World's Best Scientists 2026 revealed!
Gudmar Thorleifsson

Gudmar Thorleifsson

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Biology and Biochemistry
Iceland
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
155
Citations
111142
World Ranking
146
National Ranking
1

Gudmar Thorleifsson 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 Gudmar Thorleifsson 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: 413 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 848 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 949 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 840 scientists 207–216 publications: 733 scientists 217–226 publications: 708 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: 417 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: 196 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: 59 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: 440 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

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

Gudmar Thorleifsson 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 Gudmar Thorleifsson sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 316 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 899 scientists 52–53 D-Index: 1,025 scientists 54–55 D-Index: 1,149 scientists 56–57 D-Index: 1,235 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,162 scientists 62–63 D-Index: 1,130 scientists 64–65 D-Index: 1,031 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 714 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: 71 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: 155 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Iceland Leader Award
  • 2025 - Research.com Biology and Biochemistry in Iceland Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Genetics
  • Internal medicine

Genome-wide association study, Genetics, Single-nucleotide polymorphism, Genotyping and Case-control study are his primary areas of study. He interconnects Allele, Genetic association, Locus, Type 2 diabetes and Candidate gene in the investigation of issues within Genome-wide association study. His research ties Glucose homeostasis and Genetics together.

He has included themes like Genetic architecture and Heritability in his Single-nucleotide polymorphism study. His studies in Genotyping integrate themes in fields like Blood lipids, Cholesterol, Lipoprotein and Medical genetics. His work in Case-control study tackles topics such as Linkage disequilibrium which are related to areas like Genetic linkage and SNP.

His most cited work include:

  • Association analyses of 249,796 individuals reveal 18 new loci associated with body mass index (2348 citations)
  • Discovery and refinement of loci associated with lipid levels (1814 citations)
  • A genome-wide association search for type 2 diabetes genes in African Americans. (1727 citations)

What are the main themes of his work throughout his whole career to date?

His primary scientific interests are in Genetics, Genome-wide association study, Single-nucleotide polymorphism, Internal medicine and Locus. Genetics connects with themes related to Body mass index in his study. His Genome-wide association study research includes themes of Bioinformatics, Case-control study, Linkage disequilibrium, Allele frequency and Genetic association.

His research integrates issues of Meta-analysis, Heritability, Quantitative trait locus and Genetic epidemiology in his study of Single-nucleotide polymorphism. His work deals with themes such as Endocrinology, Type 2 diabetes and Cardiology, which intersect with Internal medicine. His Locus research incorporates themes from Haplotype and Pathogenesis.

He most often published in these fields:

  • Genetics (54.44%)
  • Genome-wide association study (47.78%)
  • Single-nucleotide polymorphism (26.67%)

What were the highlights of his more recent work (between 2017-2019)?

  • Genetics (54.44%)
  • Allele (13.33%)
  • Genome-wide association study (47.78%)

In recent papers he was focusing on the following fields of study:

Gudmar Thorleifsson spends much of his time researching Genetics, Allele, Genome-wide association study, Genetic architecture and Body fat distribution. His work on Proband, Nature versus nurture and Genotype as part of general Genetics research is frequently linked to Affect and Educational attainment, thereby connecting diverse disciplines of science. His Genome-wide association study study incorporates themes from Disease and Cardiology.

His Genetic architecture research incorporates elements of Bioelectrical impedance analysis, Bioinformatics, Lean body mass, Locus and Single-nucleotide polymorphism. His Bioinformatics research is multidisciplinary, incorporating perspectives in Body mass index and Linkage disequilibrium. Gudmar Thorleifsson focuses mostly in the field of Body fat distribution, narrowing it down to matters related to Hyperlipidemia and, in some cases, Type 2 diabetes.

Between 2017 and 2019, his most popular works were:

  • The nature of nurture: Effects of parental genotypes. (351 citations)
  • Multiancestry association study identifies new asthma risk loci that colocalize with immune-cell enhancer marks (203 citations)
  • Refining the accuracy of validated target identification through coding variant fine-mapping in type 2 diabetes (165 citations)

In his most recent research, the most cited papers focused on:

  • Gene
  • Genetics
  • Internal medicine

His primary areas of investigation include Genome-wide association study, Allele, Insulin resistance, Genetic association and Genetic architecture. His Genome-wide association study study typically links adjacent topics like Immunology. His work carried out in the field of Allele brings together such families of science as Adipocyte, Internal medicine, Endocrinology and Lipogenesis.

His Insulin resistance research integrates issues from Linkage disequilibrium and Bioinformatics. His Genetic association research is multidisciplinary, incorporating elements of Pleiotropy, Autoimmune disease, Immune system and Hay fever, Asthma. In his work, Genetics is strongly intertwined with Computational biology, which is a subfield of Genetic architecture.

Best Publications

  • Biological, clinical and population relevance of 95 loci for blood lipids

    Tanya M. Teslovich;Kiran Musunuru;Albert V. Smith;Andrew C. Edmondson

  • Association analyses of 249,796 individuals reveal 18 new loci associated with body mass index

    Elizabeth K. Speliotes;Elizabeth K. Speliotes;Cristen J. Willer;Sonja I. Berndt;Keri L. Monda

  • Discovery and refinement of loci associated with lipid levels

    Cristen J. Willer;Ellen M. Schmidt;Sebanti Sengupta;Gina M. Peloso;Gina M. Peloso;Gina M. Peloso

  • Variant of transcription factor 7-like 2 (TCF7L2) gene confers risk of type 2 diabetes.

    Struan F. A. Grant;Gudmar Thorleifsson;Inga Reynisdottir;Rafil Benediktsson

  • New genetic loci implicated in fasting glucose homeostasis and their impact on type 2 diabetes risk

    Josée Dupuis;Josée Dupuis;Claudia Langenberg;Inga Prokopenko;Richa Saxena;Richa Saxena

  • Meta-analysis of genome-wide association data and large-scale replication identifies additional susceptibility loci for type 2 diabetes

    E Zeggini;L J Scott;R Saxena;B F Voight

  • Defining the role of common variation in the genomic and biological architecture of adult human height

    Andrew R. Wood;Tonu Esko;Jian Yang;Sailaja Vedantam

  • Large-scale association analysis identifies 13 new susceptibility loci for coronary artery disease

    Heribert Schunkert;Inke R. König;Sekar Kathiresan;Muredach P. Reilly

  • Large-scale association analysis provides insights into the genetic architecture and pathophysiology of type 2 diabetes

    Andrew P Morris;Benjamin F Voight;Benjamin F Voight;Tanya M Teslovich;Teresa Ferreira

  • A common variant on chromosome 9p21 affects the risk of myocardial infarction

    Anna Helgadottir;Gudmar Thorleifsson;Andrei Manolescu;Solveig Gretarsdottir

  • A genome-wide association search for type 2 diabetes genes in African Americans.

    N D Palmer;C W McDonough;P J Hicks;B H Roh

  • Large-scale association analysis identifies new risk loci for coronary artery disease

    Panos Deloukas;Stavroula Kanoni;Christina Willenborg;Martin Farrall

  • Genetic studies of body mass index yield new insights for obesity biology

    Adam E. Locke;Bratati Kahali;Sonja I. Berndt;Anne E. Justice

  • A variant associated with nicotine dependence, lung cancer and peripheral arterial disease.

    Thorgeir E Thorgeirsson;Frank Geller;Patrick Sulem;Thorunn Rafnar

  • Genetics of gene expression and its effect on disease

    Valur Emilsson;Gudmar Thorleifsson;Bin Zhang;Amy S. Leonardson

  • A variant in CDKAL1 influences insulin response and risk of type 2 diabetes.

    Valgerdur Steinthorsdottir;Gudmar Thorleifsson;Inga Reynisdottir;Rafn Benediktsson

  • Genome-wide association of early-onset myocardial infarction with single nucleotide polymorphisms and copy number variants.

    Sekar Kathiresan;Benjamin F Voight;Shaun Purcell;Kiran Musunuru

  • The gene encoding 5-lipoxygenase activating protein confers risk of myocardial infarction and stroke

    Anna Helgadottir;Andrei Manolescu;Gudmar Thorleifsson;Solveig Gretarsdottir

  • Association analyses of 249,796 individuals reveal 18 new loci associated with body mass index

    E. K. Speliotes;C. J. Willer;S. I. Berndt;K. L. Monda

  • A common inversion under selection in Europeans

    Hreinn Stefansson;Agnar Helgason;Gudmar Thorleifsson;Valgerdur Steinthorsdottir

Frequent Co-Authors

Kari Stefansson
Kari Stefansson deCODE Genetics (Iceland)
Unnur Thorsteinsdottir
Unnur Thorsteinsdottir deCODE Genetics (Iceland)
Leif Groop
Leif Groop Lund University
Cecilia M. Lindgren
Cecilia M. Lindgren University of Oxford
Erik Ingelsson
Erik Ingelsson Stanford University
Inês Barroso
Inês Barroso University of Exeter
Augustine Kong
Augustine Kong University of Oxford
Samuli Ripatti
Samuli Ripatti University of Helsinki
Valgerdur Steinthorsdottir
Valgerdur Steinthorsdottir deCODE Genetics (Iceland)

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