Model: Young acquired niacin dependency (ANDY) mice. 
Dosage: 30 mg/kg/day of niacin

Mice engineered to have low body-wide NAD+ levels exhibit a shortened lifespan and widespread physical decline, which is largely reversed with the NAD+ booster niacin. 

NAD+ (nicotinamide adenine dinucleotide) levels were lower among older adults with frailty—an age-related condition associated with increased vulnerability to disability, disease, and death.

Skin &amp; Muscle

By examining chemical tags on DNA that modulate our genes, scientists have discovered which genes are most affected by aging across more than a dozen human tissues.

The study was led by Dr. Nir Eynon from the Australian Regenerative Medicine Institute (image: vu.edu.au). 

Epigenetics

The Overlooked Organ That Could Hold the Key to Fighting Aging

Scientists are researching ways to regrow the thymus, an immune organ that vanishes with age, to suppress the tolls of aging.

(The thymus [colored orange] is located in the upper chest | NAD.com)

An organ involved in immunity, the thymus, vanishes as people get older, and scientists are researching ways to regrow it to fight aging.

Immunity

Model: Female Balb/c mice exposed to ultraviolet radiation 
Dosage: 2%, 5%, 7.5%, or 12.5% of nicotinamide (weight/volume) applied topically, once daily, five times per week

The NAD+ (nicotinamide adenine dinucleotide) precursor nicotinamide prevents skin aging, in part by targeting age-promoting senescent cells in mice. 


Search Result: NAD Precursor

New Mayo Clinic Study: Forcibly Depleting NAD+ Shortens Lifespan

NAD+ Levels are Low Among Individuals with Frailty, New Japanese Study Shows

NAD+: One of Few Correctable Networks During Aging, New Study Shows

The Overlooked Organ That Could Hold the Key to Fighting Aging

NAD+ Booster Nicotinamide Counters Skin Aging and Cell Senescence, New Study Shows