Overview
Our lab has a long standing interest in liver injury and repair. To learn more about the mechanisms that regulate this process, we study cultured cells, animal models of acute and chronic liver damage and samples from patients with various types of liver disease. Our group also conducts clinical trials in patients with chronic liver disease. We are particularly interested in fatty liver diseases, such as alcoholic fatty liver disease and nonalcoholic fatty liver disease (NAFLD).
Research by our group has advanced understanding in two main areas: 1) immune system regulation of liver injury and regeneration and 2)the role of fetal morphogens, such as the hedgehog pathway, in regulating fibrotic responses to liver damage. Our basic research programs have been enjoyed continuous NIH support since 1989. We welcome students, post-doctoral fellows and visiting scientists who have interests in this research area to contact us about training opportunities and potential collaborations.
Since 2001 we have also been an active participant in the NIDDK-funded Nonalcoholic Steatohepatitis Clinical Research Network (NASH CRN), a national consortium comprised of 8 university medical centers selected to generate a national registry for patients with NAFLD and to conduct multicenter treatment trials for this disorder. We are actively recruiting patients for this program, as well as a number of other industry-supported NAFLD studies.
Research by our group has advanced understanding in two main areas: 1) immune system regulation of liver injury and regeneration and 2)the role of fetal morphogens, such as the hedgehog pathway, in regulating fibrotic responses to liver damage. Our basic research programs have been enjoyed continuous NIH support since 1989. We welcome students, post-doctoral fellows and visiting scientists who have interests in this research area to contact us about training opportunities and potential collaborations.
Since 2001 we have also been an active participant in the NIDDK-funded Nonalcoholic Steatohepatitis Clinical Research Network (NASH CRN), a national consortium comprised of 8 university medical centers selected to generate a national registry for patients with NAFLD and to conduct multicenter treatment trials for this disorder. We are actively recruiting patients for this program, as well as a number of other industry-supported NAFLD studies.
Current Appointments & Affiliations
Florence McAlister Distinguished Professor of Medicine
·
2005 - Present
Medicine, Gastroenterology,
Medicine
Professor of Medicine
·
2004 - Present
Medicine, Gastroenterology,
Medicine
Member of the Duke Cancer Institute
·
2004 - Present
Duke Cancer Institute,
Institutes and Centers
Affiliate of the Duke Regeneration Center
·
2021 - Present
Duke Regeneration Center,
Basic Science Departments
Recent Publications
Bile salt hydrolase activity as a rational target for MASLD therapy.
Journal Article Gut Microbes · December 31, 2026 Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most prevalent chronic liver disease in the United States, yet therapeutic options remain limited. Emerging evidence implicates the gut‒liver axis and intestinal permeability in diseas ... Full text Link to item CiteZinc-dependent RNA-binding protein controls hepatocyte senescence and recovery from alcohol-related liver failure.
Journal Article Gut · January 13, 2026 BACKGROUND: Why alcohol-associated liver disease (ALD) resolves after abstinence in most people but progresses to liver failure in others remains poorly understood. Experimental models show that increased exposure to proinflammatory cytokines exacerbates A ... Full text Link to item CiteAssociation of Components of Metabolic Syndrome and the Progression of Nonalcoholic Fatty Liver Disease.
Journal Article Am J Gastroenterol · January 1, 2026 INTRODUCTION: The effects of metabolic syndrome (MetS), its individual components, and baseline liver histology, on the rates of progression and regression of nonalcoholic fatty liver disease (NAFLD), were evaluated. METHODS: We conducted a post hoc analys ... Full text Link to item CiteRecent Grants
2/3 CTSA K12 Program at Duke University
ResearchMentor · Awarded by National Institutes of Health · 2025 - 2030TNF alpha and Recovery from Alcoholic Liver Injury
ResearchPrincipal Investigator · Awarded by National Institutes of Health · 2014 - 2030Targeting Hepatocyte Senescence to Improve NAFLD
ResearchMentor · Awarded by National Institute of Diabetes and Digestive and Kidney Diseases · 2024 - 2029View All Grants
Education, Training & Certifications
Georgetown University ·
1978
M.D.