World's Best Scientists 2026 revealed!
Ishwar S. Parhar

Ishwar S. Parhar

D-Index & Metrics

Neuroscience

D-Index
51
Citations
8218
World Ranking
5588
National Ranking
176

Ishwar S. Parhar publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Ishwar S. Parhar sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 220 publications — 68th percentile

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

The last bar groups every scientist with 887 publications or more.

Ishwar S. Parhar D-index placement in Neuroscience in 2026

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

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 51 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

Ishwar S. Parhar is affiliated with the University of Toyama in Japan and is active in research fields intersecting biochemistry, genetics, molecular biology, medicine, and neuroscience. Their work spans a range of disciplines with a particular focus on molecular biology, reproductive medicine, genetics, cellular and molecular neuroscience, and physiology.

The scientist's research explores several primary topics, including:

  • Hypothalamic control of reproductive hormones
  • Neuroendocrine regulation and behavior
  • Genetic and clinical aspects of sex determination and chromosomal abnormalities
  • Neuropeptides and animal physiology
  • Zebrafish biomedical research applications
  • Stress responses and cortisol
  • Regulation of appetite and obesity

They have contributed to numerous scholarly publications, frequently publishing in the following venues:

  • International Journal of Molecular Sciences
  • Scientific Reports
  • Frontiers in Endocrinology
  • Frontiers in Neuroendocrinology
  • Cell and Tissue Research

Among their recent published papers are:

  • FoxO1 signaling as a therapeutic target for type 2 diabetes and obesity, 2020, European Journal of Pharmacology
  • Sex Determination and Differentiation in Teleost: Roles of Genetics, Environment, and Brain, 2021, Biology
  • CREB nuclear transcription activity as a targeting factor in the treatment of diabetes and diabetes complications, 2021, Biochemical Pharmacology
  • MicroRNAs Regulate Cell Cycle and Cell Death Pathways in Glioblastoma, 2021, International Journal of Molecular Sciences
  • The Hippocampal Vulnerability to Herpes Simplex Virus Type I Infection: Relevance to Alzheimer's Disease and Memory Impairment, 2021, Frontiers in Cellular Neuroscience

Collaborative research is a significant aspect of their career, with frequent co-authors including:

  • Satoshi Ogawa
  • Tomoko Soga
  • Eng Hwa Wong
  • Khaled Benchoula
  • Chuin Hau Teo

Best Publications

  • Laser-Captured Single Digoxigenin-Labeled Neurons of Gonadotropin-Releasing Hormone Types Reveal a Novel G Protein-Coupled Receptor (Gpr54) during Maturation in Cichlid Fish

    Ishwar S. Parhar;Satoshi Ogawa;Yasuo Sakuma

  • Cloning and Expression of kiss2 in the Zebrafish and Medaka

    Takashi Kitahashi;Satoshi Ogawa;Ishwar S. Parhar

  • Organization of Two Independent Kisspeptin Systems Derived from Evolutionary-Ancient Kiss Genes in the Brain of Zebrafish

    Arianna Servili;Yann Le Page;Jérôme Leprince;Alain Caraty

  • GnRH neurons : gene to behavior

    Ishwar S. Parhar;康夫 佐久間

  • Evidence that gonadotropin-releasing hormone (GnRH) functions as a prolactin-releasing factor in a teleost fish (Oreochromis mossambicus) and primary structures for three native GnRH molecules

    G. M. Weber;J. F. F. Powell;M. Park;W. H. Fischer

  • Effects of intrahypothalamic administration of antisense DNA for progesterone receptor mRNA on reproductive behavior and progesterone receptor immunoreactivity in female rat

    S Ogawa;UE Olazabal;IS Parhar;DW Pfaff

  • The kiss/kissr Systems Are Dispensable for Zebrafish Reproduction: Evidence From Gene Knockout Studies

    Haipei Tang;Yun Liu;Daji Luo;Satoshi Ogawa

  • Metformin in colorectal cancer: molecular mechanism, preclinical and clinical aspects

    Muhamad Noor Alfarizal Kamarudin;Md. Moklesur Rahman Sarker;Jin-Rong Zhou;Ishwar Parhar

  • Generation of polyclonal antiserum against the growth hormone secretagogue receptor (GHS-R): evidence that the GHS-R exists in the hypothalamus, pituitary and stomach of rats.

    Yujin Shuto;Tamotsu Shibasaki;Ken Wada;Ishwar Parhar

  • Role of serotonin in fish reproduction

    Parvathy Prasad;Satoshi Ogawa;Ishwar S. Parhar

  • Ghrelin gene in cichlid fish is modulated by sex and development

    Ishwar S Parhar;Hideki Sato;Yasuo Sakuma

  • Habenular kisspeptin modulates fear in the zebrafish

    Satoshi Ogawa;Fatima Megala Nathan;Ishwar S Parhar

  • EMBRYONIC DEVELOPMENT OF GONADOTROPIN-RELEASING HORMONE NEURONS IN THE SOCKEYE SALMON

    Ishwar S. Parhar;Munehico Iwata;Donald W. Pfaff;Marlene Schwanzel‐Fukuda

  • Expression of the second isoform of gonadotrophin-releasing hormone (GnRH-II) in human endometrium throughout the menstrual cycle

    Kang Woo Cheon;Hyoung-Song Lee;Ishwar S. Parhar;Inn Soo Kang

  • Thyroid hormone and estrogen regulate brain region-specific messenger ribonucleic acids encoding three gonadotropin-releasing hormone genes in sexually immature male fish, Oreochromis niloticus.

    Ishwar S. Parhar;Tomoko Soga;Yasuo Sakuma

  • RFamide peptides as mediators in environmental control of GnRH neurons.

    Ishwar Parhar;Satoshi Ogawa;Takashi Kitahashi

  • LPXRFa, the piscine ortholog of GnIH, and LPXRF receptor positively regulate gonadotropin secretion in Tilapia (Oreochromis niloticus).

    Jakob Biran;Matan Golan;Naama Mizrahi;Satoshi Ogawa

  • Sex differences in the brain of goldfish: gonadotropin-releasing hormone and vasotocinergic neurons

    Ishwar Parhar;H Tosaki;Y Sakuma;M Kobayashi

  • A Journey through the Gonadotropin-Inhibitory Hormone System of Fish.

    José A. Muñoz-Cueto;José A. Paullada-Salmerón;María Aliaga-Guerrero;Mairi E. Cowan

  • Central pathways integrating metabolism and reproduction in teleosts.

    Shahjahan;Takashi Kitahashi;Ishwar S Parhar

  • Gonadotropin-releasing hormone gene expression in teleosts

    Ishwar S Parhar;Donald W Pfaff;Marlene Schwanzel-Fukuda

  • Immunoneutralization of gonadotropin-releasing hormone type-III suppresses male reproductive behavior of cichlids

    Satoshi Ogawa;Go Akiyama;Shu Mei Kato;Tomoko Soga

Frequent Co-Authors

Yasuo Sakuma
Yasuo Sakuma Nippon Medical School
Donald W. Pfaff
Donald W. Pfaff Rockefeller University
Robert P. Millar
Robert P. Millar University of Pretoria
Kazuyoshi Tsutsui
Kazuyoshi Tsutsui Hiroshima University
Gen Watanabe
Gen Watanabe Tokyo University of Agriculture and Technology
Yoshitaka Oka
Yoshitaka Oka University of Tokyo
Jérôme Leprince
Jérôme Leprince University of Rouen
Christopher H. K. Cheng
Christopher H. K. Cheng Chinese University of Hong Kong
Hubert Vaudry
Hubert Vaudry University of Rouen
Olivier Kah
Olivier Kah University of Rennes

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Related Online Degrees & Career Pathways

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