World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
69
Citations
24079
World Ranking
7266
National Ranking
557

David Gems 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 David Gems 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: 157 publications — 30th percentile

30% of scientists in this discipline score the same or lower.

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

David Gems 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 David Gems 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: 69 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Overview

David Gems is affiliated with University College London in the United Kingdom and has a research focus spanning biochemistry, genetics, and molecular biology. Their primary field of study is Aging, with specific attention to genetics and longevity in model organisms.

The scientist's recent publications include:

  • "Guidelines for measuring reactive oxygen species and oxidative damage in cells and in vivo," 2022, Nature Metabolism
  • "The hoverfly and the wasp: A critique of the hallmarks of aging as a paradigm," 2021, Ageing Research Reviews
  • "The hyperfunction theory: An emerging paradigm for the biology of aging," 2022, Ageing Research Reviews
  • "C. elegans feed yolk to their young in a form of primitive lactation," 2021, Nature Communications
  • "Reproductive Suicide: Similar Mechanisms of Aging in C. elegans and Pacific Salmon," 2021, Frontiers in Cell and Developmental Biology

David Gems collaborates frequently with several researchers, including Carina Kern, Marina Ezcurra, João Pedro de Magalhães, Aihan Zhang, and Bruce Zhang. The frequency of these collaborations suggests an active research network focused on aging and related biological systems.

The scientist's frequent publication venues are diverse, with multiple papers appearing in the following:

  • Preprints.org
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Ageing Research Reviews
  • GeroScience
  • Nature Communications

David Gems' work covers a range of subfields related to aging biology:

  • Aging
  • Physiology
  • Endocrine and Autonomic Systems
  • Genetics
  • Molecular Biology

The core topics addressed in their research include:

  • Genetics, Aging, and Longevity in Model Organisms
  • Spaceflight effects on biology
  • Circadian rhythm and melatonin
  • Aging and Gerontology Research
  • Evolution and Genetic Dynamics
  • Epigenetics and DNA Methylation
  • Telomeres, Telomerase, and Senescence

Best Publications

  • Extension of Life-Span by Loss of CHICO, a Drosophila Insulin Receptor Substrate Protein

    David J. Clancy;David Gems;Lawrence G. Harshman;Sean Oldham

  • Ribosomal Protein S6 Kinase 1 Signaling Regulates Mammalian Life Span

    Colin Selman;Jennifer M A Tullet;Daniela Wieser;Elaine Elizabeth Irvine

  • Two Pleiotropic Classes of daf-2 Mutation Affect Larval Arrest, Adult Behavior, Reproduction and Longevity in Caenorhabditis elegans

    David Gems;Amy J. Sutton;Mark L. Sundermeyer;Patrice S. Albert

  • Metformin Retards Aging in C. elegans by Altering Microbial Folate and Methionine Metabolism

    Filipe Cabreiro;Catherine Au;Kit-Yi Leung;Nuria Vergara-Irigaray

  • Unraveling the biological roles of reactive oxygen species.

    Michael P. Murphy;Arne Holmgren;Nils Göran Larsson;Barry Halliwell

  • Absence of effects of Sir2 overexpression on lifespan in C. elegans and Drosophila

    Camilla Burnett;Sara Valentini;Filipe Gomes Cabreiro;Martin Goss

  • Mechanisms of ageing: public or private?

    Linda Partridge;David Gems

  • Genetics of Longevity in Model Organisms: Debates and Paradigm Shifts

    David Gems;Linda Partridge

  • Interventions to Slow Aging in Humans: Are We Ready?

    Valter D. Longo;Adam Antebi;Andrzej Bartke;Nir Barzilai

  • Stress-response hormesis and aging: "that which does not kill us makes us stronger".

    David Gems;Linda Partridge

  • Sex and Death: What Is the Connection?

    Linda Partridge;David Gems;Dominic J. Withers

  • Evidence for lifespan extension and delayed age-related biomarkers in insulin receptor substrate 1 null mice

    Colin Selman;Steven Lingard;Agharul I. Choudhury;Rachel L. Batterham

  • Effects of resveratrol on lifespan in Drosophila melanogaster and Caenorhabditis elegans.

    Timothy M. Bass;David Weinkove;Koen Houthoofd;David Gems

  • Against the oxidative damage theory of aging: superoxide dismutases protect against oxidative stress but have little or no effect on life span in Caenorhabditis elegans

    Ryan Doonan;Joshua J. McElwee;Filip Matthijssens;Glenda A. Walker

  • Shared Transcriptional Signature in Caenorhabditis elegans Dauer Larvae and Long-lived daf-2 Mutants Implicates Detoxification System in Longevity Assurance

    Joshua J. McElwee;Eugene Schuster;Eric Blanc;James H. Thomas

  • Genetic, Behavioral and Environmental Determinants of Male Longevity in Caenorhabditis elegans

    David Gems;David Gems;Donald L. Riddle

  • Antioxidant defense and aging in C. elegans: is the oxidative damage theory of aging wrong?

    David Gems;Ryan Doonan

  • Dietary Restriction in Long-Lived Dwarf Flies

    David J. Clancy;David Gems;Ernst Hafen;Sally J. Leevers

  • Measurement of H2O2 within Living Drosophila during Aging Using a Ratiometric Mass Spectrometry Probe Targeted to the Mitochondrial Matrix

    Helena M. Cochemé;Caroline Quin;Stephen J. McQuaker;Filipe Cabreiro

  • Longevity in Caenorhabditis elegans reduced by mating but not gamete production

    David Gems;Donald L. Riddle

Frequent Co-Authors

Linda Partridge
Linda Partridge Max Planck Society
Janet M. Thornton
Janet M. Thornton European Bioinformatics Institute
Dominic J. Withers
Dominic J. Withers Imperial College London
Jacques R. Vanfleteren
Jacques R. Vanfleteren Ghent University
Claudio Franceschi
Claudio Franceschi University of Bologna
Colin Selman
Colin Selman University of Glasgow
Paul C. Driscoll
Paul C. Driscoll University College London
Mark Viney
Mark Viney University of Bristol
Donald L Riddle
Donald L Riddle University of Missouri
Jan Vijg
Jan Vijg Albert Einstein College of Medicine

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