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Ezku | 3 years ago

Perhaps not many in this audience are dealing with having to mitigate the prospect of dementia. How about something close to the horizon for almost all of us?

> Vitamin D deficiency can cause over‐activation of the pulmonary renin‐angiotensin system (RAS) leading to the respiratory syndrome. RAS is regulated in part at least by angiotensin‐converting enzyme 2 (ACE2), which also acts as a primary receptor for SARS‐CoV‐2 entry into the cells. Hence, vitamin D deficiency can exacerbate COVID‐19, via its effects on ACE2.

— Vitamin D and COVID-19: Role of ACE2, age, gender, and ethnicity. J Med Virol. 2021 https://pubmed.ncbi.nlm.nih.gov/33990955/

> Angiotensin-converting enzyme 2 (ACE2), a part of the renin-angiotensin system (RAS), serves as the major entry point into cells for SARS-CoV-2 which attaches to human ACE2, thereby reducing the expression of ACE2 and causing lung injury and pneumonia. Vitamin D, a fat-soluble-vitamin, is a negative endocrine RAS modulator and inhibits renin expression and generation… Therefore, targeting the unbalanced RAS and ACE2 down-regulation with vitamin D in SARS-CoV-2 infection is a potential therapeutic approach to combat COVID-19.

— A brief review of interplay between vitamin D and angiotensin-converting enzyme 2: Implications for a potential treatment for COVID-19. Rev Med Virol. 2020 https://pubmed.ncbi.nlm.nih.gov/32584474/

Here’s a caveat to remember when taking vitamin D:

> Majority of the adults are deficient in both vitamin D and magnesium but continue to go unrecognized … Mg is essential in the metabolism of vitamin D, and taking large doses of vitamin D can induce severe depletion of Mg. Adequate magnesium supplementation should be considered as an important aspect of vitamin D therapy.

— Magnesium Supplementation in Vitamin D Deficiency. Am J Ther. 2019 https://pubmed.ncbi.nlm.nih.gov/28471760/

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