Vitamin D is a major steroid hormone that is gaining attention as a therapeutic molecule.
Due to the general awareness of its importance for the overall well-being, vitamin D …

Objective The aim of this study was to determine the changes in serum vitamin D distribution
at an institute in India over the past 6 y and compare it with global trends. Methods We …

Objectives Since the onset of the COVID-19 pandemic in 2020, there have been plausible
suggestions about the need to augment vitamin D intake by supplementation in order to …

Objective To assess the vitamin D status of men and women undergoing in vitro fertilization
(IVF)/intracytoplasmic sperm injection (ICSI), and to investigate associations between …

Background The ratio of 24, 25‐dihydroxyvitamin D3/25‐hydroxyvitamin D3 (vitamin D
metabolite ratio [VDMR]) may reflect functional vitamin D activity. We examined associations …

Vitamin D deficiency is widespread globally, however available data for the Russian adult
population is fragmented. This cross-sectional study used secondary data for individuals …

Introduction Laboratories have noted marked increases in the analysis of 25-hydroxy vitamin
D (25 (OH) D) in recent decades. Our objectives were to describe the annual number of 25 …

Background High circulating levels of vitamin D (25 (OH) D) are suggested to reduce the risk
of urinary bladder cancer (BC), but the evidence is weak, and several studies lack sufficient …

Objectives To investigate whether sex, age, medical specialty and seasonal variations in
serum concentration of 25-hydroxy vitamin D (25 (OH) D) are evident among an Australian …

Background Vitamin D status and season are intrinsically linked, and both have been
proposed to be associated with glucose homeostasis in pregnancy, with conflicting results …