Division of Gastroenterology, Hepatology and Nutrition A Department of Pediatrics Program


Ariel Feldstein, MD is investigation the biochemical pathways of cell death triggers by over-accumulation of fatty acids and other lipids in the liver and other organs, which may play an important role in disease processes such as obesity-associated liver disease (nonalcoholic steatohepatitis or NASH), and type 2 diabetes. Read More

Lars Bode PhD conducts research that focuses on elucidating functions and biosynthesis of human milk oligosaccharides. These complex glycans are highly abundant in human breast milk, but not in infant formula. Read More

Kerri Boutelle Ph.D. performs research focusing on the causes, characterization, prevention and treatment of childhood and adolescent obesity and eating disorders. Read More

Lillian Choi, MD, is investigating therapeutic advanced endoscopy and the assessment of S-adenosylmethionine for the treatment of recurrent abdominal pain. Read More

Ranjan Dohil, MB, BcH is primarily interested in acid-peptic disease. He is interested in the acid-secretogogue, cysteamine, which is presently used as the only FDA-approved treatment for cystinosis. Read More

M. Abigail Garcia, MD aims to understand the consequences of diminished bicarbonate transport in CF and how this affects development of mucoviscidosis. Read More

Jeannie Huang, MD, MPH currently leads and collaborates on several highly innovative health intervention projects addressing personal health behaviors and public health issues, including texting, web-technologies, and social networking platforms. Read More

Sherry Huang, MD is the Director of the Pediatrics Residency Program, and is involved in studies of kindreds with early colon cancer risk, with particular interest in patients with hamartomatous polyposis syndromes. Read More

Martin Kagnoff, MD (Emeritus) is the Director of the Warren Medical Research Center for Celiac Disease and the Laboratory of Mucosal Immunology at UCSD. He has served as Editor for two biomedical research journals and is currently the Chairman of the Immunology, Microbiology, and Inflammatory Bowel Disease section of the American Gastroenterological Association. Read More

Kimberly Newton, MD is primarily interested in the investigation of gut microflora and its relationship to celiac disease onset, in addition to the evaluation of potential biomarkers for monitoring celiac disease activity and dietary compliance. Read More

Paulina Ordonez, MD interested in using patient specific induced pluripotent stem cells (iPSC) to create models of disease. The Ordonez lab is currently exploring the underlying mechanisms and the contribution of these pathological phenotypes to the development of disease, and pursuing drug screening studies aimed at finding new therapies for NPC1 and related disorders. Read More

Jeffrey Schwimmer, MD is Director of the Weight and Wellness Center and Fatty Liver Disease Clinica and is researching the complications of obesity, both metabolic and behavioral; he is also working to identify genes and familial factors that determine susceptibility to fatty liver - the most common cause of chronic liver disease in children. Read More

Warren Shapiro, MD continues to be interested in functional GI disorders. He implemented a GI Biofeedback Clinic at Kaiser, which has had significant success in helping the difficult cases. He inaugurated a similar clinic at RCHSD. Read More

Mamata Sivagnanam, MD research focuses on congenital tufting enteropathy. This is a severe and life-threatening problem presenting with intractable diarrhea in infancy. Read More

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