While improving immune health, the NAD+ (nicotinamide adenine dinucleotide) precursor NR (nicotinamide riboside) may induce anxiety-like behavior in stressed, aged mice. 


The study was funded by the National Institute on Aging, one of the National Institutes of Health (NIH). 

Immunity

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

Model: 8 adults with peripheral artery disease 
Dosage: 1,000 mg of NR daily for four weeks

New Study Suggests NR Modestly Improves Cognition in Age-Related Vascular Disease

Taking NR was associated with improved blood flow to a specific brain region following cognitive stimulation, as well as trends toward enhanced cognition in patients with age-related vascular disease.

(The study’s principal investigator, Andriy Yabluchanskiy | LinkedIn)

Taking NR is associated with improved blood perfusion to a brain region involved in memory and daily task organization, as well as a trend toward enhanced cognition.

Brain &amp; Neurons

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Longevity Prescription: Diet, Fasting, and Proven Anti-Aging Strategies

Model: Two-month-old male C57BL/6J mice fed a high-fat diet to induce obesity 
Dosage: 400 mg/kg/day of NR for eight weeks

Scientists find that NR (nicotinamide riboside) supplementation preserves brown fat tissue in mice, reducing their body weight and maintaining the health of their mitochondria. 

An artist’s rendering of a brown fat cell (image: Alioui Ma/shutterstock.com). 

Search Result: NAD Precursor

Anti-Aging NAD+ Precursor Supplement May Promote Anxiety, New Study Shows

New Study: Combining NR with NAC May Slow Telomere Shortening

New Study Suggests NR Modestly Improves Cognition in Human Subjects

Longevity Prescription

NAD+ Precursor NR Preserves Longevity-Promoting Cells, New Study Shows