Nicotinamide Riboside Supplementation Partially Restores Sense of Smell in Aging: Preclinical Findings

SynopsisLoss of smell is an early and common feature of both aging and neurodegenerative diseases such as Alzheimer's and Parkinson's. This study investigated behavioral and molecular changes in th...

Nicotinamide Riboside Restores NAD+ and Prevents Age-Related Bone Loss: Preclinical Findings

SynopsisAge-related osteoporosis happens because of a decline in osteoblasts—the cells that build bone—and fewer osteoblast progenitor cells, which show signs of aging called senescence. FoxO trans...

Nicotinamide Riboside Restores NAD+ and Improves Survival of Neurons with Autophagy Defects: Preclinical Findings

SynopsisAutophagy is a cellular recycling process vital for neuron survival, and its failure contributes to neurodegenerative diseases. This study generated human neurons lacking the autophagy gene...

Nicotinamide Riboside Protects Mitochondria in Aging Kidneys: Preclinical Findings

SynopsisAs kidneys age, their cells, especially in the distal tubules, undergo changes in mitochondrial structure and function, but little is known about how aging or anti-aging interventions affec...

Nicotinamide Riboside Prevents Age-Related Hearing Loss: Preclinical Findings

SynopsisAge‐related hearing loss (ARHL) is the most common sensory disability associated with human aging. Yet, there are no approved measures for preventing or treating this debilitating condition...

Nicotinamide Riboside Increases Stress Sensitivity and Alters Blood Cell Composition in Aging: Preclinical Findings

SynopsisNicotinamide riboside (NR) is a precursor to NAD⁺, a key molecule for cellular energy that declines with age. Aging can cause reduced brain and immune function, changes in blood, and greate...

Nicotinamide Riboside Improves Muscle Quality and Cellular Energy: Preclinical Findings

SynopsisNAD+, crucial for mitochondrial energy production, declines with age, potentially reducing physical performance. This study tested short-term NR supplementation in middle-aged mice and its ...

Nicotinamide Riboside Improves Mitochondrial Health in Werner Syndrome: Preclinical Findings

SynopsisWerner syndrome (WS) is a rare accelerated aging disease caused by mutations in the WRN gene, leading to metabolic problems and premature cell aging. This study found that loss of WRN incre...

Nicotinamide Riboside Improves Blood Cell Formation in Aging and Ataxia Telangiectasia: Preclinical Findings

SynopsisNAD+ supplements can boost mitochondrial health and DNA repair, which benefits stem cells in aging or disease. This study tested nicotinamide riboside (NR) in mice with reduced blood stem c...

Nicotinamide Riboside Boosts NAD+ to Improve Telomere Stability: Preclinical Findings

SynopsisTelomere biology disorders (TBDs), such as dyskeratosis congenita (DC), are characterized by critically short telomeres and often lead to bone marrow failure. A key metabolic molecule, NAD+...

Comparison of Metformin and Nicotinamide Riboside in Reducing Tissue Aging: Preclinical Findings

SynopsisMetformin (MET) and nicotinamide riboside (NR) both have potential anti-aging effects, but how they work in different tissues isn't fully clear. This study showed that MET and NR reduce sig...

Cockayne Syndrome Proteins Maintain Mitochondrial Health Through NAD+ Signaling: Preclinical Findings

SynopsisCockayne syndrome (CS) is a rare premature aging disorder involving DNA repair defects and mitochondrial dysfunction. Across human, mouse, and nematode models, mitochondrial dysfunction was...

CD38 Causes Age-Related NAD+ Loss and Mitochondrial Dysfunction: Preclinical Findings

SynopsisNAD+ levels decrease with aging and are involved in age-related metabolic decline. To date, the mechanism responsible for the age-related reduction in NAD+ has not been elucidated. This stu...

Autophagy Promotes Cell Survival by Maintaining Stable NAD+ Levels: Preclinical Findings

SynopsisAutophagy is a cellular process that removes damaged parts of the cell and is important for healthy aging. When autophagy is lost, NAD+ levels fall due to increased activity of enzymes that...

17-α-Estradiol Extends Male Mouse Lifespan, While Nicotinamide Riboside Shows No Significant Effect: Preclinical Findings

SynopsisIn genetically diverse mice, the “non-feminizing” estrogen 17-α-estradiol (17aE2) increased median male lifespan by 19% when started at 16 months and by 11% when started at 20 months. It al...

Nicotinamide Riboside Restores NAD+ Levels and Improves Metabolism in Diastolic Heart Failure: Preclinical Findings

Synopsis Heart failure with left ventricular diastolic dysfunction is a growing health problem worldwide. This study looked at levels of NAD+, a key metabolic cofactor, in the hearts of patients w...

NAD+ Replenishment Prevents Thymus Atrophy and Liver Fat Accumulation: Preclinical Findings

Synopsis Dioxin (TCDD) is a highly toxic chemical that causes serious health problems like wasting, liver fat buildup, and thymus shrinkage in animals. Its toxic effects happen when it activates a...

NAMPT Deficiency in Mouse Liver Cells Shows Minimal Impact on NAD+ and Mitochondrial Health: Preclinical Findings

Synopsis Supplementation with NAD+ precursors such as nicotinamide riboside (NR) has been shown to improve mitochondrial function and prevent liver fat accumulation in high-fat diet (HFD)-fed rode...

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...

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 ...