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Overview of NAD+ Injection 

NAD+ Injection (Lyo) (Each)

1,000 MG, 500 MG

Nicotinamide Adenine Dinucleotide (NAD+) is a prevalent cellular electron transporter, coenzyme, and signaling molecule found in all cells of the body and is vital for cell function and viability.[1][2] Its reduced (NADH) and phosphorylated forms (NADP+ and NADPH) are as important as NAD+.[1][2] Each step of cellular respiration—glycolysis in the cytoplasm, the Krebs cycle, and the electron transport chain in the mitochondria—requires the presence of NAD+ and NADH, their redox partner.

The manufacture of cholesterol and nucleic acids, elongation of fatty acids, and regeneration of glutathione, a vital antioxidant in the body, are just a few anabolic processes that frequently require NADP+ and NADPH.[3] NAD+-dependent/-consuming enzymes modify proteins post-translationally in various cellular processes using NAD+ and its other forms as substrates.[1][2] NAD+ also acts as a precursor for cyclic ADP ribose, an essential component of calcium signaling and a secondary messenger molecule.[4]

The amino acid tryptophan and the vitamin precursors nicotinic acid and nicotinamide, often known as vitamin B3 or niacin, are used by the body to naturally produce NAD+. It can also be produced from biosynthetic intermediates including nicotinamide mononucleotide and nicotinamide riboside.[2][3] NAD+ is continuously recycled within cells as it transitions between its many forms through salvage mechanisms.[3] Mammalian cells may be able to take up extracellular NAD+, according to studies on cell culture.[5]

The highest NAD+ levels are found in neonates, and they gradually decrease with increasing chronological age.[6] They are around half of what they are in younger persons after age 50.[6] Model organisms have been used to study the subject of why NAD+ levels fall with aging.[7][8] However, during other metabolic activities, NAD+ is consumed by NAD+-dependent enzymes and may subsequently become depleted over time, contributing to increased DNA damage, age-related illnesses and diseases, and mitochondrial malfunction. During redox reactions, NAD+ and NADH are not consumed but rather continually regenerated.[2][6] Views of aging and senescence frequently highlight a deterioration in mitochondrial health and function with age, and investigations of NAD+ depletion and the associated oxidative stress and damage corroborate these theories.[1][2]

The age-related drop in NAD+ levels is caused by rising levels of CD38, a membrane-bound NADase that degrades both NAD+ and its precursor nicotinamide mononucleotide, according to a 2016 study in mice, which exhibit age-related declines in NAD+ levels similar to those seen in humans.[7] The study also demonstrated that human adipose tissue from older adults (mean age, 61 years) expresses the CD38 gene at higher levels than that of younger adults (mean age, 34 years).[7] Other research in mice, however, has shown that oxidative stress and inflammation brought on by aging lower NAD+ production.[8] Therefore, it is likely that a number of mechanisms work together to cause individuals to lose NAD+ as they age.

When it was recognized that pellagra, a condition marked by diarrhea, dermatitis, dementia, and mortality, could be treated with foods containing NAD+ precursors, particularly vitamin B3, the clinical significance of maintaining NAD+ levels was established in the early 1900s.[9] Notably, the skin does not flush with NAD+ injection, in contrast to vitamin B3 (niacin) intake, which also causes this negative effect.[10] Low NAD+ levels have recently been associated with a variety of age-related ailments and diseases linked to increased oxidative/free radical damage, including diabetes, heart disease, vascular dysfunction, ischemic brain injury, Alzheimer’s disease, and vision loss.[11][8][12][13][14][15][16][17]

Since a 1961 report by Paul O’Hollaren, MD, of Shadel Hospital in Seattle, Washington, NAD+ IV infusion has been widely utilized for the treatment of addiction.[18][19][20] In more than 100 instances, Dr. O’Hollaren detailed the effective use of IV-infused NAD+ for the prevention, relief, or treatment of acute and chronic symptoms of addiction to a range of substances, including alcohol, heroin, opium extract, morphine, dihydromorphine, meperidine, codeine, cocaine, amphetamines, barbiturates, and tranquilizers.[18] The security and effectiveness of NAD+ treatment for addiction, however, have not yet been assessed in clinical trials.

NAD+-replacement therapy may encourage optimal mitochondrial function and homeostasis, genomic stability, neuroprotection, long life, and may help with addiction treatment.[1][2][3][20] Clinical trials assessing these effects in humans receiving NAD+ injection have not yet been published; nevertheless, many clinical trials assessing the effectiveness and safety of NAD+-replacement therapy or augmentation in the context of human disease and aging have recently been completed, and many more are currently underway.

Unknown are the precise mechanisms of NAD+ repair or enhancement for potential health benefits, such as supporting healthy aging and treating age-related illnesses, metabolic and mitochondrial diseases, and addiction.[1][2][3][20]

In order to prevent mitochondrial malfunction and sustain metabolic function/energy generation (ATP), NAD+ supplementation may counterbalance the age-related degradation of NAD+ and its precursor nicotinamide mononucleotide by NADases, particularly CD38.[7]NAD+ replenishment, however, appears to support a number of other metabolic pathways via NAD+-dependent enzymes in research involving human and animal models (as well as samples and cell lines).[1][2][3][20]

There are numerous well-known NAD+-dependent enzymes. Poly-ADP ribose polymerases (PARP 1–17) control nuclear stability and DNA repair.[1][3] cADP-ribose, ADP-ribose, and nicotinic acid adenine dinucleotides are produced by NADases CD38 and CD157 in Ca2+ signaling and intercellular immunological communication.[1][3] A family of histone deacetylases known as sirtuins (Sirt 1-7) controls a number of proteins involved in cellular metabolism, stress responses, circadian rhythms, and endocrine functions. Sirts have also been linked to longevity in model organisms and protective effects in cardiac and neuronal models.[1][3] A recently identified NAD+ hydrolase, Sterile Alpha and Toll/Interleukin-1 Receptor motif-containing 1 (SARM1), is implicated in the aging and regeneration of neurons.[21][22]

The mechanism of action of NAD+ replenishment has been somewhat clarified by research on progeroid (premature aging) disorders, which resemble the clinical and molecular aspects of aging. It is believed that the Werner syndrome (WS), which is characterized by severe metabolic dysfunction, dyslipidemia, early atherosclerosis, and insulin resistance diabetes, most closely resembles the aging process.[23] The source of WS is the Werner (WRN) DNA helicase gene, which regulates the transcription of the essential NAD+ biosynthetic enzyme Nicotinamide Nucleotide Adenylyltransferase 1.[24][25]

NAD+ depletion through disruption of mitochondrial homeostasis is a substantial contributor to the metabolic dysfunction in WS, according to a 2019 study.[25] WS patient samples and WS animal models’ NAD+-deficient cells showed impaired mitophagy (selective degradation of defective mitochondria).[25] NAD+ repletion restored NAD+ metabolic profiles, improved fat metabolism, lowered mitochondrial oxidative stress, and improved mitochondrial integrity in human cells with mutant WRN via restoring normal mitophagy.[25] In animal models, NAD+ repletion significantly increased lifespan, delayed the beginning of accelerated aging, and increased the number of proliferating stem cells in the germ line.[25] Several NAD+ precursor molecules were released to replace NAD+, demonstrating that NAD+ replacement is what generates the beneficial effects.[25]

More evidence of NAD+’s significance in promoting mitochondrial and metabolic health may be seen in murine cells overexpressing the NADase CD38, which also had greater lactate levels, aberrant mitochondria, including missing or enlarged cristae, and lower oxygen consumption.[7] Isolated mitochondria from these cells showed a substantial reduction in NAD+ and NADH compared to controls. In CD38-deficient animals, NAD+ levels, mitochondrial respiratory rates, and metabolic activities remained constant with age.[7]

At the time of writing, there were no other reported contraindications/precautions for NAD+ injection. Individuals with known allergy to NAD+ injection should not use this product.

At the time of writing, there were no reported interactions for NAD+ injection. It is possible that unknown interactions exist.

Injection of NAD+ seems to be secure and well-tolerated.[10] The injection of NAD+ may cause adverse reactions and side effects, such as headache, shortness of breath, constipation, increased plasma bilirubin, and decreased levels of gamma glutamyl transferase, lactate dehydrogenase, and aspartate aminotransferase.[18][10]

Case studies of the use of NAD+ to treat drug addiction offered early information on side effects and safety.[18][19] According to a 1961 study, patients with addiction who got NAD+ at a moderate IV drip rate (no more than 35 drops per minute) reported “no distress” but those who received it at a quicker drip rate complained of headache and shortness of breath.[18] In this study, the dosage was 500–1000 mg per day for 4 days, then two injections every week for a month, and then one injection every two months as a maintenance dose. One of the two patients who had therapy reported experiencing constipation.[18]

In a 2019 study, a cohort of healthy male participants (n=11; NAD+ n = 8 and Control n = 3) aged 30-55 years had their safety of IV infusion of NAD+ evaluated using liver function tests (serum, total bilirubin, alkaline phosphatase, alanine aminotransferase, gamma glutamyl transferase, lactate dehydrogenase, and aspartate aminotransfer.[10] Neither the NAD+ cohort nor the placebo (saline) cohort experienced any negative side effects throughout the 6 hour infusion.[10] At 8 hours following the start of the NAD+ infusion, it was shown that the NAD+ group had significant declines in the liver function enzymes gamma glutamyl transferase, lactate dehydrogenase, and aspartate aminotransferase as well as a large increase in plasma bilirubin.[10] The modifications, however, were not regarded as clinically important. Because of the limited sample sizes, notably for the control group, which are acknowledged by the authors, these results should be evaluated with care.[10]

The safety of NAD+ injection has not been evaluated in pregnant women. Due to this lack of safety data, pregnant women should avoid NAD+ injection.

The safety of NAD+ injection has not been evaluated in women who are breastfeeding or children. Due to this lack of safety data, women who are breastfeeding and children should avoid NAD+ injection.

Store dry powder at 68°F to 77°F (20°C to 25°C) and away from heat, moisture and light. Once reconstituted keep this medicine in a refrigerator between 36°F to 46°F (2°C to 8°C). Keep all medicine out of the reach of children. Throw away any unused medicine after the beyond-use date. Do not flush unused medications or pour down a sink or drain.

  1. Cantó C, Menzies KJ, Auwerx J. NAD+ Metabolism and the Control of Energy Homeostasis: A Balancing Act between Mitochondria and the Nucleus. Cell Metab. 2015;22(1):31-53. doi:10.1016/j.cmet.2015.05.023
  2. Johnson S, Imai SI. NAD+ biosynthesis, aging, and disease. F1000Research. 2018;7. doi:10.12688/f1000research.12120.1
  3. Belenky P, Bogan KL, Brenner C. NAD+ metabolism in health and disease. Trends Biochem Sci. 2007;32(1):12-19. doi:10.1016/j.tibs.2006.11.006
  4. Guse AH. The Ca2+-Mobilizing Second Messenger Cyclic ADP-Ribose. In: Calcium: The Molecular Basis of Calcium Action in Biology and Medicine. Springer Netherlands; 2000:109-128. doi:10.1007/978-94-010-0688-0_7
  5. Billington RA, Travelli C, Ercolano E, et al. Characterization of NAD uptake in mammalian cells. J Biol Chem. 2008;283(10):6367-6374. doi:10.1074/jbc.M706204200
  6. Massudi H, Grant R, Braidy N, Guest J, Farnsworth B, Guillemin GJ. Age-Associated Changes In Oxidative Stress and NAD+ Metabolism In Human Tissue. Polymenis M, ed. PLoS One. 2012;7(7):e42357. doi:10.1371/journal.pone.0042357
  7. Camacho-Pereira J, Tarragó MG, Chini CCS, et al. CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction through an SIRT3-Dependent Mechanism. Cell Metab. 2016;23(6):1127-1139. doi:10.1016/j.cmet.2016.05.006
  8. Yoshino J, Mills KF, Yoon MJ, Imai SI. Nicotinamide mononucleotide, a key NAD + intermediate, treats the pathophysiology of diet- and age-induced diabetes in mice. Cell Metab. 2011;14(4):528-536. doi:10.1016/j.cmet.2011.08.014
  9. Goldberger J. Public Health Reports, June 26, 1914. The etiology of pellagra. The significance of certain epidemiological observations with respect thereto. Public Health Rep. 1975;90(4):373-375.– LinkOpens in New Tab Accessed October 11, 2020.
  10. Grant R, Berg J, Mestayer R, et al. A Pilot Study Investigating Changes in the Human Plasma and Urine NAD+ Metabolome During a 6 Hour Intravenous Infusion of NAD+. Front Aging Neurosci. 2019;11. doi:10.3389/fnagi.2019.00257
  11. Wu J, Jin Z, Zheng H, Yan LJ. Sources and implications of NADH/NAD+ redox imbalance in diabetes and its complications. Diabetes, Metab Syndr Obes Targets Ther. 2016;9:145-153. doi:10.2147/DMSO.S106087
  12. Pillai JB, Isbatan A, Imai SI, Gupta MP. Poly(ADP-ribose) polymerase-1-dependent cardiac myocyte cell death during heart failure is mediated by NAD+ depletion and reduced Sir2α deacetylase activity. J Biol Chem. 2005;280(52):43121-43130. doi:10.1074/jbc.M506162200
  13. Csiszar A, Tarantini S, Yabluchanskiy A, et al. Role of endothelial NAD+ deficiency in age-related vascular dysfunction. Am J Physiol – Hear Circ Physiol. 2019;316(6):H1253-H1266. doi:10.1152/ajpheart.00039.2019
  14. Ying W, Xiong Z-G. Oxidative Stress and NAD+ in Ischemic Brain Injury: Current Advances and Future Perspectives. Curr Med Chem. 2010;17(20):2152-2158. doi:10.2174/092986710791299911
  15. Zhu X, Su B, Wang X, Smith MA, Perry G. Causes of oxidative stress in Alzheimer disease. Cell Mol Life Sci. 2007;64(17):2202-2210. doi:10.1007/s00018-007-7218-4
  16. Abeti R, Duchen MR. Activation of PARP by oxidative stress induced by β-amyloid: Implications for Alzheimer’s disease. Neurochem Res. 2012;37(11):2589-2596. doi:10.1007/s11064-012-0895-x
  17. Lin JB, Apte RS. NAD + and sirtuins in retinal degenerative diseases: A look at future therapies. Prog Retin Eye Res. 2018;67:118-129. doi:10.1016/j.preteyeres.2018.06.002
  18. O’Hollaren P. Diphosphopyridine nucleotide in the prevention, diagnosis and treatment of drug addiction. West J Surg Obstet Gynecol. May 1961.
  19. Mestayer PN. Addiction: The Dark Night of the Soul/ Nad+: The Light of Hope – Paula Norris Mestayer – Google Books. Balboa Press; 2019.– LinkOpens in New Tab Accessed October 11, 2020.
  20. Braidy N, Villalva MD, van Eeden S. Sobriety and satiety: Is NAD+ the answer? Antioxidants. 2020;9(5). doi:10.3390/antiox9050425
  21. Gerdts J, Brace EJ, Sasaki Y, DiAntonio A, Milbrandt J. SARM1 activation triggers axon degeneration locally via NAD+ destruction. Science (80- ). 2015;348(6233):453-457. doi:10.1126/science.1258366
  22. Essuman K, Summers DW, Sasaki Y, Mao X, DiAntonio A, Milbrandt J. The SARM1 Toll/Interleukin-1 Receptor Domain Possesses Intrinsic NAD+ Cleavage Activity that Promotes Pathological Axonal Degeneration. Neuron. 2017;93(6):1334-1343.e5. doi:10.1016/j.neuron.2017.02.022
  23. Oshima J, Sidorova JM, Jr. Monnat RJ. Werner syndrome: Clinical features, pathogenesis and potential therapeutic interventions. Ageing Res Rev. 2017;33:105-114.
  24. Yu CE, Oshima J, Fu YH, et al. Positional cloning of the Werner’s syndrome gene. Science (80- ). 1996;272(5259):258-262. doi:10.1126/science.272.5259.258
  25. Fang EF, Hou Y, Lautrup S, et al. NAD+ augmentation restores mitophagy and limits accelerated aging in Werner syndrome. Nat Commun. 2019;10(1):1-18. doi:10.1038/s41467-019-13172-