National Grand Rounds - June 2025
Includes a Live Web Event on 06/10/2025 at 12:00 PM (EDT)
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Vitamin A Toxicity
Presenter: Sherry A. Tanumihardjo, PHD, Professor of Nutritional Sciences, University of Wisconsin-Madison
Join ACMT on Tuesday, June 10, 2025 at 12pm ET for a National Grand Rounds featuring Dr. Sherry Tanumihardjo as she explores the complex topic of vitamin A toxicity. A renowned expert in nutritional sciences, Dr. Tanumihardjo will examine how excessive intake leads to hepatic accumulation, discuss current biomarkers relevant to vitamin A status and toxicity, and evaluate global supplementation guidelines in light of differing public health needs. This session will also address the World Health Organization’s recommendations for vitamin A use in measles treatment and explore why these may not be appropriate for clinical practice in the United States.
Learning Objectives:
- Describe metabolism of vitamin A and why it accumulates in the liver during excessive intake.
- Discuss biomarkers of vitamin A and those relevant to vitamin A toxicity.
- Evaluate the World Health Organization's recommendations for measles and why that might not be appropriate for the United States.
About The Series: ACMT's Grand Rounds offer an in-depth and interactive platform for learning and discussion about issues that impact the research and practice of medical toxicology. Experts from within and outside medical toxicology will share their knowledge and experience and highlight areas for collaboration and mutual understanding.
This webinar is for ACMT members only.
Sherry A. Tanumihardjo, PHD
Professor of Nutritional Sciences
University of Wisconsin-Madison
Sherry Tanumihardjo is a CALS professor of nutritional sciences and former director of the Undergraduate Certificate in Global Health, a popular program that draws participants from majors all across campus. She has four decades of experience working with vitamin A, and her research team has conducted studies in the United States, Indonesia, South Africa, Ghana, Burkina Faso, Malawi, and Zambia. Tanumihardjo has acted as a consultant to many studies throughout the world to assist with study design and appropriate standardization. She is a strong advocate for the promotion of nutritionally enhanced staple foods, vegetables and fruits to enhance overall health and well-being.
Nicholas E. Nacca, MD, FACMT (Moderator)
Assistant Professor of Emergency Medicine, Director of Medical Toxicology, Fellowship Director of Medical Toxicology Fellowship Program
University of Rochester Medical Center
Dr. Nicholas Nacca is the director of Medical Toxicology and Medical Toxicology Fellowship Director at the University of Rochester Medical Center. In addition to being faculty member in the Department of Emergency Medicine he holds a secondary appointment in the Department of Environmental Medicine. His primary role is staffing the educational and clinical medical toxicology consultation service, with educational responsibilities to medical toxicology fellows, multidisciplinary teams of medical residents, pharmacy residents and students, as well as medical students. He staffs and directs a referral based outpatient Medical Toxicology Clinic.
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