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Omar M. A. El-Agnaf

Omar M. A. El-Agnaf

D-Index & Metrics

Biology and Biochemistry

D-Index
72
Citations
21993
World Ranking
6205
National Ranking
4

Omar M. A. El-Agnaf 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 Omar M. A. El-Agnaf 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: 201 publications — 50th percentile

50% of scientists in this discipline score the same or lower.

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

Omar M. A. El-Agnaf 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 Omar M. A. El-Agnaf 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: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

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

Overview

Omar M. A. El-Agnaf is affiliated with Hamad bin Khalifa University in Qatar and has contributed extensively to research in medicine and biochemistry, genetics, and molecular biology. The focus of their work often centers on neurology, molecular biology, and physiology within the broader context of cellular and molecular neuroscience and infectious diseases.

The scientist's research covers a range of topics, primarily addressing:

  • Parkinson's Disease Mechanisms and Treatments
  • Neurological disorders and treatments
  • Botulinum Toxin and Related Neurological Disorders
  • Alzheimer's disease research and treatments
  • Cellular transport and secretion
  • Nuclear Receptors and Signaling
  • Lysosomal Storage Disorders Research

Omar M. A. El-Agnaf has published several papers in leading scientific journals. Among the recent papers are:

  • Bidirectional gut-to-brain and brain-to-gut propagation of synucleinopathy in non-human primates, 2020, Brain
  • α-Synuclein phosphorylation at serine 129 occurs after initial protein deposition and inhibits seeded fibril formation and toxicity, 2022, Proceedings of the National Academy of Sciences
  • Alpha-synuclein research: defining strategic moves in the battle against Parkinson's disease, 2021, npj Parkinson's Disease
  • Diagnostic, Prognostic, and Mechanistic Biomarkers of Diabetes Mellitus-Associated Cognitive Decline, 2022, International Journal of Molecular Sciences
  • Safety and immunogenicity of the α-synuclein active immunotherapeutic PD01A in patients with Parkinson's disease: a randomised, single-blinded, phase 1 trial, 2020, The Lancet Neurology

Their frequent co-authors include Nishant N. Vaikath, Nour K. Majbour, Simona S. Ghanem, Houari Abdesselem, and Ilham Y. Abdi, with numerous collaborative publications alongside these researchers.

Key publication venues where Omar M. A. El-Agnaf has contributed include:

  • International Journal of Molecular Sciences
  • Neurobiology of Disease
  • Molecular Neurodegeneration
  • Journal of Parkinson's Disease
  • bioRxiv (Cold Spring Harbor Laboratory)

The scientific work primarily pertains to medicine and intersects with various biological subfields linked to neurodegenerative diseases and neurological conditions. The research covers molecular mechanisms, biomarkers, immunotherapeutics, and disease-associated cognitive impairments.

Best Publications

  • Diagnosis and management of dementia with Lewy bodies Fourth consensus report of the DLB Consortium

    Ian G. McKeith;Bradley F. Boeve;Dennis W. DIckson;Glenda Halliday

  • Detection of oligomeric forms of α-synuclein protein in human plasma as a potential biomarker for Parkinson’s disease

    Omar M. A. El-Agnaf;Sultan A. Salem;Katerina E. Paleologou;Martin D. Curran

  • Protein aggregation in the brain: the molecular basis for Alzheimer's and Parkinson's diseases.

    G. Brent Irvine;Omar M. El-Agnaf;Ganesh M. Shankar;Dominic M. Walsh;Dominic M. Walsh

  • α-Synuclein in central nervous system and from erythrocytes, mammalian cells, and Escherichia coli exists predominantly as disordered monomer.

    Bruno Fauvet;Martial Kamdem Mbefo;Mohamed-Bilal Fares;Carole Desobry

  • α-synuclein implicated in Parkinson's disease is present in extracellular biological fluids, including human plasma

    Omar M. A. El-Agnaf;Sultan A. Salem;Katerina E. Paleologou;Leanne J. Cooper

  • Detection of elevated levels of α-synuclein oligomers in CSF from patients with Parkinson disease

    T. Tokuda;M.M. Qureshi;M.T. Ardah;S. Varghese

  • Aggregates from mutant and wild-type α-synuclein proteins and NAC peptide induce apoptotic cell death in human neuroblastoma cells by formation of β-sheet and amyloid-like filaments

    Omar M.A El-Agnaf;Ross Jakes;Martin D Curran;Derek Middleton;Derek Middleton

  • Decreased α-synuclein in cerebrospinal fluid of aged individuals and subjects with Parkinson’s disease.

    Takahiko Tokuda;Sultan A. Salem;David Allsop;Toshiki Mizuno

  • Direct quantification of CSF α-synuclein by ELISA and first cross-sectional study in patients with neurodegeneration

    Brit Mollenhauer;Valerie Cullen;Ilana Kahn;Bryan Krastins

  • Formation of hydrogen peroxide and hydroxyl radicals from Aβ and α-synuclein as a possible mechanism of cell death in Alzheimer’s disease and Parkinson’s disease.

    Brian J. Tabner;Stuart Turnbull;Omar M.A. El-Agnaf;David Allsop

  • Effects of the mutations Ala30 to Pro and Ala53 to Thr on the physical and morphological properties of α‐synuclein protein implicated in Parkinson's disease

    Omar M.A El-Agnaf;Ross Jakes;Martin D Curran;Andrew Wallace

  • Hydrogen Peroxide Is Generated during the Very Early Stages of Aggregation of the Amyloid Peptides Implicated in Alzheimer Disease and Familial British Dementia

    Brian J. Tabner;Omar M.A. El-Agnaf;Omar M.A. El-Agnaf;Stuart Turnbull;Matthew J. German

  • Cerebrospinal fluid lysosomal enzymes and alpha-synuclein in Parkinson's disease.

    Lucilla Parnetti;Davide Chiasserini;Emanuele Persichetti;Paolo Eusebi

  • Oligomerization and Toxicity of β-Amyloid-42 Implicated in Alzheimer's Disease

    Omar M.A. El-Agnaf;Devinder S. Mahil;Bhroma P. Patel;Brian M. Austen

  • Production of reactive oxygen species from aggregating proteins implicated in Alzheimer's disease, Parkinson's disease and other neurodegenerative diseases.

    Brian J. Tabner;Stuart Turnbull;Omar M.A. El-Agnaf;David Allsop

  • Oligomeric and phosphorylated alpha-synuclein as potential CSF biomarkers for Parkinson’s disease

    Nour K. Majbour;Nour K. Majbour;Nishant N. Vaikath;Nishant N. Vaikath;Karin D. van Dijk;Mustafa T. Ardah

  • Detection of elevated levels of soluble α-synuclein oligomers in post-mortem brain extracts from patients with dementia with Lewy bodies

    Katerina E Paleologou;Christine L Kragh;David M A Mann;Sultan A Salem

  • Cerebrospinal fluid biomarkers in Parkinson disease.

    Lucilla Parnetti;Anna Castrioto;Davide Chiasserini;Emanuele Persichetti

  • α-synuclein implicated in Parkinson’s disease catalyses the formation of hydrogen peroxide in vitro.

    Stuart Turnbull;Brian J Tabner;Omar M.A El-Agnaf;Susan Moore

  • A strategy for designing inhibitors of α -synuclein aggregation and toxicity as a novel treatment for Parkinson's disease and related disorders

    Omar M. A. El-Agnaf;Katerina E. Paleologou;Brett Greer;Abdulmawala M. Abogrein

Frequent Co-Authors

David Allsop
David Allsop Lancaster University
Brit Mollenhauer
Brit Mollenhauer University of Göttingen
Tiago F. Outeiro
Tiago F. Outeiro University of Göttingen
Lucilla Parnetti
Lucilla Parnetti University of Perugia
Derek Middleton
Derek Middleton University of Liverpool
Francis Martin
Francis Martin University of Lorraine
Hilal A. Lashuel
Hilal A. Lashuel École Polytechnique Fédérale de Lausanne
Paolo Calabresi
Paolo Calabresi Catholic University of the Sacred Heart
Jose A. Obeso
Jose A. Obeso CEU San Pablo University

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