Mary Zachos

3.2k total citations · 1 hit paper
39 papers, 2.3k citations indexed

About

Mary Zachos is a scholar working on Genetics, Epidemiology and Surgery. According to data from OpenAlex, Mary Zachos has authored 39 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Genetics, 16 papers in Epidemiology and 15 papers in Surgery. Recurrent topics in Mary Zachos's work include Inflammatory Bowel Disease (22 papers), Microscopic Colitis (14 papers) and Adolescent and Pediatric Healthcare (9 papers). Mary Zachos is often cited by papers focused on Inflammatory Bowel Disease (22 papers), Microscopic Colitis (14 papers) and Adolescent and Pediatric Healthcare (9 papers). Mary Zachos collaborates with scholars based in Canada, United States and United Kingdom. Mary Zachos's co-authors include Anne M. Griffiths, Mélody Tondeur, Thomas D. Walters, Dan Turner, Anthony Otley, Petar Mamula, Joep de Bruijne, David R. Mack, Krista Uusoue and Jeffrey S. Hyams and has published in prestigious journals such as Journal of Biological Chemistry, Gastroenterology and PEDIATRICS.

In The Last Decade

Mary Zachos

38 papers receiving 2.2k citations

Hit Papers

1 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.

Development, Validation, and Evaluation of a Pediatric Ulcerative Colitis Activity Index: A Prospective Multicenter Study

2007 788 citations Dan Turner, Anthony Otley et al. Gastroenterology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Mary Zachos Canada	17	1.6k	1.1k	792	360	280	39	2.3k
Jonathan Evans United States	19	1.3k 0.8×	910 0.8×	628 0.8×	254 0.7×	224 0.8×	35	2.2k
Lissy de Ridder Netherlands	30	2.3k 1.4×	1.5k 1.4×	1.3k 1.7×	792 2.2×	313 1.1×	124	3.4k
Wael El‐Matary Canada	28	1.1k 0.7×	907 0.8×	755 1.0×	206 0.6×	152 0.5×	121	2.1k
Jarosław Kierkuś Poland	25	1.4k 0.8×	1.0k 1.0×	808 1.0×	815 2.3×	124 0.4×	186	2.7k
Małgorzata Sładek Poland	17	1.2k 0.8×	843 0.8×	653 0.8×	301 0.8×	96 0.3×	44	1.7k
Javier Martín de Carpi Spain	14	1.1k 0.7×	729 0.7×	650 0.8×	266 0.7×	108 0.4×	57	1.6k
Carmen Cuffari United States	22	730 0.5×	433 0.4×	590 0.7×	184 0.5×	134 0.5×	71	1.7k
Peter Lewindon Australia	28	608 0.4×	679 0.6×	890 1.1×	119 0.3×	127 0.5×	92	2.2k
Jean Frédéric Colombel France	12	1.6k 1.0×	1.2k 1.1×	690 0.9×	331 0.9×	69 0.2×	14	2.2k
Hans Hildebrand Sweden	20	966 0.6×	735 0.7×	539 0.7×	127 0.4×	124 0.4×	37	1.5k

Countries citing papers authored by Mary Zachos

Since Specialization

Citations

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

Fields of papers citing papers by Mary Zachos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mary Zachos. 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 Mary Zachos. The network helps show where Mary Zachos may publish in the future.

Co-authorship network of co-authors of Mary Zachos

This figure shows the co-authorship network connecting the top 25 collaborators of Mary Zachos. A scholar is included among the top collaborators of Mary Zachos 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 Mary Zachos. Mary Zachos 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

1.

Zachos, Mary, et al.. (2025). A212 ROLE OF UPADACITINIB AND IUS IN PEDIATRIC PATIENTS WITH REFRACTORY ACUTE SEVERE COLITIS: SINGLE-CENTER CASE SERIES. Journal of the Canadian Association of Gastroenterology. 8(Supplement_1). i88–i88.

2.

Cellucci, Tania, Robert M. Issenman, Nikhil Pai, et al.. (2025). Silent Struggles: Uncovering Mental Health Burdens in Adolescents with Inflammatory Bowel Disease and Juvenile Idiopathic Arthritis—A Retrospective Chart Review. Children. 12(8). 995–995. 1 indexed citations

3.

Hill, Lee, Jelena Popov, Emily Hartung, et al.. (2023). Physical Activity in Pediatric Inflammatory Bowel Disease: A Scoping Review. Pediatric Exercise Science. 36(1). 44–56. 1 indexed citations

4.

Johnston, Bradley C., et al.. (2023). Microbiota signatures and mucosal healing in the use of enteral nutrition therapy v. corticosteroids for the treatment of children with Crohn’s disease: a systematic review and meta-analysis. British Journal Of Nutrition. 130(8). 1385–1402. 5 indexed citations

5.

Sherlock, Mary, Mary Zachos, Robert M. Issenman, & Daniel J. Mulder. (2020). Clinical and Laboratory Characteristics Are Associated With Biologic Therapy Use in Pediatric Inflammatory Bowel Disease: A Retrospective Cohort Study. Journal of the Canadian Association of Gastroenterology. 4(5). e92–e100. 2 indexed citations

6.

Hart, Lara, Jake C. Szamosi, Mai Yamamoto, et al.. (2020). Effect of Exclusive Enteral Nutrition and Corticosteroid Induction Therapy on the Gut Microbiota of Pediatric Patients with Inflammatory Bowel Disease. Nutrients. 12(6). 1691–1691. 26 indexed citations

7.

Narula, Neeraj, Amit Dhillon, Dongni Zhang, et al.. (2018). Enteral nutritional therapy for induction of remission in Crohn's disease. Cochrane Database of Systematic Reviews. 2018(4). 214 indexed citations

8.

Webb, Bryn D., Maru Barrera, Joseph Beyene, et al.. (2012). Determinants of quality of life in children with chronic somatic disease: pilot data from the GapS Questionnaire. Quality of Life Research. 22(2). 339–349. 4 indexed citations

9.

Sherlock, Mary, Thomas D. Walters, Merit M. Tabbers, et al.. (2012). Infliximab‐Induced Psoriasis and Psoriasiform Skin Lesions in Pediatric Crohn Disease and a Potential Association With IL‐23 Receptor Polymorphisms. Journal of Pediatric Gastroenterology and Nutrition. 56(5). 512–518. 59 indexed citations

10.

Guttman, Orlee R. & Mary Zachos. (2011). Drug-induced esophageal injury with an occult vascular ring. Paediatrics & Child Health. 16(9). 554–556. 10 indexed citations

11.

Benchimol, Eric I., Thomas D. Walters, Miriam Kaufman, et al.. (2010). Assessment of knowledge in adolescents with inflammatory bowel disease using a novel transition tool. Inflammatory Bowel Diseases. 17(5). 1131–1137. 87 indexed citations

12.

Walsh, Catharine M., et al.. (2010). Vulvar Inflammation as the Only Clinical Manifestation of Crohn Disease in an 8-Year-Old Girl. PEDIATRICS. 125(6). e1518–e1522. 20 indexed citations

13.

Waters, Aoife, Mary Zachos, Andrew M. Herzenberg, Elizabeth Harvey, & Norman D. Rosenblum. (2008). Tubulointerstitial nephritis as an extraintestinal manifestation of Crohn's disease. Nature Clinical Practice Nephrology. 4(12). 693–697. 22 indexed citations

14.

Turner, Dan, Anthony Otley, David R. Mack, et al.. (2007). Development, Validation, and Evaluation of a Pediatric Ulcerative Colitis Activity Index: A Prospective Multicenter Study. Gastroenterology. 133(2). 423–432. 788 indexed citations breakdown →

15.

Turner, Dan, Joep de Bruijne, David R. Mack, et al.. (2006). A Prospective Multicenter Study: Development and Validation of a Pediatric Ulcerative Colitis Activity Index. Journal of Pediatric Gastroenterology and Nutrition. 43(S2). 22 indexed citations

16.

Kundhal, P., Michael Stormon, Mary Zachos, et al.. (2003). Gastral Antral Biopsy in the Differentiation of Pediatric Colitides. The American Journal of Gastroenterology. 98(3). 557–561. 44 indexed citations

17.

Kundhal, P., Jeffrey Critch, Mary Zachos, et al.. (2003). Pediatric Crohn Disease Activity Index: Responsive to Short-term Change. Journal of Pediatric Gastroenterology and Nutrition. 36(1). 83–89. 42 indexed citations

18.

Kundhal, P., et al.. (2001). Controlled Ileal Release Budesonide in Pediatric Crohn Disease: Efficacy and Effect on Growth. Journal of Pediatric Gastroenterology and Nutrition. 33(1). 75–80. 6 indexed citations

19.

Zachos, Mary & Anne M. Griffiths. (2001). Enteral feeding and Crohn disease. Current Opinion in Gastroenterology. 17(2). 167–170. 3 indexed citations

20.

Kundhal, P., et al.. (2001). Controlled Ileal Release Budesonide in Pediatric Crohn Disease: Efficacy and Effect on Growth. Journal of Pediatric Gastroenterology and Nutrition. 33(1). 75–80. 33 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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