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  • Study links low...

Study links low Vitamin D levels to high Covid 19 deaths

Written By : Dr. Kamal Kant Kohli Published On 2020-05-08T12:30:39+05:30  |  Updated On 8 May 2020 3:01 PM IST
Study links low Vitamin D levels to high Covid 19 deaths
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PResearchers in a new study published in journal Aging Clinical and Experimental Research have found an association between low average levels of vitamin D and high numbers of COVID-19 cases and mortality rates across 20 European countries.

Vitamin D has roles in the body, including modulation of cell growth, neuromuscular and immune function, and reduction of inflammation.

Previous observational studies have reported an association between low levels of vitamin D and susceptibility to acute respiratory tract infections. However role of Vitamin D in Covid 19 infection is unknown.

Researchers in a study conducted in 20 European countries have found significant crude relationships between vitamin D levels and the number COVID-19 cases and especially the mortality caused by this infection.

The research has been published in the journal Aging Clinical and Experimental Research.

The researchers hypothesize that vitamin D may play a protective role for COVID-19.The primary aims of this study are to assess if there is any association between the mean levels of vitamin D in various countries and the mortality caused by COVID-19.

Vitamin D modulates the response of white blood cells, preventing them from releasing too many inflammatory cytokines. The COVID-19 virus is known to cause an excess of pro-inflammatory cytokines.

Italy and Spain have both experienced high COVID-19 mortality rates, and the new study shows that both countries have lower average vitamin D levels than most northern European countries. This is partly because people in southern Europe, particularly the elderly, avoid strong sun, while skin pigmentation also reduces natural vitamin D synthesis.

The highest average levels of vitamin D are found in northern Europe, due to the consumption of cod liver oil and vitamin D supplements, and possibly less sun avoidance. Scandinavian nations are among the countries with the lowest number of COVID-19 cases and mortality rates per head of population in Europe.

Dr Lee Smith, Reader in Physical Activity and Public Health at Anglia Ruskin University, said: "We found a significant crude relationship between average vitamin D levels and the number COVID-19 cases, and particularly COVID-19 mortality rates, per head of population across the 20 European countries.

"Vitamin D has been shown to protect against acute respiratory infections, and older adults, the group most deficient in vitamin D, are also the ones most seriously affected by COVID-19.

"A previous study found that 75% of people in institutions, such as hospitals and care homes, were severely deficient in vitamin D. We suggest it would be advisable to perform dedicated studies looking at vitamin D levels in COVID-19 patients with different degrees of disease severity."

Mr Petre Cristian Ilie, lead urologist of Queen Elizabeth Hospital King's Lynn NHS Foundation Trust, said: "Our study does have limitations however, not least because the number of cases in each country is affected by the number of tests performed, as well as the different measures taken by each country to prevent the spread of infection. Finally, and importantly, one must remember correlation does not necessarily mean causation."

For further reference log on to:

Petre Cristian Ilie, Simina Stefanescu, Lee Smith. The role of vitamin D in the prevention of coronavirus disease 2019 infection and mortality. Aging Clinical and Experimental Research, 2020; DOI: 10.1007/s40520-020-01570-8

Vitamin DCholecalciferolAging Clinical and Experimental ResearchCovid 19coronavirus
Source : Anglia Ruskin University
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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