Background & aims A role of vitamin D in the development of respiratory and allergic
disease in children remains unclear. It may be likely that vitamin D has an effect on airway …

Background Despite obtaining evidences on association between vitamin D and
development of lung in fetus, little is known about vitamin D level and its impact on severity …

Recurrent wheezing (RW) in infancy is one of the most frequent reasons for parents to
consult health care providers and creates a significant global burden. Clinical course of RW …

Background: Asthma is one of the most prevalent chronic diseases worldwide, affecting
more than 200 million people. Vitamin D deficiency has been reported among individuals …

In recent years, low vitamin D status has been proposed as a putative risk factor for allergic
diseases. A growing body of literature reports low vitamin D levels in atopic patients and …

ABSTRACT Background: Decreased 25-hydroxyvitamin D [25 (OH) D] concentrations have
been associated with an increased prevalence and severity of asthma and a lower response …

Asthma, one of the most prevalent diseases affecting people worldwide, is a chronic
respiratory disease characterized by heightened airway inflammation, airway …

BACKGROUND: The effects of serum vitamin D status on atopy, steroid requirement, and
functional responsiveness to corticosteroids in children versus adults with asthma have not …

Background Vitamin D insufficiency (a serum 25-hydroxy vitamin D level of< 30 ng/mL) has
been associated with asthma morbidity. Objective To examine vitamin D insufficiency …

Rationale: Little is known about vitamin D status and its effect on asthma pathophysiology in
children with severe, therapy-resistant asthma (STRA). Objectives: Relationships between …