Thomas Wallach MD

Thomas Wallach , MD

Assistant Professor, Research Director
Pediatric Gastroenterology

    Dr. Thomas Wallach is a physician scientist in the division of Pediatric Gastroenterology.  He earned his medical degree at the Medical College of Wisconsin, then completed a pediatric residency at Columbia University, followed by an extended research fellowship in Pediatric Gastroenterology at the University of California, San Francisco.  During his fellowship Dr. Wallach pursued research focused on the regulation of the intestinal epithelial barrier, as well as advanced training in pain medicine with a focus on diseases of gut-brain interaction.

    Dr. Wallach is an expert on diseases of the intestinal epithelial barrier, with a specific focus on diseases of gut-brain interaction like irritable bowel syndrome, or other non-inflammatory causes of abdominal pain.  He also has notable expertise in IBD, celiac disease, and liver diseases.

    His research focuses on the intersection of intestinal epithelial behavior and outcomes such as poor growth and pain.  

    Kummerlowe C, Mwakamui S, Hughes TK, Mulugeta N, Mudenda V, Besa E, Zyambo K, Fleming I, Vukovic M, Doran B, Bramante JT, Uchida AM, Garber JJ, Ordovas-Montanes J, Gartner Z, Shalek AK, Kelly P, Wallach T. “Single-cell profiling of environmental enteropathy reveals signatures of epithelial remodeling and immune activation in severe disease.” Science and Translational Medicine, 2022

    Zhu KJ, Suttner B, Knee J, Capone D, Moe CL, Stauber CE, Konstantinidis KT, Wallach TE, Pickering AJ, Brown J. “Elevated fecal mitochondrial DNA from symptomatic norovirus infections suggests potential health relevance of human mitochondrial DNA in fecal source tracking” Environmental Science & Technology Letters, 2022

    Arostegui D, Castro K, Schwarz S, Vaidy K, Rabinowitz S, Wallach T. “Persistent SARS-CoV-2 Nucleocapsid Protein Presence in the Intestinal Epithelium of a Pediatric Patient 3 Months After Acute Infection”. JPGN Reports, 2022


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