Increasing Comorbidities Suggest that Atopic Dermatitis Is a Systemic Disorder

Area of Science:

• Immunology
• Dermatology
• Allergy

Background:

• Atopic dermatitis (AD) is frequently associated with allergic conditions like asthma and food allergies.
• Emerging evidence suggests a broader spectrum of comorbidities beyond allergic diseases.
• Systemic immune activation is increasingly implicated in AD pathogenesis.

Purpose of the Study:

• To review and summarize the known comorbidities of atopic dermatitis.
• To explore the evidence for systemic immune activation in AD patients.
• To identify potential associations with non-allergic conditions.

Main Methods:

• Systematic review of literature on atopic dermatitis comorbidities.
• Analysis of findings from the International Eczema Council.
• Evaluation of evidence for immune activation in peripheral blood.

Main Results:

• AD comorbidities extend beyond allergic conditions to include infections.
• A strong pattern of immune activation in peripheral blood was observed.
• Associations with cardiovascular, neuropsychiatric, and malignant diseases are reported but require further study.

Conclusions:

• Atopic dermatitis is associated with significant systemic immune activation.
• The propensity for infections is a key comorbidity of AD.
• Future research should investigate AD's impact on non-allergic comorbidities and evaluate interventions accordingly.