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2022 Dalen Lecture: The Microbiome in Health and Disease

Fayez K. Ghishan, MD

Fayez K. Ghishan, MD

Join us on Tuesday April 5th, 2022 at 12:00pm for the 2022 Dalen Lecture:

The Microbiome in Health and Disease

Presented by Fayez K. Ghishan, MD
Dr. Ghishan, a board-certified pediatric gastroenterologist at the UArizona College of Medicine – Tucson, ranks as an internationally recognized expert in gastroenterology and related clinical research. His laboratory has been in the forefront of research on the microbiome and nutrition in children, work that has resulted in hundreds of publications and numerous awards.

Dr. Ghishan will be discussing the role of gut microbiota in the health and disease state. The concept of eubiosis and dysbiosis will be discussed.  Our gastrointestinal tract is home for tens of trillions of microorganisms encompassing more than 500 different species of bacteria, resulting in more than 3.3 million bacterial genes compared to the 23,000 genes in our human body. His lab in the Steele Children’s Research Center at the University of Arizona has been pioneering the role of transport proteins of electrolytes and nutrients in the gastrointestinal tract and determining the changes in our gut microbiome that result from knocking out these proteins. This lecture will introduce the audience to the bacterial diversity present in humans. Greater bacterial diversity is associated with the microbiota’s ability to deal with stressors such as opportunistic pathogens or dietary perturbations. The role of diet and lifestyle in shaping our gut microbiota into a eubiotic state will be discussed.  Suggestions will be given as to dietary changes that allow us to live in harmony with our bacterial flora. The role of pre- and probiotics will also be addressed. Our understanding of the gut microbiota truly can influence our path to personalized good health.

April 5, 2022
Zoom Lecture: 12:00pm - 1:00pm, Q&A to follow lecture
Free and open to the public.

Learn more about the James E. Dalen, MD, MPH, Distinguished Lecture for Health Policy here.

Register here: 
Pre-registration is required

Questions may be directed to Katie Lupo at or 520-626-2948.

Event Details

Event Date:

Tuesday, April 5, 2022 - 12:00 pm to 1:00 pm

Event Location:

Online Event

Contact Information:

Katie Lupo

Contact Phone:


Contact Email:

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