World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
98
Citations
39892
World Ranking
8855
National Ranking
4560

Roy G. Smith publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Roy G. Smith sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 358 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Roy G. Smith D-index placement in Medicine in 2026

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

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 98 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Roy G. Smith is a researcher affiliated with the Scripps Research Institute in the United States. Their work primarily focuses on topics related to medicine and neuroscience, with particular emphasis on endocrinology, diabetes, and metabolism. Over their career, they have contributed to studies in the fields of endocrine and autonomic systems, surgery, physiology, and nutrition and dietetics.

Smith's research covers a range of topics including:

  • Regulation of Appetite and Obesity
  • Growth Hormone and Insulin-like Growth Factors
  • Pancreatic function and diabetes
  • Diet, Metabolism, and Disease
  • Diet and metabolism studies
  • Biochemical Analysis and Sensing Techniques
  • Genetics and Neurodevelopmental Disorders

Frequent coauthors collaborating with Smith include Yuxiang Sun, Michael O. Thorner, Geetali Pradhan, Chia-Shan Wu, and Daniel Villarreal.

Smith's recent publications showcase their focus areas and contributions across various journals. These include:

  • "β Cell GHS-R Regulates Insulin Secretion and Sensitivity," 2021, International Journal of Molecular Sciences
  • "Growth Hormone Secretagogues as Potential Therapeutic Agents to Restore Growth Hormone Secretion in Older Subjects to Those Observed in Young Adults," 2023, The Journals of Gerontology Series A
  • "Binding domain characterization of growth hormone secretagogue receptor," 2022, Journal of Translational Internal Medicine
  • "LUM-201 Elicits Greater GH Response than Standard GH Secretagogues in Pediatric Growth Hormone Deficiency," 2021, Journal of the Endocrine Society

The publications appear in a variety of venues, with notable frequency in:

  • International Journal of Molecular Sciences
  • The Journals of Gerontology Series A
  • Journal of Translational Internal Medicine
  • Journal of the Endocrine Society

Best Publications

  • A Receptor in Pituitary and Hypothalamus That Functions in Growth Hormone Release

    Andrew D. Howard;Scott D. Feighner;Doris F. Cully;Joseph P. Arena

  • The Distribution and Mechanism of Action of Ghrelin in the CNS Demonstrates a Novel Hypothalamic Circuit Regulating Energy Homeostasis

    Michael A Cowley;Roy G Smith;Sabrina Diano;Matthias Tschöp

  • Distribution of mRNA encoding the growth hormone secretagogue receptor in brain and peripheral tissues.

    Xiao-Ming Guan;Hong Yu;Oksana C. Palyha;Karen Kulju McKee

  • Ghrelin stimulation of growth hormone release and appetite is mediated through the growth hormone secretagogue receptor

    Yuxiang Sun;Pei Wang;Hui Zheng;Roy G. Smith

  • Orexigenic action of peripheral ghrelin is mediated by neuropeptide Y and agouti-related protein.

    H. Y. Chen;M. E. Trumbauer;A. S. Chen;D. T. Weingarth

  • Peptidomimetic regulation of growth hormone secretion.

    Roy G. Smith;Lex H. T. Van der Ploeg;Andrew D. Howard;Scott D. Feighner

  • Deletion of ghrelin impairs neither growth nor appetite.

    Yuxiang Sun;Saira Ahmed;Roy G. Smith

  • Aromatase enzyme activity and sex determination in chickens

    Alex Elbrecht;Roy G. Smith

  • Discovery of a small molecule insulin mimetic with antidiabetic activity in mice.

    Bei Zhang;Gino Salituro;Deborah Szalkowski;Zhihua Li

  • Mutations in NR4A2 associated with familial Parkinson disease.

    Wei-dong Le;Pingyi Xu;Joseph Jankovic;Hong Jiang

  • Rapid Identification of Subtype-Selective Agonists of the Somatostatin Receptor Through Combinatorial Chemistry

    Susan P. Rohrer;Elizabeth T. Birzin;Ralph T. Mosley;Scott C. Berk

  • Novel Peroxisome Proliferator-activated Receptor (PPAR) γ and PPARδ Ligands Produce Distinct Biological Effects

    Joel Berger;Mark D. Leibowitz;Thomas W. Doebber;Alex Elbrecht

  • Thiazolidinediones produce a conformational change in peroxisomal proliferator-activated receptor-gamma: binding and activation correlate with antidiabetic actions in db/db mice.

    J Berger;P Bailey;C Biswas;C A Cullinan

  • A nonpeptidyl growth hormone secretagogue

    R G Smith;K Cheng;W R Schoen;S S Pong

  • Essential Role of Growth Hormone in Ischemia-Induced Retinal Neovascularization

    Lois E. H. Smith;Lois E. H. Smith;Lois E. H. Smith;John J. Kopchick;John J. Kopchick;John J. Kopchick;Wen Chen;Wen Chen;Wen Chen;Joanne Knapp;Joanne Knapp;Joanne Knapp

  • Molecular Analysis of Rat Pituitary and Hypothalamic Growth Hormone Secretagogue Receptors

    Karen Kulju McKee;Oksana C. Palyha;Scott D. Feighner;Donna L. Hreniuk

  • Receptor for motilin identified in the human gastrointestinal system.

    Scott D. Feighner;Carina P. Tan;Karen Kulju McKee;Oksana C. Palyha

  • The role of calcium‐binding proteins in selective motoneuron vulnerability in amyotrophic lateral sclerosis

    Maria E. Alexianu;Bao‐Kuang ‐K Ho;A. Habib Mohamed;Vincenzo La Bella

  • Des-acyl ghrelin induces food intake by a mechanism independent of the growth hormone secretagogue receptor.

    Koji Toshinai;Hideki Yamaguchi;Yuxiang Sun;Roy G. Smith

  • The synergistic effects of His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 on growth hormone (GH)-releasing factor-stimulated GH release and intracellular adenosine 3',5'-monophosphate accumulation in rat primary pituitary cell culture.

    K. Cheng;W. W.-S. Chan;A. Barreto;E. M. Convey

Frequent Co-Authors

Arthur A. Patchett
Arthur A. Patchett MSD (United States)
Matthew J. Wyvratt
Matthew J. Wyvratt Medicines for Malaria Venture
Michael H. Fisher
Michael H. Fisher MSD (United States)
Andrew D. Howard
Andrew D. Howard MSD (United States)
Stanley H. Appel
Stanley H. Appel Houston Methodist
James M. Schaeffer
James M. Schaeffer MSD (United States)
Lex H.T. Van der Ploeg
Lex H.T. Van der Ploeg MSD (United States)
Larry I. Lipshultz
Larry I. Lipshultz Baylor College of Medicine
Gareth Leng
Gareth Leng University of Edinburgh
David E. Moller
David E. Moller Eli Lilly (United States)

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