# NAD+ and Sirtuin-Activating Compounds: A Pathway to Healthspan Extension

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Sinclair Lab Research · 2016-11-01


    NAD+ and sirtuin-activating compounds (STACs) have shown potential to enhance healthspan and longevity. These compounds work by activating sirtuins, a family of proteins that play a crucial role in cellular health and aging. Research led by Prof. David Sinclair at Harvard Medical School highlights the significance of these compounds in preventing age-related diseases and improving overall organ function.

 What this study examined

The study conducted by Sinclair and colleagues focused on the effects of sirtuin-activating compounds and NAD+ precursors on various biological functions. The research utilized genetically modified mice that expressed additional copies of sirtuins, specifically SIRT1 and SIRT6. The primary outcomes assessed included improvements in organ function, physical endurance, disease resistance, and overall longevity. Additionally, human trials explored the safety and efficacy of STACs in treating inflammatory and metabolic disorders.

 Why this matters for longevity research

The findings from this study are significant for longevity research as they suggest that the activation of sirtuins through NAD+ and STACs could potentially extend lifespan and healthspan. By understanding the mechanisms through which these compounds operate, researchers can develop targeted interventions that may alleviate multiple age-related diseases. This research aligns with the growing interest in the biology of aging and the quest for therapies that can enhance quality of life as individuals age.

 Key findings

Sirtuins are NAD+-dependent deacylases that can prevent diseases and reverse aspects of aging.

Mice with additional copies of SIRT1 or SIRT6 exhibited improved organ function and longevity.

Sirtuin-activating compounds, such as resveratrol and SRT2104, have shown promise in enhancing physical endurance.

Research indicates that STACs may be effective in treating inflammatory and metabolic disorders.

Human trials suggest that STACs are safe for use and may have beneficial effects on health.

The study provides evidence that rationally designed molecules can alleviate multiple diseases.

Activation of sirtuins may represent a viable strategy for extending lifespan in humans.

 The science behind it

NAD+ (nicotinamide adenine dinucleotide) is a critical coenzyme involved in various metabolic processes, including energy production and DNA repair. Sirtuins, a family of proteins activated by NAD+, regulate cellular functions such as inflammation, stress responses, and metabolism. The activation of sirtuins has been linked to enhanced autophagy, a process that removes damaged cellular components, thus promoting cellular health. Furthermore, the interplay between NAD+, sirtuins, and the epigenetic clock offers insights into the biological mechanisms underlying aging and longevity.

 How it fits into the longevity field

This research fits into the broader context of longevity studies, which increasingly focus on molecular pathways that influence aging. Other interventions, such as caloric restriction and exercise, have also been shown to activate sirtuins and enhance healthspan. The exploration of STACs and NAD+ precursors contributes to a growing body of literature that seeks to identify effective strategies for promoting healthy aging. As the field evolves, understanding the synergies between different interventions will be crucial for developing comprehensive longevity therapies.

 Practical takeaways

For researchers and informed consumers, the implications of this study underscore the importance of exploring NAD+ and sirtuin-activating compounds as potential interventions for age-related diseases. Continued research into the mechanisms of action and efficacy of these compounds will be essential for translating findings into clinical applications. It is important to remain informed about ongoing studies and to consider the potential of these compounds as part of a broader strategy for extending healthspan.

 FAQ

 What are sirtuins?

Sirtuins are a family of proteins that depend on NAD+ to function and play a role in regulating cellular health and aging.

 How do sirtuin-activating compounds work?

Sirtuin-activating compounds enhance the activity of sirtuins, which may lead to improved cellular functions and potentially extend lifespan.

 Can NAD+ supplementation improve health?

Research suggests that NAD+ supplementation may activate sirtuins and improve various health outcomes, but further studies are needed to confirm these effects in humans.

 Source: PubMed · Nat Rev Mol Cell Biol · published 2016-11-01.

## Sources

- PubMed · Nat Rev Mol Cell Biol: https://pubmed.ncbi.nlm.nih.gov/27552971/