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Molecular Biology

D-Index
58
Citations
9934
World Ranking
2109
National Ranking
1046

Fred D. Ledley publication distribution in Molecular Biology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Molecular Biology in 2026. The highlighted bar marks where Fred D. Ledley sits on this spectrum.

47–56 publications: 7 scientists 57–66 publications: 17 scientists 67–76 publications: 65 scientists 77–86 publications: 90 scientists 87–96 publications: 125 scientists 97–106 publications: 131 scientists 107–116 publications: 162 scientists 117–126 publications: 177 scientists 127–136 publications: 158 scientists 137–146 publications: 158 scientists 147–156 publications: 146 scientists 157–166 publications: 159 scientists 167–176 publications: 131 scientists 177–186 publications: 110 scientists 187–196 publications: 112 scientists 197–206 publications: 100 scientists 207–216 publications: 89 scientists 217–226 publications: 98 scientists 227–236 publications: 74 scientists 237–246 publications: 72 scientists 247–256 publications: 63 scientists 257–266 publications: 53 scientists 267–276 publications: 54 scientists 277–286 publications: 49 scientists 287–296 publications: 52 scientists 297–306 publications: 43 scientists 307–316 publications: 46 scientists 317–326 publications: 41 scientists 327–336 publications: 42 scientists 337–346 publications: 31 scientists 347–356 publications: 28 scientists 357–366 publications: 29 scientists 367–376 publications: 26 scientists 377–386 publications: 24 scientists 387–396 publications: 24 scientists 397–406 publications: 14 scientists 407–416 publications: 13 scientists 417–426 publications: 20 scientists 427–436 publications: 12 scientists 437–446 publications: 20 scientists 447–456 publications: 11 scientists 457–466 publications: 10 scientists 467–476 publications: 14 scientists 477–486 publications: 14 scientists 487–496 publications: 10 scientists 497–506 publications: 13 scientists 507–516 publications: 13 scientists 517–526 publications: 2 scientists 527–536 publications: 4 scientists 537–546 publications: 6 scientists 547–556 publications: 8 scientists 557–563 publications: 6 scientists 564+ publications: 100 scientists
47 publications 564+

This scientist: 187 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 564 publications or more.

Fred D. Ledley D-index placement in Molecular Biology in 2026

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

40–41 D-Index: 36 scientists 42–43 D-Index: 101 scientists 44–45 D-Index: 115 scientists 46–47 D-Index: 121 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 130 scientists 52–53 D-Index: 106 scientists 54–55 D-Index: 116 scientists 56–57 D-Index: 113 scientists 58–59 D-Index: 129 scientists 60–61 D-Index: 120 scientists 62–63 D-Index: 105 scientists 64–65 D-Index: 131 scientists 66–67 D-Index: 95 scientists 68–69 D-Index: 97 scientists 70–71 D-Index: 106 scientists 72–73 D-Index: 83 scientists 74–75 D-Index: 89 scientists 76–77 D-Index: 77 scientists 78–79 D-Index: 70 scientists 80–81 D-Index: 73 scientists 82–83 D-Index: 60 scientists 84–85 D-Index: 48 scientists 86–87 D-Index: 45 scientists 88–89 D-Index: 50 scientists 90–91 D-Index: 31 scientists 92–93 D-Index: 51 scientists 94–95 D-Index: 43 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 39 scientists 100–101 D-Index: 41 scientists 102–103 D-Index: 29 scientists 104–105 D-Index: 33 scientists 106–107 D-Index: 35 scientists 108–109 D-Index: 20 scientists 110–111 D-Index: 38 scientists 112–113 D-Index: 19 scientists 114–115 D-Index: 28 scientists 116–117 D-Index: 13 scientists 118–119 D-Index: 23 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 15 scientists 124–125 D-Index: 11 scientists 126–127 D-Index: 21 scientists 128–129 D-Index: 7 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 14 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 9 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 16 scientists 142–143 D-Index: 7 scientists 144 D-Index: 7 scientists 145+ D-Index: 100 scientists
40 D-Index 145+

This scientist: 58 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 145 D-Index or more.

Research.com Recognitions

  • 2013 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Fred D. Ledley is affiliated with Bentley University in the United States. Their research spans several interdisciplinary fields, particularly focusing on the intersection of economics and medicine.

The primary fields of study for Ledley include Economics, Econometrics and Finance, with 31 publications, and Medicine, with 14 publications. Subfields explored in their work cover Economics and Econometrics, Infectious Diseases, Immunology, Public Health, Environmental and Occupational Health, and General Health Professions.

Key research topics addressed by Ledley are Pharmaceutical Economics and Policy, Health Systems, Economic Evaluations, Quality of Life, Innovation Policy and R&D, Biosimilars and Bioanalytical Methods, SARS-CoV-2 and COVID-19 Research, Biotechnology and Related Fields, and Intellectual Property and Patents.

Some of the recent papers authored or coauthored by Ledley include:

  • Profitability of Large Pharmaceutical Companies Compared With Other Large Public Companies, 2020, JAMA
  • Comparison of Research Spending on New Drug Approvals by the National Institutes of Health vs the Pharmaceutical Industry, 2010-2019, 2023, JAMA Health Forum
  • NIH funding for vaccine readiness before the COVID-19 pandemic, 2021, Vaccine
  • Spending on Phased Clinical Development of Approved Drugs by the US National Institutes of Health Compared With Industry, 2023, JAMA Health Forum
  • Profitability of Large Pharmaceutical Companies Compared With Other Large Public Companies, 2020, Obstetrical & Gynecological Survey

Frequent collaborators in Ledley's research include Ekaterina Galkina Cleary, Matthew J. Jackson, Gregory Vaughan, Edward Zhou, and Sarah Shonka McCoy.

Ledley has contributed to multiple prominent publication venues such as bioRxiv (Cold Spring Harbor Laboratory), PLoS ONE, Zenodo (CERN European Organization for Nuclear Research), JAMA Health Forum, and SSRN Electronic Journal.

In recognition of their professional contributions, Ledley was named a Fellow of the American Association for the Advancement of Science (AAAS) in 2013.

Best Publications

  • Nonviral Gene Therapy: The Promise of Genes as Pharmaceutical Products

    Fred D. Ledley

  • Mouse hepatocytes migrate to liver parenchyma and function indefinitely after intrasplenic transplantation.

    Katherine Parker Ponder;Sanjeev Gupta;Frances Leland;Gretchen Darlington

  • Nucleotide sequence of a full-length complementary DNA clone and amino acid sequence of human phenylalanine hydroxylase

    Simon C. M. Kwok;Fred D. Ledley;Anthony G. DiLella;Kathryn J. H. Robson

  • Pharmaceutical approach to somatic gene therapy.

    Fred D. Ledley

  • Thyrotropin-ganglioside interactions and their relationship to the structure and function of thyrotropin receptors

    Brian R. Mullin;Peter H. Fishman;George Lee;Salvatore M. Aloj

  • Molecular structure and polymorphic map of the human phenylalanine hydroxylase gene.

    Anthony G. DiLella;Simon C. M. Kwok;Fred D. Ledley;Joshua Marvit

  • Full-length cDNA for rabbit tryptophan hydroxylase: functional domains and evolution of aromatic amino acid hydroxylases

    Hernan E. Grenett;Fred D. Ledley;Lori L. Reed;Savio L. C. Woo

  • The mouse c-abl locus: molecular cloning and characterization.

    Jean Yin Jen Wang;Fred Ledley;Stephen Goff;Rosalind Lee

  • Contribution of NIH funding to new drug approvals 2010–2016

    Ekaterina Galkina Cleary;Jennifer M. Beierlein;Navleen Surjit Khanuja;Laura M. McNamee

  • Human gene marker/therapy clinical protocols.

    S. A. Rosenberg;R. M. Blaese;M. K. Brenner;A. B. Deisseroth

  • In vivo gene transfer into rabbit thyroid follicular cells by direct DNA injection.

    Michael L. Sikes;Bert W. O'Malley;Milton J. Finegold;Fred D. Ledley

  • Identification of a Point Mutation in the Topoisomerase II Gene from a Human Leukemia Cell Line Containing an Amsacrine-resistant Form of Topoisomerase II

    Michael Hinds;Karl Deisseroth;Karl Deisseroth;Janice Mayes;Elizabeth Altschuler

  • Extensive restriction site polymorphism at the human phenylalanine hydroxylase locus and application in prenatal diagnosis of phenylketonuria.

    A. S. Lidsky;F. D. Ledley;A. G. DiLella;S. C. Kwok

  • Cloning of full-length methylmalonyl-CoA mutase from a cDNA library using the polymerase chain reaction.

    Ruud Jansen;Frantisek Kalousek;Wayne A. Fenton;Leon E. Rosenberg

  • Why pharmacogenomics? Why now?

    David Housman;Fred D. Ledley

  • Non-viral gene therapy.

    Fred D Ledley

  • Homology between phenylalanine and tyrosine hydroxylases reveals common structural and functional domains.

    Fred D. Ledley;Anthony G. DiLella;Simon C. M. Kwok;Savio L. C. Woo

  • Somatic gene therapy to cells associated with fluid spaces

    Fred D. Ledley;Bert W. O'malley

  • Gene Transfer and Expression of Human Phenylalanine Hydroxylase

    Fred D. Ledley;Hernan E. Grenett;Anthony G. DiLella;Simon C. M. Kwok

  • Thyrotropin-ganglioside interactions and their relationship to the structure and function of thyrotropin receptors (hormone mechanism/cholera toxin/luteinizing hormone/human chorionic gonadotropin/adenylate cyclase)

    Brian R. Mullin;H Peter;George Lee;Salvatore M. Aloj

Frequent Co-Authors

Savio L. C. Woo
Savio L. C. Woo Icahn School of Medicine at Mount Sinai
Milton J. Finegold
Milton J. Finegold Baylor College of Medicine
Leonard D. Kohn
Leonard D. Kohn National Institutes of Health
Gretchen J. Darlington
Gretchen J. Darlington Baylor College of Medicine
Dorothy E. Lewis
Dorothy E. Lewis The University of Texas Health Science Center at Houston
David S. Rosenblatt
David S. Rosenblatt McGill University
David H. Ledbetter
David H. Ledbetter University of Florida
Dinah S. Singer
Dinah S. Singer National Institutes of Health
Seymour Kaufman
Seymour Kaufman National Institutes of Health
Arthur L. Beaudet
Arthur L. Beaudet Baylor College of Medicine

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