Zain Kassam

8.7k total citations · 3 hit papers
135 papers, 5.4k citations indexed

About

Zain Kassam is a scholar working on Infectious Diseases, Epidemiology and Molecular Biology. According to data from OpenAlex, Zain Kassam has authored 135 papers receiving a total of 5.4k indexed citations (citations by other indexed papers that have themselves been cited), including 101 papers in Infectious Diseases, 56 papers in Epidemiology and 54 papers in Molecular Biology. Recurrent topics in Zain Kassam's work include Clostridium difficile and Clostridium perfringens research (101 papers), Gut microbiota and health (53 papers) and Microscopic Colitis (47 papers). Zain Kassam is often cited by papers focused on Clostridium difficile and Clostridium perfringens research (101 papers), Gut microbiota and health (53 papers) and Microscopic Colitis (47 papers). Zain Kassam collaborates with scholars based in United States, Canada and United Kingdom. Zain Kassam's co-authors include Christine H. Lee, Yuhong Yuan, Richard H. Hunt, Jessica R. Allegretti, Paul Moayyedi, David Armstrong, John K. Marshall, Michael G. Surette, Josie Libertucci and Walter Reinisch and has published in prestigious journals such as New England Journal of Medicine, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Zain Kassam

130 papers receiving 5.3k citations

Hit 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.

Fecal Microbiota Transplantation Induces Remission in Patients With Active Ulcerative Colitis in a Randomized Controlled Trial

2015 1.1k citations David Armstrong, Zain Kassam et al. profile →
Fecal Microbiota Transplantation for Clostridium difficile Infection: Systematic Review and Meta-Analysis

2013 700 citations Zain Kassam, Christine H. Lee et al. The American Journal of Gastroenterology profile →
Fecal microbiota transplant from a rational stool donor improves hepatic encephalopathy: A randomized clinical trial

2017 439 citations Zain Kassam, Mark Smith et al. profile →

Peers

Countries citing papers authored by Zain Kassam

Since Specialization

Citations

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

Fields of papers citing papers by Zain Kassam

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Zain Kassam

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

#	Work	Indexed citations
1	Multi-Species Synbiotic Supplementation After Antibiotics Promotes Recovery of Microbial Diversity and Function, and Increases Gut Barrier Integrity: A Randomized, Placebo-Controlled Trial 2026 ·Antibiotics ·(unknown), (unknown), Paul Feuerstadt, (unknown), (unknown), (unknown), (unknown), Zain Kassam, (unknown)	0
2	Strain-resolved analysis in a randomized trial of antibiotic pretreatment and maintenance dose delivery mode with fecal microbiota transplant for ulcerative colitis 2022 ·Scientific Reports ·Byron J. Smith, Yvette M. Piceno, Martin Zydek, Bing Zhang, (unknown), Jonathan P. Terdiman, Zain Kassam, Averil Ma, Susan V. Lynch, Katherine S. Pollard, Najwa El‐Nachef	28
3	Cost‐effectiveness analysis of sequential fecal microbiota transplantation for fulminant Clostridioides difficile infection 2021 ·Journal of Gastroenterology and Hepatology ·(unknown), Jinyi Zhu, Thomas R. McCarty, (unknown), Zain Kassam, Colleen Kelly, Monika Fischer, Jessica R. Allegretti	6
4	Microbiome predictors of dysbiosis and VRE decolonization in patients with recurrent C. difficile infections in a multi-center retrospective study 2019 ·PMC ·Marina Santiago, (unknown), Jessica R. Allegretti, Olga C. Aroniadis, Lawrence J. Brandt, Monika Fischer, Ari Grinspan, Colleen Kelly, Casey D. Morrow, Martín Rodríguez, Majdi Osman, Zain Kassam, Mark Smith, Sonia Timberlake	3
5	Faecal microbiota transplantation for diarrhoea-predominant irritable bowel syndrome: a double-blind, randomised, placebo-controlled trial 2019 ·The Lancet. Gastroenterology & hepatology ·Olga C. Aroniadis, Lawrence J. Brandt, Caterina Oneto, Paul Feuerstadt, Alex Sherman, Allan W. Wolkoff, Zain Kassam, (unknown), Ryan J. Elliott, Shrish Budree, Mimi Kim, Marla J. Keller	102
6	Capsule-Delivered Fecal Microbiota Transplant Is Safe and Well Tolerated in Patients with Ulcerative Colitis 2019 ·Digestive Diseases and Sciences ·Elizabeth M. Adler, (unknown), Zain Kassam, Martin Zydek, Jonathan P. Terdiman, Najwa El‐Nachef	16
7	Microbiome predictors of dysbiosis and VRE decolonization in patients with recurrent <em>C. difficile</em> infections in a multi-center retrospective study 2019 ·AIMS Microbiology ·Marina Santiago, (unknown), (unknown), Jessica R. Allegretti, Olga C. Aroniadis, Lawrence J. Brandt, Monika Fischer, Ari Grinspan, Colleen Kelly, Casey D. Morrow, Martín Rodríguez, Majdi Osman, Zain Kassam, Mark Smith, Sonia Timberlake, (unknown)	14
8	Fecal microbiota transplant for Crohn disease: A study evaluating safety, efficacy, and microbiome profile 2019 ·United European Gastroenterology Journal ·(unknown), Yvette M. Piceno, Douglas Fadrosh, Kole Lynch, Martin Zydek, Zain Kassam, Brandon LaMere, Jonathan P. Terdiman, Averil Ma, Ma Somsouk, Susan V. Lynch, Najwa El‐Nachef	53
9	Combined Endoscopic and Oral Fecal Microbiota Transplantation in Patients with Antibiotic-Dependent Pouchitis: Low Clinical Efficacy due to Low Donor Microbial Engraftment 2019 ·Inflammatory Intestinal Diseases ·Hans Herfarth, Edward L. Barnes, Millie D. Long, Kim L. Isaacs, (unknown), Michael Silverstein, Ylaine Gerardin, Zain Kassam	56
10	Advances in mesenchymal stromal cell therapy in the management of Crohn’s disease 2017 ·Expert Review of Gastroenterology & Hepatology ·Hajir Ibraheim, Chiara Giacomini, Zain Kassam, Francesco Dazzi, Nick Powell	17
11	Asymptomatic Clostridium difficile carriage rate post-fecal microbiota transplant is low: a prospective clinical and stool assessment 2017 ·Clinical Microbiology and Infection ·Jessica R. Allegretti, Andrew S. Allegretti, Emmalee Phelps, Huiping Xu, Zain Kassam, Monika Fischer	12
12	Early Antibiotic Use After Fecal Microbiota Transplantation Increases Risk of Treatment Failure 2017 ·Clinical Infectious Diseases ·Jessica R. Allegretti, Dina Kao, (unknown), Monika Fischer, Zain Kassam	38
13	The Current Landscape and Lessons from Fecal Microbiota Transplantation for Inflammatory Bowel Disease 2017 ·Inflammatory Bowel Diseases ·Jessica R. Allegretti, (unknown), Najwa El‐Nachef, Monika Fischer, (unknown), Zain Kassam	40
14	Review of the Emerging Treatment of Clostridium difficile Infection with Fecal Microbiota Transplantation and Insights into Future Challenges 2014 ·Clinics in Laboratory Medicine ·Zain Kassam, Christine H. Lee, Richard H. Hunt	27
15	The outcome and long-term follow-up of 94 patients with recurrent and refractory Clostridium difficile infection using single to multiple fecal microbiota transplantation via retention enema 2014 ·European Journal of Clinical Microbiology & Infectious Diseases ·(unknown), (unknown), Zain Kassam, Marek Smieja, David Higgins, George Broukhanski, (unknown)	83
16	Inflammatory Bowel Disease Cause-specific Mortality 2014 ·Inflammatory Bowel Diseases ·Zain Kassam, Sara Belga, Idan Roifman, Simon A. Hirota, Humberto Jijon, Gilaad G. Kaplan, Subrata Ghosh, Paul L. Beck	43
17	Fecal Microbiota Transplantation for Clostridium difficile Infection: Systematic Review and Meta-Analysis breakdown → 2013 ·The American Journal of Gastroenterology ·Zain Kassam, Christine H. Lee, Yuhong Yuan, Richard H. Hunt	700
18	Epidemiology and Risk Factors for Bloodstream Infections in a Home Parenteral Nutrition Program 2013 ·Journal of Parenteral and Enteral Nutrition ·(unknown), Zain Kassam, Faizan Amin, (unknown), Shariq Haider, David Armstrong	22
19	The adoptive transfer of behavioral phenotype via the intestinal microbiota: experimental evidence and clinical implications 2013 ·Current Opinion in Microbiology ·Stephen M. Collins, Zain Kassam, Přemysl Berčík	161
20	A presentation of latent tropical sprue in a Canadian hospital 2013 ·European Journal of Gastroenterology & Hepatology ·(unknown), Zain Kassam, Richard H. Hunt, (unknown)	2

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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