World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 70 6054 5495 382 358 261 12617

Johji Yamahara publications per year

The chart shows the history of publications by Johji Yamahara between 1971 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Johji Yamahara published across 53 years, from 1971 to 2023, averaging 5.4 papers a year. Output peaked at 31 publications in 1997. 2 of the 286 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1971 to 2023. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 1997. 1971: 1 publication 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 1 publication 1976: 2 publications 1977: 0 publications 1978: 1 publication 1979: 2 publications 1980: 1 publication 1981: 3 publications 1982: 4 publications 1983: 4 publications 1984: 0 publications 1985: 18 publications 1986: 15 publications 1987: 8 publications 1988: 7 publications 1989: 17 publications 1990: 16 publications 1991: 5 publications 1992: 7 publications 1993: 11 publications 1994: 17 publications 1995: 16 publications 1996: 19 publications 1997: 31 publications 1998: 24 publications 1999: 14 publications 2000: 5 publications 2001: 1 publication 2002: 0 publications 2003: 0 publications 2004: 1 publication 2005: 4 publications 2006: 3 publications 2007: 1 publication 2008: 4 publications 2009: 2 publications 2010: 1 publication 2011: 1 publication 2012: 4 publications 2013: 3 publications 2014: 3 publications 2015: 1 publication 2016: 1 publication 2017: 1 publication 2018: 0 publications 2019: 2 publications 2020: 2 publications 2021: 0 publications 2022: 1 publication 2023: 1 publication
1971 2023

286 publications in total across all disciplines

View publications per year as a table
Johji Yamahara: publications per year, 1971 to 2023
Year Publications
1971 1
1972 0
1973 0
1974 0
1975 1
1976 2
1977 0
1978 1
1979 2
1980 1
1981 3
1982 4
1983 4
1984 0
1985 18
1986 15
1987 8
1988 7
1989 17
1990 16
1991 5
1992 7
1993 11
1994 17
1995 16
1996 19
1997 31
1998 24
1999 14
2000 5
2001 1
2002 0
2003 0
2004 1
2005 4
2006 3
2007 1
2008 4
2009 2
2010 1
2011 1
2012 4
2013 3
2014 3
2015 1
2016 1
2017 1
2018 0
2019 2
2020 2
2021 0
2022 1
2023 1
Total 286
Download as CSV

Johji Yamahara 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 Johji Yamahara 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, 261–280 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: 261 publications — 53rd percentile

53% 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
261–280 979 261
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
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
Download as CSV

Johji Yamahara 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 Johji Yamahara 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, 70–71 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: 70 D-Index — 68th percentile

68% 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 70
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
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
Download as CSV

Overview

Johji Yamahara is affiliated with Kyoto Pharmaceutical University in Japan. Their research primarily focuses on the interconnected areas of medicine, biochemistry, genetics, and molecular biology. Within these broader fields, they have contributed notably to subfields such as molecular biology, epidemiology, endocrinology, diabetes and metabolism, biochemistry, and pharmacology.

Their work covers a range of topics including:

  • Diet, metabolism, and disease
  • Liver disease diagnosis and treatment
  • Metabolism, diabetes, and cancer
  • Medicinal plants and bioactive compounds
  • Natural product bioactivities and synthesis
  • Antioxidant activity and oxidative stress
  • Retinoids in leukemia and cellular processes

Yamahara has published several papers addressing these themes. Selected recent publications include:

  • Apple pomace and rosemary extract ameliorates hepatic steatosis in fructose-fed rats: Association with enhancing fatty acid oxidation and suppressing inflammation, 2020, Experimental and Therapeutic Medicine
  • Rhodiola crenulata root extract ameliorates fructose-induced hepatic steatosis in rats: Association with activating autophagy, 2020, Biomedicine & Pharmacotherapy
  • Ursolic acid ameliorates adipose tissue insulin resistance in aged rats via activating the Akt-glucose transporter 4 signaling pathway and inhibiting inflammation, 2021, Experimental and Therapeutic Medicine
  • Oleanolic Acid Inhibits SCD1 Gene Expression to Ameliorate Fructose-Induced Hepatosteatosis through SREBP1c-Dependent and -Independent Mechanisms, 2023, Molecular Nutrition & Food Research
  • [6-Gingerol ameliorates adipose tissue insulin resistance in aging rats]., 2022, PubMed

Their frequent publication venues include:

  • Experimental and Therapeutic Medicine
  • Biomedicine & Pharmacotherapy
  • Molecular Nutrition & Food Research
  • PubMed

Collaborations have involved several coauthors with whom Yamahara has published multiple times. These coauthors are:

  • Chunlin Yuan
  • Ling Yao
  • Jianwei Wang
  • Tongzhuang Wang
  • Ying Lai

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

  • Anti-diabetic action of Punica granatum flower extract: activation of PPAR-gamma and identification of an active component.

    Tom H W Huang;Gang Peng;Bhavani P Kota;George Q Li

  • Punica granatum flower extract, a potent alpha-glucosidase inhibitor, improves postprandial hyperglycemia in Zucker diabetic fatty rats.

    Yuhao Li;Suping Wen;Bhavani Prasad Kota;Gang Peng

  • The inhibitory effects of mangiferin, a naturally occurring glucosylxanthone, in bowel carcinogenesis of male F344 rats.

    Naoki Yoshimi;Kengo Matsunaga;Masaki Katayama;Yasuhiro Yamada

  • Gastrointestinal motility enhancing effect of ginger and its active constituents.

    J. Yamahara;Qirong Huang;Yuhao Li;Lin Xu

  • Inhibitory effects of plumbagin and juglone on azoxymethane-induced intestinal carcinogenesis in rats

    Shigeyuki Sugie;Kiyohisa Okamoto;K.M.Wahidur Rahman;Takuji Tanaka

  • Medicinal Foodstuffs. IV. Fenugreek Seed. (1) : Structures of Trigoneosides Ia, Ib, IIa, IIb, IIIa, and IIIb, New Furostanol Saponins from the Seeds of Indian Trigonella foenum-graecum L.

    Masayuki Yoshikawa;Toshiyuki Murakami;Hajime Komatsu;Nobutoshi Murakami

  • Pomegranate flower improves cardiac lipid metabolism in a diabetic rat model: role of lowering circulating lipids.

    Tom Hsun-Wei Huang;Gang Peng;Bhavani Prasad Kota;George Qian Li

  • Antidiabetic Principles of Natural Medicines. IV. Aldose Reductase and α-Glucosidase Inhibitors from the Roots of Salacia oblonga WALL. (Celastraceae) : Structure of a New Friedelane-Type Triterpene, Kotalagenin 16-Acetate

    Hisashi Matsuda;Toshiyuki Murakami;Kenichi Yashiro;Johji Yamahara

  • Medicinal Foodstuffs. V. Moroheiya. (1) : Absolute Stereostructures of Corchoionosides A, B, and C, Histamine Release Inhibitors from the Leaves of Vietnamese Corchorus olitorius L. (Tiliaceae)

    Masayuki Yoshikawa;Hiromi Shimada;Masami Saka;Satoshi Yoshizumi

  • Antidiabetic Principles of Natural Medicines. II. Aldose Reductase and α-Glucosidase Inhibitors from Brazilian Natural Medicine, the Leaves of Myrcia multiflora DC. (Myrtacae) : Structures of Myrciacitrins I and II and Myrciaphenones A and B

    Masayuki Yoshikawa;Hiromi Shimada;Norihisa Nishida;Yuhao Li

  • THE ANTI-ULCER EFFECT IN RATS OF GINGER CONSTITUENTS

    J Yamahara;M Mochizuki;H Q Rong;H Matsuda

  • Pomegranate flower extract diminishes cardiac fibrosis in Zucker diabetic fatty rats: modulation of cardiac endothelin-1 and nuclear factor-kappaB pathways.

    Tom H W Huang;Qinglin Yang;Masaki Harada;George Q Li

  • Pomegranate flower: a unique traditional antidiabetic medicine with dual PPAR‐α/‐γ activator properties

    Yuhao Li;Yanfei Qi;Tom Hsun-Wei Huang;Johji Yamahara

  • Effects of escins Ia, Ib, IIa, and IIb from horse chestnut, the seeds of Aesculus hippocastanum L., on acute inflammation in animals

    Hisashi Matsuda;Yuhao Li;Toshiyuki Murakami;Kiyofumi Ninomiya

  • Antidiabetic Principles of Natural Medicines. III. Structure-Related Inhibitory Activity and Action Mode of Oleanolic Acid Glycosides on Hypoglycemic Activity

    Hisashi Matsuda;Yuhao Li;Toshiyuki Murakami;Narumi Matsumura

  • Salacia oblonga root improves postprandial hyperlipidemia and hepatic steatosis in Zucker diabetic fatty rats: activation of PPAR-alpha.

    Tom Hsun-Wei Huang;Gang Peng;George Qian Li;Johji Yamahara

  • A 35-day gavage safety assessment of ginger in rats.

    Xianglu Rong;Gang Peng;Takuya Suzuki;Qinglin Yang

  • Stomachic principles in ginger. III: An anti-ulcer principle, 6-gingesulfonic acid, and three monoacyldigalactosylglycerols, gingerglycolipids A, B, and C, from zingiberis rhizoma originating in Taiwan

    Masayuki Yoshikawa;Shoko Yamaguchi;Kumiko Kunimi;Hisashi Matsuda

  • Bioactive saponins and glycosides. VIII. Notoginseng (1): New dammarane-type triterpene oligoglycosides, notoginsenosides-A, -B, -C, and -D, from the dried root of Panax notoginseng (BURK.) F. H. Chen

    Masayuki Yoshikawa;Toshiyuki Murakami;Takahiro Ueno;Kenichi Yashiro

Frequent Co-Authors

Masayuki Yoshikawa
Masayuki Yoshikawa Kyoto Pharmaceutical University
Hisashi Matsuda
Hisashi Matsuda Kyoto Pharmaceutical University
Toshiyuki Murakami
Toshiyuki Murakami Kyoto Pharmaceutical University
Hiroshi Matsuda
Hiroshi Matsuda Tokyo University of Agriculture and Technology
Basil D. Roufogalis
Basil D. Roufogalis University of Sydney
Takuji Tanaka
Takuji Tanaka Gifu University
Isao Kitagawa
Isao Kitagawa Osaka University
Hideki Mori
Hideki Mori Gifu University
Robert T. Batey
Robert T. Batey University of Colorado Boulder
Osamu Tanaka
Osamu Tanaka Maruzen Pharmaceuticals Co. Ltd.

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 diverse professional fields. Many students explore pathways that combine chemistry knowledge with specialized skills, such as becoming a pharmacist. If you’re interested in understanding the detailed steps and requirements, this guide on how to become a pharmacist offers valuable insights into necessary education, licensing, and job outlook.

Another promising career is pharmaceutical sales, where a strong foundation in chemistry enhances your ability to communicate product benefits effectively. For a realistic view of earnings and job prospects, check out this overview on pharma sales rep salary.

If you prefer a more investigative role, consider forensic science. Many universities now offer forensic science degree online programs, allowing flexible study options while preparing for careers in crime labs.

Additionally, some chemistry graduates pursue niches like becoming an autopsy technician. This unique role requires a blend of scientific expertise and hands-on training. For more information about education paths and job outlook, explore the detailed article on autopsy technician.

Best Scientists Citing Johji Yamahara

Trending Scientists

Recently Published Articles