RESUMO
Acne inversa is a chronic inflammatory skin disease of the folliculo-sebaceous-apocrine unit.Currently,genetic and immunological factors are hot topics in the study of its pathogenesis.Genetic factors are mainly related to γ-secretase mutations,and abnormal expression of the γ-secretase-Notch axis leads to increased keratinization of hair follicles and inflammation in some patients with haploinsufficiency of the y-secretase gene.Mutations in the γ-secretase gene are not necessary for acne inversa,and the risk of Alzheimer's disease in familial acne inversa patients still remains unclear.Some progress has been made in researches on the association of genotype with phenotype in acne inversa patients,but further studies with large sample size are needed for verification.
RESUMO
Acne inversa is a chronic inflammatory skin disease of the folliculo-sebaceous-apocrine unit. Currently, genetic and immunological factors are hot topics in the study of its pathogenesis. Genetic factors are mainly related to γ-secretase mutations, and abnormal expression of the γ-secretase-Notch axis leads to increased keratinization of hair follicles and inflammation in some patients with haploinsufficiency of the γ-secretase gene. Mutations in the γ-secretase gene are not necessary for acne inversa, and the risk of Alzheimer′s disease in familial acne inversa patients still remains unclear. Some progress has been made in researches on the association of genotype with phenotype in acne inversa patients, but further studies with large sample size are needed for verification.
RESUMO
Objective The purpose of this study was to detect serum 25-hydroxyvitamin D [25-(OH) VitD] levels in children with atopic dermatitis (AD) and to explore its association with food allergy (FA).Methods Sixty cases of infant patients with AD have been collected.The morning fasting venous blood were obtained to check the 25-(OH)VitD level in serum.Moreover,IgE in 6 kinds of common food was also tested.Multiple regression analysis was used to analyze the relation between 25-(OH)VitD level in serum and FA.The potential risks and confounding factors were adjusted.Results Among the 60 AD children,67.4％ of them had FA,and the majority of them had milk allergy (86.84％),no wheat allergy was found.There was a positive correlation between 25-(OH) VitD levels and age (r=0.46,P＜ 0.01),but no statistical correlation with total IgE levels (P＞0.05).25-(OH)VitD deficiency may significantly increase the risk of suffering from FA (OR=11.20,95％CI:1.35-73.66,P=0.023).Conclusion The decrease of the 25-(OH)VitD level in infant patients with AD is associated with FA.What's more,25-(OH)VitD deficiency may be a risk factor for increasing FA.