Atopic dermatitis (AD) is a common chronic inflammatory skin condition, primarily affecting children in urban and high-income areas. Its prevalence has increased significantly over the past 30 years, with up to 20% of children affected, often within their first year of life. AD is characterized by erythematous, scaly, pruritic lesions, xerosis, and frequent atopy, with distinct clinical features in children compared to adults. The pathophysiology of AD involves skin barrier dysfunction, immune response alterations, and environmental triggers. Genetic factors, particularly mutations in the filaggrin gene, play a significant role in severe AD, leading to increased water loss and skin dehydration. Immunologically, a Th2-predominant response drives inflammation, and environmental exposures, such as air pollutants and irritants, exacerbate the condition. Recent studies suggest that dietary habits, particularly a high intake of ultra-processed foods (UPFs), may contribute to AD by activating inflammatory pathways. UPFs, rich in advanced glycation end products (AGEs), induce oxidative stress and inflammation, potentially worsening skin damage. This study aims to explore the potential role of UPF-derived compounds, especially AGEs, in the pathogenesis of pediatric AD.
Study Type
OBSERVATIONAL
Enrollment
100
Evaluation of dietary consumption of ultraprocessed foods
Department of Traslational Medical Science - University of Naples Federico II
Naples, Naples, Italy
Comparative evaluation of dietary consumption of ultraprocessed foods (UPFs)
Comparative evaluation of dietary consumption of UPFs in patients aged from 6 months to 10 years diagnosed with AD and in healthy controls matched for age and sex
Time frame: First year
Comparative evaluation of dietary consumption of dietary advanced glycation end products (AGEs)
Comparative evaluation of dietary consumption of dietary AGEs in patients aged from 6 months to 10 years diagnosed with AD and in healthy controls matched for age and sex
Time frame: First year
Assessment of skin AGEs accumulation level
Evaluation of subcutaneous AGEs concentrations in patients aged from 6 months to 10 years diagnosed with AD and in healthy controls matched for age and sex
Time frame: First year
Assessment of the effects of AGEs on the expression of tight junction proteins in human keratinocytes
Assessment of the effects of AGEs on the expression of tight junction proteins in human keratinocytes, both under basal conditions and after in vitro stimulation with AGEs
Time frame: Second year
Effects of AGEs intake on SCORAD/EASI scores
Correlation between AGEs intake and Scoring Atopic Dermatitis (SCORAD Score 0 absent - 130 severe) and Eczema Area and Severity Index (EASI Score 0 absent - 72 severe)
Time frame: First year
Evaluation of transepidermal water loss (TEWL)
TEWL assessment
Time frame: First year
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