Órla O’Sullivan

24.6k total citations · 9 hit papers
147 papers, 14.2k citations indexed

About

Órla O’Sullivan is a scholar working on Molecular Biology, Food Science and Physiology. According to data from OpenAlex, Órla O’Sullivan has authored 147 papers receiving a total of 14.2k indexed citations (citations by other indexed papers that have themselves been cited), including 113 papers in Molecular Biology, 57 papers in Food Science and 26 papers in Physiology. Recurrent topics in Órla O’Sullivan's work include Gut microbiota and health (86 papers), Probiotics and Fermented Foods (55 papers) and Diet and metabolism studies (25 papers). Órla O’Sullivan is often cited by papers focused on Gut microbiota and health (86 papers), Probiotics and Fermented Foods (55 papers) and Diet and metabolism studies (25 papers). Órla O’Sullivan collaborates with scholars based in Ireland, United Kingdom and United States. Órla O’Sullivan's co-authors include Paul D. Cotter, R. Paul Ross, Catherine Stanton, Paul W. O’Toole, Fergus Shanahan, Colin Hill, Gerald F. Fitzgerald, Fiona Crispie, Marcus J. Claesson and John F. Cryan and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nucleic Acids Research and Environmental Science & Technology.

In The Last Decade

Órla O’Sullivan

144 papers receiving 13.9k citations

Hit Papers

5 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.

Exercise and associated dietary extremes impact on gut microbial diversity

2014 1.0k citations Siobhan F. Clarke, Eileen F. Murphy et al. Gut profile →
Composition and energy harvesting capacity of the gut microbiota: relationship to diet, obesity and time in mouse models

2010 766 citations Eileen F. Murphy, Paul D. Cotter et al. Gut profile →
Comparison of two next-generation sequencing technologies for resolving highly complex microbiota composition using tandem variable 16S rRNA gene regions

2010 723 citations Marcus J. Claesson, Órla O’Sullivan et al. profile →
Comparative Analysis of Pyrosequencing and a Phylogenetic Microarray for Exploring Microbial Community Structures in the Human Distal Intestine

2009 723 citations Marcus J. Claesson, Órla O’Sullivan et al. profile →
The complex microbiota of raw milk

2013 661 citations Órla O’Sullivan, Catherine Stanton et al. profile →
Gut microbiota depletion from early adolescence in mice: Implications for brain and behaviour

2015 596 citations Gerard Clarke, Órla O’Sullivan et al. profile →
Short‐chain fatty acids: microbial metabolites that alleviate stress‐induced brain–gut axis alterations

2018 571 citations Marcel van de Wouw, Marcus Boehme et al. The Journal of Physiology profile →
The microbiome of professional athletes differs from that of more sedentary subjects in composition and particularly at the functional metabolic level

2017 462 citations Owen Cronin, Michael G. Molloy et al. Gut profile →
Fermented foods, their microbiome and its potential in boosting human health

2024 50 citations Paul D. Cotter, Órla O’Sullivan et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Órla O’Sullivan Ireland	59	9.5k	4.0k	3.3k	1.6k	1.4k	147	14.2k
Liping Zhao China	58	11.0k 1.2×	2.1k 0.5×	4.1k 1.3×	1.9k 1.2×	1.2k 0.9×	242	16.1k
Omry Koren Israel	49	11.6k 1.2×	1.7k 0.4×	3.5k 1.1×	2.5k 1.6×	1.5k 1.1×	147	20.1k
Dennis Sandris Nielsen Denmark	56	6.8k 0.7×	3.9k 1.0×	2.5k 0.8×	1.8k 1.2×	2.2k 1.6×	292	12.6k
Brandi L. Cantarel United States	29	11.4k 1.2×	1.9k 0.5×	3.0k 0.9×	1.8k 1.2×	1.6k 1.2×	42	16.5k
Julia K. Goodrich United States	25	9.0k 0.9×	1.4k 0.3×	2.6k 0.8×	1.9k 1.2×	965 0.7×	31	14.3k
Knut Rudi Norway	58	6.1k 0.6×	2.1k 0.5×	1.4k 0.4×	1.5k 1.0×	958 0.7×	223	11.1k
Benjamin E. Wolfe United States	33	7.1k 0.7×	2.4k 0.6×	2.7k 0.8×	1.3k 0.8×	1.1k 0.8×	65	12.0k
Jeremiah J. Faith United States	39	10.1k 1.1×	1.8k 0.4×	2.4k 0.7×	2.6k 1.6×	880 0.7×	74	14.6k
Daniel A. Peterson United States	36	8.7k 0.9×	2.3k 0.6×	2.1k 0.6×	2.7k 1.7×	1.3k 0.9×	60	13.0k
Tom Van de Wiele Belgium	71	10.0k 1.1×	4.6k 1.1×	3.2k 1.0×	1.7k 1.1×	4.4k 3.2×	304	19.9k

Countries citing papers authored by Órla O’Sullivan

Since Specialization

Citations

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

Fields of papers citing papers by Órla O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

Walsh, Calum J., Fiona Crispie, Órla O’Sullivan, et al.. (2025). Evaluating the efficiency of 16S-ITS-23S operon sequencing for species level resolution in microbial communities. Scientific Reports. 15(1). 2822–2822. 5 indexed citations

Brennan, Fiona, et al.. (2024). An in-depth evaluation of metagenomic classifiers for soil microbiomes. Environmental Microbiome. 19(1). 19–19. 12 indexed citations

Keohane, David M., Trevor Woods, Owen Cronin, et al.. (2019). Four men in a boat: Ultra-endurance exercise alters the gut microbiome. Journal of science and medicine in sport. 22(9). 1059–1064. 75 indexed citations

Crowley, Erin K., Jillian R. Brown, Órla O’Sullivan, et al.. (2019). Nigral overexpression of α‐synuclein in a rat Parkinson’s disease model indicates alterations in the enteric nervous system and the gut microbiome. Neurogastroenterology & Motility. 32(1). e13726–e13726. 74 indexed citations

Wouw, Marcel van de, Marcus Boehme, Joshua M. Lyte, et al.. (2018). Short‐chain fatty acids: microbial metabolites that alleviate stress‐induced brain–gut axis alterations. The Journal of Physiology. 596(20). 4923–4944. 571 indexed citations breakdown →

Burke, Daniel, Fiona Fouhy, Michael Harrison, et al.. (2017). The altered gut microbiota in adults with cystic fibrosis. BMC Microbiology. 17(1). 58–58. 123 indexed citations

Walsh, Aaron M., Fiona Crispie, Kieran N. Kilcawley, et al.. (2016). Microbial Succession and Flavor Production in the Fermented Dairy Beverage Kefir. mSystems. 1(5). 232 indexed citations

Deane, Jennifer, N.J. Ronan, Grace O’Callaghan, et al.. (2015). WS16.1 Clinical Outcomes of Real-World Kalydeco (CORK) study – Investigating the impact of CFTR potentiation on the intestinal microbiota, exocrine pancreatic function and intestinal inflammation prospectively over 12 months. Journal of Cystic Fibrosis. 14. S29–S29. 2 indexed citations

Clarke, Siobhan F., Eileen F. Murphy, Órla O’Sullivan, et al.. (2014). Exercise and associated dietary extremes impact on gut microbial diversity. Gut. 63(12). 1913–1920. 1044 indexed citations breakdown →

10.

O’Sullivan, Órla, Catherine Stanton, Morten Danielsen, et al.. (2007). pEOC01: A plasmid from Pediococcus acidilactici which encodes an identical streptomycin resistance (aadE) gene to that found in Campylobacter jejuni. Plasmid. 58(2). 115–126. 17 indexed citations

11.

O’Sullivan, Órla. (2005). Offset Mortgages Popular Elsewhere, but Here?. ABA banking journal. 97(8). 12.

12.

O’Sullivan, Órla. (1997). The Teller Line of the Future. ABA banking journal. 89(6). 67.

13.

O’Sullivan, Órla. (1997). From France, a Glimpse of Things to Come. ABA banking journal. 89(3). 57. 1 indexed citations

14.

O’Sullivan, Órla. (1997). Musical Chairs for Mortgage Securities. ABA banking journal. 89(5). 66. 1 indexed citations

15.

O’Sullivan, Órla. (1997). Biometrics Comes to Life. ABA banking journal. 89(1). 31. 6 indexed citations

16.

O’Sullivan, Órla. (1997). Is Off-Line Debit about to Derail; Some See the Sudden Acceleration in Check Card Use as a Boon, Others as Fraud Waiting to Happen. ABA banking journal. 89(9). 66. 1 indexed citations

17.

O’Sullivan, Órla. (1997). Cutting out the Conduits. ABA banking journal. 89(4). 62. 1 indexed citations

18.

O’Sullivan, Órla. (1997). To Surcharge or Not to Surcharge. ABA banking journal. 89(9). 40. 2 indexed citations

19.

O’Sullivan, Órla. (1997). Some of Your Customers Are Unprofitable. OK, Now What?. ABA banking journal. 89(11). 42. 3 indexed citations

20.

O’Sullivan, Órla. (1996). Data Warehousing - without the Warehouse. ABA banking journal. 88(12). 42. 5 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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