World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
79
Citations
18197
World Ranking
17747
National Ranking
8856

Research.com Recognitions

  • 1995 - Member of the National Academy of Medicine (NAM)

Overview

Stephen J. Ryan was affiliated with the University of Southern California in the United States. Their research primarily focused on medicine, with significant contributions to subfields such as physiology, pulmonary and respiratory medicine, endocrine and autonomic systems, experimental and cognitive psychology, and surgery.

Their work spanned a variety of topics, including obstructive sleep apnea research, neuroscience of respiration and sleep, tracheal and airway disorders, respiratory support and mechanisms, sleep and related disorders, chronic obstructive pulmonary disease (COPD) research, and sleep and wakefulness research.

They published extensively, with frequent appearances in several key venues:

  • European Respiratory Journal
  • ERJ Open Research
  • Journal of Sleep Research
  • Sleep Medicine
  • Age and Ageing

Their recent papers included the following works:

  • "Remote monitoring of oxygen saturation in individuals with COVID-19 pneumonia," 2020, European Respiratory Journal
  • "European Respiratory Society statement on sleep apnoea, sleepiness and driving risk," 2020, European Respiratory Journal
  • "Understanding the pathophysiological mechanisms of cardiometabolic complications in obstructive sleep apnoea: towards personalised treatment approaches," 2020, European Respiratory Journal
  • "Evaluation of a multicomponent grading system for obstructive sleep apnoea: the Baveno classification," 2021, ERJ Open Research
  • "Continuous Positive Airway Pressure but Not GLP1-mediated Weight Loss Improves Early Cardiovascular Disease in Obstructive Sleep Apnea: A Randomized Proof-of-Concept Study," 2023, Annals of the American Thoracic Society

Co-authorship was a significant aspect of their research. Frequent collaborators included Ludger Grote, Jean-Louis Pépin, Özen K. Başoğlu, Jan Hedner, and Sophia Schiza.

Stephen J. Ryan was recognized as a member of the National Academy of Medicine (NAM) since 1995.

Best Publications

  • Birdshot retinochoroidopathy associated with HLA-A29 antigen and immune responsiveness to retinal S-antigen.

    Robert B. Nussenblatt;Kamal K. Mittal;Stephen Ryan;W. Richard Green

  • Postoperative intraocular pressure abnormalities in the Silicone Study. Silicone Study Report 4.

    Charles C. Barr;Mei Ying Lai;John S. Lean;Kathryn L.P. Linton

  • Post-traumatic proliferative vitreoretinopathy. The epidemiologic profile, onset, risk factors, and visual outcome.

    Jose A. Cardillo;J. Timothy Stout;Laurie LaBree;Stanley P. Azen

  • Immunofluorescent studies of fibronectin and laminin in the human eye.

    T Kohno;N Sorgente;T Ishibashi;R Goodnight

  • The development of an experimental model of subretinal neovascularization in disciform macular degeneration.

    S J Ryan

  • Subretinal Neovascularization: Natural History of an Experimental Model

    Stephen J. Ryan

  • A protocol for the culture and differentiation of highly polarized human retinal pigment epithelial cells

    Shozo Sonoda;Christine Spee;Ernesto Barron;Stephen J Ryan

  • The role of retinal pigment epithelium in the involution of subretinal neovascularization.

    H Miller;B Miller;S J Ryan

  • Effects of Intravitreal Administration of Steroids on Experimental Subretinal Neovascularization in the Subhuman Primate

    Tatsuro Ishibashi;Koichiro Miki;Nino Sorgente;Randi Patterson

  • Peroxisome proliferator-activated receptor-gamma ligands inhibit choroidal neovascularization.

    Toshinori Murata;Shikun He;Masanori Hangai;Tatsuro Ishibashi

  • Advanced glycation end products in age-related macular degeneration

    Tatsuro Ishibashi;Toshinori Murata;Masanori Hangai;Ryoji Nagai

  • Vitrectomy with silicone oil or long-acting gas in eyes with severe proliferative vitreoretinopathy: results of additional and long-term follow-up. Silicone Study report 11.

    Gary W. Abrams;Stanley P. Azen;Brooks W. McCuen;Harry W. Flynn

  • Method of Production and Natural History of Experimental Posterior Penetrating eye Injury in the Rhesus Monkey

    Philip E. Cleary;Stephen J. Ryan

  • The effects of silicone oil removal. Silicone Study Report 6

    William L. Hutton;Stanley P. Azen;Mark S. Blumenkranz;Mei-Ying Lai

  • αB Crystallin Is Apically Secreted within Exosomes by Polarized Human Retinal Pigment Epithelium and Provides Neuroprotection to Adjacent Cells

    Parameswaran G. Sreekumar;Ram Kannan;Mizuki Kitamura;Christine Spee

  • Novel growth factors involved in the pathogenesis of proliferative vitreoretinopathy

    D R Hinton;S He;M L Jin;E Barron

  • The pathogenesis of choroidal neovascularization in patients with age-related macular degeneration.

    Peter A. Campochiaro;Paul Soloway;Stephen J. Ryan;Joan W. Miller

  • Histology of wound, vitreous, and retina in experimental posterior penetrating eye injury in the rhesus monkey.

    Philip E. Cleary;Stephen J. Ryan

  • Ocular trauma in an urban population. Review of 1132 cases.

    Peter E. Liggett;Keith J. Pince;William Barlow;Michael Ragen

  • Matrix Metalloproteinase-9-Dependent Exposure of a Cryptic Migratory Control Site in Collagen is Required before Retinal Angiogenesis

    Masanori Hangai;Norihiko Kitaya;Jingsong Xu;Candy K. Chan

Frequent Co-Authors

David R. Hinton
David R. Hinton University of Southern California
Stanley P. Azen
Stanley P. Azen University of Southern California
Tatsuro Ishibashi
Tatsuro Ishibashi Kyushu University
Marek Malik
Marek Malik Imperial College London
Peter Wiedemann
Peter Wiedemann Leipzig University
Parkash S. Gill
Parkash S. Gill University of Southern California
W. Richard Green
W. Richard Green Johns Hopkins University
Harry W. Flynn
Harry W. Flynn University of Miami
W. French Anderson
W. French Anderson University of Southern California
Florence M. Hofman
Florence M. Hofman University of Southern California

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