Fact Meets Function

Alpha-ketoglutarate accelerates granulocyte-monocyte progenitor differentiation and atherosclerotic plaque inflammation via oxoglutarate receptor 1.

This animal study found that a high-fat diet increases alpha-ketoglutarate levels, which triggers a chain reaction that depletes NAD+ and NMN levels in immune cells. This depletion disrupts cellular energy production and increases inflammation, contributing to atherosclerosis (plaque buildup in arteries). The research suggests that maintaining adequate NAD+ and NMN levels may be important for cardiovascular health and controlling inflammation.

Alpha-ketoglutarate accelerates granulocyte-monocyte progenitor differentiation and atherosclerotic plaque inflammation via oxoglutarate receptor 1. Read Post »

Nicotinamide Mononucleotide Decreases Secretion of Proinflammatory Cytokines via the NAD + /SIRT1/p65 Axis.

This study found that NMN supplementation can reduce inflammation by blocking the release of inflammatory molecules from aging cells. When cells become senescent (aged and damaged), they normally secrete harmful inflammatory substances that contribute to chronic diseases and aging. NMN appears to prevent this inflammatory secretion by boosting cellular energy levels and activating protective proteins. This suggests NMN could help combat age-related inflammation and its associated health problems.

Nicotinamide Mononucleotide Decreases Secretion of Proinflammatory Cytokines via the NAD + /SIRT1/p65 Axis. Read Post »

Comparison of anti-aging effect of PQQ (Pyrroloquinoline quinone) and NMN/NR (Nicotinamide mononucleotide /Nicotinamide riboside) – possible combination use.

This review article compared the anti-aging mechanisms of pyrroloquinoline quinone (PQQ) and nicotinamide-based compounds (NMN/NR), examining their effects on cellular processes and exploring potential synergistic benefits of combined use (evidence level: review of existing literature). The analysis evaluated how these compounds influence mitochondrial function, NAD+ metabolism, and oxidative stress pathways that are implicated in aging processes. The review synthesizes existing research to discuss the theoretical rationale for combining these compounds, though it does not present new primary data on their combined efficacy.

Comparison of anti-aging effect of PQQ (Pyrroloquinoline quinone) and NMN/NR (Nicotinamide mononucleotide /Nicotinamide riboside) – possible combination use. Read Post »

Protective effect of nicotinamide mononucleotide against soybean isoflavone induced damage in mouse testis.

This animal model study investigated whether nicotinamide mononucleotide (NMN) could protect mouse testis tissue from damage induced by soybean isoflavones, examining potential mechanisms of cellular protection. The researchers found that NMN treatment provided protective effects against the testicular damage caused by isoflavone exposure in mice. This evidence is derived from an animal model study and therefore has limited direct applicability to human populations.

Protective effect of nicotinamide mononucleotide against soybean isoflavone induced damage in mouse testis. Read Post »

Association between blood nicotinamide adenine dinucleotide levels and blood laboratory parameters at baseline and after nicotinamide mononucleotide supplementation in middle-aged healthy individuals: post hoc analysis of a randomized, double-blinded, placebo-controlled clinical trial.

This post hoc analysis of a randomized, double-blinded, placebo-controlled human clinical trial examined the relationship between blood NAD+ levels and various laboratory parameters in middle-aged healthy individuals, both at baseline and following nicotinamide mononucleotide (NMN) supplementation. The study identified associations between NAD+ levels and specific blood biomarkers, with changes occurring after NMN supplementation in this population. **Evidence level: Human clinical trial**

Association between blood nicotinamide adenine dinucleotide levels and blood laboratory parameters at baseline and after nicotinamide mononucleotide supplementation in middle-aged healthy individuals: post hoc analysis of a randomized, double-blinded, placebo-controlled clinical trial. Read Post »

Distinctive Gene Expression Profiles and Biological Responses of Skin Fibroblasts to Nicotinamide Mononucleotide: Implications for Longevity Effects on Skin.

This human clinical study examined how nicotinamide mononucleotide (NMN) affects gene expression and biological responses in skin fibroblasts, with the goal of understanding potential longevity-related effects on skin. The researchers identified distinctive gene expression profiles in fibroblasts exposed to NMN and characterized the resulting biological responses that may be relevant to skin aging processes. This is human clinical-level evidence investigating NMN’s direct molecular effects on skin cells involved in collagen and structural protein production.

Distinctive Gene Expression Profiles and Biological Responses of Skin Fibroblasts to Nicotinamide Mononucleotide: Implications for Longevity Effects on Skin. Read Post »

Beta-Hydroxybutyrate but not NMN supplementation mimics caloric restriction reducing early mortality in Daphnia.

This study compared the effects of beta-hydroxybutyrate and NMN supplementation against caloric restriction in *Daphnia* (aquatic organisms), finding that beta-hydroxybutyrate supplementation replicated caloric restriction’s effect on reducing early mortality, while NMN supplementation did not produce similar benefits (animal model). The research suggests differential efficacy between these two proposed longevity interventions in this model organism, though findings in *Daphnia* may not directly translate to human physiology (animal model evidence level).

Beta-Hydroxybutyrate but not NMN supplementation mimics caloric restriction reducing early mortality in Daphnia. Read Post »

NAD World 3.0: the importance of the NMN transporter and eNAMPT in mammalian aging and longevity control.

This preclinical review examines the role of the NMN transporter and extracellular NAMPT (eNAMPT) enzyme in mammalian aging and longevity, focusing on how NAD+ biosynthesis pathways regulate cellular aging processes. The authors discuss evidence from animal models and in vitro studies demonstrating that efficient NMN transport and eNAMPT activity influence NAD+ availability and may affect age-related physiological decline. This is a review-level analysis synthesizing existing preclinical research rather than reporting new primary experimental findings.

NAD World 3.0: the importance of the NMN transporter and eNAMPT in mammalian aging and longevity control. Read Post »

A biocompatible polydopamine platform for targeted delivery of nicotinamide mononucleotide and boosting NAD+ levels in the brain.

Research Summary

This animal model study investigated a polydopamine-based delivery system designed to transport nicotinamide mononucleotide (NMN) across the blood-brain barrier and increase NAD+ levels in brain tissue. The researchers developed and tested this biocompatible nanoplatform in animal models and found that the delivery system successfully enhanced NAD+ accumulation in the brain compared to unformulated NMN. This work represents early-stage research demonstrating a potential mechanism for improving brain bioavailability of NMN through nanotechnology-based delivery approaches.

A biocompatible polydopamine platform for targeted delivery of nicotinamide mononucleotide and boosting NAD+ levels in the brain. Read Post »

Long-term NMN treatment increases lifespan and healthspan in mice in a sex dependent manner.

This study examined the long-term effects of nicotinamide mononucleotide (NMN) supplementation on lifespan and healthspan in mice, finding that NMN treatment extended both measures, though the effects differed between male and female mice (animal model evidence). The sex-dependent response suggests that biological sex influences how organisms respond to NMN supplementation at the systemic level.

**Evidence level:** Animal model (mouse study)

Long-term NMN treatment increases lifespan and healthspan in mice in a sex dependent manner. Read Post »

Nicotinamide Mononucleotide Supplementation: Understanding Metabolic Variability and Clinical Implications.

This review article examined nicotinamide mononucleotide (NMN) supplementation and the metabolic variability observed in response to NMN treatment across different populations and conditions. The review found that individual differences in NAD+ metabolism, age, genetic factors, and baseline metabolic status significantly influence how people respond to NMN supplementation, with implications for personalizing potential therapeutic applications. **Evidence level: Review article** (synthesizes existing literature rather than presenting original human clinical or experimental data).

Nicotinamide Mononucleotide Supplementation: Understanding Metabolic Variability and Clinical Implications. Read Post »

Role and Potential Mechanisms of Nicotinamide Mononucleotide in Aging.

This review article examined the role of nicotinamide mononucleotide (NMN) in aging processes and explored potential biological mechanisms through which NMN may influence age-related changes (Review). The authors synthesized evidence suggesting NMN acts as a NAD+ precursor that may affect cellular energy metabolism, mitochondrial function, sirtuins, and DNA repair pathways implicated in aging.

Role and Potential Mechanisms of Nicotinamide Mononucleotide in Aging. Read Post »

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