Gerald C. O’Sullivan

14.8k citations

166 papers · 11.2k indexed · 4 hit papers · h-index 51

Impact in

Gastroenterology top 0.2%
- Gastrointestinal motility and disorders
Biotechnology top 0.1%
- Microbial Inactivation Methods

Papers in

Biotechnology 29
- Microbial Inactivation Methods 16
- Cancer Research and Treatments 13
Immunology 32
- Immunotherapy and Immune Responses 11
- Immune Cell Function and Interaction 10

Co-authors: Fergus Shanahan John Collins J O’Connell Sharon L. McKenna Barry Kiely Mark Tangney Joe O’Connell Liam O’Mahony
Journals: Gastroenterology (14 papers)British journal of surgery (6 papers)The American Journal of Gastroenterology (5 papers)The Journal of Immunology (4 papers)Annals of Surgery (4 papers)
Partner nations: Ireland United States United Kingdom

In The Last Decade

Gerald C. O’Sullivan

165 papers receiving 10.7k citations

Hit Papers

align trajectories log scale

Electrochemotherapy – An easy, highly effective and safe treatment of cutaneous and subcutaneous metastases: Results of ESOPE (European Standard Operating Procedures of Electrochemotherapy) study 2006 · 628 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2006 European Journal of Cancer Supplements
2005 Gastroenterology
2001 American Journal of Clinical Nutrition
1996 The Journal of Experimental Medicine

Peers

Countries citing papers authored by Gerald C. O’Sullivan

Since Specialization

Citations

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

Fields of papers citing papers by Gerald C. O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Gerald C. O’Sullivan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Gerald C. O’Sullivan Line = papers co-authored together Gerald C. O’Sullivan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Lithium Modulates Autophagy in Esophageal and Colorectal Cancer Cells and Enhances the Efficacy of Therapeutic Agents In Vitro and In Vivo PLoS ONE ·Tracey R. O’Donovan, Simon Rajendran, Séamus O’Reilly, Gerald C. O’Sullivan, Sharon L. McKenna	2015	43
2	Development and characterization of an enhanced nonviral expression vector for electroporation cancer treatment Molecular Therapy — Methods & Clinical Development ·Patrick F. Forde, Lindsay J. Hall, Rabab A. Moussa, M. Padilla Behar, Gerald C. O’Sullivan, Declan M. Soden	2014	6
3	Objective structured assessment of technical skills and checklist scales reliability compared for high stakes assessments ANZ Journal of Surgery ·Anthony G. Gallagher, Gerald C. O’Sullivan, Gerald Leonard, Brendan Bunting, Kieran McGlade	2012	35
4	The emerging role of viruses in the treatment of solid tumours Cancer Treatment Reviews ·Michael G. Bourke, Sylwester Salwa, Kevin J. Harrington, Michael Jonathan Kucharczyk, Patrick F. Forde, Jaroslav Seibert, Declan M. Soden, Mark Tangney, John Collins, Gerald C. O’Sullivan	2011	50
5	Gene Therapy for Prostate Cancer Postgraduate Medicine ·Mark Tangney, Sarfraz Ahmad, Sara Collins, Gerald C. O’Sullivan	2010	10
6	Murine Bioluminescent Hepatic Tumour Model Journal of Visualized Experiments ·Simon Rajendran, López Oliete, Xuefeng Gao, Sabin Tabirca, Deirdre O’Hanlon, Gerald C. O’Sullivan, Mark Tangney	2010	10
7	Shear stress induces internalization of E‐cadherin and invasiveness in metastatic oesophageal cancer cells by a Src‐dependent pathway Cancer Science ·Karen Lawler, Gerald C. O’Sullivan, Aideen Long, Dermot Kenny	2009	35
8	Anti-metastatic effects of viral and non-viral mediated Nk4 delivery to tumours PubMed ·Patricia R. Bryant, Sara Collins, Jan Peter van Pijkeren, Simon Rajendran, A. S. Borisenko, Gerald C. O’Sullivan, Deirdre O’Hanlon, Mark Tangney	2009	12
9	Viral Vectors in Cancer Immunotherapy: Which Vector for Which Strategy? Current Gene Therapy ·Sara Collins, Barbara‐ann Guinn, Patrick T. Harrison, Martina Scallan, Gerald C. O’Sullivan, Mark Tangney	2008	48
10	Lactobacillus and bifidobacterium in irritable bowel syndrome: Symptom responses and relationship to cytokine profiles Gastroenterology ·Liam O’Mahony, Jane McCarthy, (unknown), Uca Allahla, Fangyi Luo, Ker‐Sang Chen, Gerald C. O’Sullivan, Barry Kiely, John Collins, Fergus Shanahan, Eamonn M.M. Quigley Hit paper breakdown →	2005	1082
11	Paraesophageal lymph node metastasis from prostatic adenocarcinoma in a patient with esophageal squamous carcinoma Diseases of the Esophagus ·John O. Larkin, Chris Collins, Janice D. Denning, Sangeetha Kalimuthu, Jim Fitzgibbon, G. Lee, Gerald C. O’Sullivan	2005	3
12	Fas ligand expressed in colon cancer is not associated with increased apoptosis of tumor cells in vivo International Journal of Cancer ·Aileen Houston, Frank Waldron-Lynch, Michael Bennett, Desmond Roche, Gerald C. O’Sullivan, Fergus Shanahan, Joe O’Connell	2003	20
13	Thoracoscopic repair of instrumental perforation of the oesophagus: first report Irish Journal of Medical Science (1971 -) ·Chris Collins, Mayilone Arumugasamy, James Larkin, Seán Martin, Gerald C. O’Sullivan	2002	4
14	Expression of Fas ligand by human gastric adenocarcinomas: a potential mechanism of immune escape in stomach cancer Gut ·Michael Bennett, J O’Connell, Gerald C. O’Sullivan, Desmond Roche, Claire Brady, J. Kelly, John Collins, Fergus Shanahan	1999	105
15	Direct Effects of Dopamine on Colonic Mucosal pH: Implications for Tonometry Journal of Surgical Research ·Desmond C. Winter, Gerald C. O’Sullivan, Brian J. Harvey, John P. Geibel	1999	7
16	Mucosal subepithelial binding sites for the bacterial chemotactic peptide, formyl-methionyl-leucyl-phenylalanine (FMLP) Gut ·Peter A. Anton, J O’Connell, Daniel J. O’Connell, Leslie R. Whitaker, Gerald C. O’Sullivan, John Collins, Fergus Shanahan	1998	26
17	Marek's disease virus EcoRI-Q gene (meq) and a small RNA antisense to ICP4 are abundantly expressed in CD4+ cells and cells carrying a novel lymphoid marker, AV37, in Marek's disease lymphomas. Journal of General Virology ·Norman Ross, L F Lee, Gerald C. O’Sullivan, Mohammad Amaireh, George Davey Smith, Shane C. Burgess, T.F. Davison, M. Rennie	1997	57
18	The Fas counterattack: Fas-mediated T cell killing by colon cancer cells expressing Fas ligand. The Journal of Experimental Medicine ·J O’Connell, Gerald C. O’Sullivan, John Collins, Fergus Shanahan Hit paper breakdown →	1996	781
19	Micrometastases in bone marrow of patients undergoing “curative” surgery for gastrointestinal cancer Gastroenterology ·Gerald C. O’Sullivan, John Collins, Fiona O’Brien, P Calzavara-Pinton, Karen Murphy, Gary Lee, Fergus Shanahan	1995	42
20	Relationship of a hiatal hernia to the function of the body of the esophagus and the gastroesophageal junction Journal of Thoracic and Cardiovascular Surgery ·Tom R. DeMeester, Edwin Lafontaine, B. Joelsson, David B. Skinner, James W. Ryan, Gerald C. O’Sullivan, Barry S. Brunsden, Lawrence F. Johnson	1981	75

About Gerald C. O’Sullivan

Gerald C. O’Sullivan is a scholar working on Biotechnology, Immunology, Gastroenterology, Genetics and Oncology, having authored 166 papers that have together received 11.2k indexed citations. Recurring topics across this work include Virus-based gene therapy research (18 papers), Probiotics and Fermented Foods (16 papers), Microbial Inactivation Methods (16 papers), Gut microbiota and health (15 papers), Cancer Research and Treatments (13 papers), Cell death mechanisms and regulation (12 papers), Immunotherapy and Immune Responses (11 papers) and Immune Cell Function and Interaction (10 papers). The work is most often cited by research in Gastroenterology (1.4k citations), Biotechnology (1.9k citations), Food Science (1.8k citations), Immunology (2.0k citations) and Oncology (1.9k citations). Gerald C. O’Sullivan has collaborated with scholars based in Ireland, United States and United Kingdom. Frequent co-authors include Fergus Shanahan, John Collins, J O’Connell, Sharon L. McKenna, Barry Kiely, Mark Tangney, Joe O’Connell, Liam O’Mahony, Chris Collins and Michael Bennett. Their work appears in journals such as Gastroenterology, British journal of surgery, The American Journal of Gastroenterology, The Journal of Immunology and Annals of Surgery.

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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