World's Best Scientists 2026 revealed!
VIEW LIST
Allen F. Ryan

D-Index & Metrics

Biology and Biochemistry

D-Index
75
Citations
17054
World Ranking
5411
National Ranking
2568

Allen F. Ryan 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 Allen F. Ryan 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: 354 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

Allen F. Ryan 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 Allen F. Ryan 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: 75 D-Index — 74th percentile

74% of scientists in this discipline score the same or lower.

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

Overview

Allen F. Ryan is affiliated with the University of California, San Diego in the United States. Their research primarily spans the field of medicine, with a significant focus on otorhinolaryngology, sensory systems, immunology, pulmonary and respiratory medicine, and neurology.

Their work extensively covers topics related to ear surgery and otitis media, hearing, cochlea, tinnitus, and genetics. Other research interests include immune response and inflammation, respiratory and cough-related research, vestibular and auditory disorders, antimicrobial peptides and activities, as well as sinusitis and nasal conditions.

Among the frequent coauthors collaborating with Ryan are Arwa Kurabi, Kwang Pak, Anke Leichtle, Regie Lyn P. Santos-Cortez, and Eduardo Chávez.

Ryan has published multiple papers in several notable venues. Frequent publication venues include Laryngo-Rhino-Otologie, UNC Libraries, Frontiers in Genetics, Frontiers in Cellular and Infection Microbiology, and Scientific Reports.

Selected recent papers include:

  • "Novel Risk Loci in Tinnitus and Causal Inference With Neuropsychiatric Disorders Among Adults of European Ancestry," 2020, JAMA Otolaryngology-Head & Neck Surgery
  • "Noise Exposures Causing Hearing Loss Generate Proteotoxic Stress and Activate the Proteostasis Network," 2020, Cell Reports
  • "Single-Cell Transcriptomes Reveal a Complex Cellular Landscape in the Middle Ear and Differential Capacities for Acute Response to Infection," 2020, Frontiers in Genetics
  • "Immunohistochemical and qPCR Detection of SARS-CoV-2 in the Human Middle Ear Versus the Nasal Cavity: Case Series," 2021, Head and Neck Pathology
  • "Genetic architecture distinguishes tinnitus from hearing loss," 2024, Nature Communications

Best Publications

  • Commensal bacteria regulate toll-like receptor 3-dependent inflammation after skin injury

    Yuping Lai;Anna Di Nardo;Anna Di Nardo;Teruaki Nakatsuji;Teruaki Nakatsuji;Anke Leichtle;Anke Leichtle

  • Development of the Mouse Inner Ear and Origin of Its Sensory Organs

    Hakim Morsli;Daniel Choo;Allen Ryan;Randy Johnson

  • Activation of TLR2 by a Small Molecule Produced by Staphylococcus epidermidis Increases Antimicrobial Defense against Bacterial Skin Infections

    Yuping Lai;Yuping Lai;Anna L. Cogen;Katherine A. Radek;Hyun Jeong Park;Hyun Jeong Park

  • Hearing sensitivity of the mongolian gerbil, Meriones unguiculatis

    Allen Ryan

  • Cellular mechanisms of noise-induced hearing loss

    Arwa Kurabi;Elizabeth M. Keithley;Gary D. Housley;Allen F. Ryan

  • Requirement for Brn-3.0 in differentiation and survival of sensory and motor neurons.

    Robert J. McEvilly;Linda Erkman;Lin Luo;Paul E. Sawchenko

  • Distribution of the P2X2 receptor subunit of the ATP-gated ion channels in the rat central nervous system.

    Refik Kanjhan;Gary D. Housley;Lucille D. Burton;David L. Christie

  • Mechanisms of sensorineural cell damage, death and survival in the cochlea

    Ann C. Y. Wong;Ann C. Y. Wong;Allen F. Ryan;Allen F. Ryan

  • N-glycolylneuraminic acid deficiency in mice: implications for human biology and evolution.

    Maria Hedlund;Pam Tangvoranuntakul;Hiromu Takematsu;Jeffrey M. Long

  • Temporary and Permanent Noise-induced Threshold Shifts: A Review of Basic and Clinical Observations.

    Allen F. Ryan;Sharon G. Kujawa;Tanisha Hammill;Colleen Le Prell

  • Expression of the P2X(2) receptor subunit of the ATP-gated ion channel in the cochlea: implications for sound transduction and auditory neurotransmission.

    Gary D. Housley;Refik Kanjhan;Nicholas P. Raybould;Denise Greenwood

  • A Forward Genetics Screen in Mice Identifies Recessive Deafness Traits and Reveals That Pejvakin Is Essential for Outer Hair Cell Function

    Martin Schwander;Anna Sczaniecka;Nicolas Grillet;Janice S. Bailey

  • The development of auditory function in the cochlea of the mongolian gerbil

    Nigel K. Woolf;Allen F. Ryan

  • Tonotopic organization in the central auditory pathway of the mongolian gerbil: A 2-deoxyglucose study

    Allen F. Ryan;Nigel K. Woolf;Frank R. Sharp

  • Rapid muscle-specific gene expression changes after a single bout of eccentric contractions in the mouse.

    Ilona A. Barash;Liby Mathew;Allen F. Ryan;Ju Chen

  • Mutation of the ATP-gated P2X2 receptor leads to progressive hearing loss and increased susceptibility to noise

    Denise Yan;Yan Zhu;Tom Walsh;Dinghua Xie

  • Fundamental immune mechanisms of the brain and inner ear.

    Jeffrey P. Harris;Allen F. Ryan

  • The relationship of local cerebral glucose utilization to optical density ratios.

    Frank R. Sharp;Thomas S. Kilduff;Sherzad Bzorgchami;H. Craig Heller

  • Ontogeny of neural discharge patterns in the ventral cochlear nucleus of the Mongolian gerbil

    Nigel K. Woolf;Allen F. Ryan

  • Spiral ganglion cell density in young and old gerbils

    Elizabeth M Keithley;Allen F Ryan;Allen F Ryan;Nigel K Woolf;Nigel K Woolf

Frequent Co-Authors

Stephen I. Wasserman
Stephen I. Wasserman University of California, San Diego
Gary D. Housley
Gary D. Housley University of New South Wales
Nicholas J. G. Webster
Nicholas J. G. Webster University of California, San Diego
Usha Menon
Usha Menon University College London
Ian Jacobs
Ian Jacobs University of New South Wales
Richard L. Lieber
Richard L. Lieber Northwestern University
Andrew Baird
Andrew Baird University of California, San Diego
Frank R. Sharp
Frank R. Sharp University of California, Davis
Peter R. Thorne
Peter R. Thorne University of Auckland
Juha Kere
Juha Kere Karolinska Institute

External Links

Personal website of Allen F. Ryan

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Allen F. Ryan

Gary D. Housley

Gary D. Housley

University of New South Wales

Publications: 69

Ajit Varki

Ajit Varki

University of California, San Diego

Publications: 61

Bernd Fritzsch

Bernd Fritzsch

University of Nebraska Medical Center

Publications: 59

Richard L. Gallo

Richard L. Gallo

University of California, San Diego

Publications: 53

Edwin W. Rubel

Edwin W. Rubel

University of Washington

Publications: 42

Geoffrey Burnstock

Geoffrey Burnstock

University College London

Publications: 40

Dan H. Sanes

Dan H. Sanes

New York University

Publications: 36

M. Charles Liberman

M. Charles Liberman

Massachusetts Eye and Ear Infirmary

Publications: 36

Yehoash Raphael

Yehoash Raphael

University of Michigan–Ann Arbor

Publications: 35

Jean-Luc Puel

Jean-Luc Puel

University of Montpellier

Publications: 35

Peter R. Thorne

Peter R. Thorne

University of Auckland

Publications: 35

Josef M. Miller

Josef M. Miller

University of Michigan–Ann Arbor

Publications: 34

Richard Salvi

Richard Salvi

University at Buffalo, State University of New York

Publications: 32

Matthew W. Kelley

Matthew W. Kelley

National Institutes of Health

Publications: 31

Jian Zuo

Jian Zuo

Creighton University

Publications: 31

Richard A. Altschuler

Richard A. Altschuler

University of Michigan–Ann Arbor

Publications: 31

Trending Scientists

Dusan S. Zrnic

Dusan S. Zrnic

National Oceanic and Atmospheric Administration

Joseph H. Beitchman

Joseph H. Beitchman

Centre for Addiction and Mental Health

B. Erazmus

B. Erazmus

University of Nantes

Roberto Lent

Roberto Lent

Federal University of Rio de Janeiro

Nenad Sestan

Nenad Sestan

Yale University

Daniel S. Barth

Daniel S. Barth

University of Colorado Boulder

Gunther Seckmeyer

Gunther Seckmeyer

University of Hannover

Wendell G. Yarbrough

Wendell G. Yarbrough

University of North Carolina at Chapel Hill

Gary A. Silverman

Gary A. Silverman

Washington University in St. Louis

Morten B. Andersen

Morten B. Andersen

Cardiff University

Darren J. Stefanyshyn

Darren J. Stefanyshyn

University of Calgary

Siu-Lai Chan

Siu-Lai Chan

Hong Kong Polytechnic University

Kejian Deng

Kejian Deng

South Central University for Nationalities

Michael H. Riordan

Michael H. Riordan

Columbia University

Reinhard W. Holl

Reinhard W. Holl

University of Ulm

Stefan Gold

Stefan Gold

Technical University of Munich

Related Biology and Biochemistry Rankings & Guides

2026 How to Become a Pathologist: Education, Salary, and Job Outlook

2026 How to Become a Pathologist: Education, Salary, and Job Outlook
2026 Easiest Online Healthcare Management Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions

2026 Easiest Online Healthcare Management Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions
2026 Radiology Technician vs. Respiratory Therapist Degree: Explaining the Difference

2026 Radiology Technician vs. Respiratory Therapist Degree: Explaining the Difference
2026 Are Online Occupational Therapy Degrees Respected by Employers?

2026 Are Online Occupational Therapy Degrees Respected by Employers?
2026 How to Verify Accreditation for Medical Billing & Coding Degree Programs

2026 How to Verify Accreditation for Medical Billing & Coding Degree Programs
2026 Fastest Online Healthcare Administration Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online Healthcare Administration Degree Programs You Can Finish in Under 2 Years
2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?

2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?
2026 Admission Requirements for Health Informatics Degree Programs

2026 Admission Requirements for Health Informatics Degree Programs
2026 Online Nutrition Degree Master's Programs That Accept FAFSA

2026 Online Nutrition Degree Master's Programs That Accept FAFSA
2026 Public Health vs. Healthcare Management Degree: Explaining the Difference

2026 Public Health vs. Healthcare Management Degree: Explaining the Difference
2026 How Fast Can You Get a Sports Science Degree Online?

2026 How Fast Can You Get a Sports Science Degree Online?
2026 Is Demand for Psychiatric Mental Health Nurse Practitioner Degree Graduates Growing or Declining?

2026 Is Demand for Psychiatric Mental Health Nurse Practitioner Degree Graduates Growing or Declining?
2026 Best Master’s in Genetics Programs

2026 Best Master’s in Genetics Programs
2026 Is a Master’s in Biotechnology Worth It?

2026 Is a Master’s in Biotechnology Worth It?
2026 How to Become a Public Health Inspector: Education, Salary, and Job Outlook

2026 How to Become a Public Health Inspector: Education, Salary, and Job Outlook
2026 How to Become an Orthotist or Prosthetist: Education, Salary, and Job Outlook

2026 How to Become an Orthotist or Prosthetist: Education, Salary, and Job Outlook
2026 Health Informatics vs. Nursing Informatics: Explaining the Difference

2026 Health Informatics vs. Nursing Informatics: Explaining the Difference
2026 Utilization Review Nurse Careers: Skills, Education, Salary & Job Outlook

2026 Utilization Review Nurse Careers: Skills, Education, Salary & Job Outlook
2026 How to Become an RNFA: Education, Salary, and Job Outlook

2026 How to Become an RNFA: Education, Salary, and Job Outlook
2026 Cheapest and Shortest Online Sports Science Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Sports Science Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 MSN vs. DNP: Explaining the Difference

2026 MSN vs. DNP: Explaining the Difference

Recently Published Articles

2026 Top Industries Hiring Accounting Graduates: Demand, Pay, and Growth Trends

2026 Top Industries Hiring Accounting Graduates: Demand, Pay, and Growth Trends
2026 Nurse Executive Leadership Career Hotspots: Cities With the Best Pay, Job Openings, and Growth

2026 Nurse Executive Leadership Career Hotspots: Cities With the Best Pay, Job Openings, and Growth
2026 Is a 2-Year Management Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs

2026 Is a 2-Year Management Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs
2026 Pediatric Nurse Practitioner Career Hotspots: Cities With the Best Pay, Job Openings, and Growth

2026 Pediatric Nurse Practitioner Career Hotspots: Cities With the Best Pay, Job Openings, and Growth
2026 Most Affordable Online Biology Degree Programs

2026 Most Affordable Online Biology Degree Programs
2026 Best Master’s in Art Therapy Programs

2026 Best Master’s in Art Therapy Programs
2026 Urban Planning Degrees Explained: Are They Classified as Professional Degrees?

2026 Urban Planning Degrees Explained: Are They Classified as Professional Degrees?
2026 Fastest Online History Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online History Degree Programs You Can Finish in Under 2 Years
2026 Best North Carolina Online MBA Degree Programs

2026 Best North Carolina Online MBA Degree Programs
2026 Self-Paced Online Finance Bachelor's Degree Programs

2026 Self-Paced Online Finance Bachelor's Degree Programs
2026 Best Accredited Online Political Science Bachelor's Degree Programs

2026 Best Accredited Online Political Science Bachelor's Degree Programs
2026 Top Industries Hiring Psychology Graduates: Demand, Pay, and Growth Trends

2026 Top Industries Hiring Psychology Graduates: Demand, Pay, and Growth Trends
2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Biology Program?

2026 Which Schools Offer Flexible Start-Anytime Enrollment for a Biology Program?
2026 Nurse Midwifery Degree Master's Programs Accepting Students Now

2026 Nurse Midwifery Degree Master's Programs Accepting Students Now
2026 How to Become an Arbitrator: Education, Salary, and Job Outlook

2026 How to Become an Arbitrator: Education, Salary, and Job Outlook
2026 Shortest Online Direct Entry MSN Programs For Non-Nurses

2026 Shortest Online Direct Entry MSN Programs For Non-Nurses
2026 Fastest Way to Become a Radiology Tech

2026 Fastest Way to Become a Radiology Tech
2026 Last-Minute Admissions: Online Social Work Advanced Standing Degree Master's Programs Still Accepting Students

2026 Last-Minute Admissions: Online Social Work Advanced Standing Degree Master's Programs Still Accepting Students
2026 Data Analytics Career Hotspots: Cities With the Best Pay, Job Openings, and Growth

2026 Data Analytics Career Hotspots: Cities With the Best Pay, Job Openings, and Growth
2026 Hybrid vs Fully Online History Bachelor's Degree Programs

2026 Hybrid vs Fully Online History Bachelor's Degree Programs
2026 Top Tips to Strengthen Your SLP Application (Experience, Essays, Shadowing)

2026 Top Tips to Strengthen Your SLP Application (Experience, Essays, Shadowing)