The Science Behind NMN – A Stable, Reliable NAD+ Activator and Anti-Aging Molecule


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Looking Forward: NMN and Human Health

NMN is clearly a murine fountain of youth. But what about humans? Shin-ichiro Imai has said that NMN may improve adult human metabolism, rendering it more like that of someone ten or twenty years younger.34 His team is now studying NMN in humans. David Sinclair, Harvard University’s noted anti-aging researcher, whose research on resveratrol, NAD+, and sirtuins is world renowned, is also conducting human trials. He is taking NMN himself; he has said his lipid profile has improved dramatically and he feels more energetic and that his blood markers, at nearly 60 years old, are closer to those of a 31-year-old.35,36

An interesting question is the delivery system for oral NMN: the EVs that transport the molecule through plasma in the body are liposomes. A liposomal version of NMN may well mimic the body’s own transport system, enhancing uptake and delivery, as science advances its understanding of the holy grail of reversing aging.


References

1. Zhavoronkov A et al. Classifying aging as a disease in the context of ICD-11. Front Genet. 2015 Nov 4;6:326

2. Blagosklonny MV. Disease or not, aging is easily treatable. Aging (Albany NY). 2018 Nov 17;10(11):3067-3078

3. Editorial. Opening the door to treating ageing as a disease. Lancet Diabetes Endocrinol. 2018 Aug;6(8):587

4. López-Otín C et al. The hallmarks of aging. Cell. 2013;153(6):1194-1217

5. Schultz MB et al. Why NAD+ Declines during Aging: It’s Destroyed. Cell Metab. 2016 June 14; 23(6): 965–966

6. Imai S. The NAD World 2.0: the importance of the inter-tissue communication mediated by NAMPT/NAD+/SIRT1 in mammalian aging and longevity control. NPJ Syst Biol Appl. 2016 Aug 18;2:16018

7. Conboy IM, et al. Rejuvenation of aged progenitor cells by exposure to a young systemic environment. Nature. 2005; 433: 760–764.

8. de Magalha˜ es JP et al. Meta-analysis of age-related gene expression profiles identifies common signatures of aging. Bioinformatics. 2009: 25: 875–881.

9. Zhu XH et al. In vivo NAD assay revels the intracellular NAD contents and redox state in healthy human brain and their age dependences. Proc. Natl. Acad. Sci. 2015; 112:2876–2881

10. Suave AA. NAD+ and vitamin B3: from metabolism to therapies. J Pharmacol Exp Ther. 2008 Mar;324(3):883-93

11. Lee CF et al. Targeting NAD+ Metabolism as Interventions for Mitochondrial Disease. Sci Rep. 2019 Feb 28;9(1):3073

12. Camacho-Pereira J et al. CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction through an SIRT3-Dependent Mechanism. Cell Metab. 2016 Jun 14;23(6):1127-1139

13. Longo VD et al. Interventions to Slow Aging in Humans: Are We Ready? Aging Cell. 14 (4): 497-510.

14. Poljsak B. NAMPT-Mediated NAD biosynthesis as the internal timing mechanism: in NAD+ World, time Is running in its own way. Rejuvenation Res. 2018 Jun;21(3):210-224

15. Johnson S et al. NAD + biosynthesis, aging, and disease. F1000Res. 2018 Feb 1;7:132

16. Yoshino J et al. NAD+ Intermediates: The Biology and Therapeutic Potential of NMN and NR. Cell Metab. 2018 Mar 6;27(3):513-528

17. Revollo JR et al. The NAD biosynthesis pathway mediated by nicotinamide phosphoribosyltransferase regulates Sir2 activity in mammalian cells. J Biol Chem. 2004; 279:50754–50763

18. Mills KF et al. Long-Term Administration of Nicotinamide Mononucleotide Mitigates Age-Associated Physiological Decline in Mice. Cell Metab. 2016; 24:795–806

19. Hallschmid M et al. Relationship between cerebrospinal fluid visfatin (PBEF/Nampt) levels and adiposity in humans. Diabetes. 2009; 58:637–640

20. Friebe D et al. Leucocytes are a major source of circulating nicotinamide phosphoribosyltransferase (NAMPT)/pre-B cell colony (PBEF)/visfatin linking obesity and inflammation in humans. Diabetologia. 2011; 54:1200–1211

21. Yoshino J et al. NAD+ Intermediates: The biology and therapeutic potential of NMN and NR. Cell Metab. 2018 Mar 6;27(3):513-528

22. Van der Meel R et al. Extracellular vesicles as drug delivery systems: lessons from the liposome field. J Control Release. 2014 Dec 10;195:72-85

23. Yoshida M. Extracellular vesicle-contained eNAMPT delays aging and extends lifespan in mice. Cell Metab. 2019 Aug 6;30(2):329-342.e5

24. Wu LE et al. The elusive NMN transporter is found. Nat Metabo. 2019;1(1):8-9

25. Grozio A et al. Slc12a8 is a nicotinamide mononucleotide transporter. Nat Metab. 2019;1(1):47–57.

26. Imai, S. Diagnostic and therapeutic applications of a novel plasma metabolite, Nicotinamide Mononucleotide (NMN), for age-associated metabolic complications in humans. Longer Life Foundation. 2011. Available at: http://www.longerlife.org/mm/files/LLF%20Final%20Report_IMAI.pdf Accessed 9-1-2019

27. Keisuke Okabe et al. Implications of altered NAD metabolism in metabolic disorders. Journal of Biomedical Science. 2019;26:34

28. Mills KF et al. Long-term administration of nicotinamide mononucleotide mitigates age-associated physiological decline in mice. Cell Metab. 2016 Dec 13;24(6):795-806

29. Caton PW et al. Nicotinamide mononucleotide protects against pro-inflammatory cytokine-mediated impairment of mouse islet function. Diabetologia. 2011 Dec;54(12):3083-92

30. Yamamoto T. Nicotinamide mononucleotide, an intermediate of NAD+ synthesis, protects the heart from ischemia and reperfusion. PLoS One. 2014 Jun 6;9(6):e98972.

31. Mendelsohn AR et al. Partial reversal of skeletal muscle aging by restoration of normal NAD⁺ levels. Rejuvenation Res. 2014 Feb;17(1):62-9.

32. Wang X et al. Nicotinamide mononucleotide protects against β-amyloid oligomer-induced cognitive impairment and neuronal death. Brain Res. 2016 Jul 15;1643:1-9

33. Wei CC et al. NAD replenishment with nicotinamide mononucleotide protects blood-brain barrier integrity and attenuates delayed tissue plasminogen activator-induced haemorrhagic transformation after cerebral ischaemia. Br J Pharmacol. 2017 Nov;174(21):3823-3836

34. Anti-Aging compound in human clinical trial: will boosting NMN slow aging? Available at: https://hecmedia.org/posts/anti-aging-compound-in-human-clinical-trial-will-boosting-nmn-slow-aging-6/ Accessed 9-1-2019

35. Bolotnikova MN. Anti-aging approaches. Harvard Magazine. Sept-Oct 2017. Available at: https://harvardmagazine.com/2017/09/anti-aging-breakthrough Accessed 9-1-2019

36. Taylor M. Scientists may be closer than you think to an anti-aging pill. But beware of the hype. Kaiser Health News. Available at https://www.tampabay.com/health/medical-news/scientists-may-be-closer-than-you-think-to-an-anti-aging-pill-but-beware-of-the-hype-20190212/ Accessed 9-1-2019