Related Experiment Video
Updated: Apr 12, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
The potential role of vitamin D in the link between obesity and asthma severity/control in children
Phuong Vo1, Megan Bair-Merritt, Carlos A Camargo
1Division of Pediatric Pulmonary and Allergy, Boston Medical Center, Boston, MA 02118, USA.
Insights
Childhood obesity worsens asthma control and severity. Acute respiratory infections and poor corticosteroid response may mediate this link, with vitamin D potentially playing a role.
Area of Science:
- Pediatric Pulmonology
- Public Health
- Endocrinology
Background:
- Childhood obesity and asthma are significant global health concerns.
- Obesity is linked to higher asthma risk and increased severity.
- Mechanisms include acute respiratory infections (ARI) and reduced corticosteroid effectiveness.
Purpose of the Study:
- To review the relationship between childhood obesity and asthma.
- To explore the mediating roles of ARI and corticosteroid responsiveness.
- To discuss the potential influence of vitamin D in this pathway.
Main Methods:
- Literature review summarizing current evidence.
- Analysis of proposed mechanisms linking obesity and asthma.
- Discussion of vitamin D's role and supplementation trials.
Main Results:
- Obesity is associated with worse asthma control and severity in children.
- Increased ARI frequency and decreased corticosteroid responsiveness are potential mediators.
- Low vitamin D status in obesity may impact ARI risk and treatment response.
Conclusions:
- Obesity exacerbates childhood asthma through pathways involving infections and inflammation.
- Vitamin D may modulate these pathways, offering a potential therapeutic target.
- Further research is needed to confirm vitamin D's role in managing childhood asthma in obese children.
Abstract:
Childhood obesity and asthma are major public health problems. Obesity is not only associated with increased risk of incident asthma, but it may worsen asthma severity/control. Although the mechanisms linking obesity with asthma expression have not been completely elucidated, evidence suggests that increased frequency of acute respiratory infection (ARI) and decreased corticosteroid responsiveness may help to explain how obesity worsens asthma expression. In addition, obese individuals have low vitamin D status, and emerging evidence suggests vitamin D affects risk of ARI and corticosteroid responsiveness in individuals with asthma. In this review, we summarize the association between obesity and asthma severity/control in children and discuss ARI and corticosteroid responsiveness as potential mediators in the obesity-asthma pathway. We also discuss the potential role of vitamin D, including a brief summary of recent randomized controlled trials of vitamin D supplementation.
More Related Videos
05:31Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
Published on: August 7, 2017
08:30Intraperitoneal Glucose Tolerance Test, Measurement of Lung Function, and Fixation of the Lung to Study the Impact of Obesity and Impaired Metabolism on Pulmonary Outcomes
Published on: March 15, 2018
Related Concept Videos
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma-I: Introduction
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Asthma-III: Symptoms and Complications
Classification of Asthma
Role of Skin in Vitamin D Synthesis
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin...