John O’Sullivan

11.0k total citations · 2 hit papers
225 papers, 5.5k citations indexed

About

John O’Sullivan is a scholar working on Molecular Biology, Cardiology and Cardiovascular Medicine and Epidemiology. According to data from OpenAlex, John O’Sullivan has authored 225 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Molecular Biology, 59 papers in Cardiology and Cardiovascular Medicine and 53 papers in Epidemiology. Recurrent topics in John O’Sullivan's work include Congenital Heart Disease Studies (27 papers), Cardiovascular Function and Risk Factors (20 papers) and Diet and metabolism studies (17 papers). John O’Sullivan is often cited by papers focused on Congenital Heart Disease Studies (27 papers), Cardiovascular Function and Risk Factors (20 papers) and Diet and metabolism studies (17 papers). John O’Sullivan collaborates with scholars based in United Kingdom, Australia and Ireland. John O’Sullivan's co-authors include Christopher Wren, Yen Chin Koay, C.E.J. Van Rensburg, L.D. Burke, Ronald Anderson, Catherine Wright, M. L. Conalty, Natalia Jarzebska, Roman N. Rodionov and Gisela K. Jooné and has published in prestigious journals such as Nature, Circulation and Nature Communications.

In The Last Decade

John O’Sullivan

216 papers receiving 5.3k 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.

Gut microbiota impact on the peripheral immune response in non-alcoholic fatty liver disease related hepatocellular carcinoma

2021 331 citations Yen Chin Koay, John O’Sullivan et al. Nature Communications profile →
Indole-3-Propionic Acid Protects Against Heart Failure With Preserved Ejection Fraction

2024 63 citations Yu-Chen Wang, Yen Chin Koay et al. Circulation Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
John O’Sullivan United Kingdom	40	1.6k	1.6k	1.2k	1.1k	683	225	5.5k
Brian J.G. Pereira United States	59	1.2k 0.8×	2.1k 1.3×	718 0.6×	1.4k 1.3×	1.0k 1.5×	223	11.1k
Christopher P. Price United Kingdom	39	1.1k 0.7×	612 0.4×	1.1k 0.9×	602 0.6×	765 1.1×	166	6.5k
E. Albert Reece United States	54	1.5k 0.9×	1.2k 0.7×	517 0.4×	2.3k 2.1×	479 0.7×	294	11.2k
Katharina Rentsch Switzerland	46	1.4k 0.9×	535 0.3×	676 0.6×	1.2k 1.1×	419 0.6×	186	6.3k
Jung Tak Park South Korea	49	2.4k 1.5×	1.2k 0.8×	1.2k 1.0×	1.5k 1.4×	1.3k 1.9×	576	11.0k
Harvey J. Cohen United States	51	2.4k 1.5×	883 0.6×	770 0.7×	675 0.6×	1.1k 1.7×	181	10.3k
Helen R. Griffiths United Kingdom	58	3.0k 1.8×	1.4k 0.9×	471 0.4×	1.1k 1.0×	587 0.9×	267	9.6k
Jane E. Freedman United States	54	3.3k 2.0×	983 0.6×	2.2k 1.8×	1.0k 0.9×	636 0.9×	175	10.2k
Diana Faulds New Zealand	63	2.0k 1.3×	1.6k 1.0×	779 0.7×	1.5k 1.4×	1.0k 1.5×	122	10.4k
Ellis J. Neufeld United States	58	2.1k 1.3×	685 0.4×	637 0.5×	1.1k 1.0×	550 0.8×	241	10.4k

Countries citing papers authored by John O’Sullivan

Since Specialization

Citations

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

Fields of papers citing papers by John O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John O’Sullivan

This figure shows the co-authorship network connecting the top 25 collaborators of John O’Sullivan. A scholar is included among the top collaborators of John O’Sullivan 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 John O’Sullivan. John O’Sullivan 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

O’Sullivan, John, Giovanni Guglielmi, Eugene Slaughter, et al.. (2025). Plasma nicotinamide adenine dinucleotide pathway depletion is linked to diastolic dysfunction in patients with advanced chronic liver disease. Cardiovascular Research. 121(15). 2296–2298.

Koay, Yen Chin, Yang Cao, Xiaosuo Wang, et al.. (2025). The Heart Has Intrinsic Ketogenic Capacity that Mediates NAD ⁺ Therapy in HFpEF. Circulation Research. 136(10). 1113–1130. 2 indexed citations

Zhang, Yunwei, Dylan Harney, Holly P. McEwen, et al.. (2025). Left ventricular myocardial molecular profile of human diabetic ischaemic cardiomyopathy. EMBO Molecular Medicine. 17(9). 2483–2524. 1 indexed citations

Li, Amy, Mengbo Li, Yen Chin Koay, et al.. (2024). Myocardial Posttranscriptional Landscape in Peripartum Cardiomyopathy. Circulation Heart Failure. 17(12). e011725–e011725. 2 indexed citations

Li, Mengbo, Benjamin L. Parker, Yen Chin Koay, et al.. (2024). Proteomic and metabolomic analyses of the human adult myocardium reveal ventricle-specific regulation in end-stage cardiomyopathies. Communications Biology. 7(1). 1666–1666. 2 indexed citations

Wang, Yu-Chen, Yen Chin Koay, Calvin Pan, et al.. (2024). Indole-3-Propionic Acid Protects Against Heart Failure With Preserved Ejection Fraction. Circulation Research. 134(4). 371–389. 63 indexed citations breakdown →

Wang, Nelson, et al.. (2024). Echocardiographic Predictors of Cardiovascular Outcome in Heart Failure with Preserved Ejection Fraction. European Journal of Heart Failure. 26(8). 1778–1787. 9 indexed citations

Rodionov, Roman N., Natalia Jarzebska, Yen Chin Koay, et al.. (2024). Symmetric dimethylguanidino valeric acid, a novel single biomarker of hepatic steatosis. iScience. 27(12). 111366–111366. 1 indexed citations

Johnson, Anna, David Crossland, John O’Sullivan, et al.. (2022). Evolving Approach in Hypoplastic Left Heart Syndrome With Restrictive and Intact Septum. World Journal for Pediatric and Congenital Heart Surgery. 13(3). 311–320. 3 indexed citations

10.

Vernon, Stephen T., Owen Tang, Tai-Yun Kim, et al.. (2021). Metabolic Signatures in Coronary Artery Disease: Results from the BioHEART-CT Study. Cells. 10(5). 980–980. 17 indexed citations

11.

Stocks, Ben, Stephen P. Ashcroft, Sophie Joanisse, et al.. (2021). Nicotinamide riboside supplementation does not alter whole‐body or skeletal muscle metabolic responses to a single bout of endurance exercise. The Journal of Physiology. 599(5). 1513–1531. 36 indexed citations

12.

Kim, Tai-Yun, Owen Tang, Stephen T. Vernon, et al.. (2021). A hierarchical approach to removal of unwanted variation for large-scale metabolomics data. Nature Communications. 12(1). 4992–4992. 28 indexed citations

13.

Li, Mengbo, Benjamin L. Parker, Benjamin Hunter, et al.. (2020). Core functional nodes and sex-specific pathways in human ischaemic and dilated cardiomyopathy. Nature Communications. 11(1). 2843–2843. 57 indexed citations

14.

Ribeiro, Rosilene V., Samantha M. Solon‐Biet, Tamara Pulpitel, et al.. (2019). Of Older Mice and Men: Branched-Chain Amino Acids and Body Composition. Nutrients. 11(8). 1882–1882. 21 indexed citations

15.

O’Sullivan, John, Graham Derrick, & Joanne Gray. (2005). Blood Pressure After Cardiac Transplantation in Childhood. The Journal of Heart and Lung Transplantation. 24(7). 891–895. 15 indexed citations

16.

Rahi, Jugnoo S., Michael Eckstein, John O’Sullivan, Allen Foster, & Clare Gilbert. (1997). Retinopathy of prematurity in middle-income countries. American Journal of Ophthalmology. 124(5). 720–720. 33 indexed citations

17.

O’Sullivan, John, et al.. (1996). Infective endocarditis in children following dental extraction and appropriate antibiotic prophylaxis. BDJ. 181(2). 64–65. 9 indexed citations

18.

O’Sullivan, John, et al.. (1990). Relation of angiographically defined coronary artery disease to serum lipoprotein levels. Clinical Cardiology. 13(12). 841–844. 4 indexed citations

19.

Barr, Wallace, G.A. Edelstyn, David Förster, et al.. (1972). Treatment for ovarian carcinoma.. BMJ. 1(5802). 749.4–750. 2 indexed citations

20.

O’Sullivan, John. (1963). THE HAZARDS ASSOCIATED WITH MULTIPARITY. BJOG An International Journal of Obstetrics & Gynaecology. 70(1). 158–164. 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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