While all three precursors – Niacin, NR, and NMN – elevate NAD+ levels, their journeys within the body are distinct. Understanding these individual pathways is crucial, as they may have significant effects on outcomes beyond just the NAD+ level itself.
Tag Archives: nr
“We have demonstrated that this methodology can accurately quantitate NMN levels in mouse plasma and confirmed quick, direct NMN uptake into blood circulation and cells.”
This study evaluated the safety and effects of high-dose (3,000 mg) Nicotinamide Riboside (NR) supplementation in patients with Parkinson’s Disease (PD).
This study showed that NR (1 g/day) for 10 weeks is safe in adults with MCI and effectively increased blood levels of NAD+.
Circadian rhythm is your body’s internal clock that permits anticipation of daily patterns, regulating when it’s time to sleep, wake up, eat, and digest. This study evaluated the effects of NR supplementation on age-related changes in the heart’s circadian rhythm.
This study evaluated the effects of Apigenin and Nicotinamide Riboside (NR) on factors associated with gouty arthritis.
NR Preserved Intestinal Lining Integrity During Excessive Alcohol Intake
“In particular, the intestine, as the main organ of ethanol absorption, is susceptible to serious injury from excess drinking.”
When mice were given alcohol without NR supplementation, it led to higher levels of intestinal contents entering their bloodstream, suggesting damage to the intestinal lining.
NR injections boosted NAD+ levels in skeletal muscle and white adipose tissue.
A ~140% increase in muscle NAD+ was observed after 7 days of IV administration of NR. Oral administration failed to increase NAD+ levels compared to the control group (figure A).
“But until now, it was unknown whether NR reached targeted organs like the brain to have a real therapeutic effect,” according to Christopher Martens, one of the key researchers in this study, and the director of the Delaware Center for Cognitive Aging Research.
Thus, circulating host NAM enters the gut lumen and is used by the microbiome for both NAD and NA synthesis.
Thus, gut microbiota provide an alternative route from NAM to NAD, bypassing the salvage synthesis pathway, in intestine and liver
Orally delivered NR was found in the GI tract but not in other peripheral tissues, indicating rapid metabolism of NR before it enters the circulation (Figure S4A). Only a small fraction of NAD in the liver and small intestine was M+9, indicating minimal direct assimilation of NR
A recent article in sciencedaily.com took some research out of context and wrote a review with a click-bait title that caused a lot of uproar as others repeated the faulty review. Here is the title of the original research: “A bioluminescent-based probe for in vivo non-invasive monitoring of nicotinamide riboside uptake reveals a link […]
The ability to repair DNA damage decreases over time, causing an accumulation of mutations that can affect cellular function, viability, and an increase in the aging process. In a new study, mice engineered to age quickly were tested to see which compounds were best at promoting DNA repair. Nicotinamide Riboside (NR) shown to increase lifespan […]
- 1
- 2