Asthma is a clinical syndrome that affects all age groups. Asthma prevalence worldwide has
seen a rapid increase in the latter part of the last century. Recent data has shown that …

Viral infections are closely linked to wheezing illnesses in children of all ages. Respiratory
syncytial virus (RSV) is the main causative agent of bronchiolitis, whereas rhinovirus (RV) is …

Over the past 100 years, many major breakthroughs and discoveries have occurred in
relation to vitamin D research. These developments include the cure of rickets in 1919, the …

Vitamin D (VitD) is a prohormone most noted for the regulation of calcium and phosphate
levels in circulation, and thus of bone metabolism. Inflammatory and immune cells not only …

Background A previous aggregate data meta-analysis of randomised controlled trials
showed that vitamin D supplementation reduces the rate of asthma exacerbations requiring …

Background: Vitamin D deficiency has been shown to be independently associated with
increased risk of viral acute respiratory infection (ARI) in a number of observational studies …

Background: Randomised controlled trials (RCTs) exploring the potential of vitamin D to
prevent acute respiratory infections have yielded mixed results. Individual participant data …

Vitamin D, in addition to its classical functions in bone homeostasis, has a modulatory and
regulatory role in multiple processes, including host defense, inflammation, immunity, and …

Background Several clinical trials of vitamin D to prevent asthma exacerbation and improve
asthma control have been conducted in children and adults, but a meta‐analysis restricted …

Asthma is a chronic respiratory disorder which is associated with airway inflammation.
Environmental factors, in association with genetic susceptibility, play a critical role in asthma …