Karen O’Sullivan

4.0k total citations · 1 hit paper
3 papers, 1.1k citations indexed

About

Karen O’Sullivan is a scholar working on Cellular and Molecular Neuroscience, Neurology and Infectious Diseases. According to data from OpenAlex, Karen O’Sullivan has authored 3 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 2 papers in Cellular and Molecular Neuroscience, 2 papers in Neurology and 1 paper in Infectious Diseases. Recurrent topics in Karen O’Sullivan's work include Neurological disorders and treatments (2 papers), Parkinson's Disease Mechanisms and Treatments (2 papers) and Nosocomial Infections in ICU (1 paper). Karen O’Sullivan is often cited by papers focused on Neurological disorders and treatments (2 papers), Parkinson's Disease Mechanisms and Treatments (2 papers) and Nosocomial Infections in ICU (1 paper). Karen O’Sullivan collaborates with scholars based in United Kingdom, United States and Canada. Karen O’Sullivan's co-authors include Peter Heywood, Steven S. Gill, Nikunj K. Patel, Martin Bunnage, Renée J. McCarter, Clive N. Svendsen, David J. Brooks, Gary Hotton, Seth Love and Alexander Iribarne and has published in prestigious journals such as Nature Medicine, Journal of Thoracic and Cardiovascular Surgery and Stereotactic and Functional Neurosurgery.

In The Last Decade

Karen O’Sullivan

3 papers receiving 1.0k 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.

Direct brain infusion of glial cell line–derived neurotrophic factor in Parkinson disease

2003 990 citations Steven S. Gill, Nikunj K. Patel et al. Nature Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Karen O’Sullivan United Kingdom	3	757	474	295	218	137	3	1.1k
Martin Bunnage United Kingdom	3	950 1.3×	540 1.1×	387 1.3×	293 1.3×	177 1.3×	5	1.3k
Krzysztof S. Bankiewicz United States	17	574 0.8×	488 1.0×	264 0.9×	168 0.8×	90 0.7×	27	1.1k
Zhiming Zhang China	11	656 0.9×	291 0.6×	238 0.8×	267 1.2×	128 0.9×	24	1.1k
Oleg V. Kopyov United States	17	630 0.8×	582 1.2×	426 1.4×	143 0.7×	57 0.4×	36	1.1k
Peyman Pakzaban United States	13	602 0.8×	274 0.6×	407 1.4×	358 1.6×	47 0.3×	25	1.1k
C Bentlage Sweden	9	909 1.2×	543 1.1×	425 1.4×	470 2.2×	91 0.7×	9	1.2k
Kazumichi Yamada Japan	19	416 0.5×	652 1.4×	125 0.4×	80 0.4×	43 0.3×	69	1.0k
P. Brundin Sweden	10	631 0.8×	211 0.4×	469 1.6×	346 1.6×	58 0.4×	12	948
Yevgeniya A. Mironova United States	14	549 0.7×	125 0.3×	378 1.3×	350 1.6×	56 0.4×	17	1.1k
Bartley D. Mitchell United States	13	382 0.5×	148 0.3×	249 0.8×	554 2.5×	112 0.8×	23	990

Countries citing papers authored by Karen O’Sullivan

Since Specialization

Citations

This map shows the geographic impact of Karen 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 Karen 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 Karen O’Sullivan more than expected).

Fields of papers citing papers by Karen O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of Karen O’Sullivan. A scholar is included among the top collaborators of Karen 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 Karen O’Sullivan. Karen 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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3 of 3 papers shown

1.

Kirkwood, Katherine, Brian C. Gulack, Alexander Iribarne, et al.. (2017). A multi-institutional cohort study confirming the risks of Clostridium difficile infection associated with prolonged antibiotic prophylaxis. Journal of Thoracic and Cardiovascular Surgery. 155(2). 670–678.e1. 14 indexed citations

2.

Gill, Steven S., Nikunj K. Patel, Gary Hotton, et al.. (2003). Direct brain infusion of glial cell line–derived neurotrophic factor in Parkinson disease. Nature Medicine. 9(5). 589–595. 990 indexed citations breakdown →

3.

Patel, Nikunj K., Peter Heywood, Karen O’Sullivan, Seth Love, & Steven S. Gill. (2002). MRI-Directed Subthalamic Nucleus Surgery for Parkinson’s Disease. Stereotactic and Functional Neurosurgery. 78(3-4). 132–145. 55 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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