Since the onset of the coronavirus disease 2019 (COVID-19) pandemic, multiple severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants with increasing ability to …

Purpose Vitamin D deficiency/insufficiency may increase the susceptibility to coronavirus
disease 2019 (COVID-19). We aimed to determine the association between vitamin D …

The molecular mechanisms governing orderly shutdown and retraction of CD4+ type 1
helper T (TH1) cell responses remain poorly understood. Here we show that complement …

Purpose To provide a precise summary and collate the hitherto available clinical evidence
on the effect of vitamin D supplementation on clinical outcomes in COVID-19 patients …

Context Long COVID is an emerging syndrome affecting 50% to 70% of COVID-19 survivors
that still lacks predicting factors. Objective Due to the extraskeletal effects of vitamin D, we …

Vitamin D deficiency has long been associated with reduced immune function that can lead
to viral infection. Several studies have shown that Vitamin D deficiency is associated with …

Purpose In less than one and a half year, the COVID-19 pandemic has nearly brought to a
collapse our health care and economic systems. The scientific research community has …

In this review we summarize the impact of bolus versus daily dosing of vitamin D on 25 (OH)
D and 1, 25 (OH) 2D levels, as well as on key countervailing factors that block vitamin D …

Purpose Low vitamin D in COVID-19 have been related to worse outcomes. However, most
of the studies conducted so far were not-controlled and retrospective, including biases …

Aims The aim of this systematic review and meta‐analysis was to investigate the effect of
vitamin D supplementation on mortality and admission to intensive care unit (ICU) of COVID …