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Antioxidant/anti-inflammatory effect of Mg(2+) in coronavirus disease 2019 (COVID-19) #MMPMID35357063
Rev Med Virol 2022[Sep]; 32 (5): e2348 PMID35357063show ga
Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19), characterised by high levels of inflammation and oxidative stress (OS). Oxidative stress induces oxidative damage to lipids, proteins, and DNA, causing tissue damage. Both inflammation and OS contribute to multi-organ failure in severe cases. Magnesium (Mg(2+) ) regulates many processes, including antioxidant and anti-inflammatory responses, as well as the proper functioning of other micronutrients such as vitamin D. In addition, Mg(2+) participates as a second signalling messenger in the activation of T cells. Therefore, Mg(2+) deficiency can cause immunodeficiency, exaggerated acute inflammatory response, decreased antioxidant response, and OS. Supplementation with Mg(2+) has an anti-inflammatory response by reducing the levels of nuclear factor kappa B (NF-kappaB), interleukin (IL) -6, and tumor necrosis factor alpha. Furthermore, Mg(2+) supplementation improves mitochondrial function and increases the antioxidant glutathione (GSH) content, reducing OS. Therefore, Mg(2+) supplementation is a potential way to reduce inflammation and OS, strengthening the immune system to manage COVID-19. This narrative review will address Mg(2+) deficiency associated with a worse disease prognosis, Mg(2+) supplementation as a potent antioxidant and anti-inflammatory therapy during and after COVID-19 disease, and suggest that randomised controlled trials are indicated.