The etiology of endemic rickets was discovered a century ago. Vitamin D is the precursor of
25-hydroxyvitamin D and other metabolites, including 1, 25 (OH) 2D, the ligand for the …

Vitamin D deficiency (serum 25-hydroxyvitamin D (25 (OH) D)< 50 nmol/L or 20 ng/mL) is
common in Europe and the Middle East. It occurs in< 20% of the population in Northern …

Research carried out during the past two-decades extended the understanding of actions of
vitamin D, from regulating calcium and phosphate absorption and bone metabolism to many …

Abstract The Third International Conference on Controversies in Vitamin D was held in
Gubbio, Italy, September 10–13, 2019. The conference was held as a follow up to previous …

Background Vitamin D deficiency may be a risk factor for mortality but previous meta-
analyses lacked standardization of laboratory methods for 25-hydroxyvitamin D (25 [OH] D) …

Vitamin D is a precursor of the steroid hormone calcitriol that is crucial for bone and mineral
metabolism. Both the high prevalence of vitamin D deficiency in the general population and …

Although observational studies of health outcomes generally suggest beneficial effects with,
or following, higher serum 25-hydroxyvitamin D [25 (OH) D] concentrations, randomized …

Objectives Nutritional vitamin D supplements are often used in general pediatrics. Here, the
aim is to address vitamin D supplementation and calcium nutritional intakes in newborns …

Vitamin D is a hormone with both genomic and non-genomic actions. It exerts its activity by
binding vitamin D receptor (VDR), which belongs to the superfamily of nuclear receptors and …

Background Interpretation of parathyroid hormone (iPTH) requires knowledge of vitamin D
status that is influenced by season. Objective Characterize the temporal relationship …