Collective Insights Blog

Transcript: Valter Longo Interview on the Science of Longevity

Transcript: Valter Longo Interview on the Science of Longevity

There is so much advice on longevity and aging that it can be hard to sort through all of the information. In this podcast transcript we dive into the science-backed approaches for living a longer and healthier life. Valter Longo, Ph.D., has thirty years of experience in longevity and healthy eating, and is one of the world’s experts in the field.

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 How is NAD+ Made? Preiss-Handler Pathway

How is NAD+ Made? Preiss-Handler Pathway

In 1958, Jack Preiss and Philip Handler published a scientific paper describing how NAD+ was made from niacin in three steps.(1) This pathway was later named the Preiss-Handler pathway after the co-discoverers. It describes the enzyme steps needed to convert niacin into the NAD+ molecule.

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How is NAD+ Made? Salvage Pathway

How is NAD+ Made? Salvage Pathway

The salvage pathway is used to produce NAD+ from nicotinamide molecules. Whether the source of the nicotinamide is vitamin B3 (as niacinamide), newer nicotinamides (e.g., nicotinamide riboside [NR], nicotinamide mononucleotide [NMN]), or molecules in food that get broken down during digestion into nicotinamide, the salvage pathway turns them into NAD+ in our tissues.

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How is NAD+ Made? De Novo Synthesis

How is NAD+ Made? De Novo Synthesis

Key Learning Objectives

  • Start to appreciate why redundancy is important in living systems.
  • Introduce the three pathways used to make NAD+.
  • Discover how L-tryptophan at breakfast influences what happens at night.
  • Learn about how L-tryptophan is used to make NAD+. 
  • Find out which dietary nutrients support making NAD+ from L-tryptophan
  • Understand why preventing a build-up of quinolinic acid (QA) is important.

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Anti-Aging Benefits of Intermittent Fasting

Anti-Aging Benefits of Intermittent Fasting

In Silicon Valley, the hub of anti-aging research and funding, countless entrepreneurs and high-profile celebrities use fasting to combat the effects of aging. In Anti-Aging Benefits of Fasting, we will explore the mechanisms that create these fasting benefits. This part is more scientific than the others, but we emphasize only crucial components in an easily digestible format.

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