ABSTRACT
Atopic dermatitis (AD) is an inflammatory skin disorder that is both uncomfortable and distressing to patients, and its prevalence has been steadily increasing. It is obvious that the identification of efficient markers of AD in plasma would offer the possibility of effective diagnosis, prevention, and treatment strategies. In this study, a proteomic approach was used to analyze plasma glycoproteins from both children with AD and healthy child donors. Several protein spots showing significant quantitative changes in the AD patients were identified. Through sequential studies, it was confirmed that CD5L and ApoE were significantly up-regulated or down-regulated, respectively, in the plasma from AD patients compared with that from healthy donors. In addition, we suggest that the up-regulated CD5L in AD patients causes eosinophilia by inhibiting apoptosis or promoting the proliferation of eosinophils either in combination with or without IL-5. The glycoproteomic data in this study provides clues to understanding the mechanism of atopic alterations in plasma and suggests AD-related proteins can be used as candidate markers for AD.
Subject(s)
Child , Female , Humans , Male , Apolipoproteins E/blood , Biomarkers/blood , Cell Line , Cell Proliferation , Dermatitis, Atopic/metabolism , Eosinophilia/metabolism , Eosinophils/physiology , Glycoproteins/blood , Interleukin-5/metabolism , Proteomics , Scavenger Receptors, Class B/bloodABSTRACT
INTRODUCTION: Patients with atopic dermatitis suffered from night-time wakening, but the exact mechanism of it was not known. Ghrelin was involved in growth hormone secretion, regulation of appetite, anxiety,night-time wakening and stress. METHODS: Thus salivary ghreli levels during the night were measured in 40 healthy children or 40 patients with atopic dermatitis with night-time wakening. Salivary ghrelin levels at 02:00 h were markedly elevated in patients with atopic dermatitis compared to those in healthy children. RESULTS: Neither viewing control non-humorous film nor viewing humorous film had any effect on healthy children. In contrast, viewing humorous film improved night-time wakening and reduced elevation of salivary ghrelin levels in patients with atopic dermatitis, while viewing control film failed to do so. CONCLUSION: Viewing humorous film may be useful in the treatment of night-time wakening in patients with atopic dermatitis.