Christopher A. O’Callaghan

12.9k total citations · 2 hit papers
115 papers, 9.2k citations indexed

About

Christopher A. O’Callaghan is a scholar working on Immunology, Nephrology and Epidemiology. According to data from OpenAlex, Christopher A. O’Callaghan has authored 115 papers receiving a total of 9.2k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Immunology, 23 papers in Nephrology and 19 papers in Epidemiology. Recurrent topics in Christopher A. O’Callaghan's work include Immune Cell Function and Interaction (35 papers), T-cell and B-cell Immunology (22 papers) and Chronic Kidney Disease and Diabetes (12 papers). Christopher A. O’Callaghan is often cited by papers focused on Immune Cell Function and Interaction (35 papers), T-cell and B-cell Immunology (22 papers) and Chronic Kidney Disease and Diabetes (12 papers). Christopher A. O’Callaghan collaborates with scholars based in United Kingdom, United States and Germany. Christopher A. O’Callaghan's co-authors include Daniel Lasserson, Richard Hobbs, Jennifer Hirst, Nathan R. Hill, Jason Oke, Samuel Fatoba, Andrew J. McMichael, Rachel Allen, Graham S. Ogg and Margaret Callan and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nucleic Acids Research and Journal of Biological Chemistry.

In The Last Decade

Christopher A. O’Callaghan

110 papers receiving 9.0k 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.

Global Prevalence of Chronic Kidney Disease – A Systematic Review and Meta-Analysis

2016 2.6k citations Nathan R. Hill, Samuel Fatoba et al. PLoS ONE profile →
Direct Visualization of Antigen-specific CD8+T Cells during the Primary Immune Response to Epstein-Barr Virus In Vivo

1998 737 citations Margaret Callan, Graham S. Ogg et al. The Journal of Experimental Medicine profile →

Peers

Countries citing papers authored by Christopher A. O’Callaghan

Since Specialization

Citations

This map shows the geographic impact of Christopher A. 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 Christopher A. 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 Christopher A. O’Callaghan more than expected).

Fields of papers citing papers by Christopher A. O’Callaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christopher A. O’Callaghan

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Integrating and Defragmenting Multi-Specialty Care for People With Multiple Long-Term Conditions 2025 ·British Journal of Hospital Medicine ·Christopher A. O’Callaghan, Jennifer J. Rayner, Gaya Thanabalasingham, (unknown), Alistair Lumb, Rustam Rea, (unknown), Michael E. Reschen	0
2	Ox-LDL induces a non-inflammatory response enriched for coronary artery disease risk in human endothelial cells 2025 ·Scientific Reports ·Jiahao Jiang, (unknown), Anil Chalisey, (unknown), Thomas A. Agbaedeng, Christopher A. O’Callaghan	1
3	A Novel Macrophage Subpopulation Conveys Increased Genetic Risk of Coronary Artery Disease 2024 ·Circulation Research ·Jiahao Jiang, (unknown), Thomas A. Agbaedeng, (unknown), (unknown), James Bancroft, Esther Ng, Michael E. Reschen, Lucy J. Davison, Christopher A. O’Callaghan	9
4	Dietary salt intake in chronic kidney disease. Recent studies and their practical implications 2024 ·Polskie Archiwum Medycyny Wewnętrznej ·Christopher A. O’Callaghan	5
5	Quality of life in older adults with chronic kidney disease and transient changes in renal function: Findings from the Oxford Renal cohort 2022 ·PLoS ONE ·(unknown), José M Ordóñez-Mena, Yaling Yang, Jane Wolstenholme, Stavros Petrou, Clare Taylor, Christopher A. O’Callaghan, Simon Fraser, Maarten W. Taal, Richard J. McManus, Jennifer Hirst, Richard Hobbs	2
6	Extracellular succinate hyperpolarizes M2 macrophages through SUCNR1/GPR91-mediated Gq signaling 2021 ·Cell Reports ·Mette Trauelsen, (unknown), Da Lin, (unknown), Billy Breton, Anna Sofie Husted, Siv A. Hjorth, Asuka Inoue, Thomas M. Frimurer, Michel Bouvier, Christopher A. O’Callaghan, Thue W. Schwartz	104
7	The Canine POMC Gene, Obesity in Labrador Retrievers and Susceptibility to Diabetes Mellitus 2017 ·Journal of Veterinary Internal Medicine ·Lucy J. Davison, Angela Holder, Briän Catchpole, Christopher A. O’Callaghan	11
8	Analysis of Ebola Virus Entry Into Macrophages 2015 ·The Journal of Infectious Diseases ·(unknown), Nadine Biedenkopf, Anne Babler, Willi Jahnen‐Dechent, Christina B. Karsten, Kerstin Gnirß, Heike Schneider, Florian Wrensch, Christopher A. O’Callaghan, Stephanie Bertram, Georg Herrler, Stephan Becker, Stefan Pöhlmann, Heike Hofmann-Winkler	43
9	The Oxford Renal (OxRen) cross-sectional study of chronic kidney disease in the UK 2013 ·BMJ Open ·Nathan R. Hill, Daniel Lasserson, Samuel Fatoba, Christopher A. O’Callaghan, Christopher W. Pugh, Rafael Perera, Brian Shine, Ben Thompson, Jane Wolstenholme, Richard J. McManus, Richard Hobbs	5
10	Structural Flexibility of the Macrophage Dengue Virus Receptor CLEC5A 2011 ·Journal of Biological Chemistry ·Aleksandra A. Watson, Andrey A. Lebedev, Benjamin A. Hall, Angharad E. Fenton-May, Alexei A. Vagin, Wanwisa Dejnirattisai, James H. Felce, Juthathip Mongkolsapaya, Angelina S. Palma, Yan Liu, Ten Feizi, Gavin Screaton, Garib N. Murshudov, Christopher A. O’Callaghan	42
11	Crystallization and X-ray diffraction analysis of human CLEC5A (MDL-1), a dengue virus receptor 2009 ·Acta Crystallographica Section F Structural Biology and Crystallization Communications ·Aleksandra A. Watson, Christopher A. O’Callaghan	7
12	Regulation of ligands for the activating receptor NKG2D 2007 ·Immunology ·Anita R. Mistry, Christopher A. O’Callaghan	118
13	The structure of the human allo‐ligand HLA‐B3501 in complex with a cytochrome p450 peptide: Steric hindrance influences TCR allo‐recognition 2006 ·European Journal of Immunology* ·Christopher S. Hourigan, Maria Harkiolaki, (unknown), John I. Bell, E. Yvonne Jones, Christopher A. O’Callaghan	12
14	Cutting Edge: The Minor Histocompatibility Antigen H60 Peptide Interacts with Both H-2Kb and NKG2D 2002 ·The Journal of Immunology ·Adelheid Cerwenka, Christopher A. O’Callaghan, Jessica A. Hamerman, Rajwardhan Yadav, (unknown), Derry C. Roopenian, Sebastian Joyce, Lewis L. Lanier	24
15	Direct visualisation of cytomegalovirus-specific cd8+ t cells in renal transplant recipients 2002 ·Transplantation Proceedings ·Rachel Hilton, Roseanna Hargreaves, Steven H. Sacks, Christopher A. O’Callaghan	1
16	Molecular Competition for NKG2D 2001 ·Immunity ·Christopher A. O’Callaghan, Adelheid Cerwenka, Benjamin E. Willcox, Lewis L. Lanier, Pamela J. Björkman	95
17	Oligoclonal Expansions of CD8+ T Cells in Chronic HIV Infection Are Antigen Specific 1998 ·The Journal of Experimental Medicine ·Jamie Wilson, Graham S. Ogg, Rachel Allen, Philip Goulder, Anthony D. Kelleher, Andrew K. Sewell, Christopher A. O’Callaghan, Sarah Rowland‐Jones, Margaret Callan, Andrew J. McMichael	135
18	Production, crystallization, and preliminary X‐ray analysis of the human MHC class Ib molecule HLA‐E 1998 ·Protein Science ·Christopher A. O’Callaghan, Andrew J. McMichael, (unknown), Charles D. Blundell, Bent K. Jakobsen, (unknown), José R. Tormo, David I. Stuart, E. Yvonne Jones	28
19	Characteristics of idiopathic membranous nephropathy in older patients. 1997 ·Kidney International ·Christopher A. O’Callaghan, Jackie Hicks, Steven H. Sacks, J S Cameron	1
20	Combined structural and immunological refinement of HIV‐1 HLA‐B8‐restricted cytotoxic T lymphocyte epitopes 1997 ·European Journal of Immunology ·Philip Goulder, Scott W. Reid, David A. Price, Christopher A. O’Callaghan, Andrew J. McMichael, Rodney E. Phillips, E. Yvonne Jones	26

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.

Explore authors with similar magnitude of impact