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George Sutphin is back! So many of you enjoyed Matt's interview with him back in March 2024 about 3HAA and NAD+ that we decided to bring him on the podcast once again to chat about the potential effects of oral NMN supplementation.

You may have heard of over-the-counter supplements aimed at boosting nicotinamide adenine dinucleotide (NAD+) levels. Underlying these supplements is the hypothesis that levels of NAD+, a central coenzyme found in all living cells and involved in innumerable biochemical reactions that include DNA repair, glycolysis, stress responses, and more, decrease with age. The decrease may be associated with aging and age-related disease, and restoring NAD+ levels via supplementation is therefore likely to increase health- and/or lifespan.

In this episode, Matt and George examine a recent finding that oral supplementation of NAD+ boosters increases molecular signatures that indicate kidney damage. They discuss the NAD+ signaling pathway, models for how NAD+ might drive kidney damage, how they would expand upon the study for further research, and more.

University of Arizona Assistant Professor of Molecular and Cellular Biology George Sutphin runs a lab that investigates genetic determinants of longevity, the effects of kynurenine-based interventions on lifespan, and environmental regulators of the aging process. George, who was an aerospace engineer before he discovered the promise of geroscience, completed his PhD at the University of Washington and worked as a postdoctoral associate at the Jackson Laboratory prior to his current faculty position. He currently serves as Chairperson of the American Aging Association.

Producers: Tara Mei, Nicholas Arapis

Video Editor: Jacob Keliikoa

DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.

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