Karen O’Hanlon

1.3k total citations
20 papers, 981 citations indexed

About

Karen O’Hanlon is a scholar working on Molecular Biology, Endocrinology and Food Science. According to data from OpenAlex, Karen O’Hanlon has authored 20 papers receiving a total of 981 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Molecular Biology, 5 papers in Endocrinology and 5 papers in Food Science. Recurrent topics in Karen O’Hanlon's work include Salmonella and Campylobacter epidemiology (4 papers), DNA Repair Mechanisms (3 papers) and Listeria monocytogenes in Food Safety (3 papers). Karen O’Hanlon is often cited by papers focused on Salmonella and Campylobacter epidemiology (4 papers), DNA Repair Mechanisms (3 papers) and Listeria monocytogenes in Food Safety (3 papers). Karen O’Hanlon collaborates with scholars based in United Kingdom, Ireland and Denmark. Karen O’Hanlon's co-authors include Lise Nistrup Jørgensen, Mogens Nicolaisen, Koen Houthoofd, Jacques R. Vanfleteren, Ann M. Burnell, Rumakanta Sapkota, Claus Storgaard Sørensen, Marie Sofie Yoo Larsen, Christian Holmberg and Olaf Nielsen and has published in prestigious journals such as Nucleic Acids Research, Nature Communications and Molecular and Cellular Biology.

In The Last Decade

Karen O’Hanlon

19 papers receiving 953 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karen O’Hanlon United Kingdom 16 491 201 192 187 140 20 981
Gianfranco Grompone France 15 1.0k 2.1× 70 0.3× 62 0.3× 166 0.9× 80 0.6× 25 1.3k
Jozef Nosek Slovakia 27 1.6k 3.3× 501 2.5× 176 0.9× 145 0.8× 47 0.3× 107 2.3k
Norio Gunge Japan 24 1.4k 2.8× 500 2.5× 220 1.1× 203 1.1× 84 0.6× 58 1.7k
Lisa Klug Austria 9 650 1.3× 70 0.3× 82 0.4× 71 0.4× 14 0.1× 10 1.0k
John H. Tran United States 12 627 1.3× 79 0.4× 54 0.3× 175 0.9× 49 0.3× 13 1.9k
Cécile Fairhead France 27 1.5k 3.0× 509 2.5× 227 1.2× 180 1.0× 37 0.3× 46 2.0k
J.P. Doherty Australia 10 756 1.5× 197 1.0× 51 0.3× 51 0.3× 34 0.2× 12 1.0k
M.J. Flores France 15 1.1k 2.1× 90 0.4× 49 0.3× 239 1.3× 63 0.5× 22 1.3k
Kamil Steczkiewicz Poland 14 566 1.2× 240 1.2× 109 0.6× 22 0.1× 44 0.3× 28 876
G. Fang United States 11 644 1.3× 413 2.1× 382 2.0× 17 0.1× 57 0.4× 19 1.2k

Countries citing papers authored by Karen O’Hanlon

Since Specialization
Citations

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

Fields of papers citing papers by Karen O’Hanlon

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

20 of 20 papers shown
1.
O’Hanlon, Karen, et al.. (2025). Financial challenges of providing obstetric services at rural US hospitals. The Journal of Rural Health. 41(4). e70082–e70082.
2.
Duijster, Denise, Neal Maskrey, Geert J. M. G. van der Heijden, et al.. (2017). A Consensus-Based Set of Measures for Oral Health Care. Journal of Dental Research. 96(8). 881–887. 19 indexed citations
3.
Klein, Ditte Kjærsgaard, Saskia Hoffmann, Johanna K. Ahlskog, et al.. (2015). Cyclin F suppresses B-Myb activity to promote cell cycle checkpoint control. Nature Communications. 6(1). 5800–5800. 60 indexed citations
4.
Sapkota, Rumakanta, et al.. (2015). Host genotype is an important determinant of the cereal phyllosphere mycobiome. New Phytologist. 207(4). 1134–1144. 129 indexed citations
5.
O’Hanlon, Karen, Geoffrey P. Margison, David A. Fitzpatrick, et al.. (2012). Molecular characterization of an adaptive response to alkylating agents in the opportunistic pathogen Aspergillus fumigatus. Nucleic Acids Research. 40(16). 7806–7820. 4 indexed citations
6.
Nähse, Viola, Marie Sofie Yoo Larsen, Karen O’Hanlon, et al.. (2012). Cyclin-Dependent Kinase Suppression by WEE1 Kinase Protects the Genome through Control of Replication Initiation and Nucleotide Consumption. Molecular and Cellular Biology. 32(20). 4226–4236. 230 indexed citations
7.
O’Hanlon, Karen, et al.. (2012). Exploring the potential of symbiotic fungal endophytes in cereal disease suppression. Biological Control. 63(2). 69–78. 44 indexed citations
8.
O’Hanlon, Karen, Markus Schrettl, Christoph Jöchl, et al.. (2012). Nonribosomal Peptide Synthetase Genes pesL and pes1 Are Essential for Fumigaclavine C Production in Aspergillus fumigatus. Applied and Environmental Microbiology. 78(9). 3166–3176. 38 indexed citations
9.
O’Hanlon, Karen, Timothy C. Cairns, Deirdre Stack, et al.. (2011). Targeted Disruption of Nonribosomal Peptide Synthetase pes3 Augments the Virulence of Aspergillus fumigatus. Infection and Immunity. 79(10). 3978–3992. 35 indexed citations
10.
O’Hanlon, Karen, et al.. (2006). COMPARISON OF A REAL‐TIME POLYMERASE CHAIN REACTION ASSAY WITH A CULTURE METHOD FOR THE DETECTION OF SALMONELLA IN RETAIL MEAT SAMPLES. Journal of Food Safety. 26(1). 1–15. 26 indexed citations
11.
Burnell, Ann M., Koen Houthoofd, Karen O’Hanlon, & Jacques R. Vanfleteren. (2005). Alternate metabolism during the dauer stage of the nematode Caenorhabditis elegans. Experimental Gerontology. 40(11). 850–856. 128 indexed citations
12.
O’Hanlon, Karen, et al.. (2005). Comparison of a real-time PCR and an IMS/culture method to detect Escherichia coli O26 and O111 in minced beef in the Republic of Ireland. Food Microbiology. 22(6). 553–560. 3 indexed citations
13.
O’Hanlon, Karen, et al.. (2004). RAPID detection and quantification of E. coli O157/O26/O111 in minced beef by real-time PCR. Journal of Applied Microbiology. 96(5). 1013–1023. 37 indexed citations
14.
O’Hanlon, Karen, et al.. (2003). Optimization of enrichment and plating procedures for the recovery of Escherichia coli O111 and O26 from minced beef. Journal of Applied Microbiology. 95(5). 949–957. 39 indexed citations
15.
Morse, Robert, Karen O’Hanlon, & Matthew Collins. (2002). Phylogenetic, amino acid content and indel analyses of the beta subunit of DNA-dependent RNA polymerase of gram-positive and gram-negative bacteria.. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY. 52(5). 1477–1484. 21 indexed citations
16.
Vaughan, Anne, et al.. (2001). An analysis of bacteriocins produced by lactic acid bacteria isolated from malted barley. Journal of Applied Microbiology. 91(1). 131–138. 84 indexed citations
17.
Morse, Robert, Karen O’Hanlon, Mumtaz Virji, & Matthew Collins. (1999). Isolation of Rifampin-Resistant Mutants of Listeria monocytogenes and Their Characterization by rpoB Gene Sequencing, Temperature Sensitivity for Growth, and Interaction with an Epithelial Cell Line. Journal of Clinical Microbiology. 37(9). 2913–2919. 28 indexed citations
18.
Morse, R., M. D. COLLINS, Karen O’Hanlon, S. Wallbanks, & Peter T. Richardson. (1996). Analysis of the  ' Subunit of DNA-Dependent RNA Polymerase Does Not Support the Hypothesis Inferred from 16S rRNA Analysis that Oenococcus oeni (Formerly Leuconostoc oenos) Is a Tachytelic (Fast-Evolving) Bacterium. International Journal of Systematic Bacteriology. 46(4). 1004–1009. 34 indexed citations
19.
20.
O’Hanlon, Karen, Karen Weissbecker, Victoria K. Cortessis, M. Anne Spence, & Edwin A. Azen. (1988). Genes for salivary proline-rich proteins and taste for phenylthiourea are not closely linked in humans. Cytogenetic and Genome Research. 49(4). 315–317. 4 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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