Tomlinson Equine Hepatitis Laboratory
The Tomlinson Equine Hepatitis Laboratory at New Bolton Center is focused on understanding causes of liver disease in horses and donkeys and developing new approaches to prevention, diagnosis, and treatment.

About Us
At the Tomlinson Laboratory, we are focused on understanding the pathogenesis and management of liver disease in horses through basic and applied (clinical) research.
We take a multidisciplinary approach to the study of liver disease, including:
- Developing and refining imaging tests and biomarkers to assess liver fibrosis, one of the main drivers of liver failure
- Characterizing equine liver viruses and how they cause disease
- Studying the molecular and immune processes that contribute to liver disease
- Surveying horse populations to determine the impact of liver disease on horse health and strategies to minimize risks

Clinical Study Enrollment
With funding from the American Association of Equine Practitioners we are currently enrolling horses with liver disease. If you are able to bring your horse to New Bolton Center for evaluation and are interested to learn more about participating, please contact Joy Tomlinson, DVM, PhD, DACVIM at joytom@vet.upenn.edu.

Our Research
Liver disease is an under recognized but potentially serious medical condition affecting horses of all ages and breeds. Our research is currently focused in 4 main areas:
- Viral hepatitis
- High GGT syndrome of racehorses
- Hepatitis in donkeys
- Improving diagnostic tests for equine liver disease
Clinical Practice
Dr. Tomlinson’s clinical work as a Large Animal Internal Medicine specialist facilitates translation of this research from the bench to the clinic floor. Tomlinson sees and treats patients with liver disease through the Internal Medicine Service at New Bolton Center, and she offers remote case consultations through attending veterinarians.

DIRECTOR, TOMLINSON EQUINE HEPATITIS LABORATORY
Joy E. Tomlinson, DVM, PhD, DACVIM (LAIM)
Assistant Professor of Large Animal Medicine (CE)
Join Us Today
The Tomlinson Equine Hepatitis Laboratory at New Bolton Center is focused on understanding causes of liver disease in horses and donkeys and developing new approaches to prevention, diagnosis, and treatment.
Find Us
University of Pennsylvania
School of Veterinary Medicine
New Bolton Center
382 West Street Road
Kennett Square, PA 19348