Majdi Osman

ORCID: 0000-0002-1272-2030
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About
Contact & Profiles
Research Areas
  • Clostridium difficile and Clostridium perfringens research
  • Gut microbiota and health
  • Gastrointestinal motility and disorders
  • Microscopic Colitis
  • Nosocomial Infections in ICU
  • Helicobacter pylori-related gastroenterology studies
  • Health disparities and outcomes
  • Global Maternal and Child Health
  • Global Public Health Policies and Epidemiology
  • Liver Disease and Transplantation
  • Adolescent Sexual and Reproductive Health
  • Trauma and Emergency Care Studies
  • HIV/AIDS Research and Interventions
  • Clinical Nutrition and Gastroenterology
  • Climate Change and Health Impacts
  • Liver Disease Diagnosis and Treatment
  • Viral gastroenteritis research and epidemiology
  • Health and Conflict Studies
  • Mycobacterium research and diagnosis
  • Global Health Care Issues
  • Cystic Fibrosis Research Advances
  • Injury Epidemiology and Prevention
  • Antibiotics Pharmacokinetics and Efficacy
  • Reproductive tract infections research
  • Infectious Disease Case Reports and Treatments

OpenBiome
2015-2024

Wellcome Sanger Institute
2024

University of Cambridge
2023

Harvard University
2016-2022

Finch Therapeutics (United States)
2022

Youth Development
2020

Youth Development Labs
2020

Boston Children's Hospital
2016-2017

University College London
2012

University College London Hospitals NHS Foundation Trust
2012

Hepatic encephalopathy (HE) can cause major morbidity despite standard of care (SOC; rifaximin/lactulose). Fecal microbial transplant (FMT) enemas postantibiotics are safe, but the effect FMT without antibiotics using capsular route requires investigation. The aim this work was to determine safety, tolerability, and impact on mucosal/stool microbiota brain function in HE after a randomized, single‐blind, placebo‐controlled clinical trial Virginia. Patients with cirrhosis recurrent MELD...

10.1002/hep.30690 article EN Hepatology 2019-05-01

Abstract Fecal microbiota transplantation (FMT) is recommended therapy for multiply recurrent Clostridioides difficile infection. We report adverse events in 7 patients who received FMT from a stool donor was colonized with Shiga toxin–producing Escherichia coli (STEC). No died of FMT-transmitted STEC. Improved screening can likely avoid future transmission.

10.1093/cid/ciaa1486 article EN Clinical Infectious Diseases 2020-09-25

Abstract Changes in the microbiota have been linked to persistent inflammation during treated HIV infection. In this pilot double-blind study, we study 30 HIV-infected subjects on antiretroviral therapy (ART) with a CD4/CD8 ratio < 1 randomized either weekly fecal capsules or placebo for 8 weeks. Stool donors were rationally selected based their signatures. We report that transplantation (FMT) is safe, not related severe adverse events, and attenuates HIV-associated dysbiosis. FMT elicits...

10.1038/s41467-021-21472-1 article EN cc-by Nature Communications 2021-02-18

Fecal microbiota transplantation (FMT) is recommended for the prevention of recurrent Clostridioides difficile infection (CDI).1Kelly C.R. et al.Am J Gastroenterol. 2021; 116: 1124-1147Crossref PubMed Scopus (202) Google Scholar Randomized trials have reported promising efficacy and safety among patients treated with FMT following standard care (SOC) CDI antibiotics compared SOC alone. However, these are small, methodological limitations.2Moayyedi P. al.Med Aust. 2017; 207: 166-172Crossref...

10.1053/j.gastro.2022.03.051 article EN cc-by-nc-nd Gastroenterology 2022-04-07

Early clinical successes are driving enthusiasm for fecal microbiota transplantation (FMT), the transfer of healthy gut bacteria through whole stool, as emerging research is linking microbiome to many different diseases. However, preliminary trials have yielded mixed results and suggest that heterogeneity in donor stool may play a role patient response. Thus, fail because an ineffective was chosen rather than FMT not appropriate indication. Here, we describe conceptual framework guide...

10.1371/journal.pone.0222881 article EN cc-by PLoS ONE 2019-10-10

Fecal microbiota transplantation (FMT) is a recommended therapy to prevent recurrent Clostridioides difficile infection (CDI).1,2 Stool banks have emerged enable safe widespread access by provid...

10.1080/19490976.2020.1768777 article EN cc-by-nc Gut Microbes 2020-06-18

The gastrointestinal microbiome is intrinsically linked to the spread of antibiotic resistance. Antibiotic treatment puts patients at risk for colonization by opportunistic pathogens like vancomycin resistant Enterococcus and <em>Clostridioides difficile</em> destroying resistance provided commensal microbiota. Once colonized, host a much higher infection that pathogen. Furthermore, we know community differences are associated with disease states, but do not have good understanding how can...

10.3934/microbiol.2019.1.1 article EN cc-by AIMS Microbiology 2019-01-01

Here we report evidence of transfer atypical enteropathogenic Escherichia coli (aEPEC) using fecal microbiota transplant (FMT) to a patient treated for recurrent Clostridium difficile infection (CDI). FMT is an effective treatment CDI.1Cammarota G. et al.Gut. 2019; 68: 2111-2121Crossref PubMed Scopus (233) Google Scholar Extensive screening ensures donors are devoid numerous medical and significant health measures including but not limited gastrointestinal symptoms infections.2Kassam Z. al.N...

10.1053/j.gastro.2023.03.222 article EN cc-by-nc-nd Gastroenterology 2023-03-28

Abstract Antimicrobial resistance (AMR) poses an immediate danger to global health. If unaddressed, the current upsurge in AMR threatens reverse achievements reducing infectious disease–associated mortality and morbidity associated with antimicrobial treatment. Consequently, there is urgent need for strategies prevent or slow progress of AMR. Vaccines potentially contribute both directly indirectly combating Modeling studies have indicated significant gains from vaccination burdens specific...

10.1093/cid/ciad562 article EN cc-by Clinical Infectious Diseases 2023-12-15

Abstract Early clinical successes are driving enthusiasm for fecal microbiota transplantation (FMT), the transfer of healthy gut bacteria through whole stool, as emerging research is linking microbiome to many different diseases. However, preliminary trials have yielded mixed results and suggest that heterogeneity in donor stool may play a role patient response. Thus, fail because an ineffective was chosen rather than FMT not appropriate indication. Here, we describe conceptual framework...

10.1101/19000307 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2019-07-03
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