Effects of High-Dose Nicotinamide Riboside on White Fat Tissue Function and Insulin Sensitivity: Preclinical Findings

Synopsis Nicotinamide riboside (NR) is a vitamin that helps produce NAD+, a key molecule for metabolism. Although reports of negative effects from high doses of NR are rare, this study examined ho...

Effects of Senolytic Drugs on Human Stem-Like Cells: Preclinical Findings

Synopsis Senolytic drugs are believed to target and remove senescent cells, potentially rejuvenating tissues and improving health and lifespan in aging models. This study tested four senolytic com...

CD38 Deletion and Nicotinamide Riboside Supplementation Slow Axon Degeneration After Facial Nerve Injury: Preclinical Findings

Synopsis After facial nerve injury (axotomy), nerve function often does not fully recover due to axon degeneration, neuron death, and ongoing inflammation. CD38, an enzyme that breaks down NAD+, m...

Extracellular NAD+ Broken Down by Human Cells to Maintain Intracellular NAD+ Levels: Preclinical Findings

Synopsis Nicotinamide adenine dinucleotide (NAD+) is vital for cellular energy and signaling, and human cells replenish NAD+ by using extracellular precursors like nicotinamide (NAM), nicotinic ac...

Coronavirus Disrupts NAD+ Metabolism, While Nicotinamide Riboside Decreases Viral Replication: Preclinical Findings

Synopsis Certain enzymes called PARPs, which use NAD+ to modify proteins, play a role in the body’s defense against coronaviruses. Researchers found that SARS-CoV-2 infection increases the levels ...

Nicotinamide Riboside Demonstrates Cardioprotective Effects by Boosting Mitochondrial Stress Response: Preclinical Findings

Synopsis The mitochondrial unfolded protein response (UPRmt) helps cells manage misfolded proteins in mitochondria to maintain function. Cardiac mitochondria are essential for contractile function...

Gut Bacteria Support NAD+ Production: Preclinical Findings

Synopsis Nicotinamide adenine dinucleotide (NAD+) is essential for hundreds of cellular processes, including metabolism, DNA repair, and aging. How environmental factors affect NAD+ metabolism is ...

The Effects of NAD+ Boosting in Mitochondrial DNA Depletion Syndrome: Preclinical Findings

Synopsis Patients with mtDNA depletion syndrome 3 (MTDPS3) often die young from liver failure due to severely reduced mitochondrial DNA. Research into treatments has been difficult because MTDPS3 ...

Muscle Loss and Reduced Physical Performance in Emery–Dreifuss Muscular Dystrophy: Preclinical Findings

Synopsis Autosomal Emery–Dreifuss muscular dystrophy (EDMD) is caused by mutations in the lamin A/C gene (LMNA), which encodes nuclear envelope proteins. The disease typically causes muscle wastin...

CD38 Inhibitor Reverses Age-Related NAD+ Decline and Metabolic Dysfunction: Preclinical Findings

Synopsis Aging is characterized by the development of metabolic dysfunction and frailty. Recent studies show that a reduction in nicotinamide adenine dinucleotide (NAD+) is a key factor for the de...

Nicotinamide Riboside Enhances Muscle Growth and Fiber Density in Chicken Embryos: Preclinical Findings

Synopsis Researchers injected nicotinamide riboside (NR) into fertilized chicken eggs to study its effects on muscle growth. NR increased the weight, length, and width of the pectoral muscles in c...