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Toshihiko Osawa

Toshihiko Osawa

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Biology and Biochemistry
Japan
2026
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Chemistry
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 103 1123 991 51 49 430 35199
Biology and Biochemistry 104 1270 1135 71 63 410 34934

Toshihiko Osawa publications per year

The chart shows the history of publications by Toshihiko Osawa between 1971 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toshihiko Osawa published across 55 years, from 1971 to 2025, averaging 8.6 papers a year. Output peaked at 42 publications in 1998. 3 of the 474 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1971 to 2025. Vertical axis: number of publications, 0 to 42. Peak 42 publications in 1998. 1971: 1 publication 1972: 0 publications 1973: 1 publication 1974: 2 publications 1975: 0 publications 1976: 1 publication 1977: 3 publications 1978: 0 publications 1979: 1 publication 1980: 2 publications 1981: 4 publications 1982: 2 publications 1983: 5 publications 1984: 3 publications 1985: 7 publications 1986: 12 publications 1987: 7 publications 1988: 6 publications 1989: 5 publications 1990: 12 publications 1991: 12 publications 1992: 12 publications 1993: 11 publications 1994: 20 publications 1995: 8 publications 1996: 19 publications 1997: 24 publications 1998: 42 publications 1999: 30 publications 2000: 18 publications 2001: 14 publications 2002: 28 publications 2003: 21 publications 2004: 24 publications 2005: 12 publications 2006: 5 publications 2007: 14 publications 2008: 13 publications 2009: 12 publications 2010: 12 publications 2011: 5 publications 2012: 0 publications 2013: 4 publications 2014: 3 publications 2015: 6 publications 2016: 4 publications 2017: 0 publications 2018: 4 publications 2019: 3 publications 2020: 6 publications 2021: 4 publications 2022: 2 publications 2023: 5 publications 2024: 2 publications 2025: 1 publication
1971 2025

474 publications in total across all disciplines

View publications per year as a table
Toshihiko Osawa: publications per year, 1971 to 2025
Year Publications
1971 1
1972 0
1973 1
1974 2
1975 0
1976 1
1977 3
1978 0
1979 1
1980 2
1981 4
1982 2
1983 5
1984 3
1985 7
1986 12
1987 7
1988 6
1989 5
1990 12
1991 12
1992 12
1993 11
1994 20
1995 8
1996 19
1997 24
1998 42
1999 30
2000 18
2001 14
2002 28
2003 21
2004 24
2005 12
2006 5
2007 14
2008 13
2009 12
2010 12
2011 5
2012 0
2013 4
2014 3
2015 6
2016 4
2017 0
2018 4
2019 3
2020 6
2021 4
2022 2
2023 5
2024 2
2025 1
Total 474
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Toshihiko Osawa 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 Toshihiko Osawa sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 421–440 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 430 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327 430
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Toshihiko Osawa 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 Toshihiko Osawa sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 102–103 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 103 D-Index — 94th percentile

94% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105 103
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Japan Leader Award
  • 2026 - Research.com Chemistry in Japan Leader Award
  • 2025 - Research.com Biology and Biochemistry in Japan Leader Award
  • 2025 - Research.com Chemistry in Japan Leader Award
  • 2023 - Research.com Biology and Biochemistry in Japan Leader Award
  • 2022 - Research.com Chemistry in Japan Leader Award

Overview

Toshihiko Osawa is affiliated with Nagoya University in Japan and has contributed extensively to research in biochemistry, genetics, molecular biology, and medicine. Their publication record encompasses a broad range of topics within these fields, particularly focusing on molecular biology, pathology and forensic medicine, biochemistry, nutrition and dietetics, and molecular medicine.

Their research involves several thematic areas, including:

  • Phytochemicals and antioxidant activities
  • Phytoestrogen effects and research
  • Curcumin's biomedical applications
  • Natural product bioactivities and synthesis
  • Fungal biology and applications
  • Tea polyphenols and effects
  • Melanin and skin pigmentation

Among their recent publications are:

  • Red Clover (Trifolium pratense L.) Sprout Prevents Metabolic Syndrome, 2020, Journal of Nutritional Science and Vitaminology
  • Effects of isoflavone-rich red clover extract on blood glucose level: A randomized, double-blind, placebo-controlled trial, 2021, Journal of Food Science
  • Correlation between human health and reactive oxygen species produced in blood: a long-term chemiluminescence and fluorescence analysis, 2021, Scientific Reports
  • Equol Inhibits Mushroom Tyrosinase in Vitro through Tight Binding, 2020, Biological and Pharmaceutical Bulletin
  • Oxidized Perilla and Linseed Oils Induce Neuronal Apoptosis by Caspase-Dependent and -Independent Pathways, 2020, Foods

Osawa collaborates frequently with several coauthors, including:

  • Shin-ichiro Yokoyama (6 joint publications)
  • Toshio Niwa (6 joint publications)
  • Mika Mochizuki (5 joint publications)
  • Akiko Hirai (3 joint publications)
  • Yuki Ueno (3 joint publications)

Their work is often published in specialized venues such as:

  • Biological and Pharmaceutical Bulletin (4 publications)
  • Journal of Nutritional Science and Vitaminology (3 publications)
  • Food Science and Technology Research (2 publications)
  • Journal of Food Science (1 publication)
  • Scientific Reports (1 publication)

Best Publications

  • Dietary cyanidin 3-O-beta-D-glucoside-rich purple corn color prevents obesity and ameliorates hyperglycemia in mice.

    Takanori Tsuda;Fumihiko Horio;Koji Uchida;Hiromitsu Aoki

  • Protein-bound acrolein: Potential markers for oxidative stress

    Koji Uchida;Masamichi Kanematsu;Kensuke Sakai;Tsukasa Matsuda

  • Quantitative immunohistochemical determination of 8-hydroxy-2'-deoxyguanosine by a monoclonal antibody N45.1: its application to ferric nitrilotriacetate-induced renal carcinogenesis model

    S. Toyokuni;T. Tanaka;Y. Hattori;Y. Nishiyama

  • Acrolein Is a Product of Lipid Peroxidation Reaction: FORMATION OF FREE ACROLEIN AND ITS CONJUGATE WITH LYSINE RESIDUES IN OXIDIZED LOW DENSITY LIPOPROTEINS *

    Koji Uchida;Masamichi Kanematsu;Yasujiro Morimitsu;Toshihiko Osawa

  • Activation of Stress Signaling Pathways by the End Product of Lipid Peroxidation: 4-HYDROXY-2-NONENAL IS A POTENTIAL INDUCER OF INTRACELLULAR PEROXIDE PRODUCTION *

    Koji Uchida;Mihoko Shiraishi;Yuko Naito;Yasuyoshi Torii

  • Hydroxyl Radical-scavenging Effects of Spices and Scavengers from Brown Mustard (Brassica nigra)

    Shin-Kyo Chung;Toshihiko Osawa;Shunro Kawakishi

  • 15-Deoxy-Δ12,14-prostaglandin J2: A PROSTAGLANDIN D2 METABOLITE GENERATED DURING INFLAMMATORY PROCESSES

    Takahiro Shibata;Mitsuhiro Kondo;Toshihiko Osawa;Noriyuki Shibata

  • Methylglyoxal Modification of Protein: CHEMICAL AND IMMUNOCHEMICAL CHARACTERIZATION OF METHYLGLYOXAL-ARGININE ADDUCTS *

    Tomoko Oya;Nobutaka Hattori;Yoshikuni Mizuno;Satoshi Miyata

  • Involvement of the β-diketone moiety in the antioxidative Mechanism of Tetrahydrocurcumin

    Yosunori Sugiyama;Shunro Kawakishi;Toshihiko Osawa

  • Inhibition of lipid peroxidation and the active oxygen radical scavenging effect of anthocyanin pigments isolated from Phaseolus vulgaris L.

    Takanori Tsuda;Kaoru Shiga;Katsumi Ohshima;Shunro Kawakishi

  • Absorption and metabolism of cyanidin 3-O-β-D-glucoside in rats

    Takanori Tsuda;Fumihiko Horio;Toshihiko Osawa

  • A Novel type of antioxidant isolated from leaf wax of eucalyptus leaves

    Toshihiko Osawa;Mitsuo Namiki

  • Antioxidative Activity of Tetrahydrocurcuminoids

    Toshihiko Osawa;Yasunori Sugiyama;Masanori Inayoshi;Shunro Kawakishi

  • The contribution of plant food antioxidants to human health

    Narasimhan Ramarathnam;Toshihiko Osawa;Hirotomo Ochi;Shunro Kawakishi

  • Biomarker evidence of DNA oxidation in lung cancer patients: association of urinary 8-hydroxy-2′-deoxyguanosine excretion with radiotherapy, chemotherapy, and response to treatment

    Marina Erhola;Shinya Toyokuni;Kunihiko Okada;Tomoyuki Tanaka

  • 4-Hydroxy-2-nonenal-mediated impairment of intracellular proteolysis during oxidative stress. Identification of proteasomes as target molecules.

    Kunihiko Okada;Chantima Wangpoengtrakul;Toshihiko Osawa;Shinya Toyokuni

  • Chemopreventive effects of carotenoids and curcumins on mouse colon carcinogenesis after 1,2-dimethylhydrazine initiation.

    Jin Man Kim;Shunichi Araki;Dae Joong Kim;Cheol Beom Park

  • Antioxidative activity of the anthocyanin pigments cyanidin 3-O-beta-D-glucoside and cyanidin

    Takanori Tsuda;Mie Watanabe;Katsumi Ohshima;Seiji Norinobu

  • Contribution of lignan analogues to antioxidative activity of refined unroasted sesame seed oil

    Y. Fukuda;M. Nagata;T. Osawa;M. Namiki

  • Curcumin and Especially Tetrahydrocurcumin Ameliorate Oxidative Stress-Induced Renal Injury in Mice

    Kunihiko Okada;Chantima Wangpoengtrakul;Tomoyuki Tanaka;Shinya Toyokuni

  • Protective Role of Antioxidative Food Factors in Oxidative Stress Caused by Hyperglycemia

    Toshihiko Osawa;Yoji Kato

Frequent Co-Authors

Shunro Kawakishi
Shunro Kawakishi Sugiyama Jogakuen University
Koji Uchida
Koji Uchida University of Tokyo
Yoji Kato
Yoji Kato University of Hyogo
Yoshimasa Nakamura
Yoshimasa Nakamura Okayama University
Shinya Toyokuni
Shinya Toyokuni Nagoya University
Hiroshi Hiai
Hiroshi Hiai Kyoto University
Hajime Ohigashi
Hajime Ohigashi Kyoto University
Toshikazu Yoshikawa
Toshikazu Yoshikawa Kyoto Prefectural University of Medicine
Junji Terao
Junji Terao University of Tokushima
Akira Murakami
Akira Murakami Kyoto University

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