Is Food-Triggered Atopic Dermatitis a Form of Systemic Contact Dermatitis?

Published On 2024/1/29

Food allergy in atopic dermatitis is mediated by complex immune interactions between genetics, diet, environment, and the microbiome. When contact between inflamed skin and food antigens occurs, contact hypersensitivity can develop. Consequently, systemic contact dermatitis (SCD) can occur after ingestion of allergenic foods or food additives in the setting of a Th2 response with CLA-positive T cells, triggering dermatitis where skin resident memory lymphocytes reside. This phenomenon explains food-triggered dermatitis. Atopy patch tests (APTs) detect sensitization to food proteins responsible for SCD, which in turn can be confirmed by oral food challenge with delayed interpretation. We summarize the literature on using APTs to identify foods for oral challenge with dermatitis as an outcome. In dermatitis patients at risk for Th2 skewing based on a history of childhood-onset flexural dermatitis, shared decision …

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Peter Lio

Peter Lio

Northwestern University

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Atopic Dermatitis

Itch

Alternative Medicine

Integrative Dermatology

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Other Articles from authors

Peter Lio

Peter Lio

Northwestern University

Is Food-Triggered Atopic Dermatitis a Form of Systemic Contact Dermatitis?

Food allergy in atopic dermatitis is mediated by complex immune interactions between genetics, diet, environment, and the microbiome. When contact between inflamed skin and food antigens occurs, contact hypersensitivity can develop. Consequently, systemic contact dermatitis (SCD) can occur after ingestion of allergenic foods or food additives in the setting of a Th2 response with CLA-positive T cells, triggering dermatitis where skin resident memory lymphocytes reside. This phenomenon explains food-triggered dermatitis. Atopy patch tests (APTs) detect sensitization to food proteins responsible for SCD, which in turn can be confirmed by oral food challenge with delayed interpretation. We summarize the literature on using APTs to identify foods for oral challenge with dermatitis as an outcome. In dermatitis patients at risk for Th2 skewing based on a history of childhood-onset flexural dermatitis, shared decision …

Peter Lio

Peter Lio

Northwestern University

Systemic Treatments for Atopic Dermatitis: Systematic Review and Network Meta-Analysis of Randomized Trials

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Peter Lio

Peter Lio

Northwestern University

Nonsteroidal Approaches for Atopic Dermatitis: A Clinical Update

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Peter Lio

Peter Lio

Northwestern University

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Atopic dermatitis (AD) has a complex pathogenesis that leads to the characteristic itchy, eczematous skin findings. Treatment of AD is aimed at alleviating symptoms, preventing exacerbations and infections, and minimizing long-term risks. Treatment depends on the extent and severity of the AD but almost always includes topical therapies as a first line and often in addition to other treatments. These topicals include a variety of moisturizers and non-pharmacologic preparations, steroids, crisaborole, and calcineurin inhibitors, as well as a topical Janus kinase (JAK) inhibitor. Each has strengths and weaknesses in terms of efficacy, accessibility, and safety/tolerability. Given the heterogeneity of AD, it is important to be able to call upon a variety of topical therapies to meet individual needs.

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Peter Lio

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Northwestern University

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Northwestern University

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Peter Lio

Peter Lio

Northwestern University

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Introduction/Background Tralokinumab, an IL-13 targeted biologic approved in the United States (US) for adult patients with moderate-to-severe atopic dermatitis (AD), improved patient-reported outcomes (PROs) in clinical trials and after 4 weeks of use in the real-world setting. Objectives This 6-month interim analysis evaluated the real-world impact of tralokinumab on PROs in adult patients. Methods This is an interim analysis of an ongoing 52-week patient survey study enrolling US AD patients from the AdbryTM AdvocateTM Program. Patients completed the baseline survey close to tralokinumab initiation. Data on demographics and PROs including weekly itch numeric rating scale (NRS), eczema-related weekly sleep NRS, Dermatology Life Quality Index (DLQI), and Treatment Satisfaction Questionnaire for Medication (TSQM-9) were collected. Percent …

Peter Lio

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Northwestern University

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2023/11/13

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