsuda;Seikou Nakamura

  • Total synthesis of (+/-)-stemonamide and (+/-)-isostemonamide using a radical cascade.

    Tsuyoshi Taniguchi;Genzo Tanabe;Osamu Muraoka;Hiroyuki Ishibashi

  • Bioactive constituents from Chinese natural medicines. XXIII. Absolute structures of new megastigmane glycosides, sedumosides A(4), A(5), A(6), H, and I, and hepatoprotective megastigmanes from Sedum sarmentosum.

    Kiyofumi Ninomiya;Kiyofumi Ninomiya;Toshio Morikawa;Toshio Morikawa;Yi Zhang;Seikou Nakamura

  • 7-endo selective aryl radical cyclization onto enamides leading to 3-benzazepines: concise construction of a cephalotaxine skeleton.

    Tsuyoshi Taniguchi;Atsuko Ishita;Masahiko Uchiyama;Osamu Tamura

  • Synthesis and biological evaluation of deoxy salacinols, the role of polar substituents in the side chain on the α-glucosidase inhibitory activity

    Osamu Muraoka;Kazuya Yoshikai;Hideo Takahashi;Toshie Minematsu

  • Bioactive Saponins and Glycosides. XXVIII. New Triterpene Saponins, Foliatheasaponins I, II, III, IV, and V, from Tencha (the Leaves of Camellia sinensis)

    Toshio Morikawa;Toshio Morikawa;Seikou Nakamura;Yasuyo Kato;Osamu Muraoka

Frequent Co-Authors

Toshio Morikawa
Toshio Morikawa Kindai University
Masayuki Yoshikawa
Masayuki Yoshikawa Kyoto Pharmaceutical University
Hisashi Matsuda
Hisashi Matsuda Kyoto Pharmaceutical University
Seikou Nakamura
Seikou Nakamura Kyoto Pharmaceutical University
Jinyi Xu
Jinyi Xu China Pharmaceutical University
Hiroshi Shimizu
Hiroshi Shimizu Hokkaido University
Kiyoshi Tomioka
Kiyoshi Tomioka Doshisha Women's College of Liberal Arts
Hequan Yao
Hequan Yao China Pharmaceutical University
Munekazu Iinuma
Munekazu Iinuma Gifu Pharmaceutical University
Makoto Kiso
Makoto Kiso Gifu University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to several related online degrees and career opportunities. For those interested in healthcare and pharmaceuticals, becoming a pharmacist is a popular path. Understanding the pharmacist education requirements is crucial, as this career demands extensive study and licensure but offers rewarding prospects.

Alternatively, a career in pharmaceutical sales may appeal to those who enjoy combining chemistry knowledge with business skills. Exploring the pharmaceutical sales rep salary and career paths can provide insight into the earning potential and growth within this field.

For chemistry enthusiasts interested in forensic applications, pursuing a forensic science online degree can be an excellent option. This degree prepares students for roles in criminal investigations and laboratory analysis.

Moreover, those drawn to medical investigations might consider becoming a medical examiner assistant. Learning about how to become a medical examiner assistant involves understanding the educational pathways and job outlook for this specialized role.

Best Scientists Citing Osamu Muraoka

Trending Scientists

Recently Published Articles