World's Best Scientists 2026 revealed!
Akira Hirasawa

Akira Hirasawa

D-Index & Metrics

Biology and Biochemistry

D-Index
68
Citations
17076
World Ranking
7767
National Ranking
523

Akira Hirasawa publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Akira Hirasawa sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 338 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Akira Hirasawa D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Akira Hirasawa sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 68 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Akira Hirasawa is affiliated with Okayama University in Japan and has contributed significantly to research spanning neuroscience, biochemistry, genetics, molecular biology, and medicine. Their work covers a range of topics prominently featuring neuropeptides, neuroinflammation, receptor mechanisms, and metabolic processes.

Hirasawa's research primarily focuses on the following main fields of study:

  • Neuroscience
  • Biochemistry, Genetics and Molecular Biology
  • Medicine

Their work further includes detailed exploration within subfields such as molecular biology, cellular and molecular neuroscience, neurology, physiology, and endocrine and autonomic systems.

  • Molecular Biology
  • Cellular and Molecular Neuroscience
  • Neurology
  • Physiology
  • Endocrine and Autonomic Systems

Among the main topics Hirasawa has investigated repeatedly are neuropeptides and animal physiology, neuroinflammation and neurodegeneration mechanisms, receptor mechanisms and signaling, peroxisome proliferator-activated receptors, regulation of appetite and obesity, metabolism, diabetes, cancer, and diabetes treatment and management.

  • Neuropeptides and Animal Physiology
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Receptor Mechanisms and Signaling
  • Peroxisome Proliferator-Activated Receptors
  • Regulation of Appetite and Obesity
  • Metabolism, Diabetes, and Cancer
  • Diabetes Treatment and Management

Hirasawa has contributed to various peer-reviewed journals, with multiple publications appearing in certain venues. Notable frequently used publication venues include:

  • GeroScience
  • Research Square (Research Square)
  • Environmental Health Perspectives
  • ACS Chemical Neuroscience
  • Scientific Reports

Selected recent papers by Hirasawa provide insight into the scope and focus of their research:

  • Molecular Mechanism of Apoptosis by Amyloid β-Protein Fibrils Formed on Neuronal Cells (2020) - ACS Chemical Neuroscience
  • Identification and functional characterisation of N-linked glycosylation of the orphan G protein-coupled receptor Gpr176 (2020) - Scientific Reports
  • A peripheral lipid sensor GPR120 remotely contributes to suppression of PGD2-microglia-provoked neuroinflammation and neurodegeneration in the mouse hippocampus (2021) - Journal of Neuroinflammation
  • Medium-chain triglycerides inhibit long-chain triglyceride-induced GIP secretion through GPR120-dependent inhibition of CCK (2021) - iScience
  • In vivo emergence of beige-like fat in chickens as physiological adaptation to cold environments (2021) - Amino Acids

The frequent co-authors collaborating with Hirasawa include Keiko Iida, Kensuke Iwasa, Shinji Yamamoto, Kei Maruyama, and Yoshinori Takei, indicating ongoing partnerships in exploring related scientific questions and expanding interdisciplinary work.

  • Keiko Iida
  • Kensuke Iwasa
  • Shinji Yamamoto
  • Kei Maruyama
  • Yoshinori Takei

Best Publications

  • Free fatty acids regulate gut incretin glucagon-like peptide-1 secretion through GPR120.

    Akira Hirasawa;Keiko Tsumaya;Takeo Awaji;Susumu Katsuma

  • Short-chain fatty acids and ketones directly regulate sympathetic nervous system via G protein-coupled receptor 41 (GPR41)

    Ikuo Kimura;Daisuke Inoue;Takeshi Maeda;Takafumi Hara

  • Bile acids promote glucagon-like peptide-1 secretion through TGR5 in a murine enteroendocrine cell line STC-1

    Susumu Katsuma;Akira Hirasawa;Gozoh Tsujimoto

  • Dysfunction of lipid sensor GPR120 leads to obesity in both mouse and human

    Atsuhiko Ichimura;Akira Hirasawa;Odile Poulain-Godefroy;Odile Poulain-Godefroy;Amélie Bonnefond;Amélie Bonnefond

  • A genome-wide association study identifies genetic variants in the CDKN2BAS locus associated with endometriosis in Japanese

    Satoko Uno;Hitoshi Zembutsu;Akira Hirasawa;Atsushi Takahashi

  • Free fatty acids induce cholecystokinin secretion through GPR120.

    Toshiki Tanaka;Susumu Katsuma;Susumu Katsuma;Tetsuya Adachi;Taka-aki Koshimizu

  • The regulation of adipogenesis through GPR120.

    Chizu Gotoh;Yeon Hee Hong;Tomoyo Iga;Daisuke Hishikawa

  • miR-152 is a tumor suppressor microRNA that is silenced by DNA hypermethylation in endometrial cancer

    Tomohiko Tsuruta;Ken Ichi Kozaki;Atsushi Uesugi;Mayuko Furuta

  • Use of recombinant α1-adrenoceptors to characterize subtype selectivity of drugs for the treatment of prostatic hypertrophy

    Rudolf Foglar;Katsushi Shibata;Kuniko Horie;Akira Hirasawa

  • Cloning, Functional Expression and Tissue Distribution of Human cDNA for the α1C-Adrenergic Receptor

    A. Hirasawa;K. Horie;T. Tanaka;K. Takagaki

  • Free fatty acid receptors act as nutrient sensors to regulate energy homeostasis.

    Atsuhiko Ichimura;Akira Hirasawa;Takafumi Hara;Gozoh Tsujimoto

  • Free fatty acids inhibit serum deprivation-induced apoptosis through GPR120 in a murine enteroendocrine cell line STC-1.

    Susumu Katsuma;Noriyuki Hatae;Takeaki Yano;Yoshinao Ruike

  • Association of 17q21-q24 gain in ovarian clear cell adenocarcinomas with poor prognosis and identification of PPM1D and APPBP2 as likely amplification targets.

    Akira Hirasawa;Fumiko Saito-Ohara;Jun Inoue;Jun Inoue;Daisuke Aoki

  • Free fatty acid receptors and drug discovery.

    Akira Hirasawa;Takafumi Hara;Susumu Katsuma;Tetsuya Adachi

  • Expression of cIAP1, a target for 11q22 amplification, correlates with resistance of cervical cancers to radiotherapy.

    Issei Imoto;Hitoshi Tsuda;Akira Hirasawa;Masahiko Miura

  • Distribution and regulation of protein expression of the free fatty acid receptor GPR120.

    Satoshi Miyauchi;Akira Hirasawa;Tomoyo Iga;Ning Liu

  • Novel selective ligands for free fatty acid receptors GPR120 and GPR40

    Takafumi Hara;Akira Hirasawa;Qi Sun;Keiko Sadakane

  • Free fatty acid receptors FFAR1 and GPR120 as novel therapeutic targets for metabolic disorders.

    Takafumi Hara;Akira Hirasawa;Atsuhiko Ichimura;Ikuo Kimura

  • Role of free fatty acid receptors in the regulation of energy metabolism

    Takafumi Hara;Daiji Kashihara;Atsuhiko Ichimura;Ikuo Kimura

  • Cloning and characterization of the rat free fatty acid receptor GPR120: in vivo effect of the natural ligand on GLP-1 secretion and proliferation of pancreatic β cells

    Toshiki Tanaka;Takeaki Yano;Tetsuya Adachi;Taka-aki Koshimizu

Frequent Co-Authors

Gozoh Tsujimoto
Gozoh Tsujimoto Kyoto University
Susumu Katsuma
Susumu Katsuma University of Tokyo
Hiroaki Ohno
Hiroaki Ohno Kyoto University
Nobutaka Fujii
Nobutaka Fujii Kyoto University
Issei Imoto
Issei Imoto University of Tokushima
Shinya Oishi
Shinya Oishi Kyoto University
Johji Inazawa
Johji Inazawa Tokyo Medical and Dental University
Akito Tanoue
Akito Tanoue Kumamoto University
Kazuo Kitaura
Kazuo Kitaura Kyoto University
Hitoshi Tsuda
Hitoshi Tsuda National Defense Medical College

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

Exploring Biology and Biochemistry opens doors to a diverse array of professional opportunities in healthcare, research, and administration. If you're considering advancing your education online, numerous accredited programs offer flexible learning for busy professionals.

Many students with a science background transition into healthcare management. The top cahme accredited mha programs prepare graduates for leadership roles within medical institutions, focusing on organizational skills and healthcare policy.

For those interested in advanced clinical roles, but unable to commit to onsite practicums, online dnp programs without clinicals can be a practical choice, offering coursework-based pathways to leadership in nursing.

Experienced professionals seeking senior roles in hospital administration may explore doctoral programs for healthcare administration, focusing on strategic management and operational leadership.

Biology and Biochemistry graduates can also consider pharmacy. Accredited online pharmd programs allow for career advancement as pharmacists or pharmaceutical researchers, with flexible options for continued employment while studying.

Whether you aim for clinical, administrative, or research careers, online degrees offer unmatched flexibility to achieve your goals in the growing health and science sectors.

Best Scientists Citing Akira Hirasawa

Trending Scientists

Recently Published Articles