Model: Cybrids composed of Rho0 cells with human platelet mitochondrial DNA from participants between 7 days old and 99 years old 
Dosage: 5 mM of n-Acetyl-L-Cysteine and 3 mM of nicotinamide riboside, with medium changed every three days until the cell population reached between 1 and 10 million

New Study: Combining NR with NAC May Slow Telomere Shortening

New research suggests that nicotinamide riboside (NR) combined with N-acetyl cysteine (NAC) prevents telomere shortening linked to genetic sequences within the cell’s powerhouse (mitochondria) in human cells.

(Telomeres [highlighted in gold] at the ends of a chromosome | NAD.com)

A new study suggests the NAD+ precursor NR combined with the antioxidant NAC may counteract telomere shortening, a hallmark of aging.

Aging &amp; Longevity

Participants: Healthy middle-aged adults (average age: 55)
Dosage: 100 mg/day of Monarda didyma L. extract, preferably at lunchtime with plenty of water, for 12 weeks

An extract made from Monarda didyma L. reduces the biological age of older adults while improving their quality of life. 

A flower from the Monarda didyma L. plant (image: nativeplanttrust.org) 

Clinical Trials

A vaccine targeting an enzyme that breaks down NAD+, called CD38, counteracts signs of aging in mice. 


Immunity

Model: Ten-month-old male EFAD mice 
Dosage: 14.4 ppm of alfatradiol in diet for five months

USC Study: Longevity-Promoting Drug Counteracts a Genetic Predisposition to Alzheimer's

The drug alfatradiol, also known as 17ɑ-estradiol, reduces cognitive errors on a test of memory and lowers neuronal plaques in mice genetically predisposed to Alzheimer’s disease.

(The University of Southern California | College Matchpoint)

Researchers unveil data suggesting the drug alfatradiol improves signs of frailty, reduces cognitive errors, and reduces neuronal plaques in mice with a genetic predisposition to Alzheimer’s disease.

Brain &amp; Neurons

Human studies show that a higher intake of the naturally occurring molecule spermidine may prevent cognitive impairments and dementia while improving longevity. 


Search Result: NAD

New Study: Combining NR with NAC May Slow Telomere Shortening

Flower Extract Slows Cellular Aging, New Study Shows

Anti-Aging Vaccine Boosts Strength, Memory & NAD+ in New Study

USC Study Suggests Longevity-Promoting Drug Counteracts a Genetic Predisposition to Alzheimer’s

Spermidine: A Promising Nutrient for Brain Health and Cognitive Aging