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  • Title: Serum sRAGE levels in children with atopic dermatitis: a prospective study.
    Author: Eke-Gungor H, Sagiroglu B, Can-Coskun ZN, Kocer D, Karakukcu Ç.
    Journal: Postepy Dermatol Alergol; 2023 Dec; 40(6):766-771. PubMed ID: 38282874.
    Abstract:
    INTRODUCTION: Atopic dermatitis (AD) is chronic inflammatory skin disorder. The receptor for advanced glycation end products (RAGE) plays a role in inflammatory reactions. The soluble form of RAGE (sRAGE) acts as a decoy to inhibit interactions of RAGE. AIM: To determine serum sRAGE levels in children with AD. MATERIAL AND METHODS: AD diagnosis was made according to Hanifin and Rajka criteria. Disease severity was scored by the scoring atopic dermatitis (SCORAD) index. Skin prick testing (SPT), total immunoglobulin E (Ig E) and eosinophil counts were analysed. The sRAGE levels were determined using ELISA technique. RESULTS: The children, aged 0.4 to 2.0 years with AD (n = 65) were investigated in two groups according to the presence (AD+/Atopy+ [n = 40]) or absence (AD+/Atopy- [n = 25]) of SPT positivity. The comparisons were made with a healthy control group matched for age and sex. The medians (interquartile range) of sRAGE levels in patient and control groups were 8.43 (1.04-18.37) and 14.09 (6.35-28.64), respectively (p < 0.001). The medians (interquartile range) of sRAGE levels in AD+/Atopy+, AD+/Atopy- and control groups were 8.5 (3.1-17.27), 7.75 (1.04-18.37) and 14.09 (6.35-28.64), respectively (p = 0.004). Correlation analysis failed to reach significance with the disease severity sRAGE levels, total IgE levels and eosinophil counts. CONCLUSIONS: To our knowledge, this is the first study investigating the association of sRAGE levels with AD and disease severity in childhood. Serum sRAGE levels are decreased in AD but not correlated with disease severity. sRAGE levels may be important in the AD disease process.
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