NAD+ Precursors and Healthy Aging Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in all living cells. It is a critical coenzyme for energy metabolism and also serves as the substrate for enzymes such as the sirtuins. One of the hallmarks of aging is declining cellular NAD+ levels. Moreover, many studies carried out in different […]
Category Archives: Research
Overview Currently, available evidence strongly supports the idea that anabolic signaling (the signal that promotes growth and proliferation) accelerates aging, and decreased nutrient signaling extends longevity (Fontana et al., 2010). Further, a pharmacological manipulation that mimics a state of limited nutrient availability, such as rapamycin, can extend longevity in mice (Harrison et al., 2009). In […]
This recently published research by Drs. Lindsay Wu, David Sinclair and others examined the pathways that oral NMN takes to becoming NAD+ in mice. It confirmed some aspects of earlier research, and also made some surprising new findings. https://assets.researchsquare.com/files/rs-87047/v1_stamped.pdf Several experiments were completed that all measured NAD+ metabolites in the Gastrointestinal Tract (GIT) and Liver, […]
This recent study found that in endothelial cells, the extracellular conversion of NMN to NR by CD73 enzyme in the cell membrane is a key mechanism to maintain intracellular NAD+ Reversal of endothelial dysfunction by nicotinamide mononucleotide via extracellular conversion to nicotinamide riboside Like prior studies (1), they found that this transport method did not […]
Much of the attention on the benefits of restoring NAD+ levels focus on its role in activating sirtuins. However, scientific research shows that NAD supplementation has a clear beneficial effect not only on ageing itself but also on a vast range of age-related disorders through improving the levels of ATP. Declining ATP as we age […]
Restoring NAD+ levels in older animals and humans is at the center of efforts to slow or even stop the effects of aging. One method being researched is providing supplements such as Nicotinamide Riboside (NR) that the body can use to create NAD+. The chart above is from this study published in August 2019 by […]
This study fed lactating mice Nicotinamide Riboside (NR) in chow for 21 days after birth of offspring to measure the effect on the health of their pups who did not receive any NR. After 21 days, the pups were removed from the mothers and fed normal chow. These improvements in health and behavior persisted for […]
Yes, NMN can cross the cell membrane intact This research was just published that found an enzyme named Slc12a8 that can transport a small quantity of Nicotinamide Mononucleotide (NMN) directly into some cells However, this enzyme is only prevalent in the small intestine of older, sicker animals and humans. The Slc12a8 enzyme was just discovered […]
Exogenous nicotinamide adenine dinucleotide regulates energy metabolism via hypothalamic Connexin 43. This study shows that administration of 1 mg/kg of LABELED NAD+ crosses the blood brain barrier to enter the hypothalamus INTACT, increases NAD+ levels, reduces hunger and weight gain, and increases energy expenditure and fat burning in mice. This study shows that increased NAD+ […]
Effects of Chronic NAD Supplementation on Energy Metabolism and Diurnal Rhythm in Obese Mice In a study published in 2018, scientists gave obese mice 1 mg/kg of NAD+ by inter peritoneal injection for 4 weeks, which restored NAD+ levels in the hypothalamus to normal levels. 1 The hypothalamus is the master regulator of metabolism. Decreased levels […]