John J. Ryan

6.4k total citations · 1 hit paper
109 papers, 5.3k citations indexed

About

John J. Ryan is a scholar working on Health, Toxicology and Mutagenesis, Immunology and Cancer Research. According to data from OpenAlex, John J. Ryan has authored 109 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Health, Toxicology and Mutagenesis, 48 papers in Immunology and 26 papers in Cancer Research. Recurrent topics in John J. Ryan's work include Toxic Organic Pollutants Impact (54 papers), Effects and risks of endocrine disrupting chemicals (34 papers) and Carcinogens and Genotoxicity Assessment (25 papers). John J. Ryan is often cited by papers focused on Toxic Organic Pollutants Impact (54 papers), Effects and risks of endocrine disrupting chemicals (34 papers) and Carcinogens and Genotoxicity Assessment (25 papers). John J. Ryan collaborates with scholars based in United States, Canada and Germany. John J. Ryan's co-authors include Arnold Schecter, Linda S. Birnbaum, John D. Constable, Olaf Päpke, Marián Pavúk, Adrian Covaci, Dorothea F.K. Rawn, Bryony H. Wilford, G. Mark Richardson and Josephine Archbold and has published in prestigious journals such as Nucleic Acids Research, Journal of Biological Chemistry and The Journal of Experimental Medicine.

In The Last Decade

John J. Ryan

108 papers receiving 5.1k citations

Hit Papers

align trajectories sort by overperformance

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.

Is House Dust the Missing Exposure Pathway for PBDEs? An Analysis of the Urban Fate and Human Exposure to PBDEs

2005 554 citations John J. Ryan et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
John J. Ryan	3.1k	1.3k	999	510	447	109	5.3k
Jiangping Wu	3.1k 1.0×	1.1k 0.8×	477 0.5×	227 0.4×	2.0k 4.5×	234	7.8k
Robert M. Bigsby	2.0k 0.7×	641 0.5×	717 0.7×	203 0.4×	1.7k 3.7×	91	5.8k
Shuk‐Mei Ho	1.6k 0.5×	613 0.5×	1.2k 1.2×	455 0.9×	2.9k 6.6×	177	8.3k
Scott W. Burchiel	1.5k 0.5×	847 0.6×	647 0.6×	200 0.4×	1.2k 2.6×	120	4.1k
Kim Boekelheide	2.9k 0.9×	390 0.3×	1.2k 1.2×	508 1.0×	3.4k 7.5×	185	9.3k
Hsin‐Su Yu	622 0.2×	508 0.4×	209 0.2×	250 0.5×	990 2.2×	142	3.6k
Raymond Poon	1.4k 0.5×	245 0.2×	519 0.5×	273 0.5×	2.0k 4.5×	142	5.4k
Lisa A. Dailey	2.3k 0.7×	410 0.3×	531 0.5×	380 0.7×	3.1k 6.9×	129	6.7k
Jerold A. Last	1.1k 0.4×	299 0.2×	288 0.3×	673 1.3×	1.2k 2.7×	162	4.4k
Shigeki Kuriyama	984 0.3×	431 0.3×	956 1.0×	173 0.3×	2.5k 5.5×	235	7.6k

Countries citing papers authored by John J. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by John J. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John J. Ryan

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

All Works

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20 of 20 papers shown

Saleem, Sheinei, Rebecca Martin, Johanna K. Morales, et al.. (2012). Cutting Edge: Mast Cells Critically Augment Myeloid-Derived Suppressor Cell Activity. The Journal of Immunology. 189(2). 511–515. 72 indexed citations

Ryan, John J., Xu‐Liang Cao, & Robert Dabeka. (2012). Dioxins, furans and non-ortho-PCBs in Canadian total diet foods 1992–1999 and 1985–1988. Food Additives & Contaminants Part A. 30(3). 491–505. 7 indexed citations

Rawn, Dorothea F.K., et al.. (2011). Brominated flame retardants in Canadian chicken egg yolks. Food Additives & Contaminants Part A. 28(6). 807–815. 28 indexed citations

Zhao, Wei, et al.. (2008). TGF-β1 Attenuates Mediator Release and De Novo Kit Expression by Human Skin Mast Cells through a Smad-Dependent Pathway. The Journal of Immunology. 181(10). 7263–7272. 39 indexed citations

Toms, Leisa‐Maree, Fiona Harden, Peter Hobson, et al.. (2006). Assessment of the Concentrations of Polybrominated Diphenyl Ether Flame Retardants in the Australian Population: Levels in Blood. QUT ePrints (Queensland University of Technology). 1–71.

Barnstein, Brian, Geqiang Li, Zhengqi Wang, et al.. (2006). Stat5 Expression Is Required for IgE-Mediated Mast Cell Function. The Journal of Immunology. 177(5). 3421–3426. 56 indexed citations

Schecter, Arnold, Linda S. Birnbaum, John J. Ryan, & John D. Constable. (2006). Dioxins: An overview. Environmental Research. 101(3). 419–428. 405 indexed citations

Gomez, Gregorio, et al.. (2005). Impaired FcεRI-Dependent Gene Expression and Defective Eicosanoid and Cytokine Production as a Consequence of Fyn Deficiency in Mast Cells. The Journal of Immunology. 175(11). 7602–7610. 93 indexed citations

Bailey, Daniel P., Mohit Kashyap, Paria Mirmonsef, et al.. (2004). Interleukin-4 elicits apoptosis of developing mast cells via a Stat6-dependent mitochondrial pathway. Experimental Hematology. 32(1). 52–59. 26 indexed citations

10.

Schecter, Arnold, et al.. (2003). Polybrominated diphenyl ethers (PBDEs) in U.S. mothers' milk.. Environmental Health Perspectives. 111(14). 1723–1729. 427 indexed citations

11.

Schecter, Arnold, et al.. (2002). Characterization of dioxin exposure in firefighters, residents, and chemical workers in the Irkutsk Region of Russian Siberia. Chemosphere. 47(2). 147–156. 12 indexed citations

12.

Covaci, Adrian, J. de Boer, John J. Ryan, Stefan Voorspoels, & Paul Schepens. (2002). Distribution of Organobrominated and Organochlorinated Contaminants in Belgian Human Adipose Tissue. Environmental Research. 88(3). 210–218. 149 indexed citations

13.

Ryan, John J., Shirley K. DeSimone, Christopher P. Shelburne, et al.. (1998). IL-4 inhibits mouse mast cell Fc epsilonRI expression through a STAT6-dependent mechanism.. PubMed. 161(12). 6915–23. 72 indexed citations

14.

Ryan, John J.. (1997). Interleukin-4 and its receptor: Essential mediators of the allergic response. Journal of Allergy and Clinical Immunology. 99(1). 1–5. 83 indexed citations

15.

Ayotte, Pierre, Éric Dewailly, John J. Ryan, S. Bruneau, & Guy L. LeBel. (1997). PCBs and dioxin-like compounds in plasma of adult inuit living in Nunavik (Arctic Quebec). Chemosphere. 34(5-7). 1459–1468. 74 indexed citations

16.

Schecter, Arnold, Peter Fürst, Christiane Fürst, et al.. (1994). Chlorinated dioxins and dibenzofurans in human tissues from general populations: a selective review. Environmental Health Perspectives. 102(suppl 1). 159–171. 70 indexed citations

17.

Vacchio, Melanie S., John J. Ryan, & Richard J. Hodes. (1990). Characterization of the ligand(s) responsible for negative selection of V beta 11- and V beta 12-expressing T cells: effects of a new Mls determinant.. The Journal of Experimental Medicine. 172(3). 807–813. 40 indexed citations

18.

Ryan, John J., Craig B. Thompson, J J Mond, & Fred D. Finkelman. (1988). AUGMENTED IN VITRO PRESENTATION OF Mls DETERMINANTS AFTER ANTI‐IMMUNOGLOBULIN‐INDUCED B CELL ACTIVATION: ONTOGENY AND ROLE OF PURIFIED B CELLS. International Journal of Immunogenetics. 15(1-3). 121–133. 3 indexed citations

19.

Abe, Ryo, John J. Ryan, & Richard J. Hodes. (1987). Clonal analysis of the Mls system. A reappraisal of polymorphism and allelism among Mlsa, Mlsc, and Mlsd.. The Journal of Experimental Medicine. 165(4). 1113–1129. 45 indexed citations

20.

Abe, Ryo, John J. Ryan, & R J Hodes. (1987). Mls is not a single gene, allelic system. Different stimulatory Mls determinants are the products of at least two nonallelic, unlinked genes.. The Journal of Experimental Medicine. 166(4). 1150–1155. 32 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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