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Full-Text Articles in Medicine and Health Sciences

Characterization Of The Mucosally-Adherent Duodenal Microbiome In Children With And Without Crohn's Disease., Kenneth Schmidt, Janelle R. Noel-Macdonnell Phd, Carrie Vyhlidal, Daniel P. Heruth, Vivekanand Singh, Atif A. Ahmed, Taina Hudson, Veronica Williams, Valentina Shakhnovich Jul 2022

Characterization Of The Mucosally-Adherent Duodenal Microbiome In Children With And Without Crohn's Disease., Kenneth Schmidt, Janelle R. Noel-Macdonnell Phd, Carrie Vyhlidal, Daniel P. Heruth, Vivekanand Singh, Atif A. Ahmed, Taina Hudson, Veronica Williams, Valentina Shakhnovich

Manuscripts, Articles, Book Chapters and Other Papers

Manipulation of the microbiome is a rational treatment strategy for inflammatory bowel disease (IBD). Compared to the colon and terminal ileum (TI), understanding of the microbial composition in the duodenum is sparse. This gap in knowledge is especially significant for children with Crohn's disease (CD) because the prevalence of duodenal CD is higher in children than in adults. Our aim was to characterize the bacterial composition of the mucosally-adherent duodenal microbiome in children with and without CD as a first step toward development of targeted IBD treatment strategies at this disease location. Fresh-frozen mucosal biopsies were obtained from the duodenum …


Gut Microbial Trimethylamine Is Elevated In Alcohol-Associated Hepatitis And Contributes To Ethanol-Induced Liver Injury In Mice, Robert N. Helsley, Tatsunori Miyata, Anagha Kadam, Venkateshwari Varadharajan, Naseer Sangwan, Emily C. Huang, Rakhee Banerjee, Amanda L. Brown, Kevin K. Fung, William J. Massey, Chase Neumann, Danny Orabi, Lucas J. Osborn, Rebecca C. Schugar, Megan R. Mcmullen, Annette Bellar, Kyle L. Poulsen, Adam Kim, Vai Pathak, Marko Mrdjen Jan 2022

Gut Microbial Trimethylamine Is Elevated In Alcohol-Associated Hepatitis And Contributes To Ethanol-Induced Liver Injury In Mice, Robert N. Helsley, Tatsunori Miyata, Anagha Kadam, Venkateshwari Varadharajan, Naseer Sangwan, Emily C. Huang, Rakhee Banerjee, Amanda L. Brown, Kevin K. Fung, William J. Massey, Chase Neumann, Danny Orabi, Lucas J. Osborn, Rebecca C. Schugar, Megan R. Mcmullen, Annette Bellar, Kyle L. Poulsen, Adam Kim, Vai Pathak, Marko Mrdjen

Pediatrics Faculty Publications

There is mounting evidence that microbes residing in the human intestine contribute to diverse alcohol-associated liver diseases (ALD) including the most deadly form known as alcohol-associated hepatitis (AH). However, mechanisms by which gut microbes synergize with excessive alcohol intake to promote liver injury are poorly understood. Furthermore, whether drugs that selectively target gut microbial metabolism can improve ALD has never been tested. We used liquid chromatography tandem mass spectrometry to quantify the levels of microbe and host choline co-metabolites in healthy controls and AH patients, finding elevated levels of the microbial metabolite trimethylamine (TMA) in AH. In subsequent studies, we …