Stephen J. Ryan

18.1k total citations · 1 hit paper
331 papers, 13.2k citations indexed

About

Stephen J. Ryan is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Molecular Biology. According to data from OpenAlex, Stephen J. Ryan has authored 331 papers receiving a total of 13.2k indexed citations (citations by other indexed papers that have themselves been cited), including 164 papers in Ophthalmology, 100 papers in Radiology, Nuclear Medicine and Imaging and 90 papers in Molecular Biology. Recurrent topics in Stephen J. Ryan's work include Retinal Diseases and Treatments (80 papers), Retinal and Macular Surgery (79 papers) and Obstructive Sleep Apnea Research (71 papers). Stephen J. Ryan is often cited by papers focused on Retinal Diseases and Treatments (80 papers), Retinal and Macular Surgery (79 papers) and Obstructive Sleep Apnea Research (71 papers). Stephen J. Ryan collaborates with scholars based in United States, Ireland and Germany. Stephen J. Ryan's co-authors include Walter T. McNicholas, David R. Hinton, Cormac T. Taylor, Christine Spee, Philip E. Cleary, Nino Sorgente, Shikun He, A. Edward Maumenee, Ram Kannan and Brian D. Kent and has published in prestigious journals such as Journal of Biological Chemistry, Circulation and Journal of Neuroscience.

In The Last Decade

Stephen J. Ryan

319 papers receiving 12.6k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Selective Activation of Inflammatory Pathways by Intermittent Hypoxia in Obstructive Sleep Apnea Syndrome

2005 747 citations Stephen J. Ryan, Cormac T. Taylor et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Stephen J. Ryan	6.1k	3.7k	3.7k	3.6k	2.4k	331	13.2k
Lois E. H. Smith	5.9k 1.0×	5.7k 1.5×	7.7k 2.1×	844 0.2×	333 0.1×	218	16.6k
Peter Wiedemann	7.8k 1.3×	6.8k 1.8×	5.0k 1.3×	510 0.1×	300 0.1×	413	14.2k
Caroline C. W. Klaver	11.4k 1.9×	4.9k 1.3×	8.5k 2.3×	583 0.2×	104 0.0×	309	17.2k
Marco A. Zarbin	5.6k 0.9×	3.5k 0.9×	3.0k 0.8×	455 0.1×	183 0.1×	271	8.9k
Susumu Ishida	5.0k 0.8×	3.2k 0.9×	2.6k 0.7×	708 0.2×	102 0.0×	402	9.6k
Ann Hellström	2.0k 0.3×	1.7k 0.5×	5.1k 1.4×	282 0.1×	145 0.1×	265	10.4k
Rajendra S. Apte	3.4k 0.6×	2.9k 0.8×	2.2k 0.6×	569 0.2×	86 0.0×	156	8.6k
Joan W. Miller	11.4k 1.9×	6.8k 1.8×	6.7k 1.8×	399 0.1×	92 0.0×	383	16.6k
Chi Pui Pang	6.5k 1.1×	3.5k 0.9×	4.7k 1.3×	391 0.1×	90 0.0×	377	11.4k
Nagahisa Yoshimura	16.9k 2.8×	5.9k 1.6×	11.8k 3.1×	584 0.2×	106 0.0×	557	21.7k

Countries citing papers authored by Stephen J. Ryan

Since Specialization

Citations

This map shows the geographic impact of Stephen J. Ryan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Stephen J. Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Stephen J. Ryan more than expected).

Fields of papers citing papers by Stephen J. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephen J. Ryan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Stephen J. Ryan. The network helps show where Stephen J. Ryan may publish in the future.

Co-authorship network of co-authors of Stephen J. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of Stephen J. Ryan. A scholar is included among the top collaborators of Stephen J. Ryan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Stephen J. Ryan. Stephen J. Ryan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Vial, Guillaume, Emily O’Neill, Jonathan D. Dodd, et al.. (2025). Effect of Liraglutide on Intermittent Hypoxia‐Induced Metabolic Dysfunction: From Bench to Bedside. SPIRE - Sciences Po Institutional REpository. 35(2). e70152–e70152.

Randerath, Winfried, Sophia Schiza, Michael Arzt, et al.. (2025). European Respiratory Society and European Sleep Research Society statement on the treatment of central sleep apnoea with adaptive servo-ventilation. European Respiratory Journal. 66(2). 2500263–2500263.

Pack, Allan I, Ronald R. Grunstein, Babak Mokhlesi, et al.. (2025). What will the impact be of use of tirzepatide in patients with obstructive sleep apnea (OSA)?. SLEEP. 48(6). 2 indexed citations

Grote, Ludger, Haralampos Gouveris, Johan Verbraecken, et al.. (2025). Dose–response relationship between obstructive sleep apnoea severity and C-reactive protein levels: data from the European Sleep Apnoea Database. ERJ Open Research. 12(1). 707–2025.

Hogan, Andrew E., et al.. (2024). GLP‐1 therapy increases visceral adipose tissue metabolic activity: lessons from a randomized controlled trial in obstructive sleep apnea. Obesity. 32(11). 2077–2081. 3 indexed citations

Matthes, Sandhya, Marcel Treml, Ludger Grote, et al.. (2024). The modified Baveno classification for obstructive sleep apnoea: development and evaluation based on the ESADA database. European Respiratory Journal. 64(6). 2401371–2401371. 4 indexed citations

Ryan, Stephen J., et al.. (2023). 100 Prevalence of probable sarcopenia and associated factors in older adults undergoing Comprehensive Geriatric Assessment. Age and Ageing. 52(Supplement_3). 1 indexed citations

O’Riordan, Brian, Kenneth McDonald, Mark Ledwidge, et al.. (2023). Continuous Positive Airway Pressure But Not GLP1-Mediated Weight Loss Improves Early Cardiovascular Disease in Obstructive Sleep Apnea: A Randomized Proof-of-Concept Study. Annals of the American Thoracic Society. 21(3). 464–473. 26 indexed citations

Randerath, Winfried, Simon Herkenrath, Marcel Treml, et al.. (2021). Evaluation of a multicomponent grading system for obstructive sleep apnoea: the Baveno classification. ERJ Open Research. 7(1). 928–2020. 39 indexed citations

10.

Crinion, Sophie J., Brian D. Kent, Geraldine Nolan, et al.. (2021). Non-dipping nocturnal blood pressure correlates with obstructive sleep apnoea severity in normotensive subjects and may reverse with therapy. ERJ Open Research. 7(3). 338–2021. 11 indexed citations

11.

Staats, Richard, Sébastien Bailly, Stephen J. Ryan, et al.. (2021). Impact of temperature on obstructive sleep apnoea in three different climate zones of Europe: Data from the European Sleep Apnoea Database (ESADA). Journal of Sleep Research. 30(5). e13315–e13315. 6 indexed citations

12.

Doheny, Emer P., Madeleine M. Lowery, Audrey Russell, & Stephen J. Ryan. (2020). Estimation of respiration rate and sleeping position using a wearable accelerometer. PubMed. 2020. 4668–4671. 24 indexed citations

13.

Bonsignore, Maria R., Winfried Randerath, Sofia Schiza, et al.. (2020). European Respiratory Society statement on sleep apnoea, sleepiness and driving risk. European Respiratory Journal. 57(2). 2001272–2001272. 49 indexed citations

14.

Ryan, Stephen J., Eoin P. Cummins, Ramón Farré, et al.. (2020). Understanding the pathophysiological mechanisms of cardiometabolic complications in obstructive sleep apnoea: towards personalised treatment approaches. European Respiratory Journal. 56(2). 1902295–1902295. 43 indexed citations

15.

Fitzpatrick, Susan F., et al.. (2020). Mechanisms of intermittent hypoxia‐mediated macrophage activation – potential therapeutic targets for obstructive sleep apnoea. Journal of Sleep Research. 30(3). e13202–e13202. 23 indexed citations

16.

Pengo, Martino F., Andrea Faini, Ludger Grote, et al.. (2020). Impact of Sleep Apnea on Cardioembolic Risk in Patients With Atrial Fibrillation. Stroke. 52(2). 712–715. 12 indexed citations

17.

Ryan, Stephen J., Claire Arnaud, Susan F. Fitzpatrick, et al.. (2019). Adipose tissue as a key player in obstructive sleep apnoea. European Respiratory Review. 28(152). 190006–190006. 82 indexed citations

18.

Ryan, Stephen J.. (2016). Adipose tissue inflammation by intermittent hypoxia: mechanistic link between obstructive sleep apnoea and metabolic dysfunction. The Journal of Physiology. 595(8). 2423–2430. 122 indexed citations

19.

Ryan, Stephen J. & James Guthrie. (2008). Management education in Australia: relevance lost?. NOVA (University of Newcastle Australia). 1 indexed citations

20.

Burgess, John, et al.. (1997). Participation, equity and outcomes: enterprise bargaining in three female-dominated workplaces in Newcastle. NOVA (University of Newcastle Australia). 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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