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FOR IMMEDIATE RELEASE
Viral Mutations and the Risk of 'Second-hand Malnutrition'
by Michael Passwater
OMNS (Sept. 13, 2021) The New York Times recently quoted Michael Osterholm, an expert epidemiologist at the University of Minnesota, acknowledging, "We still are really in the cave ages in terms of understanding how viruses emerge, how they spread, how they start and stop, why they do what they do."  While it is true of many topics that new studies often lead to more questions than answers, this topic has special importance to the human experience. We must accelerate our understanding of the complex interactions between humans and viruses to survive and to improve our experience on Earth.
Fortunately, over the past three decades, brilliant pioneers including Ethan Will Taylor, Melinda Beck, and Caroline Broome have been diligently pointing the way out of the cave. The biochemistry is complicated, the genetics is even more complex, and the terminology is unfamiliar. But the message is too important to hide in a library. It demands attempts to understand and communicate their findings. It may require a shift in thinking, and a shift in actions.
Readers of the Orthomolecular Medicine News Service appreciate the importance of good nutrition to keep our bodies healthy. Let's shift our attention for a moment to explore the impact of nutrition on an invading virus. [2,3] RNA viruses are responsible for many of the most devastating infectious diseases of our time - Ebola, Dengue, Influenza, Hepatitis C, Polio, Zika, SARS, MERS, and SARS-CoV-2, among others. However, in addition to being so incomplete that they are fully dependent on invading host cells to replicate themselves, RNA viruses are also primitive in ways that make them unstable. Their replication process is rapid, error-prone, and devoid of the nucleic acid and protein folding proof-reading enzymes used by advanced organisms to minimize mutations and mis-translations during nucleic acid replication and protein production. As a result of this instability, truly pure strains of a virus are rarely found in nature. Viruses tend to exist as mixtures of closely related variants, sometimes referred to as a "quasi-species".
Melinda Beck and colleagues performed experiments with coxsackie and influenza viruses exploring the impact of host nutrition on these viruses. [4-11] They injected a virus (quasi-species) considered to be avirulent (not producing illness) into nourished mice (specifically, selenium and vitamin E sufficient mice), and injected the same virus into selenium and vitamin E deficient mice. The nourished mice did not become ill, and consensus viral genomes from these mice reflected the initial avirulent virus injected. Accordingly, injecting the virus harvested from the first round of nourished mice into additional nourished mice continued to not produce illness. However, the malnourished mice injected with the initial virus died, and virus isolated from these mice were found to have mutations increasing their pathogenicity. This mutated virus was then injected into nourished mice, and they died too. [6,7]
Caroline Broome and colleagues explored this concept in humans using oral live attenuated poliomyelitis vaccines.  The test groups were given 0, 50 or 100 micrograms (mcg) of selenium as sodium selenite daily for 6 weeks before being exposed to the attenuated virus, and for 9 weeks following exposure. The people receiving 100 mcg of selenium per day cleared the virus sooner, and virus isolated from this group contained fewer mutations.
The researchers suggested three factors as possible explanations of their findings:
Selenoproteins are important for immune function, including interferon production, phagocytosis (white blood cell destruction of invading virus or other pathogen), and the creation and maintenance of immune memory cells. Without adequate selenoproteins, immune responses to infections and vaccinations are suboptimal and resulting cellular and humoral immunity, if achieved, lasts for a shorter duration. [11,14] Ethan Will Taylor and colleagues have shown that RNA viruses destroy host selenoproteins and other components of DNA synthesis to favor self-replication of the RNA virus. [15-18] Like pirates taking a seaside village's treasures and using it for their own purposes, an RNA virus can disrupt the host cell's defenses and use the host nutrients, nucleic acids, and assembly mechanisms to mass produce itself. In 2009, Dr. Taylor detailed the cellular metabolism disruption that results from HIV and other RNA viruses leading to NAD+ depletion, ATP depletion, and necrosis.  In some cases, immunosuppression also results due to depletion of the tryptophan pathway.
Glutathione peroxidases and thioredoxin reductases are selenoproteins essential as direct antioxidants, and to recycle other antioxidants such as ascorbic acid (vitamin C) and tocopherols (vitamin E).  Ascorbic acid, in turn, also helps to minimize nucleic acid mutations, and to maintain redox balance among its many roles throughout the body. Reactive oxygen species (O2-) and reactive nitrogen species (NO, ONOO-) play a large role in causing RNA virus mutations, and also damaging host cells and nucleic acids. [12,13] Pre-infection insufficiency or disruption (acquired deficiency induced by the virus) of the host antioxidant network increases the severity of the current illness, and leads to RNA virus mutations which increases the risk of severe illness to other hosts in the future. [20-28]
Maybe more is known about the emergence of pathogenic viruses than we realize? It turns out the same good nutrition that keeps people strong, also keeps viral genomes more stable and less pathogenic. [29-35] Similar to the unpleasant reality that a non-smoker frequently in proximity to a smoker may become ill from second-hand smoke, a well-nourished person may be vulnerable to illness from exposure to mutated viruses arising from viral replication in malnourished hosts.
Addressing micronutrient as well as macronutrient insufficiencies and imbalances throughout our communities and food chains is critical to public health.
Recommended adult doses to reduce risk of serious viral infections [28-34]:
References and further reading:
1. Leonhardt D, Wu A (2021) "Has Delta Peaked?" The New York Times, The Morning. September 1, 2021. https://www.nytimes.com/2021/09/01/briefing/delta-peak-covid-caseload.html
2. Beck MA, Handy J, Levander OA (2004) Host nutritional status: the neglected virulence factor. Trends Microbiol 12:417-423. https://pubmed.ncbi.nlm.nih.gov/15337163
3. Guillin OM, Vindry C, Ohlmann T, Chavatte L (2019) Selenium, Selenoproteins and Viral Infection. Nutrients 11:2101. https://pubmed.ncbi.nlm.nih.gov/31487871
4. Beck MA (1999) Trace Minerals, Immune Function, and Viral Evolution. Chapter 16 in: Military Strategies for Sustainment of Nutrition and Immune Function in the Field. Institute of Medicine (US), Committee on Military Nutrition Research. US National Academies Press. ISBN-13: 978-0309063456 https://www.ncbi.nlm.nih.gov/books/NBK230971
5. Beck MA. Kolbeck PC, Rohr LH, et al. (1994a) Benign human enterovirus becomes virulent in selenium-deficient mice. J. Med. Virol. 43:166-170. https://pubmed.ncbi.nlm.nih.gov/8083665
6. Beck MA, Kolbeck PC, Rohr LH, et al. (1994b) Vitamin E deficiency intensifies the myocardial injury of coxsackievirus B3 infection of mice. J. Nutr. 124:345-358. https://pubmed.ncbi.nlm.nih.gov/8120653
7. Beck MA, Shi Q, Morris VC, Levander OA. (1995) Rapid genomic evolution of a non-virulent coxsackievirus B3 in selenium-deficient mice results in selection of identical virulent isolates. Nat. Med. 1:433-436. https://pubmed.ncbi.nlm.nih.gov/7585090
8. Nelson HK, Shi Q, Van Dael P. et al. (2001) Host nutritional selenium status as a driving force for influenza virus mutations. FASEB J. 15:1721-1738. https://pubmed.ncbi.nlm.nih.gov/11481250
9. Beck MA, Nelson HK, Shi Q, et al. (2001) Selenium deficiency increases the pathology of an influenza virus infection. FASEB J. 15:1481-1483. https://pubmed.ncbi.nlm.nih.gov/11387264
10. Beck MA, Levander OA. (1998) Dietary oxidative stress and the potentiation of viral infection. Annu. Rev. Nutr. 18:93-116. https://pubmed.ncbi.nlm.nih.gov/9706220
11. Broome CS, McArdle F, Kyle JAM, et al. (2004) An increase in selenium intake improves immune function and poliovirus handling in adults with marginal selenium status. Am. J. Clin. Nutr. 80:154-162. https://pubmed.ncbi.nlm.nih.gov/15213043
12. Akaike T, Fujii S, Kato A, et al. (2000) Viral mutation accelerated by nitric oxide production during infection in vivo. FASEB J. 14:1447-1454. https://pubmed.ncbi.nlm.nih.gov/10877838
13. Akaike TY, Noguchi, S Ijiri, et al. (1996) Pathogenesis of influenza virus-induced pneumonia: involvement of both nitric oxide and oxygen radicals. Proc. Natl. Acad. Sci. USA. 93:2448-2453. https://pubmed.ncbi.nlm.nih.gov/8637894
14. Keshan Disease Research Group. (1979) Observations on effect of sodium selenite in prevention of Keshan Disease. Chin. Med. J. 92:471-476. https://pubmed.ncbi.nlm.nih.gov/114371 http://rs.yiigle.com/CN11215419799207/1069168.htm
15. Taylor, E.W. (2009) The oxidative stress-induced niacin sink (OSINS) model for HIV pathogenesis. Toxicology 278:124-130. https://pubmed.ncbi.nlm.nih.gov/19857540
16. Wang Y, Huang J, Sun Y, et al. (2021) SARS-CoV-2 suppresses mRNA expression of selenoproteins associated with ferroptosis, endoplasmic reticulum stress and DNA synthesis. Food and Chemical Toxicology 153:112286. https://pubmed.ncbi.nlm.nih.gov/34023458
17. Taylor EW, Ruzicka JA, Premadasa L, Zhao L (2016) Cellular Selenoprotein mRNA Tethering via Antisense Interactions with Ebola and HIV-1 mRNAs May Impact Host Selenium Biochemistry. Cur Top Med Chem. 16:1530-1535. https://pubmed.ncbi.nlm.nih.gov/26369818
18. Taylor EW, Radding W. (2020) Understanding Selenium and Glutathione as Antiviral Factors in COVID-19: Does the Viral Mpro Protease Target Host Selenoproteins and Glutathione Synthesis? Front Nutr. 7:143. eCollection 2020. https://pubmed.ncbi.nlm.nih.gov/32984400
19. Beck MA, Esworthy RS, Ho YS, Chu FF (1998) Glutathione peroxidase protects mice from viral-induced myocarditis. FASEB J. 12:1143-1149. https://pubmed.ncbi.nlm.nih.gov/9737717 https://www.researchgate.net/publication/13547567_Glutathione_peroxidase_protects_mice_from_viral-induced_myocarditis
20. Van der Vliet A, Cross CE. (2000) Oxidants, nitrosants, and the lung. Am. J. Med. 109:398-421. https://pubmed.ncbi.nlm.nih.gov/11020397
21. Maeda H, Akaike T. (1991) Oxygen free radicals as pathogenic molecules in viral diseases. Proc. Soc. Exp. Biol. Med. 198:721-727. https://pubmed.ncbi.nlm.nih.gov/1656471
22. Beck MA, Handy J, Levander OA. (2000) The role of oxidative stress in viral infections. Ann. N.Y. Acad. Sci. 917:906-912. https://pubmed.ncbi.nlm.nih.gov/11268420
23. Grimble RF. (2001) Nutritional modulation of immune function. Proc. Nutr. Soc. 60:389-397. https://pubmed.ncbi.nlm.nih.gov/11681814
25. Field CJ, Johnson IR, Schley PD. (2002) Nutrients and their role in host resistance to infection. J. Leukoc. Biol. 71:16-32. https://pubmed.ncbi.nlm.nih.gov/11781377
26. von Essen MR, Kongsbak M, Schjerling P, et al. (2010) Vitamin D controls T cell antigen receptor signaling and activation of human T cells. Nat Immunol. 11:344-349. https://pubmed.ncbi.nlm.nih.gov/20208539
27. Arthur JR, McKenzie RC, Beckett GJ. (2003) Selenium in the immune system. J. Nutr. 133:1457S-1459S. https://pubmed.ncbi.nlm.nih.gov/12730442
28. Nencioni L, Iuvara A, Aquilano K, et al. (2003) Influenza A virus replication is dependent on an antioxidant pathway that involves GSH and Bcl-2. FASEB J. 17:758-760. https://pubmed.ncbi.nlm.nih.gov/12594179 https://faseb.onlinelibrary.wiley.com/doi/epdf/10.1096/fj.02-0508fje
29. Doctor Y, Saul AW, Smith RG (2021) Nutrition to Prevent and Treat COVID-19. Orthomolecular Medicine News Service. http://www.orthomolecular.org/resources/omns/v17n03.shtml (Suggest adding niacin/niacinamide, K2 along with D3, and increased selenium to 200 ug/day to the supplement recommendations listed)
30. Passwater M (2020) Do the Math: MATH+ Saves Lives. Orthomolecular Medicine News Service. http://www.orthomolecular.org/resources/omns/v16n55.shtml
31. Passwater M (2021) The VICTAS Trial: Designed to Fail.Orthomolecular Medicine News Service. http://www.orthomolecular.org/resources/omns/v17n08.shtml
32. Riordan Clinic (2021) High dose vitamin C (IVC) https://riordanclinic.org/what-we-do/high-dose-iv-vitamin-c
33. Holford P (2020) Vitamin C for the Prevention and Treatment of Coronavirus. Orthomolecular Medicine News Service. http://orthomolecular.org/resources/omns/v16n36.shtml
34. Gonzalez MJ (2020) Personalize Your COVID-19 Prevention: An Orthomolecular Protocol. Orthomolecular Medicine News Service. http://orthomolecular.org/resources/omns/v16n31.shtml
35. Rasmussen MPF (2020) Vitamin C Evidence for Treating Complications of COVID-19 and other Viral Infections. Orthomolecular Medicine News Service. http://orthomolecular.org/resources/omns/v16n25.shtml
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