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

Aging Clocks Applied to Human Trial Data Support AI-Designed Drug Lowering Age

Six proteomics-based aging clocks (age assessments from large-scale analyses of proteins) agreed that patients treated with the AI-designed drug rentosertib appeared younger.

(A vial containing rentosertib tablets | New York Times)

The AI-designed drug rentosertib was shown to lower biological age across six aging clocks in patients with idiopathic pulmonary fibrosis.

Aging &amp; Longevity

Model: Chronically stressed mice 
Dosage: 9 mg/kg/day of L-serine, or 5 mg/kg/day of dasatinib combined with 50 mg/kg/day of quercetin

Supplementing chronically stressed mice with L-serine, an amino acid, counters signs of anxiety and diabetes while diverting age-promoting senescent cells within the brain’s fear center. 

Diabetes &amp; Obesity

Model: 6-week-old ICR mice
Dosage: 250 mg/kg per day or 500 mg/kg per day of glucosamine and 100 mg/kg per day or 200 mg/kg per day of aspirin for either eight (acute alcohol exposure model) or 40 days (chronic alcohol exposure model)

New Study Supports Repurposing Glucosamine Against Liver Aging

A sugar-like compound found in cartilage called glucosamine reduces dysfunctional cells (senescent cells) in the liver and attenuates liver damage from alcohol consumption in mice.

(Glucosamine capsules | MedicalNewsToday)

Glucosamine alleviates liver damage from alcohol consumption in mice, supporting its potential for use against alcoholic liver disease.

Search Result: NAD supplementation

NAD+ Depletion Shortens Lifespan in Mice—but Restoring NAD+ Reverses Health Decline: New Mayo Clinic Study

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

Aging Clocks Applied to Human Trial Data Support AI-Designed Drug Making People Younger

Cheap Supplement May Counter Stress-Induced Diabetes, Anxiety, and Brain Senescence, According to New Study

New Study Supports Repurposing Glucosamine Against Liver Aging and Alcoholic Liver Disease