What’s new for the clinician– summaries of recently published papers





meta-analysis, synthesis


The lack of a cure for COVID-19 infection has spawned a host of treatment and preventative approaches directed at either the virus, strengthening of the immune system or management of the signs and symptoms associated with the disease. Vitamin D is thought to play an effective role in immune system functioning, which can help in a satisfactory cellular response and in protecting against the severity of infections caused by microorganisms1. Vitamin D deficiency (25(OH)D below 50nmol/l) has also been associated with
severe COVID-19 raising discussions about the benefits of supplementation of this vitamin when treating the illness caused by SARS-CoV-2. In Europe, an association has been identified between vitamin D deficiency in the population and higher COVID-19 mortality rates implying that that countries closer to the equator present lower COVID-19 mortality rates than those further from the equator1


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Pereira M, Dantas Damascena A, Galvão Azevedo LM, de Almeida Oliveira T, da Mota Santana J. Vitamin D deficiency aggravates COVID-19: systematic review and meta-analysis. Critical reviews in food science and nutrition. 2022 Mar 9;62(5):1308-16.

Jafari S, Hezaveh E, Jalilpiran Y, Jayedi A, Wong A, Safaiyan A, Barzegar A. Plant-based diets and risk of disease mortality: a systematic review and metaanalysis of cohort studies. Critical Reviews in Food Science and Nutrition. 2021 Apr 21:1-3.




How to Cite

Yengopal, V. (2022). What’s new for the clinician– summaries of recently published papers. South African Dental Journal, 77(06), 365–368. https://doi.org/10.17159/2519-0105/2022/v77no6a7

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