Jeffrey O’Callaghan

691 total citations · 1 hit paper
16 papers, 406 citations indexed

About

Jeffrey O’Callaghan is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Molecular Biology. According to data from OpenAlex, Jeffrey O’Callaghan has authored 16 papers receiving a total of 406 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Ophthalmology, 7 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Molecular Biology. Recurrent topics in Jeffrey O’Callaghan's work include Glaucoma and retinal disorders (12 papers), Retinal Diseases and Treatments (5 papers) and Retinal Development and Disorders (3 papers). Jeffrey O’Callaghan is often cited by papers focused on Glaucoma and retinal disorders (12 papers), Retinal Diseases and Treatments (5 papers) and Retinal Development and Disorders (3 papers). Jeffrey O’Callaghan collaborates with scholars based in Ireland, United Kingdom and United States. Jeffrey O’Callaghan's co-authors include Matthew Campbell, Paul Cassidy, Pete Humphries, W. Daniel Stamer, Colm O’Brien, Eoin O’Keeffe, Bennett Thomson, Ruairi Connolly, Emma Connolly and Clíona Ní Cheallaigh and has published in prestigious journals such as Nature Neuroscience, Scientific Reports and International Journal of Molecular Sciences.

In The Last Decade

Jeffrey O’Callaghan

14 papers receiving 400 citations

Hit Papers

align trajectories

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.

Blood–brain barrier disruption and sustained systemic inflammation in individuals with long COVID-associated cognitive impairment

2024 178 citations Chris Greene, Ruairi Connolly et al. Nature Neuroscience profile →

Peers

Jeffrey O’Callaghan

OPHTH

NEURO

RNMI

NEURO

Paola Basilico Italy

Reid Longmuir United States

Laurent Kremer France

Jun Arai Japan

Beatriz Vidal‐Villegas Spain

Francesco Faraldi Italy

Clarissa Giannini Italy

Ahmet Z. Burakgazi United States

Gülfidan Bitirgen Türkiye

Arif O. Khan Saudi Arabia

Paola Basilico Italy

Jeffrey O’Callaghan

47 ×0.3

OPHTH

64 ×0.5

133 ×1.1

NEURO

45 ×0.5

RNMI

74 ×0.9

NEURO

Citations per year, relative to Jeffrey O’Callaghan Jeffrey O’Callaghan (= 1×) peers Paola Basilico

Countries citing papers authored by Jeffrey O’Callaghan

Since Specialization

Citations

This map shows the geographic impact of Jeffrey O’Callaghan'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 Jeffrey O’Callaghan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jeffrey O’Callaghan more than expected).

Fields of papers citing papers by Jeffrey O’Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jeffrey O’Callaghan. 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 Jeffrey O’Callaghan. The network helps show where Jeffrey O’Callaghan may publish in the future.

Co-authorship network of co-authors of Jeffrey O’Callaghan

This figure shows the co-authorship network connecting the top 25 collaborators of Jeffrey O’Callaghan. A scholar is included among the top collaborators of Jeffrey O’Callaghan 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 Jeffrey O’Callaghan. Jeffrey O’Callaghan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Connolly, Ruairi, Jeffrey O’Callaghan, Nicole Hanley, et al.. (2026). Blood-brain barrier disruption, traumatic encephalopathy, and cognitive decline in retired athletes. Science Translational Medicine. 18(841). eadu6037–eadu6037.

Sullivan, Graeme P., Kevin P. Byrne, Yasmina Hernandez-Santana, et al.. (2025). Endothelial IL-36 receptor activation promotes vascular stability to limit pathological microvessel permeability in the CNS. Cell Reports. 44(11). 116549–116549. 1 indexed citations

Greene, Chris, Ruairi Connolly, Aoife Laffan, et al.. (2024). Blood–brain barrier disruption and sustained systemic inflammation in individuals with long COVID-associated cognitive impairment. Nature Neuroscience. 27(3). 421–432. 178 indexed citations breakdown →

O’Callaghan, Jeffrey, et al.. (2024). Gene therapy for glaucoma: Targeting key mechanisms. Vision Research. 225. 108502–108502. 2 indexed citations

Hudson, Natalie, et al.. (2023). Near-Complete Drusen Resolution With Brolucizumab: A Mechanism for Proinflammatory Mediated Drusen Clearance?. Ophthalmic surgery, lasers & imaging retina. 54(6). 371–374.

O’Callaghan, Jeffrey, Conor P. Delaney, Joseph M. Sherwood, et al.. (2023). Matrix metalloproteinase-3 (MMP-3)–mediated gene therapy for glaucoma. Science Advances. 9(16). 21 indexed citations

Irnaten, Mustapha, A. Hopkins, Jeffrey O’Callaghan, et al.. (2022). Matrix Mechanotransduction via Yes-Associated Protein in Human Lamina Cribrosa Cells in Glaucoma. Investigative Ophthalmology & Visual Science. 63(1). 16–16. 16 indexed citations

Kelly, Ruth A., Kristin Perkumas, Matthew Campbell, et al.. (2021). Fibrotic Changes to Schlemm’s Canal Endothelial Cells in Glaucoma. International Journal of Molecular Sciences. 22(17). 9446–9446. 18 indexed citations

Cassidy, Paul, Ruth A. Kelly, Ester Reina‐Torres, et al.. (2020). siRNA targeting Schlemm’s canal endothelial tight junctions enhances outflow facility and reduces IOP in a steroid-induced OHT rodent model. Molecular Therapy — Methods & Clinical Development. 20. 86–94. 13 indexed citations

10.

Reina‐Torres, Ester, Jacques Bertrand, Jeffrey O’Callaghan, et al.. (2019). Reduced humidity experienced by mice in vivo coincides with reduced outflow facility measured ex vivo. Experimental Eye Research. 186. 107745–107745. 5 indexed citations

11.

O’Callaghan, Jeffrey, Matthew Campbell, & Peter Humphries. (2019). Intracameral Delivery of AAV to Corneal Endothelium for Expression of Secretory Proteins. Methods in molecular biology. 1950. 263–270. 3 indexed citations

12.

O’Callaghan, Jeffrey, Paul Cassidy, Joseph M. Sherwood, et al.. (2017). Therapeutic potential of AAV-mediated MMP-3 secretion from corneal endothelium in treating glaucoma. Human Molecular Genetics. 26(7). 1230–1246. 66 indexed citations

13.

Campbell, Matthew, et al.. (2017). Manipulating ocular endothelial tight junctions: Applications in treatment of retinal disease pathology and ocular hypertension. Progress in Retinal and Eye Research. 62. 120–133. 15 indexed citations

14.

O’Callaghan, Jeffrey, Paul Cassidy, & Pete Humphries. (2017). Open-angle glaucoma: therapeutically targeting the extracellular matrix of the conventional outflow pathway. Expert Opinion on Therapeutic Targets. 21(11). 1037–1050. 36 indexed citations

15.

Tam, Lawrence C. S., Ester Reina‐Torres, Joseph M. Sherwood, et al.. (2017). Enhancement of Outflow Facility in the Murine Eye by Targeting Selected Tight-Junctions of Schlemm’s Canal Endothelia. Scientific Reports. 7(1). 40717–40717. 24 indexed citations

16.

O’Callaghan, Jeffrey, et al.. (1977). An unusual flexor of the fifth finger. Cells Tissues Organs. 98(4). 376–379. 8 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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