Kieran A. Ryan

1.2k total citations
21 papers, 977 citations indexed

About

Kieran A. Ryan is a scholar working on Surgery, Molecular Biology and Immunology. According to data from OpenAlex, Kieran A. Ryan has authored 21 papers receiving a total of 977 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 8 papers in Molecular Biology and 8 papers in Immunology. Recurrent topics in Kieran A. Ryan's work include Helicobacter pylori-related gastroenterology studies (12 papers), Galectins and Cancer Biology (6 papers) and Microbial Metabolites in Food Biotechnology (5 papers). Kieran A. Ryan is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (12 papers), Galectins and Cancer Biology (6 papers) and Microbial Metabolites in Food Biotechnology (5 papers). Kieran A. Ryan collaborates with scholars based in Ireland, United States and United Kingdom. Kieran A. Ryan's co-authors include Paul W. O’Toole, Peter B. Ernst, Michael F. Smith, Michael K. Sanders, Jan‐Peter van Pijkeren, Carlos Canchaya, Ann M. O’Hara, Frank J. Dutko, Diane Young and Paul Daly and has published in prestigious journals such as The Journal of Immunology, Gastroenterology and Applied and Environmental Microbiology.

In The Last Decade

Kieran A. Ryan

21 papers receiving 950 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kieran A. Ryan Ireland 16 499 301 271 218 206 21 977
Shun Iwatani Japan 14 272 0.5× 225 0.7× 246 0.9× 130 0.6× 121 0.6× 34 732
Mads Bennedsen Denmark 15 327 0.7× 354 1.2× 286 1.1× 143 0.7× 136 0.7× 17 1.0k
Heidi Annuk Ireland 17 683 1.4× 186 0.6× 595 2.2× 161 0.7× 311 1.5× 24 1.3k
Guillermo Docena Argentina 21 438 0.9× 265 0.9× 190 0.7× 346 1.6× 123 0.6× 58 1.4k
Vanessa Kissoon‐Singh Canada 7 568 1.1× 229 0.8× 243 0.9× 197 0.9× 121 0.6× 7 1.1k
B. Jan‐Willem van Klinken Netherlands 14 430 0.9× 183 0.6× 135 0.5× 150 0.7× 167 0.8× 19 903
Lauren S. Collier-Hyams United States 10 681 1.4× 451 1.5× 374 1.4× 614 2.8× 258 1.3× 12 1.8k
Nina A. Hering Germany 15 395 0.8× 118 0.4× 151 0.6× 110 0.5× 186 0.9× 35 959
Ludmilla Bardina United States 28 580 1.2× 778 2.6× 480 1.8× 242 1.1× 113 0.5× 52 3.9k
Rukhsana Chowdhury India 18 320 0.6× 93 0.3× 216 0.8× 215 1.0× 72 0.3× 35 949

Countries citing papers authored by Kieran A. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by Kieran A. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kieran A. Ryan. 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 Kieran A. Ryan. The network helps show where Kieran A. Ryan may publish in the future.

Co-authorship network of co-authors of Kieran A. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of Kieran A. Ryan. A scholar is included among the top collaborators of Kieran A. Ryan 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 Kieran A. Ryan. Kieran A. Ryan 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.
Fox, Sarah, Kieran A. Ryan, Alice H. Berger, et al.. (2015). The role of C1q in recognition of apoptotic epithelial cells and inflammatory cytokine production by phagocytes during Helicobacter pylori infection. Journal of Inflammation. 12(1). 51–51. 9 indexed citations
2.
3.
Douillard, François P., Kieran A. Ryan, Michael Lane, et al.. (2010). The HP0256 gene product is involved in motility and cell envelope architecture of Helicobacter pylori. BMC Microbiology. 10(1). 106–106. 4 indexed citations
4.
Ryan, Kieran A., Ann M. O’Hara, Jan‐Peter van Pijkeren, François P. Douillard, & Paul W. O’Toole. (2009). Lactobacillus salivarius modulates cytokine induction and virulence factor gene expression in Helicobacter pylori. Journal of Medical Microbiology. 58(8). 996–1005. 64 indexed citations
5.
Douillard, François P., Kieran A. Ryan, Jason Hinds, & Paul W. O’Toole. (2009). Effect of FliK mutation on the transcriptional activity of the σ 54 sigma factor RpoN in Helicobacter pylori. Microbiology. 155(6). 1901–1911. 11 indexed citations
6.
Douillard, François P., Kieran A. Ryan, Delphine L. Caly, et al.. (2008). Posttranscriptional Regulation of Flagellin Synthesis in Helicobacter pylori by the RpoN Chaperone HP0958. Journal of Bacteriology. 190(24). 7975–7984. 25 indexed citations
7.
Ryan, Kieran A., Paul Daly, Carlos Canchaya, et al.. (2008). Isolation of lactobacilli with probiotic properties from the human stomach. Letters in Applied Microbiology. 47(4). 269–274. 67 indexed citations
8.
Ryan, Kieran A., et al.. (2008). Strain-specific inhibition of Helicobacter pylori by Lactobacillus salivarius and other lactobacilli. Journal of Antimicrobial Chemotherapy. 61(4). 831–834. 68 indexed citations
9.
Snelling, William J., Anthony P. Moran, Kieran A. Ryan, et al.. (2007). HorB (HP0127) is a Gastric Epithelial Cell Adhesin. Helicobacter. 12(3). 200–209. 22 indexed citations
10.
Waters, Richard C., Paul W. O’Toole, & Kieran A. Ryan. (2007). The FliK protein and flagellar hook‐length control. Protein Science. 16(5). 769–780. 48 indexed citations
11.
Li, Yin, Carlos Canchaya, Fang Fang, et al.. (2007). Distribution of Megaplasmids inLactobacillus salivariusand Other Lactobacilli. Journal of Bacteriology. 189(17). 6128–6139. 46 indexed citations
12.
O’Hara, Ann M., Asima Bhattacharyya, Randy C. Mifflin, et al.. (2006). Interleukin-8 Induction by Helicobacter pylori in Gastric Epithelial Cells is Dependent on Apurinic/Apyrimidinic Endonuclease-1/Redox Factor-1. The Journal of Immunology. 177(11). 7990–7999. 44 indexed citations
13.
Pijkeren, Jan‐Peter van, Carlos Canchaya, Kieran A. Ryan, et al.. (2006). Comparative and Functional Analysis of Sortase-Dependent Proteins in the Predicted Secretome of Lactobacillus salivarius UCC118. Applied and Environmental Microbiology. 72(6). 4143–4153. 116 indexed citations
14.
Ryan, Kieran A., et al.. (2005). HP0958 is an essential motility gene inHelicobacter pylori. FEMS Microbiology Letters. 248(1). 47–55. 19 indexed citations
15.
Ryan, Kieran A., et al.. (2005). Helicobacter pylori Flagellar Hook-Filament Transition Is Controlled by a FliK Functional Homolog Encoded by the Gene HP0906. Journal of Bacteriology. 187(16). 5742–5750. 33 indexed citations
16.
O’Hara, Ann M., Timothy L. Denning, Randy C. Mifflin, et al.. (2004). Helicobacter pylori and H2O2 increase AP endonuclease-1/redox factor-1 expression in human gastric epithelial cells. Gastroenterology. 127(3). 845–858. 76 indexed citations
17.
Ryan, Kieran A., Michael F. Smith, Michael K. Sanders, & Peter B. Ernst. (2004). Reactive Oxygen and Nitrogen Species Differentially Regulate Toll-Like Receptor 4-Mediated Activation of NF-κB and Interleukin-8 Expression. Infection and Immunity. 72(4). 2123–2130. 169 indexed citations
18.
Ryan, Kieran A., Leen‐Jan van Doorn, Anthony P. Moran, et al.. (2001). Evaluation of Clarithromycin Resistance and cagA and vacA Genotyping of Helicobacter pylori Strains from the West of Ireland Using Line Probe Assays. Journal of Clinical Microbiology. 39(5). 1978–1980. 19 indexed citations
19.
Ryan, Kieran A., Anthony P. Moran, Seán O. Hynes, et al.. (2000). Genotyping ofcagAandvacA, Lewis antigen status, and analysis of the poly-(C) tract in the α(1,3)-fucosyltransferase gene of IrishHelicobacter pyloriisolates. FEMS Immunology & Medical Microbiology. 28(2). 113–119. 14 indexed citations
20.

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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